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Haskell is a general purpose, purely functional programming language. It is one of the more popular purely functional languages, and has an enthusiastic user base. It has a wide range of application in areas as diverse as systems programming, scripting, and scientific computing.
Find a top-notch Haskell Developer on Freelancer.com for your development needs. From creating programs and apps to debugging code and optimizing performance, our professionals will ensure you get the job done right. We've got a diverse range of talent with multiple levels of expertise, so there's something for everyone!

4.4
4.4
89%

Centre International de Valbonne, France
$35 USD per hour
I am Redouane, a computer science and engineering student, cybersecurity enthusiast, CTF player at Sudo_root. Scripting (Ruby, Python, Lua, Bash), including web scraping and task automation. Low-level programming (x86/x64/ARM/MIPS Assembly, C, C++) Reverse-Engineering / Binary Exploitation / Cryptography. Linux system administration. Root-me profile (top 30 overall): https://www.root-me.org/Redouane-28301 Blog: https://red0xff.github.io/ Google Summer of Code 2020 on Metasploit Framework.

5.4
5.4
100%

Piatra Neamt, Romania
$39 USD per hour
Seasoned professional with 30+ years of experience across hardware and software development. Continuously learning and exploring new software paradigms to deliver robust, client-focused solutions.

9.2
9.2
99%

Daska, Pakistan
$50 USD per hour
Live Experts LLC is a multidisciplinary technology company specializing in Engineering, AI/ML, Embedded Systems, IoT, and Automation Solutions for startups, businesses, and enterprises worldwide. With over a decade of technical delivery experience and hundreds of successfully completed projects, we help clients transform complex ideas into scalable, production-ready solutions that solve real business and operational problems. Our strength comes from combining software, AI, automation, electronics, and engineering expertise under one team. This allows us to handle both digital systems and real-world hardware projects with practical implementation experience. Our expertise includes: • Artificial Intelligence (AI) & Machine Learning (ML) • Generative AI & Conversational AI • AI Chatbots & AI Agents • Computer Vision & OCR Systems • Predictive Analytics & Data Intelligence • Workflow Automation & AI Integration • Embedded Systems & IoT Solutions • Arduino, ESP32 & Raspberry Pi Development • PLC, SCADA & Industrial Automation • Electrical & Mechanical Engineering Support • Sensor Integration & Smart Monitoring Systems • AI-Powered Dashboards & Business Platforms • Cloud APIs & System Integrations • Automation & Control Systems We work with modern technologies including: Python, OpenAI, ChatGPT, TensorFlow, OpenCV, Node.js, React, FastAPI, PostgreSQL, AWS, Docker, MATLAB, Arduino, ESP32, Raspberry Pi, PLC systems, and industrial automation platforms. What makes us different is our ability to bridge the gap between: AI + Automation + Embedded Systems + Engineering Many companies can build software. Others can build electronics. Very few can combine AI, automation, hardware, and engineering into complete intelligent systems that work in real business environments. We have experience working across: • Industrial Automation • Healthcare • Logistics & Fleet Systems • Manufacturing • Finance & Trading Systems • Smart Monitoring Systems • Operational Dashboards • IoT & Connected Devices • AI Business Solutions • Intelligent Automation Platforms Our development approach focuses on: • practical implementation • scalable architecture • clean UI/UX • reliable integrations • business-focused solutions • long-term maintainability • clear communication • premium execution quality Whether you need: • an AI-powered platform • an embedded IoT device • industrial automation • computer vision systems • AI automation workflows • predictive analytics dashboards • AI chatbots • sensor-based monitoring systems • electrical/mechanical engineering support • or a complete intelligent system Live Experts can help design, develop, and deploy reliable solutions tailored to your business goals. We believe in building long-term partnerships and delivering systems that create measurable operational and business value.

8.6
8.6
88%

lahore, Pakistan
$25 USD per hour
TechPlus is a full-stack development and digital solutions provider delivering end-to-end web, mobile, AI, automation, and software development services. We design, build, automate, and optimize digital systems that help businesses scale efficiently — from modern websites and mobile apps to enterprise software, integrations, and intelligent automation solutions. **Services Offered** • Web design & development (CMS, custom apps, e-commerce) • Mobile app design & development (Android, iOS, hybrid) • Automation, scripting, scraping & workflow optimization • AI integrations, chatbots & data processing solutions • API development & third-party integrations • Database architecture, optimization & migration • Custom software & SaaS development **Deliverables & Outputs** • Business websites, dashboards, portals & landing pages • E-commerce stores and CMS-based platforms • Mobile apps with admin panels and backend systems • Automation tools, bots, and integration pipelines • Database systems, reports & analytics solutions • Custom plugins, extensions, and enterprise applications **Technologies & Tools** PHP, ASP.NET, VB.NET, C, C#, C++, Python, Node.js, JavaScript frameworks (React, Angular, Vue), Laravel, CodeIgniter, Django, Flask, Yii, CakePHP, WordPress, Shopify, Wix, Weebly, Squarespace, Magento, OpenCart, PrestaShop, SharePoint, Excel, Google Sheets, APIs, cloud services, and modern development frameworks. TechPlus maintains clear English communication, structured documentation, transparent collaboration, and a strong focus on quality delivery, reliability, and long-term client partnerships.

8.4
8.4
97%

Dhaka, Bangladesh
$30 USD per hour
Hi, I’m Omar Faruk, CEO of ITblast Limited, the number one IT company in Bangladesh. With years of experience in web development, animation, and graphic design, I specialize in PHP, HTML, JavaScript, and Python. I’m also skilled in Linux system administration, Excel automation, Magento, and After Effects, among many other tools. My team and I provide top-quality services in: Web Development – Clean, functional, and user-friendly websites. Graphic Design & Animation – Eye-catching visuals and motion graphics. Data Analytics – Turning raw data into powerful insights. Network & System Administration – Ensuring secure and smooth IT operations. 3D Modeling – High-quality 3D assets for various industries. I believe in collaboration—the best results come from working closely with clients to understand their vision. I’m detail-oriented, committed to delivering high-quality work, and always open to feedback. Beyond my technical expertise, I pride myself on being a great communicator and problem-solver. Whether you need expert guidance or hands-on execution, I’m here to help. Let’s bring your ideas to life! ?

8.5
8.5
97%

Panipat, India
$50 USD per hour
*ੈ✩‧₊˚ DESIGN BRILLIANCE AND DEVELOPMENT EXCELLENCE | WE CRAFT ONLINE SUCCESS STORIES *ੈ✩‧₊˚ I am full stack developer and cofounder of aurelza.com, a full service development agency, offering a comprehensive range of web development and design services. We specialize in creating modern and unique designs and bringing them to life with development services in PHP and JS stacks. With over 8 years of experience, my team and I have designed and developed over 200+ websites, each crafted with precision and creativity. Our Services: ╰⪼ Brand Design ╰⪼ Logo Design ╰⪼ UX/UI Research & Design ╰⪼ Frontend Development with React.js ╰⪼ Backend Development with Node.js, PHP and laravel ╰⪼ WordPress, Wix & Squarespace Development ╰⪼ Shopify Development ╰⪼ Webflow Development ╰⪼ SEO & Backlinks ╰⪼ Digital Marketing ╰⪼ Illustrations and Photoshop Our commitment is to deliver exceptional customer service and high-quality work. We pay meticulous attention to detail, ensuring every project meets the highest technical and aesthetic standards. We thrive on tackling new challenges in coding and design, making the process enjoyable and rewarding.

8.1
8.1
97%

SIALKOT, Pakistan
$50 USD per hour
Modular Solutions delivers advanced Engineering, AI/ML, Embedded Systems, and IoT solutions for startups, enterprises, researchers, and industrial clients worldwide. We transform complex ideas into production-ready systems — from AI platforms and automation tools to embedded hardware, enterprise software, industrial controls, simulations, and engineering designs. Our expertise combines Artificial Intelligence, Machine Learning, Computer Vision, Deep Learning, Data Science, Analytics, and Automation with strong software engineering capabilities in Python, C/C++, Java, C#, .NET, PHP, JavaScript, SQL, MATLAB, Simulink, and Linux-based systems. On the hardware side, we specialize in Embedded Systems, IoT Devices, FPGA/Verilog/VHDL, PCB Design, Raspberry Pi, Arduino, ARM development, RF systems, electronics, firmware, industrial automation, sensor integration, DSP, and hardware/software interfacing. We also provide Mechanical, Electrical, Civil, and Structural Engineering services including AutoCAD, Civil 3D, SolidWorks, CAD/CAM, Product Design, 3D Modelling, Simulation, Renewable Energy systems, and technical feasibility analysis. Our experience includes: • AI-powered analytics and automation platforms • Facial Recognition and OpenCV systems • Enterprise SaaS and backend platforms • Industrial automation and control systems • FPGA and embedded hardware development • MATLAB/Simulink modeling and simulation • IoT evaluation and sensor systems • CAD drafting and engineering design • Unity 3D and simulation applications • Data analytics and statistical analysis • Research, technical writing, and documentation We also support clients with Project Management, Business Analysis, Finance, Accounting, Bookkeeping, QuickBooks reconciliation, Reporting, Scientific Research, Research Writing, Technical Writing, and enterprise consulting. Our technical stack and domains include: AI & Machine Learning | Deep Learning | Neural Networks | Computer Vision | OpenCV | Data Science | Big Data | Statistical Analysis | SPSS | R Programming | Python | MATLAB | Simulink | Algorithm Development | Data Mining | Text Mining | C Programming | C++ | Java | C# | PHP | JavaScript | SQL | .NET | Software Architecture | Linux | Web Development | Electronics | Electrical Engineering | FPGA | Verilog/VHDL | Embedded Systems | IoT | Arduino | Raspberry Pi | ARM | PCB Design | RF Communications | DSP | CAD/CAM | AutoCAD | SolidWorks | Mechanical Engineering | Civil Engineering | Structural Engineering | Product Design | 3D Modelling | Unity 3D | Technical Writing | Research Writing | Project Management | Finance | QuickBooks | Business Analysis Clients choose Modular Solutions for strong communication, fast execution, technical depth, and the ability to solve complex engineering and software challenges under tight deadlines. We focus on delivering reliable, scalable, and production-ready solutions tailored to each client’s goals.

7.4
7.4
95%

Karachi, Pakistan
$40 USD per hour
I'm Muhammad Ashar, a passionate digital creator specializing in immersive experiences across game development, website design, and both 2D and 3D art and animation. With years of hands-on experience, I take pride in delivering high-quality, creative solutions that bring ideas to life. Whether you're looking to build a captivating game, design a modern and responsive website, or create eye-catching visuals and animations, I offer end-to-end services tailored to your specific needs. My Services: Game Development: Designing and developing engaging games for various platforms. Website Development: Creating clean, responsive, and user-friendly websites. 2D & 3D Art: Crafting visually stunning artwork and models for games, media, and more. Animation: Producing dynamic animations that enhance storytelling and audience engagement. Graphic Design: Delivering impactful designs for branding, marketing, and digital media. I'm committed to blending creativity with technology to help bring your vision to life. Let’s work together to turn your ideas into reality.

7.0
7.0
100%

Gáborján, Hungary
$20 USD per hour
7+ years experience as a software developer, worked on many .NET (full stack) and Android projects for individual and corporate clients with 100% satisfaction rate. - Desktop, web and server side development - C#, Java, Visual Basic - WPF, Windows Forms, UWP, MVVM - MVC, Javascript, JQuery, AngularJS - MS-SQL, MySQL, SQLite, NoSQL - ORM tools: Entity Framework, NHibernate - WCF - Design patterns - VSTO Development - Team Foundation Server (TFS), Git
A Haskell developer is a software engineer who builds applications, libraries, and backend systems using Haskell, a statically typed, purely functional programming language known for type safety, concurrency, and mathematical correctness. Hiring a skilled Haskell developer gives your project access to one of the most expressive functional programming ecosystems available, ideal for systems where reliability, performance, and provable correctness matter more than rapid prototyping.
Haskell programmers produce code that is concise, type-safe, and resistant to entire categories of runtime errors. The language's strong static type system, lazy evaluation, and pure functions make it especially valuable in domains where bugs are expensive — finance, compilers, distributed systems, blockchain, and data engineering.
A freelance Haskell engineer typically delivers production backend services, domain-specific languages, parsers, command-line tools, web APIs, or core libraries. Beyond raw code, expect well-typed interfaces, property-based test suites, and clean documentation that lowers maintenance cost over the long term.
Strong Haskell freelancers are fluent in the toolchain that surrounds the language. Look for proficiency with GHC (the Glasgow Haskell Compiler), Cabal, Stack, and Nix for reproducible builds. On the library side, common stacks include Servant for type-safe APIs, Persistent or Beam for database access, Aeson for JSON handling, and Lens or Optics for data manipulation.
Senior Haskell consultants often have working knowledge of adjacent functional ecosystems — PureScript, Elm, OCaml, Scala, or Rust — and can integrate Haskell services with systems written in other languages over gRPC, HTTP, or message brokers.
Haskell is a specialist choice, and the industries that rely on it tend to do so for specific reasons:
Haskell talent is a smaller pool than mainstream language communities, so evaluation should focus on depth rather than years alone. Look for public contributions to Hackage packages or open-source projects, written articles explaining type-level concepts, and a portfolio that demonstrates production deployments rather than only academic exercises.
Strong signals include comfort with monad transformers or effect systems (mtl, fused-effects, polysemy, effectful), familiarity with property-based testing, experience tuning GHC for performance, and a clear point of view on architectural trade-offs. Sample questions you can use directly:
Freelancer.com gives you direct access to a global community of functional programmers, including specialists who work with Haskell every day. Because Haskell expertise is concentrated in a smaller talent pool worldwide, posting a project on Freelancer.com lets you reach qualified candidates across multiple regions rather than being limited to local hiring.
You set the budget, review competitive bids, and inspect verified profiles, ratings, and portfolios before committing. Milestone Payments protect your funds until agreed deliverables are met, and Freelancer.com's chat and file-sharing tools keep the engagement organised from brief to delivery.
Ready to build with one of the most powerful functional languages available?
Hiring a Haskell engineer works best when you treat the brief as a technical specification rather than a job ad. Haskell projects vary widely — from a small parsing library to a production trading system — so the clearer you are about scope, dependencies, and target architecture, the better your bids will be. The process below walks you through it on Freelancer.com.
Your project post is the single biggest determinant of bid quality. A precise brief filters for Haskell developers whose experience genuinely matches your stack, and saves you from sifting through proposals from candidates who only know the language academically. Head to the
Bids on Haskell projects are short proposals, not just price quotes. They reveal how each freelancer interprets your brief, what architecture they would propose, and whether they ask the kind of clarifying questions a senior engineer would ask. Read each bid carefully and shortlist candidates whose technical thinking matches the project.
The final decision combines proposal quality with profile evidence. Look for consistency across past Haskell engagements rather than a single standout project, and weigh client feedback alongside the technical depth visible in the portfolio. For specialist languages like Haskell, repeat clients and long engagements are especially strong signals.
Haskell is a strong choice when correctness, concurrency, or complex domain modelling are central — for example in financial systems, compilers, or blockchain platforms. For straightforward CRUD apps with tight time-to-market pressure, a more mainstream stack is often more practical.
Yes. Many Haskell freelancers on Freelancer.com take on focused engagements such as building a parser, writing a microservice, auditing an existing codebase, or implementing a specific algorithm. Defining a tight scope and clear deliverables in your brief makes short engagements run smoothly.
A functional programmer may work across languages like Scala, OCaml, Elixir, or F#, while a Haskell developer specialises in Haskell's type system, lazy evaluation, and ecosystem. If your codebase is in Haskell, prioritise candidates with direct, recent Haskell production experience over generalists.
Many do. Plutus, the smart contract platform on Cardano, is written in a subset of Haskell, so experienced Haskell engineers transition into Plutus development naturally. If you need blockchain work, mention Cardano or Plutus explicitly in your project brief.
For a single service, library, or audit, an individual freelancer is usually faster and more cost-effective. For a multi-team, long-running platform with infrastructure and DevOps needs, an agency or assembled team of freelancers may be a better fit.

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