Salary
≈ $61k – $102k per year (Estimated)
Location
In office (Poland)
Seniority
Senior · 5+ years exp
Confirmed on the employer's own hiring board on Oct 24, 2026. First seen by Alion on Oct 23, 2026. Link Group scores B on the Alion truth index.
Overview
Company
Impact
Profile match
Link Group is a Polish technology services company founded in Warsaw in 2016 that builds and supplies engineering teams to clients across Europe. Its model combines body leasing and managed teams with delivery of complete software, cloud and cybersecurity projects, drawing on a large bench of contractors rather than a fixed permanent staff. The company works heavily in financial services, telecommunications and public sector projects, and has built a specialisation in blockchain and distributed ledger engineering alongside more conventional cloud and application development work.
We are seeking a Senior Fullstack Engineer who takes end-to-end ownership of features-from initial architecture and implementation to production monitoring. In this role, you will build and scale Next.js frontends, Python REST APIs, and event-driven background workers hosted on GCP. Additionally, you will act as a quality advocate by setting automation standards (testing, orchestration, CI/CD) across the engineering team.
Key Responsibilities
- Feature Ownership: Own the complete delivery lifecycle of core product features across Next.js, Python APIs, async workers, and GCP infrastructure.
- Automation & Quality Standards: Define and enforce automated testing strategies (Playwright, pytest) and job/workflow orchestration standards for the team.
- Event-Driven Architecture: Design and operate resilient background processing workers utilizing Pub/Sub, async queues, retry policies, and dead-letter failure handling.
- Enterprise Integrations: Connect applications with internal systems and third-party enterprise services via REST APIs, SSO/OAuth, and secure network boundaries.
- Data & Infrastructure: Design PostgreSQL schemas, manage database migrations, operate object storage (GCS/S3), and maintain Infrastructure as Code (Terraform, GitHub Actions).
- Observability & Reliability: Set up logging, metrics, tracing, and alerting to ensure reliable production delivery of distributed cloud services.
Requirements (Must-Have)
Please note: All listed requirements below are strictly mandatory for this position.- Fullstack Mastery: 5+ years of commercial fullstack experience with strong Python and solid TypeScript / React / Next.js skills.
- Automation & Testing: Proven track record in workflow/job orchestration and automated end-to-end/unit testing using Playwright and pytest.
- Event-Driven Systems: Hands-on experience with messaging queues (GCP Pub/Sub or similar), asynchronous workers, retry mechanisms, and failure handling patterns.
- Enterprise Integrations: Deep understanding of REST API design, SSO / OAuth authentication, and secure network perimeters.
- Data Management: Strong knowledge of SQL databases (PostgreSQL schema design & migrations) and object storage (GCS / S3).
- Observability & DevOps: Practical experience with distributed observability (logging, metrics, tracing, alerting) alongside working knowledge of CI/CD (GitHub Actions) and IaC (Terraform).
- Mindset & Soft Skills: End-to-end accountability (ownership mindset), excellent problem-solving ability, and clear communication with cross-functional teams (engineers, scientists, and business stakeholders).
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