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Senior Backend Engineer — C#/DevOps
About the team
Cycode is an AI‑Native Application Security Platform that secures every phase of modern software delivery. Cycode unifies code and pipeline scanning, secrets detection, supply chain security, IaC analysis, and runtime insights into one end‑to‑end solution.
The platform uses AI to correlate signals across the entire development lifecycle, prioritize the risks, and automate remediation where it matters most.
By connecting to source control, build systems, cloud environments, and deployment pipelines, Cycode gives organizations complete visibility and control over how software is built and released.
About the role
We’re looking for a skilled Backend Engineer to join our Scanners Infrastructure Team, where C# engineering meets cloud-native DevOps. Your mission will be to ensure our services are resilient, performant, and - above all - scale efficiently. You’ll take ownership of the monitoring, scaling, and optimization of our .NET Core microservices hosted on Kubernetes (using Keda as an autoscaler).
This is a hybrid role where backend development and infrastructure reliability go hand-in-hand. You will play a vital role in identifying performance bottlenecks, proactively resolving production issues, and continuously improving service health and scalability. You'll work closely with teammates to detect scanner performance issues, build out robust alerting, and implement long-term improvements.
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Responsibilities
- Own the end-to-end development and performance of backend C# services
- Design, implement, and maintain autoscaling strategies on Kubernetes
- Monitor and optimize the health of production systems; build and maintain robust alerting around scanner performance
- Collaborate with the team to identify infrastructure and performance gaps and deliver scalable solutions
- Participate in architectural and technological decisions to support a rapidly growing platform
Requirements
- 4+ years of hands-on experience with .NET Core / C# in production environments
- Solid experience working with microservices architecture
- Strong understanding of Kubernetes and container orchestration, ideally with KEDA
- Experience with monitoring and alerting tools, and a strong focus on production reliability (Grafana)
- Familiarity with databases (MongoDB, PostgreSQL, GraphDBs) and messaging systems (Kafka)
- Experience with Docker, CI/CD, and infrastructure as code tools like Terraform
- Passion for building scalable, observable, and resilient backend systems
Benefits
- Work in a highly professional team. Informal and friendly atmosphere in the team
- Paid vacation — 20 business days per year, 100% sick leave payment
- Equipment provision
- Partially compensated educational costs (for courses, certifications, professional events, etc.)
- Legal and Accounting support in Poland
- Ability to work from our comfortable downtown office in Warsaw
- 5 sick days per year
- Medical insurance (after the end of the probationary period)
- English and Polish classes 2 times a week (online)
- Bright and memorable corporate life: corporate parties, gifts to employees on significant dates
Join us
To be considered for this position, you must have Polish citizenship, a D-type work visa, or a residence permit. Thank you!
Contribute to our growth
Know someone perfect for this role? Let us know about them. We have a referral program to recognize your support.
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