Smart Contracts Experts in Berlin
matched in minutes by AIHire experts who design, test and audit self-executing blockchain agreements, connect them to Web3 applications and integrate wallets, oracles and token systems. FRATCH matches you precisely with vetted, available freelancers for focused delivery.
Meet FRATCH Experts in Berlin, who have recently used Smart Contracts
Thomas Ü.
Last position:
Head of Engineering - Midnight at IOG / Midnight
- Built and scaled a 35-member engineering team (Core Engineering, QA, and SRE) in 12 months, accelerating Midnight’s blockchain development on Parity’s Substrate framework.
- 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.
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, focusing 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, and SCA, and used ZAP for DAST in CI/CD pipelines.
- Delivered security awareness training and developed CTF challenges and training materials to improve developers' security knowledge.
- Planned and carried out 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 the detection, reporting, and remediation of hundreds of vulnerabilities.
- Triaged HackerOne reports.
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
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.
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.
Discover over 15,000 top freelancers
Statistics of experts using Smart Contracts
Aggregated from the professional profiles of matched freelancers.
Experience
13 years
Position duration
2.5 years
Positions per freelancer
7
Top business areas
Information Technology, Product Development, Quality Assurance
Top industries
Information Technology, Automotive, Education
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 29 Oct 2026.
Daily rate distribution
The chart shows how the daily rates of experts in this technology in Berlin 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 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 29 Oct 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%)
- Automotive (57%)
- Education (57%)
- Banking and Finance (57%)
- Professional Services (43%)
- Agriculture (29%)
- Energy (29%)
- Transportation (29%)
Please note that freelancers can work across multiple industries, so percentages overlap.
About the technology
Core function
Smart contracts are programs stored on a blockchain that execute agreed rules when their conditions are met. They can hold assets, validate transactions and trigger outcomes without a central intermediary. The code becomes part of the system’s operating logic, so clarity, security and controlled change are essential.
What they build
Companies use smart contracts for financial products, tokenized assets, digital ownership, automated payments and decentralized applications. Typical deliverables include:
- Token issuance, transfers and vesting logic
- Lending, exchange and escrow workflows
- NFT ownership, royalties and marketplace rules
- DAO voting and treasury controls
- Blockchain-based payment and settlement flows
Ecosystem and tooling
Strong specialists work across Solidity and, where relevant, Rust or Vyper. They understand EVM networks such as Ethereum and Layer 2 systems, plus contract libraries, wallet integrations and RPC providers. Testing often involves Foundry, Hardhat, OpenZeppelin, static analysis and test networks, with oracles used when contracts need trusted external data.
When to bring in expertise
Companies usually seek freelance support when a protocol needs a secure foundation, an existing contract needs review or a Web3 product must move from prototype to release. Specialist input is also valuable during migrations, upgrade planning and incident response. In Berlin, teams may combine on-site workshops with remote implementation across international product and security groups.
Delivery and security
A reliable professional translates business rules into small, understandable contract functions and defines permissions before writing code. They test expected and unexpected states, review gas use, document deployment steps and separate upgrade controls from everyday operations. Independent review, threat modeling and a clear response plan reduce the impact of defects that cannot be easily reversed.
Choosing a specialist
Look for evidence of audited contracts, reproducible tests and careful handling of private keys and deployment access. Ask how the professional manages reentrancy, oracle manipulation, access control, front-running and upgrade risks. Useful adjacent skills include backend services, cryptography, wallet flows, security reviews and user interfaces that explain irreversible blockchain actions clearly.
Frequently asked questions
What clients ask us most about Smart Contracts — answered in short.
Smart Contracts automate rules on a blockchain, such as transferring tokens, releasing escrowed funds or recording ownership. They are useful when several parties need a shared process that can be verified and executed without a central operator.
Smart Contracts provide shared, tamper-resistant execution across a blockchain, while a traditional backend usually runs under one organization’s control. Blockchain execution can improve verifiability and reduce reliance on intermediaries, but it adds transaction costs, public state and stricter limits on changes.
A strong Smart Contracts specialist often understands Solidity, EVM networks, wallet signing and token standards. Security testing, cryptography, backend integration, frontend transaction flows and oracle design are also valuable for complete delivery.
Smart Contracts work needs experience matched to the risk, not simply the scope. A token experiment may need focused implementation and testing, while financial logic or asset custody calls for security reviews, formal reasoning, deployment controls and incident planning.
Smart Contracts cannot safely read arbitrary external data by themselves. Oracles connect them to information such as prices, events or payment status, and the specialist must assess the oracle’s trust model, update process and failure behavior.
Smart Contracts projects can be delivered remotely when repositories, test environments and signing procedures are well controlled. Berlin-based teams may still prefer on-site workshops for product decisions, security reviews or coordination with legal and compliance stakeholders.
Review how the Smart Contracts specialist explains assumptions, permissions and failure cases. Look for clear tests, independent security review, documented deployments, reproducible builds and evidence that gas behavior and upgrade paths were considered.
A capable Smart Contracts freelancer may work with Ethereum and compatible EVM networks using Solidity, or with other ecosystems using languages such as Rust or Vyper. The right choice depends on security tooling, transaction behavior, interoperability needs and the users’ wallets.
The average hourly rate of freelancers in Berlin, Germany who have used Smart Contracts in their recent projects is 106 €, which corresponds to a daily rate of about 851 € 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 13 years of professional experience, with a single engagement typically lasting around 2.5 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%), Automotive (57%), and Education (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
