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Sigma Software Group

Senior .NET Developer

Sigma Software Group

Senior .NET Developer developing high-impact, cloud-native FinTech solutions with an innovative team. Responsible for enhancing and expanding the embedded finance platform for a leading FinTech company.

Posted 6/13/2026full-timeRemote • 🇵🇱 PolandSeniorWebsite

Tech Stack

Tools & technologies
AngularAWSCloudDockerKafkaKubernetes.NETNoSQLRabbitMQ

About the role

Key responsibilities & impact
  • Design, build, and deliver features and projects across C#, .NET Core, and Angular stack
  • Write clean, maintainable, and well-tested code (unit/integration/e2e)
  • Take ownership of features from requirements breakdown to deployment
  • Deploy and monitor services in AWS cloud-native environments
  • Handle production issues and incidents with accountability
  • Collaborate with Product, Design, and Engineering teams in Agile practices
  • Contribute to continuous improvement of systems and processes

Requirements

What you’ll need
  • 5+ years of experience in software development with strong OOP and system design skills
  • Solid hands-on experience with .NET (C#) and Angular
  • Understanding of software testing concepts and practices
  • Expertise in cloud-native and DevOps practices (CI/CD, automation, monitoring)
  • Experience with relational and NoSQL databases
  • Knowledge of non-functional requirements (performance, security, availability)
  • Proven experience in FinTech, payments, banking, or regulated financial environments
  • Upper-Intermediate English level or higher
  • Experience with Docker/Kubernetes
  • Familiarity with event-driven architectures (Kafka, RabbitMQ)
  • Proficiency with observability tools (Datadog or similar)
  • Knowledge of domain-driven design (DDD) and complex domain modeling

Benefits

Comp & perks
  • Flexible work arrangements

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools
C#.NET CoreAngularOOPsystem designsoftware testingcloud-nativeDevOpsrelational databasesNoSQL databases
Soft Skills
ownershipaccountabilitycollaborationAgile practicescontinuous improvement