Senior Backend Engineer, Payments

SENIOR BACKEND ENGINEER PAYMENTS

Stockholm On-Site Full-Time Immediate Start

Who We Are

We are a well-funded early-stage technology company on a mission to fundamentally redefine the way the world searches discovers and transacts built on a philosophy that puts the user first at every step.

The user is not simply a means of transaction. They are a valued participant whose data works for them not against them enriching their world and their own experience within it with them retaining full control.

Our mission is underpinned by proprietary patent-pending technology built on a novel engine and system.

The Problem You Will Be Solving

The internet was built to inform the many not to serve the individual. Platforms optimize for engagement extraction and consumption at global scale. AI has made this model even more efficient with the user still largely remaining the input not the full beneficiary.

The problem is not information. The world has never had more. The problem is that people give away a lifetime of data without receiving the personalized experience it should enable.

People should not have to search. They should simply find.

Who You Are

Highly talented and motivated to build products with people for people

You thrive in zero-to-one environments and find genuine satisfaction in creating from scratch

A fast-paced thinker with a relentless desire to learn improve and raise the standard around you

Able to inspire elevate and collaborate; you make the people around you better

A great communicator; you express complex ideas with clarity precision and confidence across all levels of the organization

Able to transform ideas into working systems and technical milestones with light speed and precision

Highly ambitious and action-driven; you thrive under pressure and find genuine energy in working at the edge of what is considered possible

Capable of designing and building production-grade systems in a fourth of the time most experienced and sane professionals would consider possible

What You Will Do

Design and build payment orchestration infrastructure with intelligent routing retry logic and reconciliation across multiple external and in-house providers

Build robust transactional architecture that manages complex end-to-end flows from initiation to confirmed state with comprehensive failure handling

Integrate with third-party commerce and service APIs through clean abstractions that shield the rest of the platform from integration complexity

Build digital wallet and balance management systems with high standards for accuracy transaction history and regulatory auditability

Design and build enterprise billing and accounting systems that produce correct outputs at scale with strong audit trails for internal and external compliance

Build foundational data models and event logs that ensure the entire transaction layer is fully replayable auditable and recoverable from any failure state

Minimum Qualifications

Meaningful industry experience inside a payments or fintech company; Klarna iZettle Adyen Trustly Brite Payments or an organization of equivalent domain standing

Complete operational understanding of payment flows; every stage from authorization to reconciliation and the engineering decisions each stage requires

Working knowledge of PCI DSS applied in practice at the application and infrastructure level

Idempotency and correctness as default engineering habits applied from the first line of a new system not added later

Preferred Qualifications

MSc in Computer Science or Software Engineering

Experience with distribution commerce and service platform API integrations

Demonstrated track record of delivering payment infrastructure at a pace and quality that distinguishes you in the domain

38 years of payments or fintech infrastructure experience

What We Offer

Expect the most talented rigorous and driven colleagues you have worked with; people who lift each other up and hold each other to the highest standard. This company is driven by ideas and innovation regardless of age position or background. The best ideas must win and the people behind them recognized and rewarded.

A home for exceptional people and geniuses within their domain; those who have always known what they are capable of and have been waiting for the environment to prove it to the world whilst first being seen and supported by their coworkers.

Compensation includes an attractive salary and meaningful equity ownership for an early-stage startup.

Equal Opportunity

We are an equal opportunity employer committed to building an inclusive high-performance culture where everyone can do their best work and reach their full potential. We welcome applicants of all backgrounds and do not discriminate on the basis of race color religion national origin gender gender identity or expression sexual orientation age disability or any other characteristic protected by applicable law.

Application

To apply send your CV/resume with direct references GitHub profile LinkedIn profile and a brief note on how and why you would like to contribute to our mission to . Upon initial acceptance an in-person interview will follow shortly in Stockholm Sweden.

Please note that all applications and interviews are conducted in English. Fluency in written and spoken English is a requirement for all roles.

All applications are treated with strict confidentiality.

Required Experience:

Senior IC