Senior Engineer - General

Klarna Bank AB; Stockholms kommun; On-site; SEK 656,670 - 875,560; Full time

Job summary

A financial technology company in Sweden is seeking a Senior Engineer to design and build scalable systems that power their global products. The role involves end-to-end ownership of services, collaboration with cross-functional teams, and contributions to technical direction. Ideal candidates should have strong coding skills, experience with distributed systems, and the ability to solve complex problems. Proficiency in English is required, and experience in fintech is a plus.

Qualifications

• Proven experience as a software engineer.
• Experience with microservices architectures.
• Understanding of software engineering fundamentals.

Responsibilities

• Design and operate scalable, high-performing systems.
• Collaborate with cross-functional teams.
• Contribute to technical direction and continuous improvements.

Skills

Strong coding skills in at least one modern programming language

Experience designing scalable, distributed systems

Strong problem-solving skills

Working proficiency in English

Tools

Cloud environments

CI/CD

Containerization

Job description

As a Senior Engineer in Klarna’s General track, you will design, build, and operate scalable, high-performing systems that power our global products. You will take end-to-end ownership of services, from architecture and development to deployment and monitoring, ensuring reliability and performance at scale. Working in small, cross-functional teams, you will collaborate closely with product, design, and other engineering colleagues to solve real customer problems. You will also contribute to technical direction, support continuous improvement of engineering practices, and share knowledge to strengthen the team’s capabilities.

Who you are

• Proven experience as a software engineer, with strong coding skills in at least one modern programming language
• Experience designing and building scalable, distributed systems and working with microservices architectures
• Strong understanding of software engineering fundamentals, including testing, code quality, and system design
• Experience working in cloud environments and with modern development tools and practices (e.g. CI/CD, containerization)
• Ability to take ownership of systems and drive work independently while collaborating effectively with others
• Strong problem-solving skills and ability to navigate complex technical challenges
• Working proficiency in English, both written and verbal

Awesome to have

• Experience in fintech, payments, or other high-scale digital products
• Familiarity with multiple programming languages and technology stacks
• Experience with observability, monitoring, and performance optimization
• Experience mentoring engineers and contributing to team development

Please include a CV in English