Browse Freelancers

chevron-down
postgresql
Role
Skill
No Results Found
Location

Twine Business

Save time finding the perfect freelancer with Twine Business. Promotion, sourcing and vetting.

heart
Expert in: Python, Docker, TypeScript + 15 more
I'm a Full-Stack Engineer focused on building agentic systems, RAG pipelines, and LLM-integrated workflows that solve real business problems. I collaborate with early-stage startups and enterprise teams to deploy production-grade AI features that move fast and measure impact. My strengths include LangChain, Lang Graph, Pinecone, and embedding models, with a bias for velocity, measurable outcomes, and cross-functional collaboration.
More info
heart
Expert in: JavaScript, TypeScript, Node.js + 9 more
Software Developer and Sysadmin, I build efficient software in a secure environment! Being in IT since many years, I have a strong understanding the full stack, from low level programming to Kubernetes and Linux, as well as web development. I've successfully completed many IT projects for my previous employers and now I want to solve other real world problems as a freelancer. Also I invoice results, not hours! We agree on the desired deliverables and then we fix their prices in advance. Right now I offer a starter rate as I just began freelancing! ----------------------------------------- - ERP development There was an ERP developed on FileMaker, but it was increasingly showing its limitations. Regularly overloaded with a database that was becoming increasingly difficult to manage, it became urgent to replace it. My role was project manager and developer. - QlikView dashboards Dashboards accessible from QlikView software should enable detailed analysis of the company's performance indicators. My role was project manager and developer. - Web dashboards As the QlikView license was expensive, it was decided to redevelop the dashboards using open-source technologies. My role was project manager and developer. - Accounting module Automatically retrieve supplier and customer invoices in order to allocate the amounts to the correct accounting accounts. After that, it was necessary to check that the accounts were correct. My role was project manager and developer. - Interfacing with logistics Development of an ERP system for logistics and interfacing with administration to enable the most automated invoicing of deliveries possible. My role was project manager and developer. - Order and delivery management The logistics department had a second client that needed its own platform because order management was too different. My role was project manager and developer. - Tour management Application for organizing distribution routes. My role was project manager and developer. - Migrating from Jest to Vitest Migrated the application's unit tests from Jest to Vitest and from jsdom to happy-dom. I was responsible for the migration. - End-to-end testing Added end-to-end testing to the application. My role was to set up the first e2e tests. - Electronic signature Enable PDFs to be signed electronically from the platform interface with an advanced or qualified signature level. My role was to set up the minimum product in collaboration with a colleague. - Migration from Angular to React Migrate web application pages from Angular to React. My role was Fullstack Developer. - Personal projects In my spare time, I enjoy developing personal projects of varying sizes and in different languages. These range from a website for my wife's institute to algorithms to familiarize myself with new technologies and longer-term projects (>812 challenges solved)
More info
heart
Expert in: CSS, JavaScript, HTML5 + 16 more
I’m a principal developer with 27 years’ experience building websites, web applications, component libraries and design systems. I have 15 years’ experience as a senior-level tech lead and I’m looking for principal, senior, and architect level developer roles where I can contribute to building amazing, useful products as part of a top-notch team.
More info
heart
Expert in: Web Design, CSS, Django + 20 more
I'm Parth K, a full-stack developer and software engineer with a unique edge: a PhD in NLP and AI that fuels how I build intelligent, data-driven applications. I don't just write code; I architect scalable systems that solve real problems with modern tech stacks and AI integration. I've worked with multiple clients across the US and Europe, delivering production web applications including automation platforms, portfolio websites, travel agency booking systems, eCommerce stores, data dashboards, and payment-enabled platforms. My tech stack: React, Vue.js, Next.js frontends, Node.js, FastAPI, Go, Rust backends, deployed on AWS/GCP with Docker containerization and CI/CD pipelines via GitHub Actions. I specialize in integrating AI/ML capabilities, transformer models, NLP pipelines, recommendation engines, automated content analysis directly into web platforms. My experience spans RESTful/GraphQL APIs, PostgreSQL/MongoDB/Redis databases, OAuth 2.0 authentication, WebSocket real-time features, Stripe/PayPal payment integration, responsive UI with TypeScript/Tailwind CSS, and performance optimization. From travel booking flows and inventory management systems to marketing automation and analytics dashboards, I handle full project lifecycles: requirements gathering, architecture design, development, testing, cloud deployment, and comprehensive documentation. I've trained LLMs at ScaleAI, annotated datasets at Invisible Technologies, and published research at top AI conferences, but my strength is translating technical complexity into clean, maintainable code that ships on time. I communicate clearly, collaborate naturally across time zones, and thrive building software that's fast, secure, and user-centered. I deliver fast, smart, empathetic technology. Let's build something meaningful.
More info
heart
Expert in: HTML5, JavaScript, React JS + 4 more
Passionate about creating accessible, robust full-stack web applications that solve complex business challenges.
More info
heart
Expert in: Docker, Node.js, React JS + 13 more
Hello, I’m Umer Nisar. I’m a Backend Software Engineer specializing in building secure, high-performance, and scalable systems. My core expertise is in Go and Node.js. I design and implement robust microservice architectures and clean, efficient RESTful APIs. I have a proven track record of taking complex applications from concept to production. I am proficient in containerizing applications with Docker and deploying them on cloud platforms. My project work includes engineering Go-based backends designed for high concurrency, integrating AI-driven data handling, and building full-stack project management tools from the ground up. With a Bachelor’s in Software Engineering and a Minor in Artificial Intelligence, my passion is solving complex problems. I’m looking to bring my skills in scalable architecture to a challenging and impactful role.
More info
heart
Expert in: Prompt Engineering, Python, GPT + 15 more
Principal AI Automation Architect with industry's most comprehensive automation portfolio. Creator of UnifyAI multi-LLM platform and AINXAgent system serving enterprise clients across Healthcare, FinTech, EdTech, and AgriTech industries. Unique value proposition: 65+ production repositories representing complete AI ecosystem architecture experience. Specialized in advanced prompt engineering, multi-model optimization (OpenAI, Claude, Perplexity), and enterprise-scale automation delivering measurable ROI (£150,000+ documented cost savings). Core expertise: API orchestration, CX automation, B2B tools, no-code platforms, and cross-industry digital transformation. Proven track record training 50+ professionals with 95% adoption rates and managing complex automation projects across multiple time zones. Portfolio highlights: UnifyAI Platform: "All AI. One Platform. Infinite Possibilities" - comprehensive multi-LLM ecosystem AINXAgent: Complete full-stack AI agent system supporting 1000+ concurrent users Universal Chatbot SaaS: Multiple platforms optimized for various AI models Cross-Industry Solutions: Healthcare (medtranslate-ai), FinTech (fininsight), EdTech (learning-platform), AgriTech (homegrow) Immediate contribution capability: Principal-level strategic consulting, complete platform architecture, and enterprise AI transformation leadership. Available for high-impact projects requiring deep automation expertise and proven business results. Portfolio: github.com/sreejagatab | Website: jagatab.uk Skills to Add: Prompt Engineering, OpenAI, Claude, Perplexity API Business Process Automation, API Orchestration, CX Automation TypeScript, JavaScript, Full-Stack Development, Microservices No-Code Platforms, SaaS Architecture, Enterprise Integration Healthcare AI, FinTech Automation, EdTech Solutions, AgriTech
More info
heart
Expert in: 3D Model, AI Chatbot, AngularJS + 13 more
I'm a developer who specializes in providing end-to-end digital and tech solutions from building modern websites to immersive games, 3D models, and AI-powered systems. With a background spanning web design, full-stack development, game development, and artificial intelligence, I bring a rare mix of technical depth and creative vision. I don’t just write code, I build products that are functional, visually engaging, and scalable for the future. What sets me apart is my ability to bridge multiple domains: As a Web Designer & Full Stack Developer, I deliver sleek, responsive interfaces backed by secure, efficient server logic. As a Game Developer & 3D Modeler, I craft interactive experiences with realistic visuals, creativity and smooth performance. As an AI Developer, I integrate automation, machine learning, and intelligent systems to give businesses a competitive edge. Over the years, I’ve worked with startups, agencies, and established companies, helping them turn ideas into high-performing digital products. Clients trust me because I combine technical expertise, creative problem-solving, and clear communication ensuring their projects are delivered on time, with precision and care. If you’re looking for a developer who can take on complex, cross-disciplinary projects and deliver results that truly stand out, message me now and let’s work together.
More info
heart
Expert in: Python, Docker, JavaScript + 12 more
Hi there! I'm Adnan Bin Pulok, a software developer with 3+ years of experience in back-end development and automation. I build reliable web apps and automation solutions, and I enjoy choosing the right tool for the job. Recently I expanded into front-end work and I'm excited to apply UI/UX ideas to full-stack projects. I work with Python, JavaScript, FastAPI, Jinja2, PostgreSQL, and more to deliver scalable, maintainable software.
More info
heart
Expert in: JavaScript, CSS, React JS + 16 more
I am a detail-oriented Full-Stack Developer with over 10 years of experience in building scalable web applications and services. I am proficient in both front-end and back-end technologies, always focusing on user experience and performance optimization. I enjoy collaborating with cross-functional teams to deliver high-quality software solutions and have worked extensively on projects in luxury fashion, retail, and enterprise software domains, utilizing a wide array of modern technologies and cloud services.
More info
heart
Expert in: TypeScript, Express, Github + 13 more
I'm Damitha Perera, a Senior Software Engineer & Full-Stack Developer from Sri Lanka with 7+ years of industry experience, delivering software solutions for clients in Europe, Australia, and Asia. I focus on creating secure, maintainable, and scalable systems — from backend architecture and databases to cloud deployment and frontend development. My experience spans SaaS, AI-driven apps, FinTech, HealthTech, and E-commerce platforms. 💻 Tech I Work With Backend: Node.js (Express/NestJS), Ruby on Rails, Python (FastAPI) Frontend: Angular, React, Next.js, TailwindCSS Databases: PostgreSQL, MySQL, MongoDB, DynamoDB, Redis Cloud & DevOps: AWS (Lambda, S3, EC2), Docker, Serverless, CI/CD pipelines Other: Microservices, REST APIs, WebSockets, OpenAI/GPT, Stripe, Firebase 🚀 What I Do Best Build reliable backend services, APIs & cloud-native microservices Architect scalable systems using AWS & modern DevOps practices Develop full-stack applications from UI to deployment Lead and mentor developers while maintaining clean code standards Deliver solutions for SaaS, AI, FinTech, HealthTech & E-commerce ✅ Available for Remote & Freelance Projects – Let’s build something great together! --- **Employment and project experience** **Senior Software Engineer** 99X Pvt Ltd Sep 2022 – Present Developed scalable backend systems using Node.js, Ruby on Rails & Python (FastAPI) Integrated AI-powered solutions using OpenAI and AWS cloud services Mentored interns and contributed to Agile sprints, code reviews, and technical design Worked on enterprise products using AWS Lambda, MySQL, MongoDB & Angular **Freelance Ruby on Rails Developer**Swivel Group. _Dec 2024 – Feb 2025_ Built and maintained Ruby on Rails applications for client-facing platforms Optimized backend performance, database queries, and implemented API-level security Collaborated with product managers, designers, and remote developers **Software Engineer / Senior Software Engineer** KeenEye Solutions Pvt Ltd Feb 2020 – Sep 2022 Developed web-based platforms using NestJS, AWS, MongoDB & MySQL Built microservices, backend APIs, and desktop apps using Electron.js Mentored junior developers and participated in system architecture decisions **Associate Software Engineer / Software Engineer** – Ellipsis Pvt Ltd Built and maintained web applications using Node.js, Angular (2 & 4), MongoDB, and MySQL Integrated payment services (Stripe, eWAY) and Firebase Participated in full SDLC including design, development, and deployment
More info
heart
Expert in: Data Science, Elearning, Python + 10 more
Over 5 years of experience building and deploying ML models in production. Specializing in EdTech, adaptive learning, recommendation systems, MLOps, with recent project experience in LLMs and NLP. Seeking to apply my expertise in model optimization and robust software engineering to solve challenging business problems.
More info
heart
Expert in: Unity 3D, Unreal Engine 4, C++ + 13 more
I’m Anirban Ghosh, a Lead Developer and Architect - Technology with 22+ years of experience in AI, Simulation, Gaming, AR/VR, and Digital Twin across Industry 4.0. I’ve hands-on experience with Unity3D and Unreal game programming for multiplayer titles on PC, mobile, and browser platforms. I’ve led solution architecture and development efforts across top studios and clients, including roles at Parallel Galaxies, Cognizant, Cyient, Capital Numbers, Hungama/Tata Sky, Reliance JumpGames, and Walt Disney UTV Indiagames, delivering immersive simulations, AR/VR training modules, and Web3/game projects. I am passionate about AI, simulation, and digital transformation in gaming and metaverse applications.
More info
heart
Expert in: MongoDB, TypeScript, Tailwind + 24 more
I am a backend engineer focused on designing scalable systems and optimizing performance for millions of users. I specialize in microservices, distributed architectures, and building robust APIs that scale under high load. I have built AI-powered SaaS platforms, integrated with OpenAI, ElevenLabs, Twilio, and Stripe, and I have unified multiple AI microservices into efficient backends. I also deploy and manage AWS infrastructure and lead cross-functional teams to deliver product releases ahead of schedule.
More info
heart
Expert in: C++, Unity, C# + 7 more
I am a highly skilled game developer with 20+ years of experience, with proven abilities to implement frontend game systems, backend game servers, and game data management systems, on various platforms from mobile devices to PC online and video game consoles. I am proficient in industry standard game engines and game audio middlewares and have expertise in object oriented programming (OOP) and network programming. Collaborative by nature, I thrive in Agile teams, bridging the gap between engineering, audio, and design to ship engaging experiences on Unreal and Unity platforms.
More info
empty user Roles
heart
user displayname
No roles
vulputate rhoncus. Mauris In vitae accumsan quam. Pellentesque convallis nisl vitae nisl tincidunt, ut aliquam velit bibendum. Nullam eget sagittis est. Vivamus sit amet finibus nunc. Nam eu mauris commodo, tempor tortor id, rutrum purus. Praesent condimentum ullamcorper fringilla. Aliquam erat volutpat.
Twine

Connect with our global network and bring the freelancers to you.

Post a project