Jobs / Sezzle
Principal Infrastructure Engineer
Sezzle · Berlin, BE, Deutschland
Berlin, BE, DeutschlandExp: 12+ yrs12,500-20,800 EUR/yearlyRemote
Remuneration
12,500-20,800 EUR/yearly
Location
Berlin, BE, Deutschland
Visa sponsorship
Not specified
Job summary
The Principal Infrastructure Engineer is tasked with designing, building, operating, and scaling the platform, addressing critical infrastructure challenges such as throughput enhancement and latency reduction. Responsibilities include engineering for performance, constructing AWS infrastructure, optimizing Aurora RDS for MySQL and Postgres, and participating in on-call rotations to manage technical recovery during incidents.
Qualifications
- 12+ years of experience across infrastructure, platform, site reliability, software development, or related engineering disciplines
- Deep expertise with AWS
- Deep expertise with Kubernetes in production
- Deep expertise with relational databases at scale, specifically RDS/Aurora
- A track record of personally delivering infrastructure scaling improvements
- Strong coding and automation skills, using Golang, Python, or similar languages
- Strong systems fundamentals
- Experience operating a 24/7, high-availability platform
- Willingness to participate in an on-call rotation
- Experience implementing and testing disaster recovery
- Practical experience with observability, load testing, capacity planning, and safe CI/CD practices
- Active use of AI tooling in engineering or operations
Responsibilities
- Own the technical architecture and evolution of core infrastructure
- Connect business understanding to improvements across the system
- Engineer for scale and performance
- Design and build AWS infrastructure
- Build and operate the Kubernetes platform
- Scale and optimize Aurora RDS for MySQL and Postgres
- Improve reliability through engineering
- Participate in on-call and drive technical recovery during serious incidents
- Implement and test disaster recovery
- Build infrastructure-as-code and operational automation
- Build observability that makes production diagnosable
- Deliver safe infrastructure migrations
- Improve cloud cost efficiency through technical changes
- Build and evaluate AI-assisted operational tooling
- Make technical decisions clear and executable
Skills
AWSEKSGitGitLabGoGrafanaIAMKubernetesLinuxLokiMakeMySQLPostgreSQLPrometheusPythonTempoTerraform
Degrees
Bachelor's degree in Computer Science or a similar technical field
Relocation
No