Job
- Level
- Senior
- Job Field
- IT, DevOps, Back End
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Salary
- 90.000 to 100.000€ Gross/Year
- Location
- Berlin
- Working Model
- Hybrid, Onsite
Job Summary
In this role, you will design and operate high-throughput backend systems that process massive streams of data in real-time while maintaining partner integrations and optimizing cloud architectures.
Job Technologies
Your role in the team
- As a Staff Backend Engineer, you will own the design and operation of the high-throughput JVM services that turn massive streams of location data into products our partners depend on in real time.
- You will operate with a high degree of autonomy and engagement, seeking out the problems worth solving, driving performance and reliability across our services, and making the architectural decisions that shape how the whole organisation builds and scales.
- You will thrive in ambiguity, turn business-critical challenges into systems that hold up under real-world load, and lift the engineers around you as you go.
- Design and evolve distributed backend systems with a strong focus on scalability and correctness.
- Take services from architecture decisions through deployment and day-to-day operation.
- Maintain existing partner integrations and build new ones to deliver large-scale data to our partners reliably.
- Build and operate cloud-native systems on AWS, including migrating services from monolithic to cloud-native architectures.
- Monitor system health, troubleshoot production issues, and optimise for performance, memory, and latency.
- Collaborate closely with Product and Data teams to deliver features that move the business.
- Raise the engineering bar across teams: drive cross-team architecture decisions and grow the engineers around you.
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Our expectations of you
Education
- A proactive approach: you identify problems, take ownership, and drive solutions with a high degree of autonomy.
Qualifications
- We are looking for a staff-level engineer with a strong backend and cloud background who is comfortable owning complex systems in production.
- Must-Have Skills
- Strong expertise in Java or another JVM language (Kotlin, Scala) and the Spring ecosystem.
- Fluency with AI-assisted development tools (for example Copilot, Cursor, Claude Code), using them to accelerate design, coding, testing, and review while keeping strong judgment over correctness, security, and maintainability.
- A strong understanding of concurrency, data consistency, and system reliability.
- Nice to Have
- A feel for architectural trade-offs (for example, synchronous vs. asynchronous processing) and comfort making decisions with incomplete information.
- Background in partner integrations or API-driven systems, or evolving systems from monolithic to cloud-native.
Experience
- 8+ years building backend systems in production, with a track record of owning services end to end.
- Experience mentoring senior engineers and influencing technical direction across teams.
- Proven experience designing and operating distributed systems under real-world load.
- Deep, hands-on AWS experience (for example S3, SQS/SNS, Lambda, IAM), including designing cloud-native architectures.
- Hands-on experience with Docker and containerised deployment workflows.
- Practical experience building and maintaining CI/CD pipelines (for example GitHub Actions, GitLab CI, Jenkins).
- Experience with PostgreSQL or other relational/NoSQL databases (for example, MongoDB) in high-throughput environments.
- Experience with systems processing large data volumes or high request throughput.
- Experience helping a team adopt AI-assisted development practices thoughtfully, balancing speed with quality.
- Experience with our wider environment: Terraform, MongoDB, Kubernetes, and AWS data tooling (Athena, Glue, Batch, Step Functions).
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What we offer
- On top of a competitive package:
- We are open to flexible work models: we work in a hybrid mode and remotely from anywhere in the world up to 3 months per year.
- You are entitled to 30 vacation days per year.
- We offer Urban Sports Club membership and a company pension scheme.
- Regular team events and company events organised by our People team (trust us, they know how to throw a party!).
- We equip you with the latest hardware and provide you with all the tools you need to thrive.
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Benefits
Health, Fitness & Fun
Topics that you deal with on the job
Job Locations
This is your employer
adsquare GmbH
adsquare GmbH, based in Berlin, is a globally operating company specializing in audience and location intelligence. It assists brands, advertisers, and media agencies in planning, activating, and optimizing their campaigns based on data. The company offers solutions that prioritize privacy in marketing and advertising.
Description
- Company Type
- Established Company
- Working Model
- Hybrid, Onsite
- Industry
- Internet, IT, Telecommunication
Staff Backend Engineer
- Salary
- 90.000 to 100.000€ Gross/Year
- Location
- Berlin
- Working Model
- Hybrid, Onsite
- Diversity
- Open for all genders
- English Only
- English only required
