SumUp
Senior Backend Engineer - Golang(m/w/x)
Full-timeOn-siteSenior
Berlin
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SUSumUp
Senior Backend Engineer - Global Expansion(m/w/x)
Berlin
Full-timeOn-siteManagement
AI/ML
Nejo AI Summary
Designing scalable backend services for global financial tools, processing transactions across 37 markets. Strong Golang or JVM language proficiency required. Virtual stock options, €2,000 annual L&D budget.
Requirements
- Strong proficiency in Golang or JVM language (Java/Kotlin)
- Experience building distributed, fault-tolerant backend systems
- Experience configuring AI coding assistants at team level
- Defining rules, prompts, and context packages for AI assistants
- Solid understanding of idempotency in financial systems
- Solid understanding of retry policies in financial systems
- Solid understanding of transaction safety in financial systems
- Comfort working across multiple teams and domains
- Navigating ambiguity and influencing without authority
- Track record of taking ownership in complex environments
- Experience in cross-functional environments with unclear scope
- Willingness to learn and develop career
Tasks
- Design scalable backend services
- Build backend services in Golang and Kotlin
- Handle merchant onboarding processes
- Process transactions across multiple markets
- Perform technical investigations for new market launches
- Mentor engineers on the team
- Configure AI coding assistants with team-specific rules
- Maintain AI coding assistants for framework conventions
- Build AI agents to automate development tasks
- Generate integration stubs using AI
- Update OpenAPI specifications
- Flag idempotency violations
- Ensure accurate and AI-accessible documentation
Work Experience
- approx. 4 - 6 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- English – Business Fluent
Tools & Technologies
- Golang
- Java
- Kotlin
- AI coding assistants
Benefits
Competitive Pay
- Virtual Stock Option programme
Learning & Development
- Annual L&D budget of €2,000
Retirement Plans
- Corporate pension scheme with 20% match
More Vacation Days
- 28 days of paid leave
- Special leave days
Other Benefits
- Public holidays
Healthcare & Fitness
- Urban Sports Club subsidy
Childcare
- Kita placement assistance
Free or Subsidized Food
- Subsidised office lunches
Workation & Sabbatical
- 1-month sabbatical after 3 years
Bonuses & Incentives
- Referral Bonus
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of SumUp and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
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SUSumUp
Senior Backend Engineer - Global Expansion(m/w/x)
Berlin
Full-timeOn-siteManagement
AI/ML
Nejo AI Summary
Designing scalable backend services for global financial tools, processing transactions across 37 markets. Strong Golang or JVM language proficiency required. Virtual stock options, €2,000 annual L&D budget.
Requirements
- Strong proficiency in Golang or JVM language (Java/Kotlin)
- Experience building distributed, fault-tolerant backend systems
- Experience configuring AI coding assistants at team level
- Defining rules, prompts, and context packages for AI assistants
- Solid understanding of idempotency in financial systems
- Solid understanding of retry policies in financial systems
- Solid understanding of transaction safety in financial systems
- Comfort working across multiple teams and domains
- Navigating ambiguity and influencing without authority
- Track record of taking ownership in complex environments
- Experience in cross-functional environments with unclear scope
- Willingness to learn and develop career
Tasks
- Design scalable backend services
- Build backend services in Golang and Kotlin
- Handle merchant onboarding processes
- Process transactions across multiple markets
- Perform technical investigations for new market launches
- Mentor engineers on the team
- Configure AI coding assistants with team-specific rules
- Maintain AI coding assistants for framework conventions
- Build AI agents to automate development tasks
- Generate integration stubs using AI
- Update OpenAPI specifications
- Flag idempotency violations
- Ensure accurate and AI-accessible documentation
Work Experience
- approx. 4 - 6 years
Education
- Bachelor's degreeOR
- Master's degree
Languages
- English – Business Fluent
Tools & Technologies
- Golang
- Java
- Kotlin
- AI coding assistants
Benefits
Competitive Pay
- Virtual Stock Option programme
Learning & Development
- Annual L&D budget of €2,000
Retirement Plans
- Corporate pension scheme with 20% match
More Vacation Days
- 28 days of paid leave
- Special leave days
Other Benefits
- Public holidays
Healthcare & Fitness
- Urban Sports Club subsidy
Childcare
- Kita placement assistance
Free or Subsidized Food
- Subsidised office lunches
Workation & Sabbatical
- 1-month sabbatical after 3 years
Bonuses & Incentives
- Referral Bonus
Find the original job posting in its most current version here. Nejo automatically captured this job from the website of SumUp and processed the information on Nejo with the help of AI for you. Despite careful analysis, some information may be incomplete or inaccurate. Please always verify all details in the original posting! Content and copyrights of the original posting belong to the advertising company.
Like this job?
BetaYour Career Agent finds similar jobs for you every day.
About the Company
SumUp
Industry
FinancialServices
Description
The company is a leading global fintech company committed to leveling the playing field for small businesses.
Not a perfect match?
- SumUp
Senior Backend Engineer - Golang(m/w/x)
Full-timeOn-siteSeniorBerlin - SumUp
Senior Backend Engineer - Accounts(m/w/x)
Full-timeOn-siteSeniorBerlin - SumUp
Senior Backend Engineer (Golang) - Bank(m/w/x)
Full-timeOn-siteSeniorBerlin - SumUp
Backend Engineer - Sales & Orders(m/w/x)
Full-timeOn-siteExperiencedBerlin - A11
Backend Engineer - FinTech(m/w/x)
Full-timeOn-siteSeniorBerlin