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.
Na podstawie 34,885 opinii klienci oceniają nas na Software Engineers 4.9 na 5 gwiazdek.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.
Na podstawie 34,885 opinii klienci oceniają nas na Software Engineers 4.9 na 5 gwiazdek.I need a freelancer software developer based in Kolkata. I only want the person to be from Kolkata who will do the project. My problem is I have to transfer my file and file from Hugging Face to a standalone computer in Kolkata. That standalone computer is a laptop. I want to transfer the Hugging Face app to a standalone computer with two options. One is running locally on internet and second option is running locally without internet. In the Hugging Face, I've been using OpenAI and Groq keys in the secrets folder, API , in the standalone computer, I want in the internet connection option, I want the secrets to be in a TOML folder and in the without internet connection option, I want something which will work without needing Groq or OpenAI. This is just a one day work, one or two da...
We're a technology services company that's been quietly building something pretty exciting over the past few years. We work with US-based enterprises across fintech, banking, healthcare, and software sectors - think clients in the United States and Australia - and we've successfully delivered projects that our clients keep coming back for. Our team is distributed across Latin America and we're now at a stage where we're expanding our client-facing operations, which is where this opportunity comes in. We're looking for someone who can represent our team in technical conversations and interviews with US clients. This isn't a traditional freelance gig - for the right person this is a long-term partnership with serious earning potential. We're talking $...
Project Overview: We are looking for an elite Full-Stack / Mobile Developer to build AFRIMATI-COMMERCE, an innovative B2B transactional marketplace connecting agricultural producers and livestock farmers directly with bulk buyers, processors, and exporters. Our mission is to build a seamless human and economic synergy (osmose) that cuts out destructive middlemen and empowers rural producers. The Deliverable: • 2 Native Mobile Applications (Android & iOS) built with a unified framework (React Native or Flutter). • A robust backend API powered by NestJS (Node.js) with a PostgreSQL database. Key Functional Scope: • Wholesale B2B Only: Designed strictly for bulk quantities (metric tons, 100kg bags, livestock herds). No retail. • Secure Escrow System: Critical integrat...
C++ Systems Engineer - High-Performance Data Processing | $3000 Fixed I'm looking for an experienced C++ engineer to work on a systems-level project involving high-performance data processing and an existing C++ codebase. Budget: $3000 fixed price Language: C++17/20+ Environment: Linux / Git ## Project The project involves extending and improving an existing C++ application according to a detailed technical specification. The work will involve understanding the existing architecture, implementing new functionality, and ensuring that the changes integrate cleanly with the current codebase. The project is intended for an engineer who is comfortable working below the application level and cares about performance, correctness, maintainability, and clean design. ## Requirements Str...
I’m putting together a “flash-style” application that lets adult learners explore core cryptocurrency concepts in a classroom setting. The aim is to keep everything simple enough for first-time students yet authentic enough that they see real-world mechanics in action. Here’s what I need the build to cover: • Data encryption built in from the ground up so students can encrypt and decrypt sample strings and immediately view the results. • Basic blockchain integration that spins up a local test chain, writes a few dummy transactions, and then visualises block creation. • A small, self-contained wallet module that can generate keys, sign test transactions, and show balances—all within the local sandbox, no live coins involved. The tool only ...
Zephyr and LVGL developer: build 5 navigation models for a smartwatch OS We build MintWatch, a 454x454 round AMOLED watch running our own OS. The firmware is Zephyr with LVGL, written in C, and it builds today for native_sim on a desktop as well as for the watch silicon, so you can do this entire job on your own machine with no hardware. We need five new operating system models added to the existing set. What a model is here A model is not a theme. Our tree already separates the two, and this job is only the first half: Home: what is on the screen when the wearer is doing nothing. A watchface, an app grid, a conversation, a scrolling list of text. These are different devices, not different skins. Navigation: what every gesture does from home. Peers on a line, sheets over a home, cards in a...
I’m working on a personal project that leans heavily on SymPy, and I’ve hit a limitation with the way the library handles division when both operands are integers. What I need is a clean modification to SymPy’s source so I can keep every operation strictly in the integer domain—avoiding automatic promotion to Rational objects—while preserving all of SymPy’s usual behaviour for non-integer or mixed-type inputs. Here’s what the job entails: • Identify the precise spot in SymPy’s core (likely sympy/core/ or related) where integer division is resolved. • Implement a path that returns the floor-divided Integer result (e.g. 7/3 → 2) or, if you prefer, expose a switch/flag or subclass that activates this behaviour only when reques...
I'm looking for a skilled developer to write C++ code for an ESP32-based drone equipped with an MPU6050 sensor. The code should handle both flight control and sensor data processing, using Wi-Fi as the communication protocol. Key Requirements: - C++ programming expertise - Experience with ESP32 and MPU6050 - Knowledge in drone flight control algorithms - Proficiency in sensor data processing - Wi-Fi communication protocol implementation Ideal Skills: - Background in robotics or drone development - Familiarity with relevant libraries and frameworks - Strong problem-solving skills - Ability to provide well-documented and maintainable code - It also has flysky transmitter and ibus receiver Please share any relevant experience in your bids.
# Arquitectura y Diseño de Software: OPEN RIP Software para (UV & DTF) Este documento contiene la especificación técnica, el flujo de datos y la arquitectura de componentes para el desarrollo de un software RIP personalizado con soporte multihilo, procesamiento de color (CMYK+W+V) y selección dinámica de controladores de impresión. --- ## 1. Diagrama General de Arquitectura (Componentes) ``` [ Interfaz de Usuario (UI) ] │ ▼ [ Motor de Gestión de Trabajos (Job Manager) ] ──(Cola de Impresión) │ ▼ [ Motor RIP Core ] ──(Gestión de Color ICC) ──(Generación de Canales W / V) │ ▼ [ Capa de Abstracción de Drivers (HAL) ] ├──► [ Driver Impresora 1 (Ej....
I'm looking for an expert to create a comprehensive technical training program in advanced software development, targeting seasoned professionals. Key Requirements: - In-depth curriculum covering advanced software development concepts and practices. - Focus on real-world applications and problem-solving. - Include latest industry trends and technologies. Ideal Skills and Experience: - Proven expertise in software development. - Experience in designing training or educational programs. - Strong knowledge of current industry trends. - Excellent communication and presentation skills. Please provide samples of previous work.
I’m commissioning a brand-new desktop application that must install and run natively on both Windows and Linux. My priority is a unified, maintainable codebase with a polished user interface that feels completely at home on each platform. You’ll start by recommending the most suitable toolkit or framework—Qt, .NET Core, Electron, GTK, or another actively maintained option—explaining why it balances performance, distribution ease, and long-term support. Once we agree on the stack, we’ll move through architecture design, an MVP with the core feature set, a refined production build, and finally a full hand-over that includes source code, build scripts, installation packages (an .exe installer for Windows and distro-friendly packages or AppImage for Linux), plu...
More details: Which functionalities are crucial for your EHR/EMR/HMS product? Patient & doctor management, Billing / hospital workflows, API/integration capabilities Do you need support for HL7/FHIR standards? Yes Which type of customization do you need for the EHR/EMR/HMS product? This question was skipped by the user We are looking for a developer or software company with an existing, functional EHR/EMR/HMS product that is ready to use and can be licensed, customized, white-labelled, or integrated with another healthcare technology are NOT looking for someone to build an EHR from , the platform should include:* Patient & doctor management* Appointments & clinical records* Prescriptions and medical history* Billing / hospital workflows* APIs for third-party integrations* HL7...
READ & UNDERSTAND BEFORE SENDING ME A MESSAGE: I am looking for a software developer that can develop a platform that can convert unused airtime back into cash. A lot of people usually have a lot of airtime which expires after a month's cycle. I want the unused to be converted into cash which they can use. I had done it before therefore i know its possible
I have an school management app that was built in FlutterFlow and it’s already live, but it has outgrown its original architecture. Core features work, yet performance, maintainability, and polish all need serious attention. I’m looking for someone who knows FlutterFlow inside-out and can step in, review the current build, then refactor, optimise, and expand it so the product feels as solid as anything native.
Looking for Help With Senior Software Engineer Job Interviews I’m looking for someone who has some experience with software engineering job interviews in the US market and can help me prepare for Senior Software Engineer interviews. You do not need to be a professional interviewer or have many years of experience. I mainly need someone who is familiar with the interview process and can practice with me. What I Need Help With Practice common software engineering interview questions Do mock interviews with me Practice behavioral and technical questions Help me improve how I explain my experience and projects Give feedback on my answers Practice system design or coding questions when needed Help me become more comfortable and confident during interviews What I’m Looking For Som...
I need a straightforward but reliable inventory program that installs on Windows workstations and keeps my stock levels accurate the moment anything moves. Real-time quantity updates and fast barcode capture are non-negotiable, because the warehouse team relies on handheld scanners for every transaction. The new system must also “talk” to our existing ERP through an API, database link, or another proven method so item masters, purchase receipts, and sales shipments stay perfectly in sync without double entry. If you have done ERP bridges before, please highlight that experience. What I expect from you: • A Windows-based application (or well-packaged web app that runs smoothly on Windows) with live inventory tracking and built-in barcode scanning workflow. • Gu...
I’m extending an existing Spring Boot web application and need a solid Java backend developer to craft a brand-new REST feature. The focus is the API layer: creating endpoints that let clients both fetch and submit data. All logic must respect clean Core-Java OOP principles, integrate smoothly with a MySQL database, and expose predictable JSON responses over HTTP. Here’s what the work involves: • Design and implement the new endpoints in Spring Boot, wiring them through controller, service, and repository layers. • Map the required tables or queries in MyBatis/JPA (whichever you prefer) so data retrieval and insertion remain performant and secure. • Write unit and integration tests, mocking dependencies where appropriate, and run end-to-end tests with Postm...
I need a skilled software engineer to develop a Windows-based desktop application for AADHAAR processing. Key Requirements: - Windows compatibility - Secure data handling - User-friendly interface Ideal Skills & Experience: - Experience in desktop app development - Proficiency in Windows OS - Knowledge of data security protocols
I have the concept, branding, and wire-frames for an online “rental boyfriend” service and now need the product built simultaneously for web and mobile. The very first release focuses on one thing above all else: a rock-solid booking system that updates availability in real time, no matter whether the slot is taken from the website or the app. Users will browse listed companions, view a live calendar, reserve a timeslot, pay, and receive instant confirmation. That calendar must lock the slot the moment payment clears and reflect the change on every device within seconds to eliminate double-bookings. Profile pages or in-app chat can wait for a later phase; the streamlined booking flow is the only must-have feature for this build. You’ll work with the assets I provide&mda...
Design, Development and Implementation of the Adaptability Plus Digital Assessment Platform Project Overview We are seeking an experienced Software-as-a-Service (SaaS) platform / web development agency to design, develop and implement a secure, scalable digital platform for the commercial delivery of a suite of evidence-based adaptability, leadership and psychological flexibility assessments. The platform will provide users with the ability to purchase assessments online, complete questionnaires, receive automated personalised reports, access tailored development exercises and monitor their development over time. The initial phase of the project will establish the core digital ecosystem capable of supporting future expansion into organisational, educational and international markets. The...
We need a single Manifest V3 browser extension that installs cleanly on Chrome and Microsoft Edge. The extension will detect duplicate candidates while reviewing or creating a candidate in Workday or SAP Fieldglass by comparing the candidate’s email address and phone number against existing records. Core Features Auto-scan: Automatically check the candidate when the page loads. Manual scan: Toolbar button to trigger a duplicate check on demand. Matching: Exact match on email OR phone number. Display a clear visual alert showing which field matched. Provide a deep link to the existing candidate profile, where available. Lightweight UI with a simple banner/icon badge and easy future branding. Technical Requirements Chrome + Microsoft Edge compatible Manifest V3 JavaScript or TypeScr...
Senior AI-Native Full-Stack Developer — Complete Existing React Native / TypeScript Product to V1.5 We are looking for one exceptional hands-on senior full-stack developer, or a very small two-person team only if genuinely necessary, to complete and production-harden an existing AI-assisted consumer software product. This is not a greenfield project. A substantial React Native / Expo / TypeScript / serverless codebase already exists, together with a detailed V1.5 build specification, UX direction, acceptance criteria and prepared product knowledge. We will provide the detailed product specification, user journeys, research, knowledge/brain material, content, example cases and rapid product decisions. We will do the non-engineering heavy lifting. Your role is to validate the existi...
The application is already live on Vite/React with Supabase handling Auth, Database, Storage (with RLS), and the repo managed on GitHub. What I need now is a solid clean-up and hardening phase, not a redesign. Here is what I expect once you jump in: • Run a complete code review and resolve every bug you uncover in authentication, database interactions, the user interface, Supabase storage handling, role-based access rules, security/RLS policies, and the deployment pipeline itself. • Write and execute end-to-end tests so we can prove these fixes hold under real-world conditions. • Keep the existing design and feature set exactly as they are; only stability and reliability should change. You will work directly in the GitHub repo, using pull requests so I can follow ea...
I'm looking for an experienced software developer to create a desktop application for Windows. The primary function of this application will be user management. Key Requirements: - The application should be designed specifically for the Windows operating system. - It should efficiently handle various user management tasks. Ideal Skills and Experience: - Proven experience in developing desktop applications for Windows. - Strong understanding of user management systems. - Proficient in programming languages suited for Windows application development (e.g., C#, .NET). - Familiarity with UI/UX design principles for desktop applications. - Ability to deliver clean, maintainable code and comprehensive documentation. Please provide examples of similar work done and your approach to this p...
I have a working Rust codebase that spins up a datacenter-grade proxy in front of a target site. Functionality is solid, but raw throughput is lagging behind expectations. The immediate goal is performance optimization with a laser focus on execution speed—latency per request must drop and overall RPS needs to climb noticeably without sacrificing stability. You’ll be diving into a fairly idiomatic async stack (Tokio + hyper) that already handles connection pooling, routing, and basic health checks. The challenge is to profile, pinpoint, and remove bottlenecks in the critical path: connection handshake, frame parsing, and response streaming. If you prefer flamegraph, cargo-bench, criterion, or any other standard Rust profiling tool, feel free to bring it in; I care about measur...
I need a compact Delphi routine that takes the serial information from a Skoda Swing radio and returns the correct unlock code, then simply presents that code on-screen. The focus is solely on the Swing variant (not Bolero or Columbus), so feel free to streamline the logic for that single model. Core expectations • Written in modern Object Pascal and ready to drop into a VCL or FMX project. • No external DLLs—pure Delphi math / lookup is preferred. • Once the algorithm resolves the 4-digit pin it must be shown to the user through a simple form or console write; nothing more complex. Deliverables 1. Source unit (.pas) with well-commented decoding function. 2. Minimal demo project that shows the code in action. 3. Short read-me describing input requiremen...
Proposal: Technical Writers Needed — System Design / Software Engineering Documents What I'm looking for: I need original, professionally-written technical documents in the software engineering / system design space. Examples of acceptable document types: - System/technical design docs (architecture decisions, trade-offs, constraints, edge cases, failure modes) - Requirements docs or PRDs - Runbooks / SOPs (with exact commands, preconditions, failure handling) - Incident reports / postmortems - Engineering recommendation memos (weighing options, stating a position, driving a decision) Important — please read carefully before applying: This work must be original content you create from scratch for this project — not a document from your current or past job, even i...
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.
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