Software Engineer

Genesy AI is a Barcelona-based startup on a mission to revolutionize how B2B sales and prospecting teams operate. Our cutting-edge AI-driven lead generation technology empowers sales teams to focus on what truly matters: selling. By automating manual prospecting, we help optimize workflows, ensuring a predictable and scalable sales pipeline-no wasted time, just results.

After successfully raising €5 million in a landmark seed funding round, we are looking to grow our teams and scale in key markets.

We're growing fast and looking for a Software Engineer to join us at Genesy AI. You'll play a key role in building the systems and user experiences that power our sales-automation platform, from high-throughput backend workflows to performant, feature-rich web applications.

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.

• 3+ 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.

• Desire to work in a fast-moving startup environment.

• 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.

• Experience with Redis, Elasticsearch, Kafka, or third-party API integrations.

• 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.

• Competitive salary based on experience.
• Performance bonuses you won't find anywhere else.
• Flexible remuneration through Cobee.
• Short Fridays all year, plus extra vacation days (birthday + Geneversary).
• Two weeks of fully remote work from anywhere every August.
• Discount at a premium gym with spa access.
• Free fruit and coffee every day.
• Discount at a beachfront café with daily menu deals.
• Beachfront office with stunning sea views and direct beach access.
• Continuous learning opportunities (mentoring, workshops, conferences).
• Career growth with recognition for your impact.
• Team gatherings and celebrations.
• A collaborative culture based on transparency, teamwork, and respect.