Job description

Fullstack Developer | ComparaJá.pt – Lisbon (Hybrid)

About Us

ComparaJá.pt is a leading platform for aggregating and comparing financial products and services in Portugal. Founded in 2015 as part of the CompareEuropeGroup, we are now part of Samlino Group (samlinogroup.com). Operating across five European markets, our group empowered over 10 million users last year alone.

At ComparaJá.pt, our mission is to help Portuguese consumers make informed, confident decisions across all areas of personal finance—whether banking, insurance, or utilities—by providing easy access to unbiased, accurate information and free comparisons. Our vision is to become the go-to personal finance platform for consumers, partners, media, and other stakeholders, helping people identify and choose the best solutions for their needs—saving time and money in a simple and transparent way.

Job Summary

We’re looking for a Fullstack Developer with a backend focus to help us evolve and maintain our internal tools and systems. You’ll play a key role in building robust, scalable back-end services and supporting operational applications that power our business.

This role is ideal for someone who enjoys backend problem-solving but is comfortable contributing across the stack in a collaborative, fast-paced environment.

Key Responsibilities

Develop and maintain backend systems, APIs, and data models for internal tools
Implement responsive web interfaces based on UX and design specifications
Build scalable solutions to support growing data volumes and operational complexity
Collaborate with the product team to implement integrated features
Optimize applications for speed, SEO, and cross-device performance
Participate in feature planning and interface evolution
Identify and fix bugs or performance issues across the stack
Write clean, well-documented, and testable code