Germán – React, Next.js, Typescript
Germán is a Senior engineer with 8 years of experience in blockchain, specializing in Ethereum-focused SDKs, smart contract integrations, and full-stack development with React, TypeScript, and Node.js.
He has a background as a Founding engineer, having mentored engineers, participated in technical hiring, and spoken at workshops and conferences. He demonstrates strong system design, database migration, and problem-solving skills, with a focus on building dApp infrastructure and client-side blockchain integrations.
10 years of commercial experience in
Main technologies
Additional skills
Direct hire
PossibleReady to get matched with vetted developers fast?
Let’s get started today!Experience Highlights
Founder
Side project. It's a data analytics web platform and Ethereum network indexer, providing on-chain interaction metrics for smart contracts and protocols, as well as competitor behavior, to generate insights into usage patterns, loyalty, and retention.
- Architected a full-stack Ethereum analytics platform with custom indexing pipelines and data models in ClickHouse/PostgreSQL.
- Built the back-end API and interactive dashboard for seamless on-chain data visualization.
- Created on-chain metrics to support competitor benchmarking, smart contract analysis, and user retention insights.
- Deployed production infrastructure on Hetzner using Docker containers and GitHub Actions CI/CD.
Senior Software Engineer
It's a multisig security platform for on-chain assets in the Ethereum ecosystem, with $50B+ in total value locked and $1T+ in total volume processed.
- Designed and launched the Safe{Core} Account Abstraction SDK supporting 100+ EVM chains and multiple partners.
- Served as a technical member of the Safe Grants Program committee.
- Led global workshops on Account Abstraction, created technical docs and demo apps, and coordinated with SDK/API teams.
- Integrated the Safenet transaction processor network into the Safe{Wallet} web application.
- Supported external companies building on the Safe ecosystem.
- Mentored team members on technology stack and business logic.
- Contributed to hiring and candidate selection processes.
Senior Software Engineer
It's a Blockchain infrastructure provider focused on creating tools to help expand the utility of the Ethereum ecosystem, having incubated companies such as Safe and CoW Protocol.
- Designed, architected, and implemented the Safe browser extension, integrating an EVM-compatible smart contract wallet into browsers.
- Built the Contract Proxy Kit and Safe{Core} Account Abstraction SDK.
- Contributed to the Safe{Wallet} web application implementation.
- Participated in hiring and candidate selection processes.
Software Engineer
Development and manufacture of electronic equipment adapted to the marine environment and focused on smart oceans and sustainable fishing.
- Maintained and expanded the in-house airtime billing system and daily reporting for customers and the tuna fishing fleet.
- Designed and migrated the airtime billing system to a desktop application.
Academic Intern
Development of advanced genomic software and diagnostic solutions with a leading focus on inherited cardiovascular diseases and personalized medicine.
- Completed Master's final project: automatic generator for estimating survival curves in patients with inherited cardiovascular diseases.
- Collaborated on the design and implementation of genetic analysis software for studying inherited cardiovascular diseases.