go developer banking products

SumUp; Berlin; On-site; EUR 80,000 - 120,000; Full time

Benefits offered by this job

Annual learning budget

Mentorship programs

SumUp University leadership cohort

Sabbatical program

Health and wellness benefits

Public transport card

Pension scheme

Language-learning platform

Virtual stock ownership program

Job summary

SumUp ищет опытного backend‑инженера для построения и поддержки высоконагруженных банковских сервисов. Ваша задача — проектирование и развитие ledger и транзакционных систем, обеспечение надёжности и масштабируемости в глобальной среде.

Требуется сильный опыт в Golang, облаках AWS, Docker/Kubernetes и CI/CD, а также умение работать с SQL‑БД и коммуникацию в кросс‑региональных командах. Конкурентный пакет и возможности роста в SumUp.

Qualifications

• Опыт разработки backend‑сервисов с высокой нагрузкой.
• Понимание системного проектирования, API и моделирования данных.
• Уверенное владение Golang; готовность изучать Kotlin или Elixir.
• Умение писать поддерживаемый и тестируемый код, следовать CI/CD.
• Опыт работы с облачными средами (AWS), Docker и Kubernetes.
• Желание работать с реляционными БД и обеспечивать консистентность данных.
• Навыки коммуникации и сотрудничества между командами.

Responsibilities

• Разрабатывать и развивать ключевые банковские сервисы ledger и транзакций.
• Решать задачи распределённых систем и обеспечивать устойчивость сервисов.
• Повышать наблюдаемость, покрытие тестами, рефакторинг и внедрять новые архитектурные подходы.
• Участвовать в архитектурных решениях и строить ledger и history систем с нуля.
• Сотрудничать с командами Risk, Treasury, Finance, Infrastructure для надёжности глобальных операций.
• Владеть сервисами от дизайна до продакшена, мониторингом и качеством доставки.

Skills

Backend development

Systems design

APIs

Data modeling

Go (Golang)

CI/CD

Cloud (AWS)

Docker

Kubernetes

PostgreSQL

Коммуникация

Финансовые сервисы

Tools

Docker

Kubernetes

PostgreSQL

Job description

Описание: SumUp provides simple and affordable business tools that help small businesses start, run, and grow. More than 4 million businesses in 36 markets use SumUp as a financial partner for payments, finance, and customer relationships.

Задачи

• Build and evolve core banking services powering ledger operations and transactions, transforming regional systems into a unified, scalable global platform;
• Solve complex distributed-systems challenges and ensure resilient services under high transaction volumes;
• Improve observability, add test coverage, refactor code, and introduce new architectural patterns without disrupting live banking operations;
• Contribute to architectural decisions and build ledger and transaction-history systems from the ground up;
• Collaborate with Risk, Treasury, Finance, and Infrastructure teams to support compliant and reliable global operations;
• Own services from design through production, monitor their performance, and continuously improve software delivery quality at scale.

Требования

• Solid backend experience building reliable, high-volume services;
• Strong understanding of system design, APIs, data modeling, and service interactions;
• Proficiency in Golang and ability to learn and work with other languages such as Kotlin or Elixir;
• Ability to write maintainable, well-tested code and follow CI/CD best practices;
• Experience building, deploying, and running services in cloud environments such as AWS with Docker and Kubernetes;
• Willingness to learn about relational databases that perform well under load and maintain data consistency;
• Clear communication, effective feedback exchange, cross-regional collaboration, and thoughtful technical decision-making;
• Interest in building reliable financial services and banking products;
• Nice to have: Knowledge of Elixir, deeper PostgreSQL experience including performance tuning, complex queries, or schema design, experience with event streaming platforms such as Kafka, experience with observability stacks such as Grafana or Honeycomb.

Условия

• Annual learning budget of 2,000 EUR;
• Training, mentorship programs, SumUp University leadership cohort, and career growth opportunities;
• Sabbatical program for tenured employees;
• Health and wellness benefits, including fitness classes, an office gym, subsidized Urban Sports Club, and psychotherapy sessions;
• Subsidized public transport card, Kita placement assistance, pension scheme, and language-learning platform or courses;
• Enrollment in a virtual stock ownership program;
• Equal Employment Opportunity employer with an inclusive workplace.