Curriculum vitae / 2026
Senior engineering across backend systems, identity, and smart-contract protocols.
Java/Kotlin backend depth, TypeScript product delivery, and Solidity/Foundry protocol engineering - backed by years of production-critical industrial automation. I build systems where state, permissions, money, integrations, and failure behavior have to remain understandable under real operational pressure.
Professional experience
Production ownership across software and real-world systems.
The common thread is not a framework. It is explicit state, reliable boundaries, operational evidence, and taking responsibility beyond the implementation itself.
Jul 2023 - Present
A3M Global Monitoring GmbH
Senior Backend / Full-Stack Engineer
Remote - Germany / Spain- Build and maintain production Java 17/Kotlin and Spring Boot 3 services, secure REST/OpenAPI contracts, PostgreSQL models, and administration systems for business-critical monitoring and identity products.
- Design distributed integration workflows across REST, JMS, and Apache ActiveMQ Artemis with retries, scheduled processing, explicit intermediate states, idempotency, ordering-sensitive behavior, and operational traceability.
- Engineer security-sensitive IAM capabilities with Keycloak, OAuth 2.0/OIDC/JWT, external identity providers, organization-aware provisioning, claim and role synchronization, token policies, and custom authentication/authorization behavior.
- Own changes end to end: requirements clarification, architecture, implementation, migrations, automated testing, code review, GitLab CI/CD, Docker delivery, rollout, production troubleshooting, root-cause analysis, and durable fixes.
- Java 17
- Kotlin
- Spring Boot 3
- PostgreSQL
- Keycloak
- JMS / Artemis
- Docker
- GitLab CI/CD
Aug 2022 - Dec 2024
defdone / BlockBites
Full-Stack & Web3 Developer
Remote - parallel collaboration- Delivered React/TypeScript and Node.js product features, backend APIs, data integrations, wallet connections, smart-contract interactions, transaction workflows, KYC/user verification, and third-party service integrations.
- Contributed to Casper ecosystem products including a multi-source ecosystem platform and Fondant, a Docker/CCTL-based local blockchain developer environment with deploy inspection, RPC access, logs, and developer tooling.
- Worked across frontend, backend, and blockchain boundaries with emphasis on secure authorization, observable transaction states, validation, documented APIs, automated delivery, and maintainable user workflows.
- TypeScript
- React
- Node.js
- Express
- PostgreSQL / MongoDB
- Web3
- Wallets
- Casper tooling
2014 - Jun 2023
Automotive manufacturing - Ford, Gestamp, SEAT and others
Software & Automation Engineer
Europe- Programmed, commissioned, debugged, and supported production-critical automation in international manufacturing environments where uptime, deterministic behavior, safety, and controlled recovery were non-negotiable.
- Applied process modeling, state-machine thinking, root-cause analysis, cross-functional coordination, and evidence-driven troubleshooting - habits that now shape backend and protocol engineering decisions.
- Industrial automation
- Commissioning
- Production systems
- Root-cause analysis
- Safety & reliability
Technical capabilities
Deep where production risk lives. Broad enough to own the workflow.
Backend & APIs
Production JVM services and maintainable application boundaries.
- Java 17
- Kotlin
- Spring Boot 3
- Spring MVC
- REST / OpenAPI
- JPA / Hibernate
- QueryDSL
- Gradle
- Third-party integrations
Data & distributed systems
Explicit state, reliable processing, and operationally understandable failure handling.
- PostgreSQL
- SQL
- Schema design
- Flyway / Liquibase
- JMS
- Apache ActiveMQ Artemis
- Caching
- Retries
- Idempotency
- State machines
- Traceability
Security & identity
Authentication and authorization where organization, token, and federation boundaries matter.
- Keycloak
- OAuth 2.0
- OpenID Connect
- JWT
- RBAC
- Identity federation
- External IdPs
- Organization-aware authorization
- Security remediation
Smart contracts & DeFi
Protocol engineering with explicit accounting, trust boundaries, and adversarial validation.
- Solidity
- Foundry
- OpenZeppelin
- ERC-4626
- EIP-712
- ERC-1271
- DeFi integrations
- Access control
- Fuzz testing
- Stateful invariants
- Threat modeling
Product & frontend
Enough product breadth to own the whole workflow, not just the service boundary.
- TypeScript
- React
- Next.js
- React Native
- Expo
- Node.js
- Wallet flows
- wagmi / viem
- Transaction UX
Delivery & quality
Engineering ownership through test, delivery, rollout, and production evidence.
- Docker
- GitLab CI/CD
- GitHub Actions
- JUnit
- Mockito
- Vitest
- Integration / API testing
- Observability
- Incident analysis
- Technical documentation
Selected engineering evidence
Public work that makes the claims inspectable.
These projects are deliberately different: protocol accounting, signed-intent design, live product ownership, and a real operational workflow modeled on-chain.
DeFi protocol infrastructureFlagship DeFi
Adaptive Yield
DeFi protocol engineering where ERC-4626 accounting, external-strategy trust boundaries, liquidity, risk constraints, and adversarial testing have to agree before any capital is considered.
- Solidity
- Foundry
- OpenZeppelin
- ERC-4626
- Aave V3
Signed-order protocolFlagship protocol
OrderForge
Signed-order protocol engineering where cryptographic intent, lifecycle state, settlement math, and adversarial testing all have to agree.
- Solidity
- Foundry
- OpenZeppelin
- EIP-712
- ERC-1271
Production mobile productFlagship production
CookingPro
Production restaurant operations and customer ordering across three mobile applications.
- React Native
- Expo
- TypeScript
- Android
- iOS
Smart contractsHackathon winner
Turnaround Checklist dApp
Aviation turnaround operations modeled as on-chain workflows.
- Solidity
- Next.js
- TypeScript
- Camino Network
- IPFS
Education & development
Engineering foundation + continuous software specialization.
Nov 2025 - Present
Master in Blockchain Development
Blockchain Accelerator
Advanced smart-contract, DeFi, protocol, and blockchain engineering program2021 - 2023
Full Stack Developer
OpenBootcamp
Full-stack software development program2012 - 2015
Industrial Automation & Industrial Electronics Engineering
Universitat Politecnica de Valencia (UPV)
Engineering degree2006 - 2009
Technical Industrial Engineer - Industrial Electronics
Universitat Politecnica de Valencia (UPV)
Engineering degreeThe short version
Backend depth. Protocol rigor. Production ownership.
I am strongest where a system has real consequences when state, identity, integrations, or money are wrong - and where the engineer is expected to own the path from design to production evidence.