Full Stack Developers
from over 15,000 CVs, matched in minutes with the power of AINeed someone who can move across React, Node.js, APIs, databases, and deployment without handoff gaps? Find vetted full stack freelancers for web apps, product rebuilds, internal tools, and integration work, with fast and precise matching to available experts.
Meet FRATCH Full Stack Developer
Paul B.
Last position:
Full-Stack Developer / Software Architect at HUK Coburg
Development and further enhancement of an internal quotation system for managing and analyzing insurance policies. The focus was on consolidating existing systems, establishing modern development standards, and improving testing, security, and deployment processes. Alongside implementing new features, special attention was paid to code quality, security, and performance.
Responsibilities:
- Full-stack development of an internal quotation system based on Spring Boot and Angular
- Design and implementation of a secure Spring Security configuration, including certificate management
- Merging two bounded contexts using Domain-Driven Design (DDD)
- Introducing and integrating Testcontainers for automated integration tests
- Establishing and applying common testing methods (unit, integration, and end-to-end tests)
- Presenting and integrating Cypress as a black-box GUI testing tool
- Improving the CI/CD pipeline through automated versioning and a custom Jenkins Library
- Proof of Concept (PoC) for state management with NgRx in the frontend
- Refactoring legacy code and fixing incorrect Spring Boot configurations
- Training developers in Clean Code, best practices, and the Spring Framework
- Developing a tool to analyze test data and improve quality
- Further development of the existing Cucumber project
- Carrying out dependency updates and analyzing and maintaining the application
- Implementing telemetry and building a Dynatrace dashboard
- Improving technical documentation in line with Arc42 and introducing AsyncAPI
Technologies: Scrum, TDD, CleanCode, Spring Boot, Java, Angular, NgRx, Testcontainers, Cypress, Cucumber, Jenkins, Dynatrace, Docker, Git, Maven, Kafka, Oracle, REST, DDD, Arc42, AsyncAPI, IntelliJ, Jira, Confluence, Windows, Linux
Christopher K.
Last position:
Full-Stack Software Developer at Ubitec GmbH
- Contributed to KIPITZ, a sovereign AI deployment and app platform for the public sector (main client: ITZBand).
- Implemented advanced AI applications (RAG systems, TTS, STT) and production code for large-scale LLM deployments.
- Further developed a complex microservice architecture, primarily with Python (Django), TypeScript, RabbitMQ, and vLLM.
Justin R.
Last position:
Taking over and cleaning up an online shop at Association (Switzerland)
- Starting point: The website and shop had grown through work by several service providers. After a domain change, the display, links and search engine listings were no longer correct
- Standardized the typography and updated the product detail page for desktop and mobile devices
- Corrected links and SEO settings for the new domain
- In consultation with the client, removed pages, plugins and styles that were no longer needed
- Technology: WordPress, WooCommerce, Elementor, custom theme, Rank Math
Denis K.
Last position:
Interim Lead Digital Platform & Marketing at German Dynamic Drone Center GmbH
- Designed and developed the central company platform LINK: tasks, CMS, shop, academy, image database, fleet records, and AI assistant in a shared data model on PostgreSQL.
- Supported the transformation of established standalone solutions into a cloud architecture; analyzed the existing data landscape and migrated it step by step.
- Integrated internal and external data sources via APIs and webhooks: Microsoft 365, shop with accounting integration, and manufacturer data.
- Implemented an AI assistant for knowledge access and document analysis, including an approval process before sending.
- Migrated and rebuilt a 49-page website with SEO in mind; launched data-driven tools (Drone Finder, Permit Finder) and lead forms.
- Served as the link between management, operations, and IT: analyzed processes on-site, translated requirements into technical solutions, and trained a team with little digital experience using real work.
Robin G.
Last position:
SEO Expert & Consultant at DANKÃœCHEN
Used Screaming Frog, Ahrefs, Semrush, Google Ads, and Google Search Console (and more) to perform an SEO audit of the DANKÃœCHEN website and their franchises, resulting in an improvement of many of their main keywords from low top 10 to consistent top 3.
Malik O.
Last position:
AI Scientist at SQPS
- Intelligent Document Processing Engine with OCR & Computer Vision: Architected the end-to-end AI pipeline at the core of the SQPS GenAI document-processing product, which turns scanned paper and PDF batches into organised, searchable documents, combining image pre-processing, OCR and layout analysis for mixed-quality scans. Technologies: Python, OpenCV, Tesseract / PaddleOCR, PyTorch, FastAPI
- Automatic Document Splitting & Classification: Developed models that detect where one document ends and the next begins inside a single multi-document scan, and classify each one by type (invoices, contracts, letters, reports) to enable fully automated filing. Technologies: Python, PyTorch, scikit-learn, Hugging Face Transformers
- Information Extraction & Intelligent File Naming with LLMs: Implemented an LLM-based GenAI extraction system that reads dates, names and reference numbers from unstructured documents and uses them to generate consistent, rule-based file names, with configurable naming conventions per organisation. Technologies: Python, LangChain, OpenAI, SentenceTransformers, SQL
Benjamin W.
Last position:
Founder and Fullstack Engineer at Customermates
Building an open-source CRM with AI integrations
Open-source CRM for small teams, offered as a cloud version and as a self-hosted core product. I own the product technically end-to-end: user interface, business logic, data model, interfaces and operations. Since December 2025, I have been working full-time on Customermates.
Responsibilities:
- Designed and built the CRM workflows for contacts, organizations, deals and tasks, with configurable table and board views.
- Frontend with Next.js, React, Tailwind CSS and MobX; backend business logic with Node.js, Prisma and PostgreSQL, input validation with Zod.
- Built a REST API, webhooks and an MCP interface that lets external applications and AI clients work directly with the CRM.
- Integrated AI assistant based on the Vercel AI SDK, with stored conversations and streamed responses.
- Developed and maintain an n8n community integration for CRM operations and event-driven automations.
- Build, delivery and operations with Docker, GitHub Actions and Vercel, both as a cloud offering and for self-hosting.
Results:
- Product live as a cloud and self-hosted version; source code and integrations public on GitHub.
- More than 200 GitHub stars for the CRM repository (as of 09/2026).
Frontend: TypeScript, React, Next.js, Tailwind CSS, MobX
Backend and data: Node.js, Prisma, PostgreSQL, Zod
APIs and AI: REST, Webhooks, MCP, Vercel AI SDK, n8n
Cloud and CI/CD: Docker, GitHub Actions, Vercel
Karl F.
Last position:
Managing Director at ONECEPT GmbH
Piotr C.
Last position:
Full Stack Software Developer at Meteomatics AG
- Created the MetX Assistant and was its primary driver from concept through production with real users; designed and oversaw telemetry and presented the system in demos.
- Built React, TypeScript and Python features for MetX, a scientific weather visualization platform; integrated internal data APIs and improved caching, request handling and rendering workflows.
- Contributed to company MCP tooling and led AI workshops and internal automation initiatives, including experiments connecting AI agents with Slack, Jira and Git.
- Acted as the team's Observability and DevOps subject matter expert, supporting service reliability, deployment workflows, monitoring and troubleshooting.
- Participated in Security, Observability and AI Communities of Practice.
Sascha N.
Last position:
Consultant at Kallisto Consulting GmbH
- Planning and further development of responsive CMS websites
- Frontend development and extension of internal PHP applications
- CONTENS and OpenCms
Mario M.
Last position:
Co-Founder and CTO at B2B SaaS Recruiting Platform
Complete build of a B2B SaaS platform for recruitment agencies
- Multi-source job aggregation via ATS APIs
- AI-assisted career page scraping
- Rule-based and AI-assisted matching
- Credit-based monetization model with Stripe integration
- Live in production since July 2026
Tech stack
- NestJS
- React
- PostgreSQL
- pgvector
- Claude AI
- Prisma
Gergely G.
Last position:
Blazor Founder, Certified Points of You® Business Trainer, Full Stack ASP.NET Core Developer Employee Training at Resonance Solutions GmbH
Umut T.
Last position:
App Engineer at Tonies SE
Worked as an App Engineer as part of the IoT Control team in a React Native Stack.
- Implementing new Components based on the Tonies Design System.
- Improving, extending and maintaining Tonies Design System
- Adding new features like Volume and Playback Control of the Tonies
- Fixed connection issues via bluetooth and wifi
- Removing technical debt and polishing for an upcoming big software and hardware release
- Improving accessibility by optimizing screens and components for usage via screen readers.
- Wrote lots of automated tests to ensure app quality is always stellar.
- Weekly app releases in a high volume workload environment
Results & Impact:
- Improved app stability and connection reliability ahead of a major software and hardware release
- Raised overall app quality through a significantly broader automated test suite, catching regressions before they reached users
- Made the app usable with screen readers, improving accessibility for a wider audience
- Sustained a weekly release rhythm in a high-volume production environment without quality regressions
Technologies: react-native, expo, typescript, react-19, react-compiler, react-navigation, zustand, @tanstack/react-query, i18next, figma, app-store, play-store, sentry, bitrise, config-cat, poeditor
Christian H.
Last position:
Senior Full Stack Developer at Adria Magazin GmbH
Jesolo Tickets – Booking platform for tickets
Design and implementation of a multi-tenant booking platform for the online sale of bus and ferry tickets in the Jesolo region of northern Italy. Travel agencies and event organizers embed a customizable booking widget on their own websites; travelers check live availability, book multiple passengers and pay online in just a few clicks.
- Real-time booking: Schedules and prices are provided live via the transport providers' APIs; after payment, tickets are automatically delivered as QR-coded PDFs – with no manual issuing required.
- Provider architecture: New providers can be onboarded without code changes; an origin-based multi-tenant model with its own domain and payment configuration for each partner site allows the platform to grow with every customer.
- Clean architecture: Three-layer structure (Handlers → Services → Data Store) with caching – availability queries remain fast and maintainable even with many parallel requests.
Tech-Stack: Go, Echo, PostgreSQL (pgx), Stripe, Web Components, Tailwind CSS, esbuild, Docker, GitLab CI, Hetzner VPS
Ned O.
Last position:
Tech Lead at R3leaf GmbH
- Autonomously drafted architecture and delivered production code at startup pace
- Wrangled diverse geospatial formats (NETCDF, GeoTIFF, GML) into unified standards and built scalable climate data visualisations from hundreds of GBs of geodata in a production web app
- Mentored developers, facilitated AI skill sharing, and contributed to competitive strategy with C-Level leadership
Discover over 15,000 top freelancers
Full Stack Developer statistics
Aggregated from the professional profiles of matched freelancers.
Experience
16 years
Position duration
2.8 years
Positions per freelancer
12
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Retail, Banking and Finance
Certification focus areas
Information Technology, Product Development, Project Management
Bachelor's degree or higher
88%
Master's degree or higher
48%
Doctorate
6%
Certifications per freelancer
2
Most common languages
German, English, French
Speak two or more languages
98%
Based on our profile pool as of 11 Nov 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this role are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows the share of experts charging within that range.
Average rates for Full Stack Developer
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 11 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Full Stack Developer experts industry focus
See which industries our matched freelancers work in most often — every figure is calculated live from the freelancers on FRATCH.
- Information Technology (98%)
- Retail (48%)
- Banking and Finance (48%)
- Automotive (35%)
- Healthcare (34%)
- Media and Entertainment (33%)
- Manufacturing (32%)
- Insurance (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the role
What they build
A Full Stack Developer works on both the front end and the back end of a product. They turn product ideas into working web applications, connect services, and keep the user experience and server logic aligned.
- Build user interfaces with clean, maintainable code
- Create APIs and connect them to databases and third-party services
- Fix performance issues across browser, server, and data layers
- Add login, roles, workflows, forms, dashboards, and business logic
Core skills
Strong Full Stack Developers know how to move between layers without losing sight of the product. They understand modern JavaScript or TypeScript, a front-end framework such as React, and back-end work with Node.js, Python, Ruby, Java, or similar stacks.
They should also be comfortable with SQL, schema design, authentication, testing, Git, debugging, and release processes. A good freelance developer writes code that is readable, practical, and easy for an internal team to take over.
Tools and stacks
The exact stack depends on the product, but common choices include React, Next.js, Vue, Node.js, Express, PostgreSQL, MySQL, MongoDB, REST APIs, GraphQL, Docker, and cloud services. In product teams, a Full Stack Developer may also work with CI/CD pipelines, headless CMS tools, analytics, and payment or identity integrations.
This role is especially useful when one person needs to own the full path from interface to server to database. That is common in SaaS, e-commerce, marketplace, logistics, and internal business software.
When companies hire
Companies bring in freelance Full Stack Developers when they need speed, flexibility, or a very specific skill set. Typical cases include a new product launch, a feature rebuild, a migration from one framework to another, backlog cleanup, or support for a small in-house team.
- Build an MVP or prototype without hiring separate front-end and back-end specialists
- Add features to an existing product with limited internal capacity
- Modernize legacy code and reduce technical debt
- Support short, focused delivery sprints for product, platform, or operations teams
What strong profiles show
A strong Full Stack Developer makes trade-offs clearly. They can explain why a feature should live in the client, server, or database, and they write code that fits the project stage instead of overengineering it.
Look for people who communicate well with product managers, designers, and engineers. The best freelancers keep scope tight, document their work, and hand over a system that your team can maintain.
Good collaboration
Full stack work often starts with a short audit of the codebase, architecture, and release setup. After that, the freelancer should be able to plan tasks, work in your repo, and ship changes in small, testable steps.
If your team is remote, this role works well with clear tickets, code review, and regular check-ins. If the work touches sensitive systems or complex integrations, on-site time can help at the start, but most delivery can still move online.
Frequently asked questions
Questions about Full Stack Developer? Start with the answers below.
A Full Stack Developer handles both the interface and the server side of a product. That can include building pages, wiring APIs, working with databases, fixing bugs, and shipping new features end to end. Companies often hire this role when they want one person who can move across the whole stack without waiting on multiple specialists.
A strong full stack developer should be solid in modern JavaScript or TypeScript and at least one front-end framework such as React or Vue. They also need back-end skills, database knowledge, testing habits, and a clear way of working with Git and code review. Good communication matters as much as technical depth, because they need to coordinate across product, design, and engineering.
A Full Stack Developer works across both sides of the application, while a front-end developer focuses on the browser and a back-end developer focuses on server logic and data. The full stack role is useful when the same person must connect the user experience to APIs, databases, and deployment. It is not about doing everything alone; it is about being able to own the full path of a feature.
A freelance Full Stack Developer makes sense when the need is project-based, urgent, or tied to a specific stack. Companies often choose this route for MVPs, migrations, feature bursts, or temporary support for an overloaded team. It is also a practical option when you need senior execution before you are ready to add a permanent role.
Most Full Stack Developers can work remotely if the scope is clear and the team uses good documentation, ticketing, and code review. On-site time can help at the start of a project, especially for product discovery, architecture talks, or work with sensitive systems. For ongoing delivery, remote collaboration is usually efficient if the team shares a single codebase and release process.
Look at recent work, not just a list of tools. A good full stack engineer shows practical judgment, clean code structure, and the ability to explain trade-offs in simple terms. You should also check whether they can discuss testing, deployment, data modeling, and how they would take over an existing codebase.
Yes. Many people search for a Full Stack Developer under titles like full stack engineer, web developer, or software engineer, depending on the product and the company. The important point is the scope: the person should be able to work across the client, server, and data layers, not only one of them.
A Full Stack Developer is a strong fit for web apps, dashboards, internal tools, SaaS products, marketplaces, and integrations between systems. This role works especially well when features cut across several layers and the team wants one person to keep the implementation consistent. It is less useful for very narrow specialist work, such as only UI polish or only infrastructure.
The average hourly rate for Full Stack Developer is 90 €, which corresponds to a daily rate of about 720 € based on an 8-hour working day.
Of the freelancers working as Full Stack Developer, 88% hold at least a Bachelor's degree, 48% hold at least a Master's degree, and 6% hold a doctorate.
On average, freelancers working as Full Stack Developer have 16 years of professional experience, with a single engagement typically lasting around 2.8 years.
The most common languages among freelancers working as Full Stack Developer are German (98%), English (97%), and French (12%).
The most common industries among freelancers working as Full Stack Developer are Information Technology (98%), Retail (48%), and Banking and Finance (48%).
The most common business areas among freelancers working as Full Stack Developer are Information Technology (100%), Product Development (100%), and Quality Assurance (44%).
FRATCH Full Stack Developer main locations
Our freelancers and interim experts are at home all over Germany — available on-site in Berlin, Hamburg, Munich and every major business hub, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Berlin 
Hamburg 
Munich 
Cologne 
Frankfurt 
Dusseldorf In Austria our freelancers and interim experts support companies from Vienna to Graz — on-site where your project needs them, or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Vienna Graz Across Switzerland our specialists are active in Zurich, Geneva, Basel and Bern — working on-site or fully remote. Choose a city to discover matched specialists, local market insights and up-to-date availability.
Zurich Geneva Basel Bern Countries:
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Philipp Thomaschewski
FRATCH CEO
