The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Software Engineering is an ever-growing and dynamic field, offering the potential for solutions to a client’s problems. It is a term used to identify and describe the development of software by a team of experienced engineers, designers and developers. As such, software engineering provides reliable solutions to software related problems that require technical analysis and understanding.
Software engineers are proficient problem solvers who work to deliver effective solutions ranging from small projects to major systems. They create and maintain complex, large-scale software systems using different technologies and programming languages. Their expertise can turn ideas into reality, allowing them to provide their clients with innovative applications and products.
Here's some projects that our expert Software Engineer made real:
Software engineering is an important feature of the 21st century, providing organizations with the solutions they need to thrive. If you’re looking for reliable software solutions that can take your project to the next level, consider hiring a software engineer on Freelancer.com to tailor your project’s requirements to your needs. Hire now and get started on turning your ideas into reality.
Da 27,883 valutazioni, i clienti danno una valutazione ai nostri Software Engineers di 4.84 stelle su 5Software Engineering is an ever-growing and dynamic field, offering the potential for solutions to a client’s problems. It is a term used to identify and describe the development of software by a team of experienced engineers, designers and developers. As such, software engineering provides reliable solutions to software related problems that require technical analysis and understanding.
Software engineers are proficient problem solvers who work to deliver effective solutions ranging from small projects to major systems. They create and maintain complex, large-scale software systems using different technologies and programming languages. Their expertise can turn ideas into reality, allowing them to provide their clients with innovative applications and products.
Here's some projects that our expert Software Engineer made real:
Software engineering is an important feature of the 21st century, providing organizations with the solutions they need to thrive. If you’re looking for reliable software solutions that can take your project to the next level, consider hiring a software engineer on Freelancer.com to tailor your project’s requirements to your needs. Hire now and get started on turning your ideas into reality.
Da 27,883 valutazioni, i clienti danno una valutazione ai nostri Software Engineers di 4.84 stelle su 5I have buit a web-based social platform whose primary metric is user onboarding and engagement, and I want one developer to own it end-to-end. Every day we’ll spend about an hour on a video call to review the agenda, adjust milestones, and make sure we are unblocking each other quickly. The stack is firmly rooted in Microsoft Azure. You’ll shape the CI/CD flow in Azure DevOps, keep the code clean and transparent on GitHub, and lean on Foundry and Copilot Studio to accelerate repetitive work. The first release must run smoothly in the Azure Web App environment, with performance and security best practices baked in from the start. Core experience for the user: • Real-time chat that feels instantaneous and reliable • Interactive posts that accept text, media, and rea...
I have a stable FreeRTOS-based firmware that currently compiles only under my portable Arduino IDE 1.8.13 setup for the SAMD51 MCU. I now want the project to build and run cleanly in the latest Arduino IDE without carrying along any of those version-specific hacks, board package pin-tweaks, or legacy library work-arounds. Once the codebase is modernised, the next step is to extend it with new sensors. You will receive the present firmware, board-support files, and the partial sensor drivers at project start.
PROJECT OVERVIEW We need a freelance engineer to help design and build core components of a prediction markets platform. The focus is correctness, consistency under load, and clean data models that support both UI and analytics. SCOPE OF WORK / RESPONSIBILITIES 1. Prediction market mechanics - YES/NO outcome tokens and implied probability mapping (price ≈ probability) - Liquidity/spreads via order book and/or AMM-style curve - Market lifecycle: open → trading → resolution → settlement - Resolution/oracle inputs, dispute windows, final payout logic 2. Backend + API development - Market discovery/browsing endpoints - Real-time pricing/market updates (WebSockets and/or streaming) - Order placement and cancellation - Idempotent order/trade submission (idempotency keys, re...
I need an experienced software engineer who can step into scheduled Zoom / Google Meet calls and treat them exactly like real technical interviews. During each 45- to 90-minute session you will share your screen, think out loud, and solve data-structure, algorithm, and the occasional system-design problem in real time. To make sure the sessions feel authentic you should already be comfortable white-boarding (or using an online pad) in at least one major language—Java, Python, JavaScript, C++, or a similar modern stack is fine—and be able to defend your approach under follow-up questions. Clear, confident English is important so the interviewers can probe your reasoning without friction. When you reply, tell me: • the language(s) you want to use, • a brief note...
React/TypeScript Developer with Advanced JointJS Expertise We are developing a visual tool for designing cloud infrastructure. The application uses JointJS for its core diagramming engine and React for the user interface. We are looking for a specialist to help us implement advanced graph behaviors and custom shape logic. We are building features that require dynamic switching of element representations and complex nesting logic (containers within containers). The ideal candidate has deep experience extending JointJS beyond basic drag-and-drop, creating custom interactive elements, and managing complex graph state. Key Responsibilities: - Advanced JointJS Implementation: Develop custom shapes and behaviors that go beyond standard library features. - Complex State Management: Handle stat...
Project Description Highlights The Mission: We are building "QuantumShield," a high-performance, user-friendly desktop application that protects sensitive SMB data against "Harvest Now, Decrypt Later" threats using standardized Post-Quantum Cryptography. Key Technical Focus: This is not a standard encryption project. We require implementation of ML-KEM (Kyber) and ML-DSA (Dilithium) within a Hybrid Cryptographic Scheme (PQC + Classical AES-256). The Deliverable: A functional MVP for Windows/macOS featuring a "One-Click Shield" drag-and-drop interface and a "Quantum Health Dashboard" that monitors file vulnerability status. Required Tech Stack: High-performance systems programming (e.g., Rust, C++, or Go) with direct experience usi...
I’m assembling a rotating panel of seasoned Java professionals to help me run technical interviews for upcoming hiring rounds. You should have a senior-level command of Core Java, the Spring Framework, and full-scale Java EE so you can probe candidates at depth and spot both strengths and red flags quickly. Every session will be a blend of structured technical questions, live coding challenges, and an open system-design discussion. I already have a question bank and an online coding environment in place, but I count on you to adapt on the fly, dig deeper when useful, and suggest new problems if a gap appears. Deliverables for each candidate you assess: • 60-minute video interview conducted on my platform • Real-time scoring against the rubric I provide • A concis...
I have a production-level bugs who can connect right now in TeamViewer and help in fixing production issue looking is super expert in ai and aws python
I still have the RPN listing I wrote years ago for Free42, but when I re-key it into both my physical HP-42S and the Free42 app on my iPhone it simply refuses to give the expected results—no error messages, just wrong answers. I need a fresh pair of eyes to step through the code, spot whatever subtle logic or state issues have crept in, and hand back a version that runs flawlessly on both the original calculator and the modern emulator. You’ll receive my exact program text plus a short note describing the correct outputs I used to get. Please trace the execution, locate the trouble spots, and supply: • A corrected, fully tested program listing ready for direct key-entry or .raw import into Free42 / HP-42S • A brief explanation of what was wrong and why your fix wo...
I’m facing a persistent issue that’s stalling my project and need an experienced professional to identify and fix it. You’ll start by reviewing the information I provide—this may include code snippets, design files, or content drafts—then: • Diagnose the root cause quickly. • Suggest one or more practical solutions. • Implement the agreed-upon fix. • Validate that everything now works as intended. I’ll share all relevant assets once we begin and welcome clarifying questions along the way. Please document what you’ve done so I can maintain the solution after hand-off.
I will supply the existing PyQt5 .ui file for Dimension Box, I need it completely re-skinned and reorganised. The current visual style elements already feel familiar to the operators, so please build on those, but create a far stronger visual hierarchy that draws the eye first to the data-display areas. The finished interface must fluidly scale between our 7-inch factory touchscreen and a 21-inch desktop monitor without breaking layout. Large, touch-friendly controls, flat styling with soft shadows, rounded corners, high-contrast palettes and generous typography are essential for visibility under workshop lighting. Wherever practical, replace text with clear icons and group buttons strictly by workflow priority to keep the screen uncluttered. Deliverables • Updated PyQt5 .ui (or...
I am building out the core of a new product on the Solana blockchain and need a seasoned engineer to write, test, and deploy custom smart contracts. Your job is to translate a set of functional requirements into secure, efficient on-chain programs, then walk me through deployment and version control so I can maintain the codebase moving forward. The role is 100 % Solana focused, so I expect fluency with Rust, Anchor, the Solana CLI, and standard auditing tools. If you also enjoy crafting full dApps or connecting on-chain logic to existing back-end services, that will be useful down the line, but for this phase the deliverable is solely the smart contract layer. Deliverables – Well-documented Rust/Anchor smart contracts that satisfy the functional spec – Local and test-net d...
I need a concise Python 3 script that will run on a Raspberry Pi 5 and do the following: • Watch a single GPIO input line for the HIGH digital signal coming from my Sony camera’s built-in AI output. . The Sony camera will be pre-loaded with images of the target - in this case a plant which is detected in the target bounding box in the camera field of view. . When the target plant is encountered in bounding box of the camera field of view, the corresponding relay will activate a spray nozzle for the time the target remains in the bounding box. •The point above is achieved as soon as that digital signal is detected, drive a separate GPIO output that energises a small 5 V solenoid for as long as the target plant remains in the bounding box of the camera, then automatical...
I’m putting together a lightweight yet secure meta-editing environment focused on code. The core need is a true code editor—nothing WYSIWYG or plain-text—able to read and write encrypted project files so that source remains protected end-to-end. Here is the essence of what I’m after: • A desktop or web-based editor purpose-built for coding tasks. • Built-in encryption/decryption of files or project folders using modern, open algorithms (AES-256 or similarly strong). • Smooth, familiar coding workflow: open an encrypted file, make edits, save, and the file is automatically re-encrypted without exposing plaintext on disk. • Clean, well-documented codebase so I can extend the tool later. Technology stack is open for discussion; feel free...
I'm seeking an experienced developer to build a desktop-based fleet management tool for heavy equipment. Key features required: - Real-time tracking of equipment - Maintenance scheduling - Usage reporting Ideal Skills and Experience: - Strong background in desktop application development - Experience integrating API feeds from web and telematics - Proven track record in building similar management tools Please provide: - Detailed project proposals - Examples of past work and relevant experience
It is (‘program’) for game want to modify the tool.
I’m looking for an experienced project manager who can take charge of a software–development effort focused on improving an existing product. The work spans three intertwined objectives: refreshing the user interface and overall visual design, driving measurable performance gains, and rolling out selected new features without disrupting current users. You’ll be my point person for planning and tracking the full lifecycle: clarifying requirements with product and UX, translating them into sprint-ready tickets, coordinating developers and QA, and keeping stakeholders informed through concise status reports and demos. I already have an in-house engineering team in place—what we need is your structure, visibility, and risk management to keep the enhancements moving smo...
I am looking for a motivated individual who loves both technology and communication. The ideal candidate is curious about programming, enjoys discussing technical concepts, and can clearly explain ideas in English. This role is perfect for someone who wants to grow their development skills while actively participating in project discussions, interviews, and tech conversations. You will collaborate with a small team, contribute to coding tasks, and help guide discussions around software solutions, project architecture, and technology choices. Responsibilities: - Collaborate with the team on software development tasks - Participate in technical discussions, project planning, and knowledge sharing - Explain programming concepts, solutions, and project progress clearly in English - Conduct i...
I maintain a fork of LibreTaxi (Telegram bot – GitHub repo here: ) and now need a new core feature: automatic fare calculation. Here is what I’m after: If you’ve built Telegram bots before or have touched LibreTaxi, that’s an advantage, but solid JavaScript/TypeScript skills and clear commit history are what really matter.
I need developer for hotmail automation like setup recovery, unlock with sms use API with external service, captcha solver API as well
Job Title: macOS App Data Extraction Specialist (Offline QBank – Reverse Engineering Required) Job Description: We are seeking an experienced freelancer with expertise in macOS application data analysis and reverse engineering to help extract offline data from a medical QBank application installed on macOS. The application allows users to download question banks for offline use, and the required data already exists locally within the app’s container directory on the Mac. However, the storage format appears to use a browser-style database system (e.g., IndexedDB/LevelDB) rather than a traditional SQLite database. Your task will be to analyze the application’s local storage structure and extract the stored QBank content into a clean, structured dataset. Scope of Work: Analy...
Ms teams is already integrated with servicenow. It is sending msg to teams when ever incident resolved. But its working for 1,2 users only. Need to fix tht it will be sent for all.
I need a Python developer to create a Windows-based automation script that helps monitor shift availability on an online hiring portal. The tool should check the schedule page at regular intervals and assist with quickly selecting shifts that match predefined preferences. The goal is to reduce the need for manual page refreshing and speed up the shift selection process. Key requirements: • Developed in Python and compatible with Windows • Ability to monitor the hiring portal and detect newly available shifts • Smart filtering based on preferences such as day of week, time window, and shift duration • Automatic navigation of the schedule interface to help select matching shifts • Auto-login capability after the initial setup using a saved browser session ...
I need a seasoned professional who can step in as my proxy and run live, video-based technical interviews for a Full Stack Developer vacancy. You must be fully comfortable holding the entire conversation in English, probing candidates on architecture decisions, coding fluency, problem-solving approaches, and soft-skill fit, all while reflecting the expectations and hiring style common in U.S. teams. Because most interviews will be scheduled during U.S. business hours, it helps if you are already in – or can reliably align with – those time zones. I will share the job description, sample questions, and a scoring rubric; you will refine the flow, run each 45- to 60-minute session, and record concise notes that highlight strengths, gaps, and a clear hire/no-hire recommendation. ...
I have a C# application that is now locked behind WinLicense + Themida 3.x. My only goal is to regain access to the project so I can open it in Visual Studio and continue working on it. I do not need a ready-to-run executable; what I’m after is clean, compilable source code. Once unpacked, I want to see: • the full user-interface layout and resources, • the core functionality and algorithms, and • all data-processing and storage routines. A straightforward Visual Studio solution (.sln, .csproj, assets, references) with clear build instructions will be considered a complete delivery. If any sections remain obfuscated, please document the reasons and suggest next steps.
IMPORTANT UPDATE – READ CAREFULLY This is NOT a design contest. This project was mistakenly posted as a contest. It is actually a highly technical Android development task. Only serious Android developers with experience in LSPosed, Zygisk, Magisk modules and Camera2 internals should participate. Generic diagrams, flowcharts, AI-generated explanations or conceptual images will NOT be considered valid submissions. Technical Objective Device: Pixel 8a (akita) ROM: EvolutionX 15 (Android 15) Root: Magisk + Zygisk + LSPosed Goal: Force a USB UVC external camera to behave as the ONLY usable system camera. Requirements: Any app requesting a camera must open ONLY the external USB UVC camera. Internal physical cameras must be unusable or invisible. No ROM building. No vendor mod...
I am looking for an outsourcing developer who is based in LATAM and India You should be able to work in the US time zone
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
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