Principal Engineer
Workplace: STOCKHOLM, Sverige
Expires: August 13, 2025
A senior engineering position at Klarna Bank AB focused on designing scalable architectures, guiding technical strategy, mentoring engineers, and ensuring security and performance in complex distributed systems.
Main requirements:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field
- 7+ years of software engineering experience
- 3+ years experience in senior/principal individual contributor role
- Proven record of designing and deploying complex, distributed systems at scale
- Proficiency in backend or full-stack languages
- Experience with cloud environments and containerization
- Strong understanding of security practices, risk management, and compliance
- Excellent problem-solving and communication skills
- Leadership in mentoring and architectural guidance
Responsibilities:
- Design and evolve scalable, high-performing, resilient architectures
- Contribute to long-term technical strategy aligned with business goals
- Guide and influence engineering best practices focusing on quality, security, maintainability, performance
- Collaborate cross-functionally with Product, Design, Data, and Infrastructure teams
- Remain hands-on through prototyping, code reviews, and resolving complex issues
- Mentor engineers and foster security-aware engineering culture
- Lead technical risk assessments, security planning, and engineering metrics improvement
- Represent problem spaces in security audits and compliance, drive security improvement programs
- Coordinate with Security Champions and advocate strong security principles and training
Required hard skills:
- Software Engineering
- Design and deployment of distributed systems
- Backend and/or Full-stack programming
- Cloud environments (AWS)
- Containerization (Docker, Kubernetes)
- Security practices and risk management
- Prototyping and code review
Soft skills:
- Excellent problem-solving
- Effective communication and stakeholder influence
- Leadership and mentoring capabilities
Coding languages:
- Java
- Go
- Python
- TypeScript
- Node.js
Natural languages:
- English (Proficient)
Cultural skills:
- Cross-functional collaboration
- Security-awareness
- High performance engineering culture
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