Smart Contracts Experts in Berlin
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Meet FRATCH Experts in Berlin, who have recently used Smart Contracts
Thomas Ü.
Last position:
Head of Engineering - Midnight at IOG / Midnight
IOG (IOHK), is one of the world's pre-eminent blockchain infrastructure research and engineering companies.
- Converted a lingering R&D project into a cohesive, production-ready testnet; built and scaled the 35-member engineering team (Core, QA, SRE) to achieve this goal.
- Defined strategic direction and aligned technology development with business objectives as a key member of the leadership.
- Optimized software development processes and implemented agile methodologies, enhancing operational efficiency and code security.
- Delivered projects in a fast-paced startup environment through effective project management and resource allocation.
Louis G.
Last position:
Freelance Solutions Architect and Machine Learning Engineer at Self-employed
- Develop and demonstrate solutions using GenAI software like langchain, vercel ai sdk, copilotkit
- Work with customers to understand their challenges and provide the best solutions based on open-source data products
- Build RAG and GraphRAG solutions using Neo4j, lancedb, and Postgres
- Deploy a LLMOps platform using kubernetes, terraform, helmfile, Arize phoenix, mlflow
- Architect and build data pipelines using dbt, Trino, Spark, Iceberg, Airflow, ArgoCD, terraform, kubernetes
- Delivered user-centred technical strategy for Agriculture 4.0 and precision livestock farming, helping my client secure funding from Bpifrance
- Delivered a prospecting tool for a leading French solar carport installer, using geospatial computing (GIS), speeding up the sales process
- Built digital twin architecture for solar carports and EV chargers, making real-time monitoring and smart charging possible
Seyed Farhad M.
Last position:
Senior Product Security Engineer at Delivery Hero
- Developed a custom tool using the Mistral 7B LLM to scan, validate and report security vulnerabilities.
- Security tested AI agents, bots, and other LLMs with a focus on prompt injection, model inversion, data poisoning, EDR/AV bypass and evasion techniques, membership inference, model evasion, overfitting to malicious inputs and contextual manipulation.
- Onboarded repositories to SAST solutions for security scanning, implemented secrets scanning, DAST, SCA, and utilized ZAP for DAST in CI/CD pipelines.
- Engaged in security awareness trainings, developed CTF challenges and training materials to enhance developer security knowledge.
- Planned and executed bi-annual red teaming operations based on the MITRE ATT&CK framework and led internal and external pentests based on the OWASP Top 10 framework for 70+ applications worldwide, resulting in detection, reporting, and remediation of hundreds of vulnerabilities.
- Triaged HackerOne reports.
Hai D.
Last position:
Principal System Architect & Tech Lead at IU International University of Applied Sciences
Leading architecture and delivery of AI-powered educational content platform, managing two development teams with full technical ownership.
Designed and architected the Content Hub platform replacing legacy SiteFusion systems, enabling professors to create AI-assisted learning materials for improved student outcomes.
Established technical strategy, defined architecture requirements, and aligned two cross-functional teams (AI Media Team, TEAQ Team) on a unified delivery roadmap.
Implemented Clean Architecture principles and AI-agent-friendly documentation standards across the engineering organization.
Drove adoption of modern development workflows including CI/CD automation and MongoDB-based content management solutions.
Suvrajit S.
Last position:
Advisor Go-2-Market at Chariot Command Corp.
- Scenario Analysis
- Recommendations
- Disclosures
- Governance
- Market Segmentation
- Go-to-Market Strategy for farm machinery maintenance software
- Cyber Physical Systems
- Additive
Sanju B.
Last position:
Portfolio for Content Management System (Flask, SQLAlchemy, Bootstrap)
- Created a CMS-driven portfolio app for showcasing projects with user authentication, CRUD operations, and Guest Mode.
- Designed and implemented full-stack architecture using Flask, SQLAlchemy, and Bootstrap 5.
- Integrated secure authentication and CSRF protection mechanisms.
- Deployed production-ready web app using Docker and Railway.
- Achieved full project cycle completion: design, development, testing, deployment, and documentation.
- Demonstrated Agile development principles and industry-standard software engineering practices.
Baki B.
Last position:
IT Internship at Perfektup Packaging
- Gained hands-on exposure to Oracle Fusion Cloud ERP, experimenting with its core features and configurations.
- Conducted strategic research on Manufacturing Execution Systems (MES) integration, analyzing vendor proposals and market reports to support the company’s digital transformation roadmap.
- Participated in IT-team meetings on ERP requirements, cross-department coordination, and IT governance practices.
Discover over 15,000 top freelancers
Statistics of experts using Smart Contracts
Aggregated from the professional profiles of matched freelancers.
Experience
12 years
Position duration
2.4 years
Positions per freelancer
7
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Education, Banking and Finance
Certification focus areas
Information Technology, Business Intelligence, Research and Development
Bachelor's degree or higher
100%
Master's degree or higher
71%
Certifications per freelancer
3
Most common languages
German, English, French
Speak two or more languages
100%
Based on our profile pool as of 19 Sep 2026.
Daily rate distribution
The chart shows how the daily rates of freelancers in this technology in Berlin are distributed, based on recent contracts on our platform. Each bar covers a rate range — its height shows how many freelancers charge within that range.
Average rates of experts in Berlin using Smart Contracts
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 19 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
Smart Contracts 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 (100%)
- Education (57%)
- Banking and Finance (57%)
- Automotive (43%)
- Professional Services (43%)
- Agriculture (29%)
- Energy (29%)
- Transportation (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
What they do
Smart contracts are programs that run on a blockchain and execute rules without manual approval. They are used for token issuance, escrow, automated settlement, governance, and other on-chain workflows where trust and replayable logic matter.
Common stacks
- Ethereum and EVM-based networks
- Solidity and Vyper
- Hardhat, Foundry, and Remix
- OpenZeppelin libraries and standards
- Testing, deployment, and verification tooling
When to bring one in
Companies usually bring in freelance specialists when a contract must be written, reviewed, upgraded, or fixed quickly. That includes new protocol launches, token sales, DAO voting logic, custody flows, or a Berlin product team that needs short-term help before an audit or release.
What strong specialists deliver
A strong professional writes clear, gas-aware code and tests every important path. They know how to limit access, handle failures, avoid reentrancy and upgrade traps, and document assumptions so other specialists can review the work safely.
Risks to manage
Smart contracts are hard to change once deployed, so review work matters as much as coding. Good experts trace edge cases, verify arithmetic, check admin controls, and align the contract design with the business process before anything goes on chain.
Fit for your project
Look for specialists who can work with product, security, and backend teams, not just write Solidity. In Berlin, many projects are run with a mix of onsite workshops and remote delivery, so clear English communication and practical blockchain experience matter.
Frequently asked questions
What clients ask us most about Smart Contracts — answered in short.
Smart contracts automate rules on a blockchain. Companies use them for token logic, escrow, governance, lending, swaps, royalties, and other workflows that need deterministic execution and public verification. They are most useful when the process must run without a central operator changing the result.
Bring in a smart contracts specialist when you need new contract logic, an upgrade, a security review, or support before deployment. They are also useful when your team has backend or product strength but lacks blockchain-specific experience. For Berlin teams, short-term help is common when a release window is tight or the work needs to move between onsite workshops and remote implementation.
A smart contract behaves more like shared infrastructure than a normal server-side service. It must be deterministic, transparent, and much harder to patch after launch. That changes how the code is designed, tested, reviewed, and documented.
A strong Smart Contracts freelancer usually brings Solidity or Vyper, EVM knowledge, testing tools like Hardhat or Foundry, and comfort with blockchain explorers and deployment scripts. Security review skills matter a lot, especially for access control, upgrade patterns, and token standards. Product thinking helps too, because the contract logic must fit real business flows.
For simple token or escrow work, a focused smart contracts expert may be enough. For DeFi, governance, or upgradeable systems, you need someone who has handled audits, edge cases, and deployment hygiene before. The more value locked in the contract, the more important proven review habits become.
Most smart contracts work can be done remotely because the deliverables are code, tests, and reviews. Berlin-based onsite sessions can still help at the start of a project, especially for workshops on product logic, security assumptions, and launch planning. Many teams use a hybrid setup.
A good Smart Contracts professional writes readable code, strong tests, and clear comments around risky logic. They should explain why a pattern is safe, where it can fail, and what assumptions the contract depends on. Good signs are careful handling of permissions, upgrades, events, and edge cases.
No. Smart Contracts work on Ethereum and other EVM chains is often written in Solidity, but some projects use Vyper for a narrower design style. The right expert should choose the language and tooling that fit the chain, security model, and team workflow.
The average hourly rate of freelancers in Berlin, Germany who have used Smart Contracts in their recent projects is 107 €, which corresponds to a daily rate of about 853 € based on an 8-hour working day.
Of the freelancers in Berlin, Germany who have used Smart Contracts in their recent projects, 100% hold at least a Bachelor's degree and 71% hold at least a Master's degree.
On average, freelancers in Berlin, Germany who have used Smart Contracts in their recent projects have 12 years of professional experience, with a single engagement typically lasting around 2.4 years.
The most common languages among freelancers in Berlin, Germany who have used Smart Contracts in their recent projects are German (100%), English (100%), and French (29%).
The most common industries among freelancers in Berlin, Germany who have used Smart Contracts in their recent projects are Information Technology (100%), Education (57%), and Banking and Finance (57%).
The most common business areas among freelancers in Berlin, Germany who have used Smart Contracts in their recent projects are Information Technology (100%), Product Development (86%), and Quality Assurance (86%).
Main locations of FRATCH Experts, who have recently used Smart Contracts
Our freelancers and interim experts are at home across the DACH region — available on-site in the major business hubs or fully remote. Choose a location to discover matched specialists, local market insights and up-to-date availability.
Countries:
Berlin 
Hamburg Munich Cologne Frankfurt Stuttgart Dusseldorf Leipzig Dortmund Essen Bremen Dresden Hanover Nuremberg Request a free demo
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Philipp Thomaschewski
FRATCH CEO
