Ruben Espinosa

CTO

Spain12 yrs 8 mos experience

AI EnabledAI ML Practitioner

Key Highlights

Expert in AI integration and scalable architecture.
Led engineering teams to deliver high-impact solutions.
Cofounded a successful B2B technology startup.

Stackforce AI infers this person is a SaaS expert with a strong focus on AI-driven solutions and scalable architecture.

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Skills

Core Skills

Artificial Intelligence (ai)Business StrategyAi & Machine LearningScalable ArchitectureDatabase ManagementTeam LeadershipSystem ArchitectureApi Development

Other Skills

Organizational LeadershipMachine LearningB2CComunicaciónDirección de equiposTrabajo en equipoArquitectura de la plataformaIA generativaDefinición de requisitosModelado de bases de datosBases de datosAdquisición de conocimientosArquitectura de sistemasProductos de datosPython

About

I lead with a hands-on approach that emphasises strategic oversight, deep technical expertise, and a commitment to building cohesive, collaborative teams. My leadership is driven by a passion for leveraging cutting-edge technologies, including artificial intelligence, to solve complex problems and innovate within the industry. I focus on aligning AI technology strategies with business goals, leading a team of talented engineers, and ensuring the delivery of robust, scalable, and innovative software products using agile methodologies. My aim is to create an environment where technological advancements, particularly in AI, drive growth and operational efficiency. Skill Set: Programming Languages: Python, Go, PHP, NodeJS. Architecture & Design: Advocate for Domain-Driven Design (DDD), utilising design patterns and hexagonal architecture to solve complex problems efficiently. AI & Machine Learning: Deep knowledge in developing and scaling AI solutions, machine learning models, and integrating AI with existing technology to enhance business outcomes. DevOps & CI/CD: Extensive experience in automating and optimising operations. Databases & Storage: Skilled in managing and scaling databases and storage solutions Infrastructure: Expert in architecting and managing complex, distributed systems

Experience

12 yrs 8 mos

Total Experience

1 yr 10 mos

Average Tenure

7 mos

Current Experience

Stealth startup

Engineering Lead

Nov 2025 – Present · 7 mos · Spain

Leading the engineering team, shaping the technical vision, and taking ideas from zero to MVP and beyond

Luzia

2 roles

VP of Engineering

Promoted

Apr 2025 – Nov 2025 · 7 mos

Leading multiple engineering teams (backend, data, AI, and infrastructure) to deliver high-impact, scalable solutions
Driving innovation in AI integration, performance optimization, and developer efficiency.
Established processes for technical excellence, reliability, and fast-paced delivery in a high-growth environment.
Remaining deeply hands-on with architecture, coding, and technical decision-making.

Organizational LeadershipArtificial Intelligence (AI)Business StrategyMachine LearningScalable ArchitectureB2C

Head of Engineering

May 2023 – Apr 2025 · 1 yr 11 mos

Led a team to develop robust, scalable software products.
Integrating AI technologies to enhance business outcomes.
Created the entire infrastructure from scratch, building a self-scaling, optimized system for over 60 million users.
Built and managed an engineering team

ComunicaciónDirección de equiposTrabajo en equipoArquitectura de la plataformaIA generativaAI & Machine Learning+1

Jobandtalent

Tech Lead & Principal Software Engineer

Feb 2022 – May 2023 · 1 yr 3 mos

Led a team in developing scalable solutions.

ComunicaciónDirección de equiposTrabajo en equipoDefinición de requisitosArquitectura de la plataformaModelado de bases de datos+6

Snyk

Tech Lead

Aug 2021 – Mar 2022 · 7 mos

Led the Snyk AWS integration team as a contractor of devaway_

Dirección de equiposTrabajo en equipoDefinición de requisitosArquitectura de la plataformaModelado de bases de datosBases de datos+4

Devaway_

Co-founder & Solutions Architect

Jul 2020 – May 2023 · 2 yrs 10 mos · España

Cofounded and exited a B2B technology company accelerating pre seed startups through critical early stages to funding.
Led MVP design and delivery, technology strategy, and security & architecture audits for early stage tech companies.
Embedded pre aligned, senior engineering teams into startups, significantly reducing time to market and technical execution risk.
Supported startups from inception to successful fundraising, with a structured exit post round, ensuring technical and team readiness for investors.
Acquired by Jobandtalent

Dirección de equiposDefinición de requisitosArquitectura de la plataformaModelado de bases de datosBases de datosAdquisición de conocimientos+3

Eventbrite

Tech Lead

Apr 2018 – Jul 2020 · 2 yrs 3 mos

Senior Software Engineering integrating 3rd parties.
Techlead in the SRE/Devtools team

Dirección de equiposTrabajo en equipoDefinición de requisitosArquitectura de la plataformaModelado de bases de datosBases de datos+4

Ticketea

Senior Software Engineer

Feb 2017 – Apr 2018 · 1 yr 2 mos

Software Engineer of 3rd party integrations platform team
API research of most important European platforms and integrations with the ticketea core
Acquired by Eventbrite

Definición de requisitosModelado de bases de datosBases de datosAdquisición de conocimientosProductos de datosAPI Development+1