proton

Backend Engineer (Payments)

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At a Glance

Location
Barcelona; London
Posted
2026-03-03T08:37:40-05:00

Key Requirements

Required Skills

MySQLRedisSQL

Benefits & Perks

Health Insurance

fits: Comprehensive health insurance plans, competitive retirement savings o

Requirements

Proven experience with back-end development

Expertise in building scalable, high-performance solutions

Proficiency with profiling techniques and performance optimization tools

Experience leading a team initiative from discovery to production

Strong understanding of SQL (MySQL preferred) and data modeling best practices

Familiarity with Redis or other caching technologies for performance optimization

Compensation & Benefits

Office First:

Collaboration is easier and more effective in person, which is why we have offices in Geneva, Zurich, Prague, Barcelona, Paris, London, Vilnius, Skopje, and Taipei. You can also enjoy working from home up to 30% of the time, while enjoying great company during our three core days in the office.

Technology:

We provide all the devices and software you need to excel in your role, ensuring you have the best tools at your disposal to achieve your goals.

Food:

Lunch and snacks are provided by Proton every day at our offices.

Responsibilities

Build features in all of Proton's products.

Close interactions with products and engineers across the company.

Build scalable software architecture through software engineering best practices.

Optimise user experience and design.