Aws lambda java jobs
...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 / Jenkins Observability: Datadog / ELK / Prometheus / Grafana Databases: SQ...
...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 Stands Out (Real Signals) You’ve built something end-to-end using AI tools You rely on AI daily to write or improve code You’ve worked on real systems, not just notebooks... No companies to be apply and applicable only for individual freelancers...
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...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 sim...
...the operational mechanics of complying with the CMS Web Application Firewall (WAF) Policy and Implementation Guidance (v1.0, April 2026). The article should read as practitioner-facing technical content — not a policy summary, not marketing copy. Audience ADO engineers and tech leads responsible for WAF attachment, configuration, tuning, and ongoing operations at CMS. Assume the reader understands AWS WAF concepts (WebACLs, managed rule groups, COUNT vs. BLOCK), CloudFront/ALB/API Gateway ingress patterns, and CloudWatch/Splunk log pipelines. Do not define basic terminology. Scope (narrow — do not expand beyond this) Focus the article on the ADO WAF Lifecycle — Stages 0 through 4 (Discover & Validate → Design → Baseline Configuration → Tune Sa...
I am building a specialised web application for an import-export business and need an 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 modul...
...local machine, but I now need a small tweak plus reliable deployment on my AWS account. The tweak: the script requires one additional feature that we’ll clarify together once you’ve reviewed the code. It should remain lightweight, keep the current logic intact, and follow the same coding style. The deployment: after the update, I want the script running on AWS—ideally as an EC2-hosted service or Lambda function, depending on what you find most efficient. The instance should auto-start on reboot and log to CloudWatch (or a similarly straightforward option) so I can monitor it without extra overhead. Deliverables (acceptance criteria) • Updated Python 3.x script with the new feature fully integrated and tested • AWS setup and ...
...Multisite on AWS is suddenly showing “Error establishing a database connection.” I can log in and supply the database credentials, but beyond that I’m not sure if anything on the EC2 side was recently altered. The site is wired to a GitHub-based pipeline, so once the outage is resolved I need to keep that automated deployment flow intact. Here’s what I need from you: • Diagnose and restore the database connection so the network of sites loads normally. • Verify wp-config, security groups, DNS and any RDS or EC2 parameters tied to the failure. • Confirm the existing GitHub → AWS pipeline still pushes code successfully (or patch it if the fix requires changes). • Document the root cause and the steps you took so I can...
We are looking for a highly skilled React Developer with 5+ years of experience in building modern, scalable, and high-performing web applications. The ideal candidate should have strong expertise in React, front-end UI development, and integration with RESTful services. Experience with React Native is a strong advantage. ⸻ Key Responsibilities • Develop and mai...with UI libraries like Material-UI, Ant Design, or Bootstrap • Strong debugging and performance optimization skills • Experience with Git and CI/CD workflows • Good understanding of server environments and deployment of UI modules ⸻ Good to Have (Optional) • Experience with React Native (strong advantage) • Knowledge of TypeScript • Exposure to full stack concept • Understanding of cloud pl...
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 performance &b...
Please include your past work examples in the first line. We are seeking a Full Stack Developer t...frameworks (e.g. Angular, React, Node.js) • Knowledge of multiple back-end languages (e.g. Python/C#) and backend frameworks (e.g. Flask, Django) • Familiarity with databases (e.g. MySQL, Teradata), web servers (e.g. Apache) and UI/UX design • Experience in designing and integrating different API architectures (e.g. REST, gRPC) • Server management and deployment for the relevant environments (e.g. Azure, AWS) Secondary Requirements: • Knowledge of message brokers (e.g. Kafka, EventHub), version control (e.g. Azure DevOps, GitHub) and Websockets • Knowledge of architectural patterns (e.g. Monolith, Microservices, Serverless, Service Mesh) • Knowledge...
...a single codebase approach (React Native, Flutter, etc.) or separate native builds in Swift and Kotlin—what matters is reliability, speed and a modern UX. Core functions I have in mind include user sign-up/login, editable profiles, a swipeable feed for posts, image / video uploads, push notifications, direct and group messaging, and basic admin tools on the back end. I’m open to using Firebase, AWS Amplify, or a Node.js-based API if that speeds up real-time features and hosting. Design wise, I want a clean, social-first interface that feels instantly familiar yet fresh—nothing too cluttered, but definitely polished enough for App Store and Google Play review. Concrete deliverables: • Complete source code and project files • Testflight / APK buil...
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...MVP Scope (Phase 1): 1. Web-Based User Portal * Secure login/authentication * Clean, modern dashboard ( branded) * Ability to upload or select a building dataset * View results in a simple, investor-friendly interface ⸻ 2. Demo Data + Data Pipeline * Use preloaded sample building data * Backend structured for future real-world drone data integration * Cloud storage (AWS S3 or similar) ⸻ 3. AI / Analysis Layer (Simplified) We are not expecting fully custom AI models at this stage. Use: * Pre-trained computer vision models * APIs or lightweight detection logic System should: * Identify visible issues (cracks, wear, anomalies) * Tag or highlight areas on images ⸻ 4. Building Score Engine (Core Feature) This is the most important pa...
VICIdial Cloud Installation & 32-SIM Gateway Integration Expert Needed Job Description: We are currently using a 32-SIM GSM Gateway setup with VICIdial for inbound and outbound calling campaigns. We are looking for an experienced expert to migrate, configure, and optimize our system on a cloud-based environment. Scope of Work: Install and configure VICIdial on a cloud server (AWS / DigitalOcean / GCP) Integrate existing 32-SIM GSM Gateway with the cloud setup Configure SIP / VoIP connectivity Set up and optimize: Outbound campaigns Inbound call handling Ensure: Call quality Call routing System stability Enable: Call recording Reporting & analytics Fix data posting / call log sync issues (if any) Provide basic training and post-setup support Key Challenges to Address: Clo...
...based on real-time traffic and current speed. 3. Route planning and stop-by-stop information for every line. 4. Push notifications for all user roles covering delays, schedule changes, and service announcements. 5. Secure sign-in with role-based views (Passenger, Driver, Admin). 6. A simple backend (Firebase, AWS, or your suggested stack) that stores routes, schedules, and location streams efficiently. Deliverables • Full Android Studio project with clean, well-commented Java code. • Backend source, database schema, and deployment instructions. • API documentation and a short user guide so I can onboard new drivers and admins myself. • One-week post-handover support to squash any urgent bugs. • build debug APK that can be shared wit...
We need to create webview Mobile app for andorid and ios by this 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 fi...
...hands-on experience on - Appium (Mobile Automation) - Playwright (Web Automation) 2) Develop scalable and reusable frameworks (POM, modular frameworks) 3) Identify high-priority test scenarios and ensure test coverage alined with lean testing approach 4) Execute tests on Real devices ,Emulators/simulators , Cloud device farms (AWS). 5) Integrate automation suites into CI/CD pipelines with GitLab CI 6) Maintain test reports and quality metrics. 7) knowledge with Cypress with BDD framework,POM 8) Must have Good Knowledge of App lifecycle , Device fragmentation challenges ,Mobile-specific debugging 9) Hands on experience on Data driven testing and lean testing implimentation 10) Proficiency in Ty...
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I want a full-featured website and companion Android app that replicate UrbanCompany’s core fl...with separate dashboards and permissions • Real-time availability, OTP login, location selection via Google Maps, coupon engine, Stripe/Razorpay payments and a 5-star review system • Clean, commented code (React / or similar for web, Kotlin or Flutter for Android, Node/Express or Django for server—open to your suggestion but keep it modern) • Staging and production environments on AWS or GCP, CI/CD pipeline, basic analytics hook-up • Handover with documentation and a recorded walkthrough Acceptance will be based on a smooth end-to-end booking flow that mirrors UrbanCompany, successful multi-role logins, and deployment of both builds to my hosting...
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 developer who can deliv...
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...
...stopped working right after a previous freelancer performed AWS cost-optimization tasks (Reserved Instances, auto-scaling tweaks, and some security-group changes). Users enter their credentials, hit “Sign In,” and are immediately bounced back to the login screen with no specific error—so sessions clearly aren’t being established or persisted. Here’s what I need from you: • Diagnose the exact cause of the loop (session handling, load balancer stickiness, Cognito/IAM policy, or any other AWS-related misconfiguration). • Restore normal authentication flow so clients can reach their dashboards again. • Provide a concise technical summary of the root issue and the steps you took, so we can avoid a repeat. Stack details you&rsqu...
...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 performance issues on legacy Mirth channels • Update or patch existing channels/destinations across both platforms • Build an occasional new channel when a facility is onboarded • Docum...
...A sandbox integration that demonstrates at least one live mobile wallet transaction will form part of acceptance testing. Tech Stack Native Swift/Kotlin or a robust cross-platform framework like Flutter or React Native is acceptable; I’m open to your professional recommendation as long as performance, security, and code maintainability are fully addressed. A containerised backend (Node.js, Java Spring, or similar) running behind an API gateway with JWT or OAuth 2.0 is preferred. Deliverables (MVP) 1. Universal iOS and Android apps compiled for App Store and Google Play internal testing. 2. Secure backend API with full documentation and Postman collection. 3. Admin/ops panel (basic) for dispute management and escrow release. 4. Automated test suite covering c...
...management - Listing / feed system - Booking / request workflow - Real-time chat or notifications - Clean, modern UI/UX Admin Dashboard Features: - User management - Content/listing management - Analytics & reports - Basic support/admin controls Tech Preferences (Flexible): - Mobile: Flutter (preferred) or React Native - Backend: Firebase / Supabase / Node.js - Admin Panel: React / - Cloud: AWS / Firebase Requirements: - Clean and scalable architecture - API-based development - Secure authentication & data handling - Good communication and regular updates Deliverables: - Fully working mobile app (Android + iOS) - Web admin panel - Source code (GitHub) - Deployment support Timeline: 6–10 weeks (can be discussed) Budget: Open (prefer milestone-based payment...
...partnership, potentially full-time as revenue grows, so clean, well-documented code and proactive communication are vital. Tech environment The app is built natively for iOS with standard Apple frameworks and a cloud-based backend. If you are comfortable with Swift (or SwiftUI), RESTful APIs, payment integrations and scalable architecture, you will feel at home here. Familiarity with Firebase or AWS is a plus as we plan for larger user spikes. Success for the first phase is simple: the latest build passes TestFlight without crashes, scores noticeably better on performance metrics, and receives positive beta feedback within four weeks. Let me know how you would approach the bug sweep, the tools you prefer and your typical cadence for weekly updates....
...applicable) Dependency Injection Service Layer Pattern API Gateway-ready structure Security Requirements: Secure API endpoints Input validation and sanitization Protection against OWASP vulnerabilities Logging, monitoring, and audit trails Technical Stack (Preferred): Backend: ASP.NET Core Web API Frontend: Database: SQL Server / PostgreSQL Authentication: JWT Deployment: Cloud-ready (AWS / Azure / Docker) Performance & Scalability: Caching strategies (Redis or similar) Optimized database queries Load-ready architecture Code splitting and SSR () Deliverables: Complete Frontend + Backend source code Fully functional Library Management System API documentation (Swagger/Postman) Database schema and architecture documentation Deployment guide We are looking for a devel...
My Windows-based EC2 instance was always reachable over RDP, but suddenly the connection just times out—no pop-up errors, no credential screen, nothing. I have not knowingly altered any security groups or firewall rules and I’m unsure what may have triggered the lockout. I need you to jump in, isolate the root c...firewall and network driver health, or digging into the system logs via SSM Session Manager if necessary. As soon as connectivity is back, please give me a concise summary of what went wrong and the exact steps taken so I can avoid a repeat. Deliverables: • Working RDP access to the instance • Brief written recap of diagnostics and fixes applied If you can start right away and have solid AWS and Windows Server troubleshooting experience, ...
I’m a Python full-stack developer who also loves DevOps on AWS and the emerging world of Gen-AI and agentic AI. I’ve reached a point where I need both reliable career guidance and a steady flow of suitable freelance projects to accelerate my growth on this platform. What I need from you • Career coaching: regular video sessions to refine my positioning, portfolio, and profile so clients immediately see the value I bring in Django / FastAPI back-ends, React or front-ends, and scalable AWS deployments (EC2, ECS, Lambda, Terraform, GitLab CI/CD). • Project pipeline support: proven strategies or direct introductions that land web development or DevOps contracts where Python, containerisation, and AI integrations (LangChain, vector databases, Cha...
...MongoDB, and finally deploying everything on AWS. MongoDB is the non-negotiable database for this project. For the rest of the stack (React.js, Node.js, or any comparable modern framework), I’m flexible as long as performance, scalability, and clean code standards are met. Deliverables • A fully-functioning application deployed to an AWS account I’ll provide • Well-structured MongoDB schema and seed data • Source code in a Git repository with clear commit history • Concise setup & deployment documentation Please attach your CV with 2-3 international projects No one will be interviewed without any international project . only developers who have handled European client are invited Acceptance Criteria The app must run end-to-en...
...flows 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, o...
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.
...build this end-to-end product. Responsibilities include: * Translating business requirements into a scalable system design and architecture * Building a modern, responsive frontend (preferably React or ) * Developing backend services and APIs (Node.js or Java preferred) * Designing and implementing the database schema (PostgreSQL or equivalent) * Implementing task workflow logic, role-based dashboards, and admin controls * Integrating payment systems (e.g., Stripe or similar) * Setting up cloud infrastructure and deployment (AWS, GCP, or equivalent) * Ensuring security best practices and performance optimization Nice-to-have experience includes building marketplace platforms, SaaS products, workflow/task management systems, or gig economy applications. The ideal candidat...
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 widgets...
...it as a clean, stand-alone DM client that looks and feels instantly familiar to users who already know Instagram. You are free to choose the tech stack you feel delivers the snappiest real-time performance: React Native, Flutter, native Swift/Kotlin, or another robust cross-platform framework. What matters to me is that messages sync in real time through a scalable backend (Firebase, Supabase, AWS Amplify, or your preferred alternative) and that the UI mirrors Instagram’s current look closely enough that users can hop in and start chatting without a learning curve. Core expectations • Seamless sign-up / login via email, phone, or social OAuth • Real-time messaging (text, photos, videos, voice notes, emojis, GIFs) • Group chat creation & management...
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...
My Android application is already live, but a lingering bug keeps mis-displaying the user’s Name and Referral No. I need an experienced Android developer who can dive into the existing codebase, trace the root cause, and push a clean, well-documented fix to Git (or your 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 ...
...accessing camera, storage, or sensors; the app must never crash on denied permissions. • Keep UI components modular and 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...
We are migrating and hardening a healthcare-oriented web platform on AWS. We need an engineer (or small team lead) who can discover the current environment, design a safe cutover plan, execute migration and modernization (lift-and-shift where appropriate, refactor where required), and leave us with documented, automated operations (IaC, CI/CD, observability, backup/DR, security controls). What I expect from you • Review the current EC2, RDS, and S3 configurations, then right-size or redesign them for lower cost without hurting performance. • Implement cost-saving measures such as auto-scaling policies, spot or reserved instances, storage life-cycle rules, and any other best-practice features you recommend. • Harden the setup with sensible security settings and ...
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 outlining tw...
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!
...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 listing moderation, user management, and payment tracking • Play Store-ready APK, signed and aligned • Source code repository with build instructions and a short demo video that walks through search, profile login, chat, map view, payment flow, and review submis...
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...
...or GraphQL API that mirrors all major functions will keep future mobile or partner integrations simple. Please plan to deliver: • Interactive wireframes or mock-ups for the main flows • Normalized database schema and ERD • Fully implemented authentication/authorization layer • Source code in a Git repository with clear setup instructions • Deployment scripts or Docker files suitable for AWS, Azure, or similar cloud hosting Acceptance criteria 1. Job seekers can register, complete a profile, search/filter jobs, and apply—each submission updating status immediately. 2. Employers can create openings, review applicants, move them through defined hiring stages, and message candidates inside the portal. 3. Recruiters can oversee multiple e...
...scalability, and accuracy Collaborate with stakeholders to understand business needs and translate them into technical solutions Requirements: Proven experience as an AI Engineer, Machine Learning Engineer, or similar role Strong knowledge of Python and libraries such as TensorFlow, PyTorch, or scikit-learn Experience with APIs and model deployment (Docker, Kubernetes, or cloud platforms like AWS/Azure/GCP) Familiarity with LLMs, NLP, or computer vision is a plus Ability to communicate clearly and work independently Nice to Have: Experience with MLOps pipelines Background in data engineering or DevOps Experience integrating AI into production systems Project Details: Type: Freelance / Contract Duration: To be discussed Budget: Open (based on experience) Start: ASAP If you&...
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 architecture, key clas...
I need an experienced systems professional who can take ownership of my production servers from the ground up. The job starts with a full audit of the existing Linux stack (Ubuntu 22.04 on AWS EC2), then moves into tightening every layer—optimising configuration, hardening services, and putting robust security controls in place. What matters most to me is confidence that the machines are patched, performance-tuned, and continuously protected. After the initial hardening you will set up real-time monitoring and alerting (Prometheus + Grafana is currently installed but not fully wired), document a clear maintenance schedule, and remain on hand for rapid incident response. Deliverables • Comprehensive audit report with recommended fixes • Implementation of agreed ...
...PDF delivery (premium only) - Album streaming (premium only) - Raffle system with user codes Requirements: - Strong experience with Node.js (Express or NestJS) - Experience with Stripe webhooks () - Experience building scalable systems (10k+ concurrent users) - Knowledge of queues / async processing (SQS, Redis, RabbitMQ) - PostgreSQL database design - AWS experience (S3, EC2 or Lambda) - Ability to build secure access control (token / signed URLs) Nice to have: - Experience with PWA () - Experience with media streaming - Experience with high-load systems Important: This system must be built for high traffic. No synchronous webhook processing. Must use async architecture. Timeline: MVP required in 3–5 days....
...Product catalog with search and category filters • Secure user registration, login, and profile management • Shopping cart and checkout flow that supports major payment gateways • Order history and basic push notifications for status updates • Simple admin interface or API hooks so I can add, edit, or remove products without rebuilding the app Clean, maintainable code written in Kotlin or Java is preferred, and the final build must be ready for submission to Google Play. If you have experience integrating payment APIs, optimizing for varied screen sizes, and following Google’s material design guidelines, you’ll be a great fit. Please share a brief outline of your approach, any relevant store links to past Android e-commerce apps you&rsquo...