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December 17, 2025

Senior .NET Engineer

Senior • Hybrid

Warsaw, Poland

About On The Spot

We bring startups and disruptive tech companies to the local market, offering engineers the opportunity to work on innovative, high-impact products. Join us and become a member of their R&D team while we take care of employment, HR support, a benefits package, and an enjoyable work environment.


About the team

Cycode is an AI‑Native Application Security Platform that secures every stage 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 connect signals across the entire development lifecycle, helping teams focus on the highest-impact risks and automate remediation. ‍By integrating source control, CI/CD tools, cloud environments, and deployment pipelines, Cycode gives organizations full visibility and control over how their software is built and delivered.

Take a look inside Cycode’s Warsaw team 👉 in our blog post.

About the role

As a Backend Engineer, you will be involved in all stages of production from architecture, designing, coding, deploying and maintaining.

We use .NET Core, C#, MongoDB, Kafka, Postgres, Kubernetes, Graph-DB, Arango DB, Go (small service), Python (our CLI), CI/CD, Terraform, and Docker.

Responsibilities

  • End-to-end development

  • Contribute to technological and architectural decisions

  • Work collaboratively with professional developers, Designers, and Product Managers to deliver a high-quality product


Requirements

  • 4+ years of .NET Core/C# experience

  • Experience with microservices development

  • Deep understanding of microservices architecture and cloud-native development

  • Experience with databases and message queue technologies

  • Experience with Docker and Kubernetes


Nice to have

  • Experience in developing a security-related SAAS product

  • Experience with continuous integration and deployment (CI/CD)

  • B.Sc in Computer Science/Software Engineering or related field

  • Familiarity with the GraphQL framework

  • Familiarity with the Graph Databases


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 office in Warsaw at Prosta 51

  • ‍5 sick days per year

  • Medical insurance (after the end of the probationary period)

  • Flexible working hours – we care about you (!) and your output

  • English and Polish classes 2 times a week (online)

  • Bright and memorable corporate life: corporate parties, gifts to employees on significant dates