Blockchain Experts in Berlin

• 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.

• Consulting in the SAP EAM module as part of the migration to EON's S/4 HANA oneERP system

• Review and cost estimation of customer-specific developments (e.g. cockpit for EAM orders, document flow display)

• Preparation of EAM classification data for technical objects (functional locations, equipment) for migration to new classes

• Developed healthcare and webinar platforms using React, Ionic and GraphQL.
• Built scalable frontend applications in close collaboration with designers and backend teams.

• Crypto quant strategy development, automated trade execution, onchain data client (Ethereum / Solana)
• Data and trade architecture development for liquidity provision

• 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.

• 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

• Establishing Identity & Directory Management as a new (split-off) team & product within the IAM cluster.
• Leading the “Identity & Directory Management” product (8 people) as Product Owner.
• Concept for ‘Digital Identities’, i.e. IDs with n users/accounts and strategy for a modernized product offering.
• Upgrading APIs, migrating to a containerized infrastructure, rolling out international markets & standardized solutions across the REWE enterprise group.
• Tech: OpenText™ (NetIQ) eDirectory & Identity Manager, LDAP, SAP HR/HCM, Docker/Kubernetes/Podman, REST APIs, Microsoft Active Directory & Entra ID, postgresDB, Keycloak, Ansible, Cyberark (PAM), Apache Kafka, Jira, Confluence, Miro.

• Founder of a consulting practice focused on digital transformation and emerging tech
• Built a proprietary framework for evaluating technology startups based on multi-dimensional criteria
• Provide services to clients on matters related to integrating emerging technologies into their business
• Articulate digital transformation strategies and support in the execution activities
• Advise clients on investment opportunities in technology startups using a proprietary startup evaluation framework
• Advise various funds on investment opportunities in the Blockchain and Crypto space
• Speaker on topics related to blockchain, crypto, and digital transformation

Skills: Private5G, Strategy&Execution, Sales, PartnerManagement, NewLogos, BrandAwareness

• Defining product vision and go-to-market strategy for new AI-powered features
• Conducting user research and market validation
• Building outcome-driven roadmaps aligned with business objectives
• Coordinating engineering, design, and sales teams
• Establishing product processes and team workflows
• Helping companies navigate product pivots, scale operations, and implement data-driven product development practices

• Shipped Memorable, a production iOS app using on-device CLIP-based semantic photo search. Owned the full stack: Core ML conversion, local inference pipeline, App Store release, and post-launch iteration.
• Built a practical AI deployment framework that covers workflow redesign, use-case prioritization, system integration, eval planning, and human-in-the-loop controls.
• Conducting AI use-case discovery and advisory conversations with professionals in legal, tax, and real estate sectors.

• Defined and executed the end-to-end vision for Allride’s core mobility product, launching a fully functional mobile app on iOS and Android in under 3 months.
• Led product from 0 to 1 crafting roadmap, aligning teams, and driving execution to meet user needs and business objectives.
• Built a tiered S/M/L/XL subscription model based on mobility usage, launching the first MVP with built-in rewards and coupons to drive adoption of Allride’s recurring plans.
• Designed and implemented a high-conversion referral program that rewarded both referrers and invitees, driving 12% of new user acquisition through organic growth loops.
• Developed and launched Allride for Work, a B2B mobility benefit solution that enabled companies to offer sustainable commute plans to employees, driving corporate adoption and unlocking a new recurring revenue stream.
• Aligned product initiatives with sustainable mobility goals, contributing to rapid growth and early media coverage.

• Owned full product design cycle: from product discovery, validating hypothesis, prototyping and testing, to implementation of production–ready code.
• Built production–ready frontend, extending ownership beyond design into delivery to close the gap between design and real outcomes.
• Turned complex financial and blockchain data–heavy problems into clear experiences where users make decisions in real–time.
• Transformed design system to an infrastructure layer giving the team easy access to testing ideas quickly with vibe coding, streamlined production cycles and improved overall consistency of all products.