Fresha

Senior Full Stack Engineer (B2B - Warsaw)

Fresha  •  300k - 480k/yr  •  Warsaw, PL (Onsite)  •  12 hours ago
Apply
AI can make mistakes so check important info. Chat history is never stored.

Job Description

Location: Warsaw, Poland — Onsite (4 days on-site)

Contract: B2B · 25–40 k PLN net / month + RSUs

The AI-powered OS for beauty,

wellness and self-care

Fresha is the operating system for the global beauty, wellness and self-care industry, connecting and powering everything from salons and barbers to spas, medspas, fitness studios and health practices.

Marketplace + SaaS platform + Fintech

Fresha is the leading AI operating system trusted by millions of consumers and businesses worldwide. Fresha is used by 130,000+ businesses and 450,000+ stylists and professionals worldwide, processing over 1 billion appointments to date. Empowering businesses with an all-in-one platform for bookings, point-of-sale, marketing, and more, while connecting consumers to local services.

Your Impact as a Full Stack Engineer

At Fresha, we believe AI is a force multiplier for feature delivery, not just a coding assistant. We provide every engineer with top-tier tooling (Claude, GitHub Copilot, Cursor) to strip away technical toil—so you can focus your energy on shipping high-impact product features. We value engineers who know how to leverage these tools to drive momentum within our 6-week cycles, accelerating the journey from concept to code while maintaining the deep technical judgment to verify, secure, and own the final user experience.

Are you ready to make a significant impact in a fast-paced, autonomous environment? We're seeking an exceptional Backend Engineer to join our cross-functional product team in Warsaw.

What You'll Do

  • Collaborate closely with Product, Design, Frontend, Infrastructure, and Mobile engineers to take features from discovery to rollout and beyond.
  • Be responsible for features from discovery to observability: technical design, implementation, testing, and rollout.
  • Design, build, and maintain efficient, scalable, and reliable Ruby/Elixir code.
  • Work with a polyglot stack (Ruby, Elixir, GraphQL, TypeScript, gRPC) and modern messaging systems (Kafka).
  • Operate within a Kubernetes-driven environment as we continue moving to a microservice architecture.
  • Embrace Domain-Driven Design to build high-quality, impactful products from inception to delivery.

To foster a collaborative environment that thrives on face-to-face interactions and teamwork, all Fresha employees work from the office four days per week, with the flexibility to work remotely on Wednesday each week. Warsaw: 20th Floor, Aleje Jerozolimskie 81, 02-001 Warsaw, Poland

What we are looking for

  • AI-Augmented Workflow: You have deep experience building and interacting with AI agents, using them to amplify your output to 5x that of manual coding. You are able to integrate agents into our workflow while strictly adhering to our architecture and security standards, taking full accountability for ensuring all generated code meets the quality expectations of a Senior Engineer.
  • Experience building and maintaining globally distributed systems.
  • Knowledge of event-driven architectures (Kafka).
  • ~2+ years of experience in product engineering, developer tools, or infrastructure at scale.
  • A pragmatic generalist who thrives on learning new frameworks and tackling complex challenges.
  • Familiarity with languages such as Elixir, Ruby, or TypeScript is a plus.

Why Join Fresha?

Interview Process

  • Screen call - Video call with a member from the Talent Team - 30 - 60 minutes
  • 1st stage - Technical Video call/In-person interview with our Engineers- Up to 90 minutes
  • Tech stage - Technical Video call/In-person interview with our Engineers - up to 2 hours
  • Final stage - Video call/In person meet with our CTO - up to 60 minutes
Fresha

About Fresha

Fresha is the world’s leading marketplace platform for the beauty, wellness, and self-care industry, trusted by millions of consumers and businesses worldwide.

For consumers, Fresha offers a seamless way to discover, book, and pay for beauty and wellness services with top local professionals. For businesses, Fresha provides an all-in-one platform that streamlines operations, from appointment management to client engagement, helping them grow effortlessly with powerful business software, integrated payments, financial services and cutting-edge technology solutions.

Fresha’s comprehensive ecosystem empowers businesses and professionals with everything they need to operate seamlessly and efficiently. From appointment bookings, point-of-sale, client management, and marketing automation to loyalty programs, inventory management, and team coordination, Fresha provides an all-in-one solution designed to drive business growth.

Fresha’s consumer marketplace helps businesses unlock their full revenue potential by maximizing online bookings and leveraging automated marketing tools. Through seamless integrations with major platforms like Instagram, Facebook, and Google, businesses can attract more clients while Fresha’s mobile apps ensure a smooth booking experience.

Today, 130,000+ businesses and 500,000+ professionals rely on Fresha, with over 1 billion appointments processed to date. Headquartered in London, United Kingdom, Fresha has a global presence with offices in New York City, Orlando, Vancouver, Madrid, Paris, Amsterdam, Warsaw, Sydney, Singapore and Dubai.

Industry
IT & Software
Company Size
501-1,000 employees
Headquarters
London, GB
Year Founded
2015
Social Media