Multidimensional array in java jobs

need to record audio, save the file after 2 minutes, create new file, save the file after 2 minutes and so on. must run only in background. need to use Android Studio and Java. Not Kotlin

...echoes or long delays. Because the app revolves around groups, I also need a solid set of admin controls: the room creator should be able to mute or remove users, lock a room, and assign co-moderators. A simple dashboard or in-room toolbar is fine as long as the workflow is intuitive. We can start with this focused feature set—group voice channels plus admin moderation—and keep the codebase modular so we can layer in extras like private messages, file sharing, or end-to-end encryption later if the roadmap calls for it. Preferred stack • Native Android (Kotlin or Java) using WebRTC, Agora, or a comparable real-time audio SDK • Lightweight back-end (Firebase, Node, or another cloud service) for user auth and room state Deliverables ...

...technical "must-haves" with the actual project goals. Here is how you can organize that text for maximum clarity: ### Full-Stack Architect (Java/Spring & Angular/Micro-Frontends) ### 2. Role Overview We are looking for an SME to lead the design and optimization of a high-performance agent application. You will be responsible for end-to-end architecture, from UI patterns to microservices and cloud deployment. ### 3. Core Technical Stack Organize your requirements into logical categories so experts can quickly see if they fit. * **Backend & Cloud:** Java/J2EE, Spring, Hibernate, Oracle DB, and Microservices. * **Infrastructure:** Expertise in ECS, Kubernetes, and OpenShift. * **Data & Performance:** Elastic Search, NoSQL, Caching solutions,...

...built this kind of system before. The app’s core loop is simple: users complete surveys, watch ads, or make small in-app purchases and are rewarded with points that are stored against their profile. What I need built • Rewards points system that instantly credits points for three earning channels—completed surveys, rewarded ads, and verified in-app purchases—and shows the live balance on every screen. • User profile management with secure sign-in (e-mail, Google, or similar), avatar, and a running history of earned points. All data must sync to the cloud so users keep their balance if they reinstall. Preferred stack Native Android (Android Studio). Kotlin is ideal, Java is fine. You can propose Firebase, Supabase, or anot...

...unpredictable demand. My primary interest lies in wind energy, but I also plan to integrate a commercial-scale solar PV array whose main purpose is to drive down electricity costs. The job is to build (or adapt) a simulation that captures: • Hour-to-hour variability of a sizeable wind fleet • Output and cost impact of a commercial rooftop or ground-mount PV system • Stochastic or scenario-based load profiles that reflect real-world uncertainty I am comfortable with Python (PyPSA, Pandapower), MATLAB/Simulink, or DIgSILENT PowerFactory—use whatever you feel delivers the most transparent and reproducible results. I will provide resource data and basic load traces; you turn them into a working model, run the key scenarios, and present the find...

...the keyboard is in use, capture each word in the background and tag it with an emotion label (happy, sad, angry, etc.). • At the end of every 7-day cycle, compile a weekly recap and keep the previous weeks available for scrolling back. • Inside a settings or dashboard screen, display the recap in an interactive bar, pie, or line chart—whichever communicates the distribution of emotions best. Technical notes – Native Android code in Kotlin or Java is fine; please follow modern practices (Jetpack libraries, MVVM preferred). – Data can live in Room or another lightweight local DB. – Feel free to integrate MPAndroidChart or a comparable open-source graph library for the visual. – The code should...

...built with clean, well-tested code. Your job is to design and implement REST APIs in both Java and Python, wire them up to PostgreSQL for transactional storage, and index searchable content into OpenSearch so that each event is instantly discoverable. The core of the work is twofold. First, map and integrate the existing internal services with the cloud resources I will provide (IAM-secured endpoints, message queues, and object storage). Second, expose that integrated functionality through RESTful endpoints that follow standard HTTP semantics, are documented with OpenAPI/Swagger, and include unit and integration tests. When the work is complete I expect: • A Git repository containing modular, readable Java and Python services. • Docker-ready builds t...

I’m ready to bring a new food-delivery concept to life and need an experienced Android developer to build a complete mobile app from the ground up. The core idea is straightforward: customers browse local restaurant menus, place an order, pay in-app, and track their courier in real time until the meal arrives at their door. Here’s what I have in mind: • A clean, intuitive customer interface for account sign-up/login, location detection, menu browsing with search & filters, customisable orders, cart management, secure checkout, and live order status. • A lightweight courier module that receives delivery requests, turn-by-turn navigation, and status updates (“accepted”, “picked up”, “delivered”). • ...

...build custom plugins, contribute OpenSearch commits, perform bug fixes, and optimize search functionality for our Lucene-based search engine projects. This is a short-term to ongoing remote contract (10-20 hours/week initially). Key Requirements 5+ years hands-on experience with OpenSearch, Elasticsearch, or Solr (OpenSearch preferred). Strong proficiency in Java (core language, JVM tuning, build tools like Maven/Gradle). Deep expertise in Apache Lucene (indexing, querying, analyzers, postings, segments). Proven track record building plugins/extensions (e.g., custom analyzers, scorers, or transport layers). Experience with OpenSearch contributions (GitHub PRs, release processes) and bug triage/fixes. Familiarity with search engine internals: inverted indexes,...

...profiles, pick an available slot, confirm the booking, and automatically receive a push or in-app reminder before their visit. The flow should stay friction-free, so skip any sign-up or social login screens; users land straight on the home screen and start searching. Core screens and behaviour • Doctor list with photo, specialty, and quick bio • Appointment calendar per doctor with real-time slot availability • Simple booking confirmation page and success screen • Local notification reminding the user of the upcoming appointment Design can stay minimal—native Material components are fine—but navigation must feel intuitive and responsive across current Android versions. Code in Kotlin (preferred) or Java, structured for easy ...

...sign-up / login flow • Responsive web interface that works smoothly on phone, tablet, and desktop • MCQ test engine with a visible countdown that auto-submits when time expires • Instant results page showing score, correct answers, and basic analytics • Admin dashboard for bulk question upload, test creation, and user management Tech preference: React on the front end and either Node.js or Java on the back end. If you have an alternate stack that meets the requirements and speeds development, let’s discuss; the priority is clean code, clear documentation, and future scalability. I’ve allocated a sensible budget and am happy to structure it across milestones (MVP, admin panel, final polish). The full build should be completed within four...

...revolves around two key capabilities: • Workout tracker – log exercises, sets, reps and rest, then surface progress stats in a simple dashboard. • Custom program builder – drag-and-drop or template-based creation of multi-week plans, with the ability to edit on the fly. A lightweight account system is required: email or Google sign-in, basic profile storage, and cloud sync for routines and history—nothing more elaborate such as leaderboards or community messaging at this stage. Material-style UI, smooth navigation and offline functionality are important. Please structure the code clearly (Kotlin or Java), document major classes, and supply the final APK along with source in a Git repo so I can continue iterating after launch. ...

I need a developer who can put together a simple, static website in Java for my new packaged drinking-water venture. The visual direction is already set: a classic, elegant look that reflects purity and trust. All logo files and brand assets are in hand, so you can jump straight into layout and coding without waiting on design collateral. Scope of pages • Home • About Us • Product • Contact Us • Query Form (basic enquiry capture) The site will be hosted in the cloud, and I’d like the hosting plan and domain secured for the first 12 months as part of the job. Clean, well-commented code is important because I may expand the site later. Deliverables 1. Fully functional static Java website with the five pages abov...

I need a complete, code-compliant design package for a 100 kW rooftop PV array on an office building in the United States. Because the system will be submitted for permits and utility interconnection here, proven US experience is essential—please be comfortable working with the latest NEC, local AHJ requirements, and typical utility interconnection rules. Project context • Building type: mid-sized commercial office. • Available infrastructure: ample, unobstructed roof area; no parking-lot or ground mounts planned. • Primary objective: strengthen the company’s environmental sustainability profile; cost savings are welcome but secondary. What I expect from your work 1. Optimal string and inverter sizing, shade and production analysis (Helios...

...integrity—I am willing to trade speed for absolute correctness. The work involves: • Understanding the E6 database schema, metadata tables, and file vault structure • Writing repeatable PL/SQL / SQL Plus queries or custom Java-based utilities that can scale to the full production volume • Exporting BOMs, items, revisions, attributes, attachments, and related files in a format Teamcenter import tools will accept (XML, CSV, JT, bulk-load packages, etc.) • Logging, error handling, and reconciliation reports that prove every record in Agile has an exact counterpart in the export set • A short knowledge-transfer session so my internal IT team can rerun the process for dress-rehearsal loads and the final cutover Acceptance...

...Intern." Experience Level: Strictly filter for "Internship" or "Entry-Level" (0-1 years of experience). Do not apply to mid-level or senior roles. Relevance Check: Briefly scan the job description. The role must require skills that match my resume (e.g., C++, Java, Python, hardware-software integration, digital logic, or cloud computing). If it requires skills I do not possess (like specialized medical software or 5+ years of experience), skip it. 2. Apply: Fill out the application accurately using only the information provided in my documents. 3. Submit: Submit the application using a designated email address I will provide. 4. Confirm (Mandatory): Forward every single application confirmation email to my personal tracking inbox. This step is...

I need an Electrical Professional Engineer (PE) to update our existing solar drawing plans from 2014 NEC to 202...our existing solar drawing plans from 2014 NEC to 2020 NEC and provide a professional seal. Requirements: - Update electrical codes - Existing plans in PDF format - Update any references from 2014 NEC to 2020 NEC - Licensed in the State of South Carolina Ideal Skills and Experience: - Electrical Professional Engineer (PE) certification - Familiarity with NEC 2020 - Experience with solar drawing plans - Proficient in working with PDF documents Please ensure accuracy and compliance with the latest codes, with emphasis on article 690 of NEC and appropriate fire setbacks of array (3' from sides and ridge. Will need to submit with "seal&quo...

...coding in Kotlin or Java (your call), device-compatibility testing, and deployment to Google Play. On the web side, I need a modern, responsive site that mirrors the app’s core functions and brand style. Feel free to recommend the stack—React, Vue, Laravel, Django, or another framework you’re confident will scale. To keep things clear, here’s what I expect at hand-off: • Production-ready website on my hosting • Signed Android APK live (or ready to publish) in Google Play Console • All source code in a private repository, well documented • Basic admin panel or CMS so I can manage content without touching code If you have experience building synchronized Android + web solutions and can guide best practices for UX, p...

Role Description : MERN Stack Instructor + Java Instructor conducting an internal LDP program for a company Ideal Instructor Requirements for MERN Stack : JavaScript / TypeScript React / Node.js Basics / MongoDB Ideal Instructor Requirements for Java: Java Basics / Spring Boot / JUnit (Testing) REST APIs Coding conventions / best practices Support for workshop / hackathon Compensation: 60k-70k per month Job location : Bangalore (5 days in office ) 5hrs

I’d like a self-contained, Maven-driven demo that shows how a Wildfly 20 Java servlet can talk to three separate mobile authenticators—Microsoft Authenticator, Google Authenticator and Duo Authenticator—and report back the outcome of each challenge. Scope • Focus exclusively on “second-factor” calls: how the servlet initiates a push / TOTP / Duo prompt (the “sending signal” part) and how it parses the success, timeout or failure response that comes back (“receiving results”). • No UI polish is necessary; a simple JSP or REST endpoint that prints JSON or plain text is fine as long as the code flow is clear. • Keep the sample lean but complete: working source, config files, and any required libraries or REST c...

...strong expertise in VAPT patching and secure infrastructure practices. The ideal candidate will have hands-on experience in cloud environments, automation, and secure application deployment. Required Skills: Azure Terratorm Python Docker Shell Scripting Java GitHub Collaboration Linux-based OS Good to Have (Optional Skills): Packer FastAPI Spring Boot Key Responsibilities: Perform vulnerability assessment and patching (VAPT) Manage and secure cloud infrastructure (Azure) Automate deployments using Terraform and scripting tools Collaborate with development and DevOps teams via GitHub Ensure secure coding and deployment practices Eligibility: Minimum 4+ years of relevant experience in the above skill set Strong problem-solving and communication skills Abil...

No, I don't own the domain and hosting; I need a full-featured public website built entirely with Java. The visual energy and smooth navigation of and capture the style I’m after, so please treat those sites as design and UX benchmarks while still giving my brand its own voice. Core scope • One primary section focused on Product Information, because the site’s main job is to present the services my startup offers. • Each service page must carry two clear elements: a concise service description and transparent pricing information. That content will be ready for you in a document; your task is to integrate it cleanly. Technical expectations • Java stack only—Spring Boot, Jakarta EE, or a JSP/Servlet approach is fine as lo...

...observability + feedback loop (logs, metrics, iteration) Must-Have Experience Built and deployed microservices / APIs in production Worked on legacy modernization or refactoring projects Hands-on with CI/CD + cloud (AWS / Azure / GCP) Strong experience with code reviews, branching, PR workflows AI / Modern Dev (Mandatory) You must have real experience using AI in development, not just awareness: Daily use of tools like: GitHub Copilot / Cursor / Claude Code / ChatGPT Experience: Generating production code using AI Using AI for debugging / refactoring Creating test cases via AI Comfortable reviewing and validating AI-generated code Tools / Stack (Expected Exposure) Backend: Java / .NET / Node.js APIs: REST / GraphQL Cloud: AWS / Azure DevOps: GitHub / GitLab / Jenkin...

...test automation Contribute to feedback loop (improve outputs via iteration) Must-Have Experience Hands-on with LLMs in real projects (not just POCs) Built something using: LangChain / LlamaIndex / custom pipelines (or equivalent) Experience working with: APIs backend systems structured data AI Tools (Strong Expectation) You should actively use: Claude / ChatGPT / Gemini Cursor / Copilot / AI coding tools Prompt engineering in real workflows Debugging and refining AI outputs Bonus (Very Relevant) RAG (Retrieval-Augmented Generation) Codebase indexing / embeddings Automated test generation Experience with logs / telemetry for feedback loops Tech Stack Python (preferred) Node.js / Java (good to have) Vector DBs (Pinecone, Weaviate, etc.) APIs, JSON, data pipelines What...

I need a complete, code-compliant design package for a 100 kW rooftop PV array on an office building in the United States. Because the system will be submitted for permits and utility interconnection here, proven US experience is essential—please be comfortable working with the latest NEC, local AHJ requirements, and typical utility interconnection rules. Project context • Building type: mid-sized commercial office. • Available infrastructure: ample, unobstructed roof area; no parking-lot or ground mounts planned. • Primary objective: strengthen the company’s environmental sustainability profile; cost savings are welcome but secondary. What I expect from your work 1. Optimal string and inverter sizing, shade and production analysis (Helios...

I need an experienced developer to integrate the Sharekhan Trade Tiger API. The primary function is accessing 20 years of historical data. Additionally, I need real-time market data for the equity market. Key requirements: - Access to 20 years of historical data - Real-time market data for equities - Proficiency in working with financial APIs - Experience in data handling and integration - Strong programming skills, preferably in Python or Java Please provide examples of previous similar work.

Subject: Custom Imbalance Block Data Feeds for Renko/Block Charts Goal: $30 Fixed Price Create two separate, non-time-based data feeds from Line Break + QuantTower Footprint Imbalance data. These feeds will be used to generate custom Renko/block charts, but must be designed so they can be easily applied to any existing chart type in the platform. Data Feed Requirements Source Data: Line Break chart (any setting, e.g. 1-line, 1-tick) QuantTower Footprint Imbalance data (bid/ask imbalance numbers or structure dots shown inside each bar) Core Logic (for both feeds): Ignore the direction of the source Line Break bar. Only use Footprint Imbalance points (numbers). One source bar can produce multiple new blocks if it has multiple imbalance prints. Blocks are created from the actual pr...

...experienced full-stack developer who is comfortable in both Angular and Java. The core of the platform will be written in Java on the server side, exposing RESTful endpoints, while the client side must be a clean, responsive Angular interface that feels fast even when large data sets are moving through it. You should have at least four years of hands-on experience with: • Modern Angular (v10+) components, services and state management • Java (preferably 11+) with Spring Boot or a similar framework for rapid API development • Secure, token-based authentication and role management • Relational databases and basic schema design What I need from you: 1. A modular codebase that cleanly separates concerns so future features are si...

We are looking for a highly skilled Java Full Stack Developer with 5+ years of hands-on experience in designing, developing, and deploying scalable applications. The ideal candidate should have strong expertise in Core Java, Spring/Spring Boot, RESTful web services, MySQL, and REACT. Experience with Liferay is added advantage. ⸻ Key Responsibilities • Design, develop, and maintain Java-based backend services and RESTful APIs • Work on full-stack development, including front-end components and integration with backend systems • Develop efficient database queries, procedures, and schemas using MySQL • Collaborate with cross-functional teams to deliver high-quality software solutions • Troubleshoot, optimize, and improve application ...

I need a production-ready Android application that lets passengers, bus drivers, and administrators see exactly where every bus is in real time. The core of the build is GPS-based live tracking displayed on a Google-style map view, coupled with dynamic ETA calculations so users always know how many minutes remain until the next stop. Key workflow • Passengers open the app, pick a route, watch buses move on the map, and receive push notifications when their chosen bus is running late or is about to arrive. • Drivers log in to update their status, start or end a trip, and automatically stream location data in the background. • Administrators access an in-app dashboard (or a lightweight web console, if that is easier) to add routes, manage sche...

...link "" in flutter and app have features app icon, splash screen, Enable Installs Statistics, Enable Java Script, Enable Swipe To Refresh, Load Cache Else Network, Allow HTTP Requests, Add Internet Permission, Add Storage Permissions, Add GPS Permissions, Add Audio Permissions, Add Video Permissions, Enable Firebase setting, Enable Push Notification some more requirement Requirements: • Load a specific URL inside a WebView • Pull-to-refresh support • Error handling (e.g. show a message if no internet connection) • App icon and splash screen (we’ll provide design assets) • Minimal permissions (e.g., allow file/camera upload via browser input type) • Push notifications via firebase (include integration and testing setup) • ...

I need a comprehensive online entrance exam software built on Java technology. The software should support multiple-choice questions, essay-type questions, and problem-solving/coding questions. Key Requirements: - User Roles: Students, Examiners/Teachers, Administrators - Features for Exam Creation and Management: - Question Bank: A robust repository of questions - Automated Grading: For efficient evaluation - Timed Exams: To simulate real exam conditions Ideal Skills and Experience: - Proficiency in Java and experience with developing educational software - Knowledge in database management for a question bank - Familiarity with automated grading algorithms - Experience in creating user-friendly interfaces for multiple user roles Looking for a de...

1. Project Overview(Backend Microservices System (SPRING FRAMEWORK ONLY)) We are developing a large-scale, enterprise-level digital commerce platform on a Java-based microservices architecture (Spring Ecosystem). The development phase is "LARGELY COMPLETED". We are not looking for a builder to start from scratch, but rather a "finisher"—a skilled Backend Engineer to take ownership of the existing codebase. The primary goal is to validate current integrations, stabilize the logic, and ensure the system is production-ready through rigorous testing. WE WILL PROVIDE TESTING HELP FROM OUR SIDE TOO. 2. Current Project Status & Scope The following microservices have been developed. Your role is to ensure these services communicate seamlessly, handle edge cas...

...mix legacy Mirth Connect builds with the latest BridgeLink releases, and they need steady, hands-on attention. Most of the work centres on supporting and fine-tuning the channels and destinations already in production; performance slow-downs on the older Mirth instances are the issues I meet most often. All access is through AnyDesk screen-share sessions—no direct log-ins or code exports—so you should be comfortable working live while we talk through each ticket. Your background must cover both the classic Mirth interface and the newer BridgeLink tool-set, with enough HL7, JavaScript, Java and SQL knowledge to trace bottlenecks, tweak transformers, and keep message queues flowing smoothly. Typical tasks you’ll handle: • Diagnose and resolve per...

...logic from a current web-based quoter. I will be typing the input values by hand, after which the sheet should run a set of advanced formulas—think nested IFs, LOOKUPs, array calculations, or any other complex functions you deem best—to return one final quoted figure in a clearly labeled cell. The results has to be compared to those of the web based quoter. The structure of the file must stay tidy and easy for non-technical teammates to follow, with protective formatting on any formula cells. Please document the key formulas inline (brief comments are fine) so future tweaks are straightforward. The formula part has to be in a special sheet, so we have the plenty of space to create more modifications. The formula can be changed (change of price year p...

...P2B and B2P transactions right out of the gate. Bank-grade encryption, a strict zero-trust architecture, and full OWASP compliance are non-negotiable pillars of the build. Phase 1 – Mobile First • Design and code the core escrow workflow for peer-to-peer and business-to-business payments. • Implement strong customer authentication, role-based access, and end-to-end encrypted data at rest and in transit. • Integrate a modular backend API so we can later expose the same services to a web portal and USSD interface without rewriting business logic. Security & Compliance Every line must pass automated OWASP checks, static code analysis, and peer review. Key vault management, token-based sessions, and granular audit trails are required so the plat...

...are defined; I now need a developer who can translate them into a smooth, production-ready app. You will own the coding of the Android front-end and connect it to a scalable cloud back-end that supports real-time data exchange, notifications, and secure user authentication. Clean architecture, thoughtful UI/UX, and solid performance are priorities. I’m open to your recommended stack—Kotlin or Java in Android Studio with Firebase, RESTful APIs, or other proven solutions. Deliverables • Complete Android Studio project with readable, well-commented source code • Signed release APK/AAB ready for Google Play submission • Concise setup & deployment documentation When you reply, please share links to Android social apps you’ve built, ...

...Engine) Objective: Build an automated pipeline that receives data from the front end, processes AI logic, and returns the results in a standard format. Receiving and Authentication Node (Webhook Receiver) Listen for POST requests from the WP plugin. Data unpacking: Parse the received JSON Payload, which includes: TaskType (Article / ImageSEO), API_Key (the LLM API Key filled in by the user), Product_Data (name, description, link, etc.), Image_IDs (list of IDs of images to be optimized). Authorization logic: For all subsequent API calls made by AI nodes, the API Key must be the one dynamically passed in the Payload. It is strictly prohibited to hard-code the code in N8N. 2. Core Branch A: SEO Article Generator (Task Type: Article) Search node: Call...

I'm seeking an experienced developer to improve my existing front-end tests using Java, Selenium, and Cucumber. Key tasks include: - Analyzing current test suite - Identifying and resolving inefficiencies - Enhancing test coverage and reliability Ideal skills and experience: - Proficiency in Java, Selenium, and Cucumber - Strong background in front-end testing - Experience with test optimization and debugging Looking for someone detail-oriented, with a strong problem-solving mindset.

...(primarily job seekers in the US) to outsource repetitive, time-intensive tasks such as job applications and structured data entry to a distributed workforce. The core idea is to create a managed marketplace where tasks are standardized, tracked, quality-controlled, and fulfilled efficiently through human operators. The platform should ensure transparency, reliability, and turnaround time guarantees, while maintaining strong control over quality and worker performance. From a product standpoint, this will function as a two-sided workflow-driven system with three primary roles: clients, workers, and administrators. Clients should be able to onboard, purchase credits or pay for services, submit structured tasks (including forms and file uploads), and track progress in real ...

I’m building a new web application and the entire user interface needs to be planned, coded, and polished in React while communicating seamlessly with an existing Java-based REST API. The goal is a fast, responsive, component-driven front end that speaks the same language as the Java services behind it, so a solid grasp of both React (hooks, context, modern tooling) and core Java concepts is essential. Scope of work • Set up the project scaffold (Create React App or Vite, ESLint, Prettier, Jest). • Implement authentication against the provided Java endpoints, handling token storage and refresh. • Develop a reusable component library and page layouts that match supplied Figma designs. • Integrate REST calls for dashboard ...

The task is to build a complete Android utility-style mobile app, taking it from initial architecture through to a polished Google Play–ready release. I need one person who can comfortably handle both the client side (Kotlin / Java, Jetpack components, adaptive UI) and the server side—API design, database schema, and cloud deployment—so every layer meshes smoothly. Core expectations • Clean, modern Android codebase with clear separation of concerns • Secure backend (Node.js, Django or similar is fine) exposed through REST/GraphQL endpoints • Basic authentication, settings storage and offline data caching typical of a productivity or tool-oriented app • Unit tests plus concise build & deploy documentation Deliverables 1. Full Andr...

...preferred VCS). Scope of work • Review the current Kotlin/Java code (the project uses standard Android Studio tooling). • Identify why the Name and Referral No. are not updating or showing correctly. • Implement a solid fix, test it across the latest Android OS versions, and supply an APK or bundle for verification. • Leave concise inline comments so future maintenance is straightforward. Deliverables 1. Updated source code with the bug resolved. 2. A brief change-log summarising what was altered and why. 3. A compiled release-ready APK/bundle proving the issue is gone. Acceptance criteria • The correct Name and Referral No. appear consistently in every screen and stored record. • No new crashes, warnings, or performance regressions in...

...reusable—Material Design guidelines are a must so the catalog, product detail, and checkout screens feel consistent and modern. • Implement secure token-based authentication and persist sessions locally without compromising user privacy. • Ship the full, well-documented Kotlin/Java source, a signed release APK, and a short README explaining build and deployment steps. This is primarily an E-commerce app, so flawless product browsing, smooth cart operations, and responsive checkout flow are non-negotiable. I’m comfortable iterating in milestones: product catalogue first, cart and payments next, polishing and optimisation last. I will review the code style, stability on a range of devices (API 24+), and adherence to the above acceptance criteria b...

I want to turn a fresh idea into a polished desktop application I can sell and use to support my family. I’m starting from the ground up, so I need a developer who can guide me through the full lifecycle—defining a viable concept, choosing the best tech stack, coding, testing, and packaging the final installer. You’re free to work in a language you’re most comfortable with—whether that’s C#, Java, Python, Electron/JavaScript, or something comparable—as long as the result runs smoothly on Windows and can later be adapted for macOS or Linux if sales demand it. Robust error handling, an intuitive UI, and clean, well-commented code are must-haves so I can maintain or expand the product later. Deliverables • A brief proposal outli...

We’re looking for a Finland-based freelance developer! Looking for someone experienced in Java and comfortable working with AWS cloud environments to help us maintain and improve our systems. What we need: Strong Java development skills Hands-on experience with AWS (deployment, monitoring, maintenance) Ability to troubleshoot, optimize, and keep systems running smoothly Good communication and ability to work independently Nice to have: Experience with cloud architecture and scalability Familiarity with CI/CD pipelines This is a freelance/contract role with flexible hours. If you’re interested or know someone who might be a great fit, feel free to reach out!

...homes through an intuitive search and filter flow. Every renter or landlord needs a secure profile backed by email, phone, or social sign-in, and they must be able to exchange messages inside the app without sharing personal contact details. Enhanced experience Listings should appear on an interactive Google Maps view so location becomes immediately clear. I also want integrated payment processing for reservation fees or first-month deposits, plus a straightforward rating & review system so both parties build trust after every transaction. Essential deliverables • Complete UI/UX designs (Figma or similar) • Production-ready Android code (Kotlin or Java) with clean architecture and documented APIs • Admin panel or backend endpoints enabling list...

I’m Erwin, 34, and I want to bring my idea to life as a native Android app. Right now the concept is open, so I’ll lean on your expertise to shape the feature set and interface while keeping the build clean, fast, and future-proof....with me to refine the core idea and user flow. • Design a simple, modern UI that follows Google Material Design guidelines. • Develop the full Android application, including any required API calls or local data storage. • Deliver the complete, well-documented source code and a release-ready APK. Please include • Links to Android apps you’ve developed. • Your preferred tech stack (Kotlin, Java, Flutter, etc.). • Estimated timeline and any questions you need answered before starting. I’m re...

I am developing a Java-based billing system and my immediate need is rock-solid payment processing. Your task is twofold: first, build the core payment module in clean, well-structured Java; second, document the work in a clear, professional report. Scope of the build The application is centred on secure, reliable payment handling—think card transactions, error recovery, and accurate balance updates. While payment processing is the top priority, a design that leaves room for future add-ons such as invoice generation or basic customer records would be ideal. I will supply detailed specs, UI sketches, and any gateway credentials once we get started. Report requirements Alongside the code, I need a concise technical report that explains the overall architec...