Rebeca Murillo
EN·FR·ES

Product engineer · Software engineer · Forward deployed engineer · Research and development — France

I used to write code. Now I build the systems that write it.

Lately, that means building products through AI development pipelines with coding best practices.

I'm a software engineer with over 12 years of experience. From idea to production, I enjoy building solutions that provide value. I leverage AI agents to accelerate the process while maintaining control and ensuring quality that meets product needs without blowing the token budget.

Selected work

Products that I have built or contributed to, including product conception, architecture, full-stack development and deployment. A selection from the past few years.

Les Martines — A social app creating connection and a safe space for women.
Les MartinesFounding engineer

A social app creating connection and a safe space for women.

lesmartines.app →
AssoBubbleFédération EMA · France

Keeps associations organized and volunteers engaged — members, trainings, day-to-day operations.

Launching soon
Home Risk — Helps homeowners in France understand their exposure to clay shrink–swell insurance risk.
Home RiskSustainable Finance Observatory · EU Horizon

Helps homeowners in France understand their exposure to clay shrink–swell insurance risk.

home-risk.eu →
Expomaison — Helps people find trusted companies and products for their building and renovation projects.
ExpomaisonTopDiffusion · Luxembourg

Helps people find trusted companies and products for their building and renovation projects.

expomaison.eu →
Homestore SV — Online store bringing home appliances to customers across El Salvador.
Homestore SVHomestore SV · El Salvador

Online store bringing home appliances to customers across El Salvador.

homestoresv.com →
Familio — Keeps a family running — chores, activities, and logistics in one calm place.
FamilioPersonal project

Keeps a family running — chores, activities, and logistics in one calm place.

Private

Research and Development

Research and Development Engineer at INRIA, contributing to EU Horizon and France ANR innovation projects in operational research, optimization, and simulation. I build platforms and demonstrations that turn innovation and research models into dynamic tools.

SUM Open Data Platform — Data-driven insight into how policy measures shape shared mobility and public transport integration across European cities.
SUM Open Data PlatformINRIA · EU Horizon

Data-driven insight into how policy measures shape shared mobility and public transport integration across European cities.

odp.sum-project.eu →
Optimization Research DemosINRIA · EU Horizon

Interactive demonstrations of optimization models — network design for bike-sharing systems and dynamic pricing for shared mobility.

View demos →

Background

Before building products with small teams, I spent eight years inside some of Europe's largest retailers. That's where I learned how systems behave at scale, and how to keep them running.

  • AdeoIdentity and access for 30M+ users across 13 business units (Leroy Merlin, Technomat...). High availability APIs serving 500K+ requests a day, with on call production duty.
  • Auchan FranceAs Business Analyst, maintenance of core retail systems and ERPs for supermarket operations. Planning of legacy Gold ERP migration to company's information system.
  • Emphisphere (RFID Decathlon)Full stack development and end to end testing of RFID solutions applied to logistics. Including RFID readers, web, mobile and Windows applications.
  • DecathlonFrom engineering apprentice and developer to leading the technical customs domain as Business Analyst and project manager. Participating in strategic projects to migrate web applications migration and connection to SAP Customs module.

Stack

Every layer of building software, and the tools I have used, tested, and shipped at each one.

FrontendVue.js · ReactAstroTypeScriptHTML · CSSBackendNode.js · ExpressJava · Spring BootKotlin · Vert.xPythonREST APIsDataPostgreSQL · Oracle SQLMongoDBBigQueryKafka · Pub/SubAI & agentsClaudeOllama · local modelsLiteLLM · LangfuseOpenClaw · opencodeHarness orchestrationInfrastructureAWS · GCPDockerCI/CD · GitHub ActionsServerlessQualityTDD · BDDDDD · Clean ArchitectureCypress · JestSoftware development

Click the nodes to explore · drag to pan · pinch or Ctrl+scroll to zoom

  • Frontend: Vue.js · React, Astro, TypeScript, HTML · CSS
  • Backend: Node.js · Express, Java · Spring Boot, Kotlin · Vert.x, Python, REST APIs
  • Data: PostgreSQL · Oracle SQL, MongoDB, BigQuery, Kafka · Pub/Sub
  • AI & agents: Claude, Ollama · local models, LiteLLM · Langfuse, OpenClaw · opencode, Harness orchestration
  • Infrastructure: AWS · GCP, Docker, CI/CD · GitHub Actions, Serverless
  • Quality: TDD · BDD, DDD · Clean Architecture, Cypress · Jest

Working together

I keep room for project based or part-time consulting collaborations: product engineering conception, full stack development and deployment / AI development pipelines and orchestration / process automation with AI / agentic system architecture.

When a project requires a complementary expertise, I work with a trusted network of senior freelancers (product design, specialised engineering) so the right people with the right skills are on the team.

Client feedback — verified on Malt

Javier · Sustainable Finance Observatory5.0/5 · Malt
We had the pleasure of working with Rebeca on a web application designed to assess financial risks for homeowners caused by clay shrink-swell soil events. From start to finish, she played a pivotal role in developing and deploying the application, integrating complex data sources. Rebeca demonstrated strong technical expertise in both architecture and implementation, ensuring seamless data integration and deploying the solution on AWS for optimal performance and scalability. She was highly adaptable, effectively addressing challenges as they arose and delivering innovative solutions. Throughout the project, Rebeca communicated clearly and collaborated effectively with our team. We highly recommend her for her technical expertise, problem-solving skills, and professionalism.
verified on Malt →
Rūta · EURAF5.0/5 · Malt
She consistently demonstrated professionalism, punctuality, and exceptional communication — incredibly flexible in adapting to our evolving needs, with clear, concise explanations throughout.
verified on Malt →
Jose · TopDiffusion5.0/5 · Malt
J’ai eu le plaisir de collaborer avec Rebeca, ingénieure en informatique pendant plus de cinq ans, et cette expérience a été remarquable à tous points de vue. Elle a constamment fait preuve d’une abnégation exemplaire, s’investissant avec sérieux et engagement dans chaque projet, y compris dans les contextes les plus exigeants. Sa ponctualité irréprochable, son sens aigu des responsabilités et sa fiabilité ont été des atouts précieux pour l’équipe et pour la réussite des missions qui lui ont été confiées. Sur le plan technique, ses compétences solides et toujours actualisées lui ont permis d’apporter des solutions efficaces, pertinentes et durables, tout en maintenant un haut niveau de qualité. Au-delà de ses qualités professionnelles, elle se distingue par une attitude constructive, une grande capacité d’adaptation et un réel sens de la collaboration. C’est une personne de confiance, sur laquelle on peut compter sans réserve, et que je recommande avec le plus grand enthousiasme pour toute mission ou responsabilité future.
verified on Malt →

Certifications & diplomas

Training run2026

TDD, DDD & Clean Architecture - Python, with BDD and AI agents

Wealcome · certification

View certificate →
Training run2025

TDD & Clean Architecture - React / TypeScript

Wealcome · certification

View certificate →
Foundationsgraduated ✓

Ingénieur Télécommunications
DUT Informatique

IMT Nord Europe · 2016
Université de Lille · 2013

Contact

Write to me here, or book a call if it's easier to talk.