Fresha

Senior Full Stack Engineer (B2B - Warsaw)

Fresha
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4 months ago
Warsaw, PolandSenior

Responsibilities

  • Collaborate with Product, Design, Frontend, Infrastructure, and Mobile engineers to deliver features from discovery through rollout.
  • Own features end to end, including technical design, implementation, testing, rollout, and observability.
  • Design, build, and maintain scalable and reliable Ruby and Elixir code.
  • Work with GraphQL, TypeScript, gRPC, Kafka, and Kubernetes in a polyglot, distributed environment.
  • Contribute to Fresha’s migration toward a microservice architecture and apply Domain-Driven Design.
  • Use AI agents and coding tools while ensuring generated code meets architecture, security, and quality standards.

Requirements

  • Senior-level full stack or backend engineering capability with a pragmatic, generalist approach.
  • Experience building and maintaining globally distributed systems.
  • Knowledge of event-driven architectures and Kafka.
  • Approximately 2+ years of experience in product engineering, developer tools, or infrastructure at scale.
  • Familiarity with Elixir, Ruby, or TypeScript is a plus.
  • Experience building and interacting with AI agents and integrating them into engineering workflows is expected.

Benefits

  • B2B contract paying 25–40 k PLN net per month plus RSUs.
  • Warsaw office arrangement with four days onsite and remote work on Wednesdays.
  • Access to AI development tools including Claude, GitHub Copilot, and Cursor.
  • Opportunity to influence product and architecture in a rapidly growing global business.
  • Collaborative culture emphasizing autonomy, innovation, and direct product impact.

Tech Stack

Fresha

About Fresha

501-1,000 employees
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