As a Tech Lead you will play a key role in shaping how we build and scale our product. You will work closely with a high impact engineering team, combining hands‑on development with tech leadership, architectural decisions and mentoring.

This is a hands‑on role: you will write code, set the technical direction for your area.

Your responsibilities:

- Guide and mentor engineers through code reviews, pairing, and technical discussions
- Write high‑quality, maintainable code across the stack, with a strong focus on system design and critical backend components
- Collaborate closely with Product and Design to turn requirements into solutions
- Lead design and architectural decisions in collaboration
- Take technical ownership of core parts of the platform

What we are looking for:





- Strong experience building production software
- Minimum 2 years experience acting as a Tech Lead or Lead Engineer
- Solid experience with React, Node.js and Typescript
- Good understanding of relational databases (PostgreSQL or similar)
- Experience working across the full product lifecycle
- Ability to work autonomously
- Experience making architectural decisions
- Enjoys working in a start‑up, scale up environment
- Fluent Spanish, English would be advantageous

Tech Stack: Typescript, NodeJs, React, PostgreSQL and AWS

Based in Barcelona along with a hybrid working model

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📌 Tech lead (Cataluña)
🏢 Ersilia
📍 Cataluña