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 discussionsWrite high‑quality, maintainable code across the stack,



with a strong focus on system design and critical backend componentsCollaborate closely with Product and Design to turn requirements into solutionsLead design and architectural decisions in collaborationTake technical ownership of core parts of the platformWhat we are looking for:Strong experience building production softwareMinimum 2 years experience acting as a Tech Lead or Lead EngineerSolid experience with React, Node.js and TypescriptGood understanding of relational databases (PostgreSQL or similar)Experience working across the full product lifecycleAbility to work autonomouslyExperience making architectural decisionsEnjoys working in a start‑up, scale up environmentFluent Spanish, English would be advantageousTech Stack: Typescript, NodeJs, React, PostgreSQL and AWSBased in Barcelona along with a hybrid working model
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📌 Tech Lead (Barcelona)
🏢 Ersilia
📍 Barcelona