Backend Engineer, Payments Systems & Reliability

Zaver; Stockholms kommun; On-site; SEK 900,000 - 1,200,000; Full time

Job summary

Zaver is building a core payments platform using a Java/Spring Boot monolith that processes checkout flows, real-time credit decisions, and multi-currency accounting across European markets. You will help ensure reliability, accuracy, and performance in production systems handling real money across borders.

We value engineers who can think about systems, anticipate failure modes, and ask what happens when a feature goes wrong.

Qualifications

• Must think in terms of edge cases and failure modes.
• Experience with payments or financial systems is a plus.
• Strong problem-solving and systems thinking mindset.

Skills

Java

Spring Boot

Systems thinking

PostgreSQL

SQL

Tools

Spring ecosystem tooling

Job description

Zaver is building a core payments platform using a Java/Spring Boot monolith that processes checkout flows, real-time credit decisions, and multi-currency accounting across European markets. You will help ensure reliability, accuracy, and performance in production systems handling real money across borders.

We value engineers who can think about systems, anticipate failure modes, and ask what happens when a feature goes wrong.