About Miguel
Senior Python Backend Engineer with 6+ years of experience designing, building and maintaining backend systems, APIs, integrations and platform tooling in technically complex environments.
I have worked across fintech, trading, blockchain, data architecture, telco and AI-assisted software modernization, contributing to projects where reliability, scalability and clear technical design are essential.
My core experience includes:
• Python backend development with Flask and FastAPI
• REST API design, internal services and system integrations
• PostgreSQL, SQLAlchemy, data modeling and query optimization
• Trading systems, automation, market-making tooling and real-time market data
• WebSockets, Kafka, microservices and event-driven architectures
• Blockchain infrastructure, explorers, protocol indexing and smart contract tooling
• AI/LLM-assisted platforms for legacy code analysis, documentation and modernization
I enjoy working on complex technical problems, understanding the domain before building, and designing solutions that are reliable, maintainable and easy to evolve.
I am currently open to remote Senior Python Backend Engineer opportunities, especially in backend architecture, API design, platform engineering, trading systems, blockchain infrastructure, DeFi, AI platforms and developer tooling.
Spanish
Native or bilingual
English
Fluent
Remote only
Primarily works remotely
Experience
- LuxoftSenior Python EngineerTECHJanuary 2026 - June 2026 (5 months)Elche, SpainWorked on an AI-assisted modernization platform focused on legacy code analysis, technical documentation generation and migration support.Key contributions:
- Developed Python backend tools and platform features for code analysis, documentation and modernization workflows.
- Worked with LLM-assisted processes to analyze legacy codebases, extract technical behavior and support migration to target technologies.
- Validated AI-generated outputs from a technical perspective, checking extracted logic, documentation and modernization results.
- Improved backend services, integration flows and developer-facing tooling in an enterprise software modernization environment.
- Paradigma DigitalSenior Python EngineerTECHNovember 2024 - January 2026 (1 year and 2 months)Elche, SpainThis one was a short-term project.
- Contributed to a short-term backend modernization project for the O2 mobile application, designing contract-first APIs and service orchestration flows.
- Built Python services for telco integrations, authentication, validation and maintainable service boundaries.
- Genlayer LabsSenior Python EngineerSOFTWARE PUBLISHINGNovember 2024 - October 2025 (11 months)Elche, SpainWorked on blockchain infrastructure for GenLayer, a protocol focused on intelligent contracts, decentralized execution and validator-based consensus.Key contributions:
- Built backend and indexing components for GenLayer Explorer, exposing transactions, accounts, validators, consensus events and execution states.
- Designed SQLAlchemy models and PostgreSQL schemas for blockchain, protocol and consensus data.
- Implemented smart contract event listeners for staking, validator activity and protocol events.
- Worked with Hardhat, Docker, deployment scripts, snapshots and state restoration workflows for local blockchain testing and debugging.
- Built an adaptive AMM / market-making MVP using GenLayer technology.
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Education
- Master en Desarrollo Blockchain, Programación blockchainConquer Blocks• The Master's in Blockchain Development is a specialized, long-term course designed to transform students from "beginners" to "experts" in • Blockchain development. • It covers everything from understanding how Ethereum's EVM works and the fundamentals of Blockchain technology to the creation and • Deployment of smart contracts, integration, and implementation of the technology into decentralized applications (DApps). • Moreover, it not only focuses on the Solidity programming language but also on developing tools and software aimed at Blockchain technology • Using Python, JavaScript, and React, among others.
- Certificado Profesional en Ciencias de la Computación para Programación Web, Programación informáticaHarvard University2021• Presented and successfully completed all course problems and projects, including the final project submission. • Gained a broad and solid understanding of computer science and programming. • Improved the ability to think algorithmically and solve programming problems efficiently. • Learned how to develop and present various projects independently. • HTML, CSS, Git, Python, Django, SQL, Models and Migrations, JavaScript, User Interfaces, Testing, CI/CD, Scalability, and Security.