Example java source code using gui swing jobs

I already have a fully detailed excavator CAD assembly and now need to turn it into a working motion model inside Siemens Simcenter 3D. The scope is limited to the digging and lifting cycle—boom, stick, bucket and their hydraulic actuators—so there is no need to model swing, rotation or travel. Your job is to import or link my CAD, define the joints, masses, centre-of-gravity data, hydraulic cylinders and motion drivers, then run a complete dynamic simulation of one full digging–lifting sequence. I’m particularly interested in actuator loads, reaction forces at the pins, power/energy consumption and overall cycle time, so please set up the appropriate sensors and output requests. Deliverable • A concise performance analysis report (PDF or Word) generat...

More details: What programming language is your code written in? Python What kind of adjustments are needed with the API communication? Fixing bugs What types of checks need to be adjusted or added? This question was skipped by the user

Once we’re home from our 3 week swing through Colombo, the cultural triangle and the southern beaches, I’ll drop about 1–2 hours of smartphone/ osmo 4 clips plus a folder of stills into Google Drive for you. The footage shows how we navigated Sri Lanka with our young son, who has ADHD and a global speech delay, so the story centres on inclusive, family-friendly travel rather than glossy tourism shots. Your job is to turn that raw material into one polished video, complete with friendly, informative voice-over. I’m happy for you to script and record the narration (Australian accent essential, from a short Zoom call with us. Please weave in context about our travel hiring and driving a Tuk Tuk and accessibility, food and the little adjustments we made for our ...

...coordination. Users must be able to create and view patient records, assign or accept caregiving tasks, exchange status updates in real time, and track outcomes. All data must move securely between the web portal, the two mobile apps, and the database layer without duplication or loss. Technical expectations I am open to modern frameworks—React or Vue for the web front end, Swift/Objective-C and Kotlin/Java (or a cross-platform solution such as Flutter or React Native) for the mobile layer, and a scalable REST or GraphQL API behind it. Containerised deployment on AWS, Azure, or GCP with automated CI/CD, monitoring, and routine backups is essential so maintenance stays predictable. Key deliverables • Production-ready web application (health & social care focus...

Title: China Peptide Manufacturer Sourcer – Account Setup & Sample Order Project Description: I'm looking for someone with direct connections to legitimate peptide manufacturers in China to help me establish a direct ordering relationship. This is not a reseller or middleman project — I need access to actual manufacturers (not trading companies) that produce research-grade peptides. What I need from you: A verified list of legitimate peptide manufacturers in China with contact info, MOQs, and pricing — each backed by a verifiable listing, business license, or Made-in-China/Alibaba verified profile Confirmation that each manufacturer can provide third-party CoAs with every batch — if they can't, don't include them Account setup and registration wi...

...perspective * Rapidly iterate MVP (Minimum Viable Product) to support early user growth * Integrate third-party services (authentication, cloud services, push notifications, etc.) * Support app store submission (App Store / Android markets) for name reservation and deployment ⸻ Requirements Must-have (Core Skills) * Proficiency in at least one major programming language (JavaScript / Python / Java / Swift / Kotlin) * Experience with web or mini program development (e.g., WeChat Mini Program, H5) * Understanding of basic full-stack architecture (APIs, databases, user systems) * Ability to independently build features with a 0→1 mindset Nice-to-have (Any of these is a plus) * Experience in mobile app development (iOS / Android / Flutter / React Native) * Experience build...

I’m launching an e-commerce jewellery brand and need a sourcing expert who can quickly connect me with a reliable factory able to produce custom, waterproof necklaces at the lowest possible price point. My collection will include gold-plated, silver and stainless-steel pieces, so the manufacturer must already work with all three materials and guarantee long-lasting plating that will not tarnish with everyday wear. You will research, vet and present manufacturers—ideally in regions known for competitive unit costs—who can handle small initial MOQs yet scale up as the brand grows. I also need confirmation that they offer private-label packaging, assist with custom designs, and can ship globally. Deliverables (discrete and specific): • A shortlist of verified manufact...

...Play catalogue and need a flow of lightweight projects I can launch quickly. If you can deliver either a straightforward utility app or a casual, easy-to-pick-up game, I’m open to both paths. The key is that it must be fully store-ready: clean code, no policy violations, and attractive enough to earn downloads. Per finished project that meets the criteria below I can release ₹1,500 – ₹2,000, so feel free to pitch multiple ideas if you work fast. Deliverables • Signed release AAB or APK, ready for upload • Complete source code (Android Studio Java/Kotlin or Unity/C# are both fine) • Simple icon, screenshots, and a short store description • Confirmation that all assets are licence-free or originally created . Need to ...

...responsive UI as per Figma design Accurate calculation logic Proper error handling (divide by zero, invalid inputs, etc.) Important: I will provide the Figma design link after you request access Please review the design before finalizing your bid Requirements: Strong experience in Android development (Java/Kotlin) Experience building calculator or math-based apps (preferred) Ability to follow UI designs precisely Clean and optimized code Deliverables: Fully functional Android app Source code Proper testing to ensure accuracy Budget & Timeline: Please share your best price and estimated timeline after reviewing the Figma If you have built similar apps before, please share examples....

Job Title: Android Java Developer (Camera, Image Processing, USB Integration) About the Role We are building a real-time vision application for a USB-connected glasses device. This role focuses on low-latency camera processing, Android performance optimization, and SDK integration — not AR/Unity development. Key Responsibilities Develop an Android (Java) application for a USB-C connected UVC camera device Display live camera feed in fullscreen on external glasses display Implement real-time image processing features: Zoom (1x–10x) with clarity preservation Contrast enhancement Brightness control Edge detection (outline mode) Color filter modes Integrate OCR + Text-to-Speech (TTS) for real-time text reading Build a minimal, responsive on-screen UI for feature sw...

I want to line up reliable, export-ready manufacturers in India who can supply a full range of two-wheeler parts—engine components, suspension parts, brakes and clutches. The goal is to move quickly from short-listing factories to placing purchase orders, so I need someone already familiar with India’s automotive supply chain who can handle the leg-work on the ground. Your role covers locating qualified plants, securing quotations, confirming MOQs and lead times, arranging samples, and coordinating with shippers once orders are placed. If you have relationships with Tier-1 or Tier-2 factories, even better, but what matters most is proven experience sourcing mechanical or automotive components inside India. When you apply, highlight the sourcing projects you have managed, any ...

...the next several months. The immediate need is to design and implement RESTful APIs that handle user authentication and authorization, data retrieval/manipulation, and a handful of third-party integrations. Most of our existing micro-services are written in Python and Java, with a few high-performance components in Go, so the more comfortable you are jumping between those languages the better. You’ll be expected to: • Draft an endpoint specification we can review together. • Build the services in clean, idiomatic Python, Java, or Go (your choice per module), following REST best practices. • Wire in secure auth (JWT, OAuth2, or similar) and role-based access control. • Integrate external services where required, shielding the core logic behi...

Project Details 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,...

I already own the domain and have WordPress installed; now I want to turn it into a polished finance blog. All current posts live on Blogger and need to be migrated cleanly into WordPress, keeping existing URLs where possible to protect SEO. The visual direction is firmly professional and corporate—crisp typography, restrained colour palette, spacious layout. Once the theme is in place I’d like the site structured around clear categories (e.g., Investing, Budgeting, Tax, etc.) so readers can browse by topic. Core pages and elements I expect online and working: • Landing page that highlights the latest or featured articles and a clear value-proposition banner • “About Me” page with room for a headshot and short bio • Privacy Policy page (I ca...

I need a series of concise tutorial videos that clearly demonstrate my code in action. The goal is to help brand-new customers understand how each feature works, so the recordings should feel welcoming and straightforward even for someone seeing the product for the first time. Each video will focus on a single feature walkthrough—from opening the project, stepping through the relevant functions, to showing the finished result—highlighting practical use rather than deep theory. Good screen-capture quality, a clean voice-over, and on-screen callouts where helpful will make the explanations land. Please deliver the finished MP4s plus any editable source files you use (e.g., Premiere, Final Cut, Camtasia, or similar). If you include short intro/outro bumpers or ...

...want to drill into year-end processing, quarter and year-end reporting, complex tax scenarios, and the compliance steps that go with them. Beyond core topics, please weave in Payroll Control Center (PCC) best practices and advanced PCR design so I can build, test, and deploy my own rules confidently. Format Remote, live sessions suit me best. I learn fastest when we screen-share in the SAP GUI, EC Payroll, or PA30/PC00_MXX transactions and step through real examples. Between calls, short practical assignments or system walk-through videos will help me lock in the concepts. Deliverables • A customised learning plan outlining the order we will tackle each topic • Live hands-on sessions (recorded for later review) • Quick-reference guides or slide de...

Java Spring Boot Microservice — ITR Portal Login + AIS & 26AS Data Fetch Project Type: Backend Microservice Development Timeline: 4–6 Weeks (MVP) Date Posted: April 2026 Project Description Looking for an experienced Java developer to build a backend microservice that: Logs into the Income Tax e-Filing portal ( ) programmatically ( We have python based script we will share the script to login) Extracts the session token post-login Fetches AIS (Annual Information Statement) and Form 26AS from the TRACES portal ( ) Exposes the data via a REST API secured with JWT The service must handle OTP/MFA relay, auto token refresh, and be built to scale horizontally. Key Requirements Java 21 + Spring Boot 3.x Redis for encrypted session/token caching (TTL-managed)...

...callbacks. • Native bridge code where needed (Swift/Objective-C for iOS, Kotlin/Java for Android) so the same JavaScript API works on both platforms. • Clear documentation and a short demo screen that prints live weight values, connection status, and battery level if the scale exposes it. • Unit tests or a simple test script proving that the module reconnects automatically after signal loss and remains within ±200 ms latency for updates. Acceptance criteria will be a test run with an actual Acacia scale on my end: pairing, live readings, and no memory leaks after 30 minutes of continuous use. If you’ve shipped BLE features before, especially with scales or medical peripherals, I’d love to see a quick note on the protocols you touch...

Hi, need someone to create a python code to convert .XML file code (Datastage ) into sql query

...completed, current quiz scores, and weekly streaks; teachers or parents should be able to glance at the same data on a lightweight dashboard. Think Firebase or an equally quick cloud back-end for syncing, but I’m open to the stack you prefer as long as the data stays secure and the UI remains snappy on entry-level Android phones. Core deliverables (acceptance criteria): • Android APK + source (Kotlin or Java) compiled against the latest stable SDK • Audio-first lesson player with play / pause / seek and buffered streaming for low-bandwidth connections • Gesture-friendly interactive activities (drag-and-drop, tap to match) that tie directly to the audio content • Quiz engine supporting multiple-choice, fill-in-the-blank, and picture-based pr...

...based on the customer’s chosen game, platform and requested rank/boost size. Key deliverables • Windows executable (no installer is fine) that runs headless or with a light GUI • Secure Eldorado login flow, captcha bypass or manual token entry if required • Live polling or websocket listener that detects new requests the moment they appear • Rule engine pulling from my editable templates to generate the response and post it back through the site’s form • Log file or console window so I can see what the bot did, with timestamps and any errors • Easy way to update or expand my templates without touching code—JSON, CSV or an in-app editor is perfect I’m ready to start immediately and need a first working vers...

...doctor’s profile (photo, specialty, brief bio, available hours). • They pick an open slot and confirm the booking. • A push notification reminds them as the appointment approaches. That’s the heart of it. I am open to your preferred stack, yet an Android-native build in Kotlin or Java via Android Studio will likely keep things straightforward. If you already have experience wiring notifications through Firebase Cloud Messaging—or a comparable service—please mention it. Deliverables 1. Full Android source code with clear project structure. 2. Debuggable APK for testing and a signed release build. 3. Short hand-off guide covering how to update doctor data and modify notification timing. Acceptance criteria • Smooth...

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

I have the model, i need to create the ADRC then tune it using a new AI algorithm

...birth, ID numbers, etc.) has to be filled. Basic validation—presence checks and simple format rules—is sufficient; anything more can stay out of scope for now. • The end result should feel native: once the API call succeeds, the user sees the customer screen with every mapped field in place and can immediately continue the usual onboarding process. Deliverables I expect: 1. Integration code (Java / PL-SQL wrapper or preferred Flexcube extension) committed to a Git repository. 2. Mapping document that shows each JSON field and its corresponding Flexcube column. 3. Simple test script or Postman collection proving the end-to-end flow. 4. Brief deployment notes so our ops team can move it from UAT to production without a hitch. If you’ve wo...

...Angular, Node.js C, C++, Java Oracle, PostgreSQL, MongoDB React Native, Android Development Other relevant programming technologies Key Requirements: Ability to explain concepts in a simple, clear, and beginner-friendly manner Content should be suitable for young learners (8+ years) and absolute beginners Step-by-step teaching approach with real-world examples and practical demonstrations Use of visual aids, animations, or screen recordings to enhance understanding Well-structured modules (Basics → Intermediate → Advanced) Clear audio, professional presentation, and engaging teaching style Provide source code, exercises, and assignments (if applicable) Expected Deliverables: Complete video course per technology (divided into lessons/modules) Supporting m...

I need a non-electronic whistle-based auditory feedback tool for golf swing practice. The whistle should activate only when the golf club follows the proper inside-out pathway. Requirements: - A mechanism for the whistle to sound based on the swing path, ideally motion activated. - Durable and weather-resistant materials. - Lightweight and easy to attach to a golf club or practice setup. Ideal Skills and Experience: - Background in golf training aids development. - Mechanical engineering or design experience. - Familiarity with golf swing mechanics. The goal is to create an effective auditory cue to help improve my swing path.

...toward permitting and I need a seasoned architect who can look over the plans strictly from a building-code perspective. The core objective is to confirm that every drawing aligns with the latest IBC, ADA, fire-safety and energy-efficiency requirements that apply in our jurisdiction before we commit to final CDs. You will have online access to the full Revit model, PDF plan set and all product data sheets. I will walk you through the intended occupancy, egress strategy and MEP approach on a brief kickoff call, then turn the package over for your review. Deliverables I expect: • A written compliance report highlighting any conflicts, omissions or grey areas, referenced by sheet and code section • Mark-ups (PDF or Bluebeam) showing recommended revisions &bu...

The project is already done. It is multifactor voiceprint, password and finger print security system and stuff. I just have questions regarding it. You need to speak Arabic cuz some files are in Arabic

...Material-you interface, smooth performance on the latest Android releases, and Play-Store-ready compliance are all must-haves. For this first engagement I’m looking for a developer who can: • translate the concept into a solid feature roadmap, • build the Android app in either Kotlin or Java (your preference), • integrate the necessary YouTube OAuth flow and API endpoints, • deliver well-commented source code, an installable APK, and brief setup documentation. The work will be considered complete once the source compiles without errors, the main dashboard successfully pulls a user’s channel analytics, and the basic upload/schedule function runs on a recent Android 13 device. If you have experience with the YouTube Data API, ...

Expert test automation engineer is needed for creating automated test cases for couple of pages. Lot of code has already been written and some new code is to be added for couple of new pages. Selenium test cases should be written using .net and Xunit framework. The website is build using Angular. If you can convert few pages to data driven, then wonderful. You have to work through screen sharing(zoom or teams). I really need an expert, who can do it quickly. So novice automation folks - please excuse. Please write ".net Expert" in your proposal.

I need a developer who is...correct contentDescription attributes, accessibility labels and hints so that controls are spoken in a logical order. • Ensure state changes—errors, success messages, toggles—are conveyed via accessibility events without relying on visual cues alone. • Keep visual layout untouched; all work should sit cleanly in the XML and Kotlin/Java layers. • Provide a short video or emulator capture showing TalkBack reading through a typical form flow, plus the updated source files or a merge request. If you regularly validate with TalkBack, Accessibility Scanner or Espresso accessibility tests, this will be a straightforward engagement. Let me know the Android versions you usually test against and your estimated turnaround, ...

Project Title Design and Implementation of a Central Core for 6AM Mart Source Code using the Strangler Fig Approach (Migration to Microservices Architecture) 6AM Mart System Overview The 6AM Mart source code is a complete multi-vendor marketplace and delivery platform that provides multiple services simultaneously. The system includes the following main modules: * Food * Grocery * Pharmacy * Parcel * Shop In addition to these modules, the system includes operational components such as: * Order Management * Payment Processing * User Management * Vendor Management * Delivery Management The system is accessed through: * Admin Panel * Vendor Panel * Customer Application * Delivery Application Current Platform Status * Backend: Laravel * Web: React * Mobil...

I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...

I’m rolling out a new feature that touches both ends of our stack. On the backend we run Java 21 with Spring Boot micro-services, alongside a small Node.js/Python layer that exchanges events through Kafka. The frontend is split between an older Angular module and a newer React interface. The job is to design and code the complete feature, wiring it cleanly into every affected service and UI surface. You will: • Extend (or create) the relevant Spring Boot endpoints, making sure they publish and consume the right Kafka topics. • Update the Angular dashboard and the React SPA so the user experience is seamless across both frameworks. • Keep code idiomatic, unit-tested, and pushed to our Git repo via pull requests. Acceptance criteria • A...

I am putting together a full-featured wellness application for Android that mirrors the experience of HealthifyMe, but focused on my own brand...Studio project • Fully tested APK with calorie, exercise, and diet modules working end-to-end • Social layer (add friends, chat, progress feed) with live update capability • Scalable backend with documented API endpoints and basic admin access • Source code, build instructions, and a short hand-off walkthrough Acceptance criteria: each listed module must store data locally when offline, sync seamlessly when a connection returns, and maintain <1 s latency on messaging under typical loads. If this aligns with your expertise in Kotlin/Java, real-time databases, and fitness-oriented UX, I’m ...

...Frequency Drive is running on existing code that now throws unexpected errors during operation. I need an experienced developer to dive into the current project, isolate the bugs, and deliver a clean, reliable version of the program that restores full functionality. You will have remote access to the controller and the full source package as soon as we agree on an NDA. Once inside, I expect you to: • trace and document the root cause of the faults, • correct the offending sections of code, and • verify the fix on-site or through simulated load tests so the drive performs to spec across all speed ranges. The job is complete when the code compiles without warnings, the VFD responds accurately to every command sequence, and I receive the ...

I’m creating an online store for cosmetic products and want the codebase to feel as professional as anything you would ship to production. The backend must be written in Java with Spring Boot, exposed through well-structured REST endpoints, and persist data in MySQL. On the client side I only need a clean, responsive interface built with plain HTML, CSS and vanilla JavaScript—no heavy frameworks—so that the focus stays on clear architecture rather than flashy UI libraries. Core features I expect: • Role-based authentication for Admin and Customer accounts, supporting registration, login and logout with secure password storage. • Admin dashboards to add, edit and retire products, plus view basic order information. • Customer-facing catalogue with...

I’m expanding several engineering teams for top-tier MNCs and rapidly scaling tech start-ups and need skilled people who can jump in right away. The first seats I must fill are: • Software Developers who are fluent in React, Node, and/or Java. If you can architect front-end components in React, build robust APIs with Node, or craft enterprise-grade services in Java, you’re already on my shortlist. • Data Analysts & Data Engineers able to turn raw data into clean, actionable insights. Solid SQL skills are essential, and if you have experience with Python, Spark, or comparable tooling, that will be an added advantage. • UI/UX Designers who can translate complex product ideas into polished, user-centric interfaces, balancing aesthetics with ac...

I need a graphic designer to improve 2 existing images and make them look more professional and aligned with our company branding and colors.

...player attacks another building there will now be an air effect to show the force of the swing and more pieces of the building will disappear. Then there are arrows to bring the player to attack 5 zombies each zombie drops 1-3 orbs. --Rank Up-- Cost 300 strength (the amount of strength required goes up by x2.5 for each rebirth and every 3 rebirths next will go up by x2 then then repeats back to x2.5 --sound effects-- --Buildings-- -the players attacks with their sword to break the buildings which they get orbs from breaking --Zombies-- The zombies should spawn randomly around the map with their strength at random but overall the further away they spawn from the spawn the stronger they get. For example near spawn they are at the rank Swordsman to rank Samurai. (they are...

...endpoints and make the tablet experience fully in step with the web version. Because this is a contract role I need someone who already has at least five years of hands-on APK work under Linux—comfortable with Android Studio, the Android SDK, Kotlin/Java, Git, and typical CI pipelines. You should be able to stand up a clean architecture, guide me on best practices for tablet UI/UX, and hand over production-ready code. Deliverables I’ll sign off on: • Compiled release-grade APK ready for Play Console internal testing • Complete, clean source code in a Git repo with build instructions that work on Ubuntu 22.04 • Brief integration guide covering API endpoints used, authentication flow, and push notification setup If this mat...

...and grades/performance, all pulled from our current REST endpoints. Data caching, photo upload, and simple edit forms already exist in Java and must be replicated in Dart without losing validation rules. 3. School Contacts & Calendar – For this first sprint I only need the staff directory portion live. Search, role filtering, click-to-call, and email links should work out of the box. The calendar view may stay read-only for now; it simply has to render the same event feed we already expose in JSON. You have to use same Android source, API codes (Extract), and the original UI assets. Keep the file and folder structure Flutter-standard, comment the code clearly, and ensure it builds for both Android and iOS (latest stable channel). Let’s target c...

Project: Hybrid Multi-Source Energy Prototype (Micro Build – Ongoing) I’m developing a hybrid energy system designed to combine multiple environmental inputs, including: - Solar - Wind - Hydro (if applicable) - Thermal energy - Potential energy/force absorption (future integration) The system is built around a 48V DC bus with LiFePO4 storage and DC/AC outputs. Phase 1 & 2 designs (schematics + BOM) are already completed. I’m looking for someone to help refine and build a working prototype. --- Budget / Structure - Tight budget — open to a micro prototype (V1) approach - Start with a $100 milestone (design review + initial planning) - Continue with $100 per milestone, paid based on completed deliverables - Please include: - Your total ...

...developer who can help me shape the idea as well as code it. Here’s what I need from you: • Discovery & wireframing sessions to refine the core feature set • Clean, maintainable Kotlin or Java code that follows Android best practices • A modern UI built with Material Design components • Integration of essential services such as authentication, push notifications, analytics, and in-app purchases when relevant • End-to-end testing, including unit tests and UI tests, with clear test reports • Assistance with Play Store listing, signing, and rollout Acceptance criteria: 1. The app installs and runs smoothly on current Android versions (API 24+). 2. All agreed-upon features are fully implemented and documented. 3...

...another category will be decided once we refine the concept together. Key functionality is equally flexible. Depending on the agreed use-case, the build may include fundamentals such as messaging, user profiles, a news feed, or any other feature set that fits the solution. Code should be written in Kotlin or modern Java within Android Studio, follow current Material Design guidelines, and be structured for easy maintenance and future feature expansion. Deliverables • Fully-tested APK and complete source code • Brief technical documentation outlining architecture, key libraries, and build steps • One walkthrough session to hand over the project and address questions Acceptance criteria will be finalised once the scope is locke...

...easier. Here is what I already know I need: in-app messaging, seamless photo sharing, and a robust friend-connection system. Because we’re targeting Android only, you’re free to lean into Kotlin or Java and make the most of Google-first services—Firebase for real-time chat and push, Play Games Services for leaderboards or achievements, and any modern Android Jetpack libraries that speed development while keeping the codebase clean. I’ll handle concept art and copy; you’ll take charge of architecture, clean UI/UX, feature implementation, and release-ready optimisation. Reusable, well-documented code is important, as I want the flexibility to add more mini-games or utilities later. Deliverables • Complete Android Studio project with cl...

...check real-time volatility to ensure the trade fits predefined risk limits. The system must: • Authenticate safely with each broker using encrypted key storage and automatic rotation. • Offer a toggle between paper trading, live trading, and historical back-testing, sharing one code path so results stay consistent. • Log every request, response, fill, error, and balance change to PostgreSQL, then surface summaries on a lightweight dashboard; alerts go out instantly via Telegram and email. • Provide an admin API for strategy configuration, portfolio caps, and emergency kill-switches. • Support three strategy styles out of the box—day trading, swing trading, and scalping—while leaving hooks for future strategies. Tec...

I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...

I maintain a Java-based backend that exposes a small REST interface for sensor and other device data. A few legacy issues are breaking current GET and POST calls and I also need several new endpoints added. Each confirmed bug you resolve is paid at ₹1,200, and the same rate applies if you prefer to log time hourly instead. Scope • Diagnose and fix existing errors in the REST layer, services, or related model classes. • Add clean, well-documented GET and POST endpoints so devices can reliably push data and consumers can pull it back. • Ensure responses follow our current JSON schema and return the correct HTTP status codes. • Provide concise unit or integration tests that demonstrate each fix or new endpoint working end-to-end. Acceptance criteria A pu...