Platform/Release Engineering Team Lead at Sofiastars - Sofia City, Bulgaria (Belgrade, Serbia, Lisbon, Portugal, Sofia, Bulgaria, Warsaw, Poland)

Platform/Release Engineering Team Lead

Sofiastars

Sofia City, Bulgaria (Belgrade, Serbia, Lisbon, Portugal, Sofia, Bulgaria, Warsaw, Poland) permanent

Posted: April 6, 2026

Quick Summary

As the Platform/Release Engineering Team Lead, you will be responsible for building a seamless and efficient SDLC, with a focus on GitOps and a team of 100+ engineers. Your primary goal is to guide the team in transitioning to a GitOps methodology, ensuring a smooth implementation of this new approach. Key skills include expertise in GitOps, CI/CD pipelines, and software release management.

Required Skills

Job Description

Sofia Stars is a fast-growing global service provider that guides high-growth businesses to success. Our range of tailored solutions includes R&D, Customer Support, Sales, KYC, Risk, and Anti-Fraud services. We make every connection shine with fresh tech and cultural understanding.

✅ It's a 100% office-based position.

We invite the Platform/Release Engineering Team Lead to join our team in Sofia City, Bulgaria.

We are looking for a leader to head our internal CI infrastructure team. Your primary goal is to build a seamless and efficient SDLC. We are currently transitioning to a GitOps model (ArgoCD, Argo Rollouts) and building robust tools for managing test environments.

✅ Responsibilities:
✔️ Technical Leadership: Manage the team and define the strategic direction for the company-wide CI/CD infrastructure.
✔️ GitOps Transformation: Drive the migration of service deployments to ArgoCD and Argo Rollouts (Canary, Blue-Green).
✔️ Tooling Development: Build internal services and Proof of Concepts (PoCs) to optimize team workflows, including environment management, Quality Gates, and release automation.
✔️ Security & Quality: Integrate static analysis tools (SAST/DAST) and automate code quality checks within our pipelines.
✔️ Optimization: Accelerate the build and distribution pipelines for mobile and web applications, ensuring overall infrastructure stability.

✅ Requirements:
✔️ Experience: 5+ years in DevOps/Infrastructure/SRE/Release Engineering, coupled with proven team leadership or tech lead experience.
✔️ Core Skills: Deep expertise in Kubernetes, Docker, and Helm.
✔️ Argo Ecosystem: Hands-on experience with ArgoCD and Argo Rollouts.
✔️ CI Tools: Practical, in-depth experience with GitLab CI and Jenkins.
✔️ Development: Strong programming skills in Python (or TS/JS as an alternative) for building internal tooling and automation.
✔️ Observability: Solid experience with Grafana and OpenTelemetry.
✔️ Architecture: Understanding of microservices architecture, message brokers (RabbitMQ/Kafka/NATS), and network protocols (gRPC, GraphQL, WebSockets).
✔️ Domain Knowledge: Familiarity with the specific nuances of building and delivering Mobile (iOS/Android) and Web applications.

✅ Nice to have:

✔️ Experience integrating AI tools into development and testing processes.
✔️ Familiarity with Service Catalogs (Backstage, Port.io, or similar equivalents).
✔️ Proven track record of driving and implementing technological changes at a company-wide level.
✔️ Hands-on experience with AWS and HashiCorp Vault.

✅ Why Sofia Stars?
🏖️ Up to 25 vacation days.
🤒 6 Undocumented Sick Leave Days.
💷 Monthly food vouchers (102 EUR).
🏥 Private Medical Insurance.
🏋🏼 Multisport Card.
🎁 Birthday, Wedding and Newborn gifts.
🍔 Breakfast, Friday lunches, fruits, and snacks in the office.
🎭 Monthly company activities and team-building events.
🚀 Career growth opportunities.
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