Software Engineer (Golang) - Online Payments

Навыки

• API (интеграции)
• AWS
• CI/CD
• Docker
• Go
• Java
• Kafka

О компании и продукте

• Our robust payments processing platform has powered SumUp’s global business for over a decade. The Online Payments team, now a key part of our Payments Tribe, is responsible for facilitating all Card Not Present (CNP) transactions, ensuring our merchants can accept payments seamlessly online. This entire ecosystem is developed in Sofia by autonomous, cross-functional, and co-located squads, each owning their part of the platform end-to-end.
• We are currently in an exciting phase of scaling and improving existing products, while also developing innovative new ones. You'll make a significant impact by improving and co-creating our existing and new microservices architecture platforms, tackling complex scaling and new development challenges. Scalability and high availability are always at the forefront of our work.
• You'll join a team that values solid engineering and impactful solutions. You'll contribute to the design and development of our Golang-based Online Payments platform , working with cutting-edge tech and directly influencing our product.
• We believe in using the best technology for each challenge, fostering an environment of continuous learning and exploration. Our current ecosystem includes Golang, Kafka Streams, PostgreSQL/RDBMS, AWS, microservices architecture.

Задачи

• Co-design and develop high-performance, secure backend services for our Online Payments Platform
• Participate in API design and implementation for both internal and external integrations
• Deliver business value through backend decisions and active participation in product discussions
• Ensure high code quality, comprehensive test coverage, and clear documentation
• Optimize application performance and scalability through active monitoring and proactive solutions
• Collaborate closely with other software developers, QA, and DevOps engineers for smooth deployment, continuous integration, and support
• Actively participate in code reviews , fostering a culture of continuous improvement
• YOU'RE A GREAT FIT IF YOU HAVE
• Solid experience as a Backend Software Engineer in any modern language(e.g
• Go, Java, Python, Kotlin, etc.)
• We care more about how you think and design systems than the specific language you use
• Experience with PostgreSQL/RDBMS and distributed, fault-tolerant systems
• A genuine passion for clean, maintainable, and testable code
• Interest in using AI as part of your development workflow
• A good understanding of software architecture and application design
• At SumUp, we empower millions of small businesses worldwide
• Our Payments Tribe is at the heart of this mission, processing billions of transactions across 36+ countries each year
• We're building reliable, secure, and scalable systems that truly make a difference

Будет плюсом

• Experience with Docker and/or Kubernetes, Kafka/other messaging systems, Unix/Linux environments, and DevOps practices (CI/CD)
• WHY JOIN SUMUP?
• Make an impact on a global scale - our systems serve millions of merchants
• Learn from experienced engineers while working on complex, real-world problems
• Be part of a tech-agnostic team that uses the right tools for the job
• Collaborate with SumUppers worldwide on large-scale fintech products used by millions, based in our Sofia office (office-first setup)
• Access a €2,000 annual L&D budget to attend conferences or advance your career through education
• Benefit from extra perks like health and life insurance, co-sponsored Multisport cards, childbirth/adoption bonuses, discounts, a referral program, 100 EUR monthly food vouchers, 40 EUR flexible benefits, and more
• Please note: This role requires the right to work in Bulgaria
• We are currently not able to support visa applications or relocation for this position at this time

Условия

• Enjoy 25 days of paid leave (increasing with tenure), plus paid vacations for special occasions and a 1-month sabbatical every 3 years

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