Rebeca Murillo
EN·FR·ES

Product engineer · Forward deployed engineer · Software engineer · R&D — Lille, 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 keep development cost effective.

Selected work

Products, research platforms, and the pipelines that build them — 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 →
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 →
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

Engineer in an R&D lab at INRIA, contributing to EU innovation projects in operational research, optimization, and simulation. I build the platforms and demonstrations that turn research models into tools people can actually use.

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. High availability APIs serving 500K+ requests a day, with on call production duty.
  • AuchanAnalysis and maintenance of core retail systems, where the ERP is the business.
  • DecathlonFrom engineering apprentice to leading the customs domain, integrating web applications with SAP.

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

On the AI layer: I build on existing agent harnesses rather than custom code and API calls. More reliable, and the budget goes to the product.

  • 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 hold a full-time research position, so I don't take full-time engagements. I keep room for a small number of part-time consulting collaborations: AI development pipelines, agentic system architecture, and honest reviews of both.

When a project needs more than me, I work with a trusted network of senior freelancers — product design, specialised engineering — so the right people are in the room.

Client feedback — 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 →
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 →

Certifications & diplomas

Training runpassed · 2026

TDD, DDD & Clean Architecture — Python, with BDD

Wealcome · certification

Training runpassed · 2025

TDD & Clean Architecture — React / TypeScript

Wealcome · certification

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.