Senior Product Engineer

Samaipata; Barcelona; On-site; EUR 70,000 - 110,000; Full time

Benefits offered by this job

Competitive salary

Performance bonuses

Flexible remuneration via Cobee

Short Fridays all year round

Birthday and Geneversary days

Gym discount

Free fruit

Free coffee

Continuous learning and career growth

Team gatherings and celebrations

Job summary

Enginy is building an AI-native GTM platform for modern B2B teams in Barcelona. You will lead from the code, set technical direction, and help define how Enginy builds as the company scales.

You'll join early enough to shape architecture, standards and culture as customer demand creates engineering challenges. Senior Product Engineer will own backend and frontend areas, collaborate with cross-functional teams, and ship end-to-end functionality with high quality and reliability.

Qualifications

• 4+ years of professional software engineering experience (Backend, Frontend, or Full-Stack).
• Strong experience with TypeScript and either Node.js or React.
• Solid understanding of modern API design, async workflows, or web architectures.
• Experience working with relational databases (PostgreSQL or similar).
• Ability to work autonomously, debug complex issues, and ship high-quality code.
• Strong communication skills and an advanced level of English.

Responsibilities

• Build and maintain scalable, reliable services powering our core engine.
• Work with async architectures, data pipelines, and workflow orchestration (Temporal).
• Design and implement production-grade APIs and integrations with external platforms (CRMs, LinkedIn, and more).
• Optimize performance, debug complex issues, and ensure strong observability.
• Develop high-quality, responsive web applications using React + TypeScript.
• Own customer-facing dashboards, campaign builders, reporting UIs, and supporting API layers.
• Work on internal tools, SSR/edge rendering, and lightweight Node.js services.
• Focus on performance, Core Web Vitals, and developer experience.
• Collaborate closely with Product, Design, and Engineering teams.
• Ship end-to-end functionality with a clear focus on quality, reliability, and speed.
• Help shape engineering practices, code quality, and architecture as we scale.

Skills

TypeScript

Node.js

React

Relational databases

Job description

The next great GTM company is being built in Barcelona

At Enginy we’re building the AI-native GTM platform for modern B2B teams, combining prospecting, enrichment, intent signals, AI research and outreach into one product so sales teams can focus on what truly matters: selling. No wasted time, just results.

We are one of Southern Europe's fastest-growing companies, ranked #3 in the Sifted 100: Southern Europe 2026, and we're just getting started. After raising a €5M seed round, we're scaling internationally and growing the team behind the product. That means more users, more data, more integrations and harder engineering problems exactly at the stage where strong technical leadership has an outsized impact.

We're looking for a Senior Product Engineer who wants to build great software and great engineering teams. You'll lead from the code, set the technical direction for your team, and help define how Enginy builds as the company scales. You'll join early enough to shape the architecture, standards and culture at a stage where customer demand already creates real engineering challenges.

What You’ll Do

Depending on your background and strengths, you will take ownership across one or more of the following areas:

Backend

• Build and maintain scalable, reliable services powering our core engine.
• Work with async architectures, data pipelines, and workflow orchestration (Temporal).
• Design and implement production-grade APIs and integrations with external platforms (CRMs, LinkedIn, and more).
• Optimize performance, debug complex issues, and ensure strong observability.

Frontend

• Develop high-quality, responsive web applications using React + TypeScript.
• Own customer-facing dashboards, campaign builders, reporting UIs, and supporting API layers.
• Work on internal tools, SSR/edge rendering, and lightweight Node.js services.
• Focus on performance, Core Web Vitals, and developer experience.

Cross-functional

• Collaborate closely with Product, Design, and Engineering teams.
• Ship end-to-end functionality with a clear focus on quality, reliability, and speed.
• Help shape engineering practices, code quality, and architecture as we scale.

What We’re Looking For (Must-Have)

• 4+ years of professional software engineering experience (Backend, Frontend, or Full-Stack).
• Strong experience with TypeScript and either Node.js or React.
• Solid understanding of modern API design, async workflows, or web architectures.
• Experience working with relational databases (PostgreSQL or similar).
• Ability to work autonomously, debug complex issues, and ship high-quality code.
• Strong communication skills and an advanced level of English.

Nice-to-Have

• Experience in early-stage or fast-scaling startups.
• Familiarity with workflow engines (e.g., Temporal), distributed systems, or microservices.
• Knowledge of UI performance optimization, design systems, or a11y testing.
• CI/CD practice with GitHub Actions.
• Interest in B2B SaaS, sales tech, or automation tools.
• Basic exposure to full-stack work, even if your focus is mainly Backend or Frontend.

Hiring process

We’ve designed our hiring process to be close to real engineering work. We try to avoid trivia-heavy interviews and artificial take-home exercises, and instead focus on how you think through product problems, technical trade-offs, ambiguity, quality, and the use of AI as part of modern engineering.

One of our tech leads wrote more about the philosophy behind the process here: https://oriolcastro.me/posts/hiring-for-modern-engineering/

In practice, you can expect:

• A first conversation to understand your background, goals, and what kind of environment helps you do your best work.
• A short practical task based on a small version of our product, where we care about prioritization, scope, reasoning, and delivery within constraints. You’re welcome to use AI tools, as you would on the job.
• A technical/product conversation focused on realistic engineering problems, not stack trivia.
• A final conversation to align on team fit, expectations, and next steps.

We aim to keep the process practical, transparent, and respectful of your time. If you reach the technical task stage, we’ll review your work carefully and give thoughtful feedback.

What We Offer

Competitive salary tailored to your experience.

Enticing performance bonuses that you won’t see anywhere else.

Flexible remuneration through Cobee.

Short Fridays all year round and extra days of vacation for your birthday and Geneversary.

A discount on a premium gym (with spa access) just a step away.

Free fresh fruit to help you care for your health.

Free coffee to keep you energized.

Continuous learning including but not limited to mentoring, coaching, workshops, and opportunities to attend SaaS conferences.

Career growth opportunities as we won’t let your dedication and results go unnoticed.

Team gatherings and celebrations because we love to build connections and celebrate achievements together.

A collaborative culture because we foster hard work, teamwork, transparency, and respect, encouraging open communication and a positive environment where your voice matters.

If you're not sure you meet 100% of the requirements — we still want to hear from you.

Research shows that candidates from underrepresented groups often self-select out even when they're a strong match. If this role excites you and you believe you can make an impact at Enginy AI, we encourage you to apply.

Ready to shape the future of B2B sales with us? Let’s build something great together!