SumUp

Senior Backend Engineer - Bookings

18.9k - 29.7k PLN18 850 - 29 660 PLN/ mies./ mies.UoPUmowa o pracę (brutto)

18.9k - 29.7k PLN18 850 - 29 660 PLN/ mies./ mies.B2BB2B (netto)

SeniorHybryda·WarszawaFull-time·Umowa o pracę·B2B

#448055·Dodano 24 dni temu·2

Źródło: justjoin.it

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Tech Stack / Keywords

Kotlin Spring Boot Kafka Java PostgreSQL Docker Kubernetes AWS RESTful API CI/CD

Podsumowanie oferty

You will design, build, and maintain scalable backend systems supporting SumUp's Bookings product, collaborating with frontend and mobile engineers to deliver new features and improve APIs for web, iOS, and Android. The role includes participation in technical planning, code reviews, design discussions, and contributing to the technical roadmap. The goal is to provide small merchants with a complete and competitive digital selling solution.

Wymagania

5+ years of professional backend engineering experience
Fluent in Kotlin (or Java) with deep experience in Spring Boot
Experience with PostgreSQL, Kafka, Docker, Kubernetes, and AWS
Understanding of RESTful APIs, distributed systems, and event-driven architectures (e.g. CQRS, Event Sourcing)
Experience with CI/CD pipelines, GitHub Actions, and observability tools like Grafana or Honeycomb
Ability to collaborate well in teams, mentor peers, and focus on delivering value to merchants

Nice to have:

Familiarity with gRPC, Protobuf, or performance optimisation at the backend/database level

Obowiązki

Design, build, and maintain scalable backend systems supporting SumUp’s Bookings product
Collaborate with frontend and mobile engineers to deliver new features and improve APIs across web, iOS, and Android
Participate in technical planning, code reviews, and design discussions to ensure clean, testable, and maintainable code
Continuously optimise performance, ensure observability, and uphold high reliability standards
Actively contribute to shaping the technical roadmap for the Sell Online platform

Benefity

Opportunity to work from SumUp's vibrant Warsaw office with a hybrid setup
Enrolment in the Virtual Stock Option programme
Annual learning & development budget of €2000 for conferences and career advancement
Access to an on-site gym and a subsidised Multisport Card for sports facilities in Warsaw
Health insurance coverage for employee and family plus life insurance
26 days of paid leave plus public and special leave days
1-month sabbatical after 3 years of service
Referral bonus program

Elastyczne godziny

Udziały pracownicze

Budżet konferencyjny

Karta sportowa

Opieka zdrowotna

Płatny urlop

Płatne święta

Premie

Inne informacje

The stated salary range represents expected compensation for candidates meeting core requirements; offers above may be considered in exceptional circumstances subject to internal review. Candidates do not need to meet 100% of criteria to apply; room for learning is accepted.

SumUp

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