Senior Backend Engineer - Commercial Systems and Intelligence
SumUpPayments company
Berlin, GermanySenior
Goldman Sachs
Temasek
Bain Capital Credit
Crestline
Oaktree Capital Management
American Express
Software Engineering
About the role
TL;DR
Senior Backend Engineer to build systems for merchant acquisition and commission management.
- •Join a newly formed team at SumUp focused on building the infrastructure for merchant acquisition, commission calculation, and lifecycle management.
- •This role offers a unique opportunity to shape the team's processes and architecture from the ground up.
- •Key Responsibilities Automate manual commission workflows and build data models for merchant acquisition attribution.
- •Develop the Lifecycle Event Log in collaboration with the Merchant Intelligence squad.
- •Build internal backoffices and APIs for sales teams to monitor and manage commissions.
- •Define and document API contracts, schemas, and integration patterns.
- •Establish best practices for testing, observability, and incident response.
- •Requirements Strong backend engineering background in Go, or a typed-language generalist ready to ramp up quickly.
- •Experience designing APIs and distributed systems with clear contracts and integration patterns.
- •Proficiency in relational and analytical databases (PostgreSQL, Snowflake).
- •Experience building Kafka-based, event-driven systems.
- •Experience in auditable, high-trust systems (fintech, payments).
Required skills
GoPostgreSQLMicroservicesREST APIgRPCWebSocketsPython
Nice-to-have skills
Snowflake
Domain expertise
fintech
Benefits & perks
Hack Days, Hack Weeks, L&D budget, VSOP program, Corporate pension scheme, 30 Days Sabbatical, Referral Bonus, Urban Sports Club subsidy, Kita placement assistance, Relocation assistance, Subsidised office lunches
Tech stack
GoPostgreSQLSnowflakeREST APIgRPCWebSocketsPython