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Backend Engineer - Marketing Technology

Proton
CompanyProton
CategoryEngineering
LocationLondon; Paris; Prague
RemoteOn-site (inferred)
EmploymentNot stated
LevelNot stated
SalaryNot stated by the employer
Posted10 Nov 2025
Last verified3 Aug 2026
SourceEmployer career page (greenhouse)
Applications are handled by the employer, not by us.Apply on the employer's site →
Description
Join Proton and build a better internet where privacy is the default Proton was founded in 2014 by scientists from CERN on a simple truth: privacy is a fundamental human right . Since then, we’ve built the world’s largest encrypted email service (Proton Mail) and expanded into Proton VPN, Proton Drive, Proton Pass, and Proton Calendar—tools used by millions globally to protect their freedom, fight censorship, and keep their data safe. In some situations, Proton has literally helped save lives! We are profitable, independent (no VC control), and selectively hire from the top ~1% of applicants. Our 500+ team members across 50+ countries come from leading organizations and elite academic backgrounds. We move fast, keep hierarchy light, and prioritize impact over optics. If you want to do meaningful work with exceptionally high-caliber people, this is it. Join us and do work you can truly be proud of. Check our open-source projects  here ! Purpose of the role As a Backend Engineer in Marketing Technology you will be responsible for building our key components of our marketing technology stack. You will drive software design and implementation likewise while helping a newly formed cross-functional team. You will interact with key stakeholders in the Business Units, Software Development, Marketing, Sales and more to understand requirements and use cases while keeping the bigger picture in mind. If you’re a self starter and results-driven backend engineer, and you thrive in a fast-paced environment, this is a great opportunity to play a pivotal role in a fast-growing company. You will have a concrete impact on the future of the business as a whole. What you will do Research, plan, scope, evaluate and implement our MarTech stack using Python and PHP Help and train the engineers of our business units to integrate sdk's we provide Own MarTech maintenance, including updates, enhancements, security, and privacy of the systems Help teams identify where technology can help increase conversion, efficiency and user experience Be a point of contact when it comes to technical solutions in the MarTech space and be the key person when it comes to technical questions about the stack Job requirements Demonstrable experience in building high-quality systems Experience building scalable solutions with Python or PHP Solid understanding of SQL Solid understanding of HTTP/REST, including both developing and consuming Web-based APIs Proven capability in integrating different in-house built systems with off the shelf products A curious, passionate, and growth-oriented mindset Strong interpersonal and communication skills. Ability to build strong relationships with cross-functional stakeholders and influence at all levels of the organisation Proven ability to manage multiple projects and priorities, and deliver high-quality software solutions on time and on budget Ideally you already had some touchpoints with marketing technology in the past.   What We Offer Work that Matters:  millions of people trust Proton with their privacy. We answer only to our users — not advertisers, not investors with conflicting agendas, not governments. The work you do here is real, and the impact is measurable. (read more about our impact here ) Work with smart and dedicated people -  Our team is diverse, collaborative, and tight-knit with people coming from all walks of life, including many of the world’s top academic institutions and organizations, such as MIT, Harvard, Stanford, Caltech, Cambridge, and ETH. Technology:  you'll get the right hardware and the right software you need to do your best work. Learning & Development:  we invest in your growth because sharp people make us better. Proton is one of the fastest ways to accelerate your career because you'll be th
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