--- title: 'Backend Engineer (Golang) - Bank Balance at SumUp' canonical: 'https://feeny.ai/job/backend-engineer-golang-bank-balance-sumup-vilnius-pebbxc1jrtty' type: 'job' last_seen: '2026-09-08' --- # Backend Engineer (Golang) - Bank Balance at SumUp - **Company:** SumUp - **Location:** Vilnius, Lithuania - **Posted:** 2026-09-08 - **Last confirmed live:** 2026-09-08 - **Apply:** https://sumup.com/careers/positions/8785611002?gh_jid=8785611002 ## Job description At SumUp, the Global Bank team builds the core infrastructure and services that give merchants a digital bank account, helping small businesses manage their money easily and reliably. The Balance Management Squad sits at the core of the Global Bank Platform. Right now, our team is completing a major milestone: consolidating and modernizing our balance management system in Europe. The next big step is creating a global transaction history service; a single, shared platform used by all regions to give merchants consistent and transparent views of their financial activity. As a Backend Engineer, you’ll help modernize existing systems while balancing innovation with stability, collaborate with teams across regions, and build reliable services that manage diverse markets with different regulations. If you enjoy solving complex problems on high-load systems, are curious about banking, and are looking for a team that tackles challenges head-on, we’d love to hear from you. The Vilnius team is a core part of the Global Bank domain. We own production systems, shape technical direction, and work closely with colleagues across SumUp’s global offices on critical merchant banking capabilities. Join our Vilnius Team today ([Vilnius office](https://youtu.be/cWvuD3GXxwE?si=5Gmb-XnGV8wBnGoB)). ## What You’ll Do - Build and evolve the SumUp’s core banking services that powers ledger operations and transactions, transforming our regional systems into a unified, scalable global platform. - Tackle complex distributed systems challenges, ensuring resilient services that continue to perform under high transaction volumes. - Support modernization initiatives by improving observability, adding test coverage, refactoring code for long-term maintainability, and gradually introducing new architectural patterns without disrupting live banking operations. - Contribute to key architectural decisions - build ledger and transaction history systems from the ground up, ensuring a globally scalable banking solution for our clients. - Collaborate with teams across Risk, Treasury, Finance, and Infrastructure to ensure smooth, compliant, and reliable global operations - Take ownership from design to production, running the services you build, monitoring their performance, and continuously improving how we deliver high-quality software at scale. You’ll be great for this role if - You have solid backend experience building reliable, high-volume services and you think carefully about system design, APIs, data modeling, and how services interact. - You are proficient in Golang and comfortable learning and working with other languages as needed, e.g. Kotlin or Elixir. - You write maintainable, well-tested code, follow CI/CD best practices, and take responsibility for the software you build from development to production. - You’re comfortable building, deploying, and running services in cloud environments like AWS using Docker and Kubernetes. - You’re eager to learn about relational databases that perform well under load and maintain data consistency. - You are a collaborator who enjoys working across regions, communicating clearly, exchanging feedback effectively, and making thoughtful technical decisions together. - You have a curiosity for building reliable financial services and banking domain It’s a plus if you have - Knowledge of Elixir - some of our legacy services are written in Elixir, and while it's not essential, it would be useful if you've worked with it before - Deeper PostgreSQL experience - we rely heavily on Postgres, so if you've done performance tuning, complex queries, or schema design, that's a plus - Experience with event streaming platforms (Kafka preferred) and modern observability stacks (Grafana, Honeycomb, etc.) ## Why you should join SumUp 🌎 We’re a truly global team of 3200+ skilled professionals from 92+ countries, spread across 4 continents. Join the team from our Vilnius office. 🌈 Commitment to Diversity and Inclusion: be part of a workplace that values and promotes diversity, fostering an inclusive environment where everyone's perspectives are respected and embraced. 🚀 Enrolment onto our Virtual Stock Option programme: you will own a stake in SumUp’s future success 🏖️ Time off: 25 days of paid leave, plus special holidays 🏥 Peace of mind: health insurance through Gjensidige and life & accidental coverage from Ergo 💪 Stay active: gym membership allowance to help you keep fit on your terms 📚Career growth and learning opportunities: We invest in your development through regular training, mentorship programs, SumUp University cohort and a yearly learning budget (2,000 EUR) 💡We take learning and experimentation seriously with Hack Days every second Friday, and entire[global Hack Weeks](https://www.youtube.com/watch?v=FBKiVCLompk). 🌴 Break4me: 1-month sabbatical after 3 years of service 🔗 Referral Bonus: earn additional rewards by referring talented individuals to join the SumUp team. Compensation: In Lithuania is 3,493  to 4657 Euro Gross p/m + 2000 EUR annual learning budget + Virtual Stock Options. Offer may vary based on skills and experience ## About SumUp Be empowered to do more that matters. At SumUp, we're on a mission to empower small businesses across the globe by providing a vast set of simple and affordable business tools to help them start, run, and grow their businesses. Today, over 4 million businesses in 36 markets rely on SumUp as their financial partner to manage payments, finance and customer relationships. Our commitment to small businesses is reflected in our diverse team of over 3,000 SumUppers from over 90 nationalities, united by global collaboration and an innovative mindset. [Our core values](https://youtu.be/1axu-TmW088?si=5NjHKNq5n-1GbXc2) lay the foundation for who we are and what we stand for, shaping our work [culture](https://youtu.be/XEH_nmJ9KZ4?si=pr6TdFl98FhpD5KG) and driving our success. We foster an inclusivity and continuous learning culture, providing a safe space for personal and professional growth. Our differences make us unique and strong as we strive to create an environment where everyone belongs and feels supported, no matter how they identify. SumUp is proud to be an Equal Employment Opportunity employer, actively seeking and embracing diversity in our workforce. We don't make hiring or employment decisions based on race, colour, religion or religious belief, ethnic or national origin, nationality, sex, gender, gender identity, sexual orientation, disability, age or any other basis protected by applicable laws or prohibited by company policy. Our commitment extends beyond recruitment to creating a safe and respectful workplace where harassment of any form is strictly prohibited. Explore career opportunities with us and join a team driven by collaboration, innovation, and a shared vision of creating a world where everyone can build a thriving business. Discover more about our vibrant and inclusive work culture and how we work on [our careers website](https://www.sumup.com/careers/), and follow our journey on [LinkedIn](https://www.linkedin.com/company/sumup/) and [Instagram](https://www.instagram.com/insidesumup/). Job Application Tip We recognise that candidates feel they need to meet 100% of the job criteria in order to apply for a job. Please note that this is only a guide. If you don’t tick every box, it’s ok too because it means you have room to learn and develop your career at SumUp. ## About SumUp ## Company Overview - **One-liner**: SumUp is a global fintech company that provides simple, affordable payment and financial management tools to help small businesses start, run, and grow. - **Entity Type**: Private (Funding stage not publicly available) - **Headquarters**: London, United Kingdom - **Founded**: 2012 - **Founders**: Not specified in provided sources ## Core Business - **Primary industry**: Financial Services / Fintech (Payments) - **Target customers**: Small and medium-sized businesses (SMBs), B2B - **Mission or purpose statement**: "Empower small businesses all over the world." — with the vision of "a world where everyone can build a thriving business." ## Products & Services - **Payment Processing (Card Readers & POS)**: Hardware and software solutions for in-person and online payments, enabling merchants to accept card and contactless payments. - **SumUp Business Account**: A digital business account for managing finances and transactions. - **Invoicing & Customer Relationship Tools**: Tools to create invoices, manage customers, and streamline operations. ## Market Standing - **Valuation/Market Cap**: Not disclosed (private company) - **Key Metric**: Over 4 million merchants served across 37 markets; 3,000+ employees from more than 90 nationalities - **Notable Investors/Partners**: Not listed in provided sources - **Growth Signals**: Headcount growth to 3,000+; recognition as a Top Global Employer for inclusion (Stonewall Workplace Equality Index 2022/2023) and Fintech Diversity Initiative of the Year (2025); expansion across 4 continents with 20+ offices. ## Competitive Advantages - **Global reach**: Operating in 37 markets with localized products and support. - **Merchant focus**: Deep commitment to small business owners, with products designed specifically for their needs. - **Inclusive culture**: Strong diversity and inclusion programs, gender parity in workforce, and employee-led communities (e.g., Pride Club). - **Autonomous teams**: Small, empowered teams with servant leadership, fostering innovation and speed. ## Strategic Focus - Expanding product and service portfolio to become a complete financial partner for small businesses. - Continuing to invest in a learning culture (SumUp University) and employee development. - Maintaining an office-first culture while enabling occasional remote work to balance collaboration and flexibility. - Growing market presence by entering new geographies and deepening existing ones. ## Why Work Here - **Culture**: Office-first company that values human connection, autonomy, and continuous learning. Core values include Team First, We Care, and Founder’s Mentality. - **Remote/Hybrid policy**: Office-first with the ability to work remotely occasionally, as agreed with teams. - **Benefits**: Relocation support for overseas hires, dedicated budget for conferences and external training, and location-specific perks. - **Engineering culture**: Autonomous teams, servant leadership, and a focus on pragmatic, self-driven problem-solving. - **Inclusion**: Recognized as a Top Global Employer for inclusion; active LGBTQ+ community and gender parity initiatives. - **Hiring process**: Transparent, with recruiter screening, hiring manager interview, technical assessment, team interview, bar raiser, and final offer. ## Sources 1. [sumup.com](https://www.sumup.com/careers/) 2. [linkedin.com](https://www.linkedin.com/company/sumup) 3. [sumup.com](https://www.sumup.com/careers/culture/) 4. [sumup.com](https://www.sumup.com/careers/positions/) 5. [sumup.com](https://www.sumup.com/careers/how-we-hire/) ## Other roles at SumUp - [Business Development Manager - North Dublin/Meath](https://feeny.ai/job/business-development-manager-north-dublin-meath-sumup-dublin-tt3gp9ymv2z7) — Dublin, Ireland - [Field Sales Executive](https://feeny.ai/job/field-sales-executive-sumup-louth-gagq165z2h6c) — Louth, Ireland - [Field Sales Executive](https://feeny.ai/job/field-sales-executive-sumup-meath-316t843a6cw3) — Meath, Ireland - [(Senior) Backend Engineer (Golang) - Bank](https://feeny.ai/job/senior-backend-engineer-golang-bank-sumup-vilnius-d4s1c64bwbr9) — Vilnius, Lithuania - [Backend Engineer (Golang) - Bank Balance](https://feeny.ai/job/backend-engineer-golang-bank-balance-sumup-berlin-9wry4wjw3rng) — Berlin, Germany - [Senior Backend Engineer](https://feeny.ai/job/senior-backend-engineer-sumup-london-england-9r9bgnz6t1sm) — London England, United Kingdom - [Executivo(a) de Vendas Externas | Taubaté - SP](https://feeny.ai/job/executivo-a-de-vendas-externas-taubate-sp-sumup-taubate-sao-paulo-vmfyqg8xxdt8) — Taubaté São Paulo, Brazil - [Executivo(a) de Vendas Externas - Santo Antônio de Jesus, Bahia](https://feeny.ai/job/executivo-a-de-vendas-externas-santo-antonio-de-jesus-bahia-sumup-santo-antonio-s599zj39m7nb) — Santo Antônio de Jesus Bahia, Brazil - [Senior Treasury Analyst (Corporate Treasury)](https://feeny.ai/job/senior-treasury-analyst-corporate-treasury-sumup-sao-paulo-sao-paulo-c8tx86b1tn26) — São Paulo São Paulo, Brazil - [Revenue Operations Specialist - Boulder, Colorado](https://feeny.ai/job/revenue-operations-specialist-boulder-colorado-sumup-boulder-colorado-bd0xcwmeg5sx) — Boulder Colorado, United States