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Senior Frontend Engineer - React/Typescript

Sosafe

Lisbon, Lisbon, Portugal permanent

Posted: January 23, 2026

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Quick Summary

We're building the tech foundation that powers accessible, personalized, and localized learning at scale. Our mission is to enable teams to turn content into engaging, reusable learning experiences – AI-assisted, fast to produce, and ready for delivery in multiple formats, from interactive modules to microlearnings.

Job Description

Senior Frontend Engineer - Learning Technology

We’re building the tech foundation that powers accessible, personalized, and localized learning at scale. Our mission is to enable teams to turn content into engaging, reusable learning experiences – AI-assisted, fast to produce, and ready for delivery in multiple formats, from interactive modules to microlearnings. With a strong focus on accessibility, performance, and internationalization, we help bring tailored learning to users across the globe—faster than ever before.

Here's how you'll make a difference:

• Lead the development of new features and user experiences from concept to deployment

• You think in outcomes, not just implementation, and care deeply about user experience and impact

• Design and build scalable, modular frontend architecture

• Ensure quality through unit tests, e2e tests, and contract testing

• Monitor and improve performance, accessibility, and reliability using tools like Sentry, Datadog, etc.

• Collaborate cross-functionally in a modern Agile/Scrum environment

• Help shape our CI/CD pipelines and contribute to DevOps practices

• Mentor and support teammates through code reviews, pair programming, and architecture discussions

What makes you a great fit

• 5+ years of professional frontend experience, with 3+ years in React + TypeScript and Node.js

• Experience building or integrating AI-powered features into user-facing products

• Strong knowledge of frontend testing strategies (unit, integration, e2e, contract testing)

• Comfortable working with (or contributing to) AI-assisted tooling like GitHub Copilot or Cursor

• Experience working with observability tools like Sentry, Datadog, or similar

• Familiarity with CI/CD processes and DevOps practices

• Bonus: Experience with AWS, Kubernetes

• Strong communication skills in English

• Track record of working in fast-paced, agile environments (SaaS background preferred)

What we offer*

• Work/Life balance: Flexible hours, 33 vacation days

• Wellbeing and financial support: Access to Open Up, corporate discounts

• Connection & community: Virtual events, collaborative team activities, and opportunities for local meet-ups

• And the list goes on: Tech equipment, referral bonuses, dog-friendly HQ

*Perks and benefits listed above are for full-time employees and may vary slightly by office location. These are just a sample — you'll learn more during the interview process.

About Us

At SoSafe, we’re on a mission to make the digital world safer by addressing the human factor in cybersecurity. As one of the fastest-growing security awareness scale-ups worldwide, we leverage behavioural science and data-driven learning to empower people against cyber threats. Our Human Risk Management approach helps organisations turn their employees into their strongest line of defence.

Backed by leading VCs like Highland Europe and Global Founders Capital, we’re rapidly expanding across the globe. We’re looking for team players who want to drive meaningful change in cybersecurity, take ownership of their work, and grow with us.

If you thrive in a vibrant, purpose-driven environment that values innovation, diversity, and collaboration, then this is the place for you!

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