Mid/Senior Backend Engineer
7300 €/mon.
net
Full-time
Vilnius
- „Grafton Lithuania“, UAB
Our client was founded on the mission to empower small businesses around the world with simple, accessible fintech tools that help merchants start, run, and grow. Today they are trusted by over 4 million merchants across 37 markets globally.
Their team builds the core infrastructure and services that give merchants a digital business account, helping millions of small businesses manage their banking needs easily and reliably.
They're looking for Mid/Senior Backend Engineers to join their teams in Vilnius. You'll work on money-movement and balance/ledger systems used by millions of merchants - owning services end-to-end, from design through production, and helping modernize and scale them across multiple markets and regulations.
Tech & tools you'll work with: Go (Golang) / Kotlin, AWS, Docker, Kubernetes, PostgreSQL, Kafka, Prometheus, Grafana, Honeycomb, AI-assisted dev tools (Cursor, GitHub Copilot, etc.)
What you'll do:
● End-to-end ownership: design, deliver, deploy and run high-availability money-movement and ledger services; responsible for uptime, correctness and operational cost.
● Lead delivery: drive initiatives and own major slices of larger programs from scoping to rollout and validation.
● Architectural decisions: define and document system design, API boundaries and data models; make pragmatic trade-offs (consistency, availability, latency) that align with business and regulatory needs.
● Reliability & performance: set SLOs/SLIs, run capacity/load tests, and tune systems (DBs, streams, services) to meet throughput and latency targets.
● Observability & alerting: implement metrics, tracing, structured logging, dashboards and actionable alerts; maintain runbooks and escalation paths.
● Testing & CI/CD: own automated test strategy and delivery pipelines; use safe rollout patterns to minimize live risk.
● Modernization & maintainability: incrementally refactor, migrate or decommission legacy components while preserving service continuity.
● Operate & improve: participate in on-call, lead incident response and post-incident reviews, and drive corrective automation and preventive measures.
● Systems thinking in planning: identify risks, dependencies and edge cases early; quantify operational and regulatory impacts to inform prioritization.
● Cross-functional collaboration: work closely with Product, QA, Risk and other stakeholders to ensure solutions are compliant, operable and deliver business value.
● Team enablement: review designs, share best practices and mentor peers to raise standards for reliability, observability and delivery.
What they expect you to be able to do:
● Deliver backend services in production in a cloud/containerized environment
● Write maintainable, well-tested code and follow CI/CD best practices.
● Design resilient distributed systems: data consistency, failure modes, scalability and latency trade-offs.
● Work with relational databases under load, and design for performance and correctness.
● Communicate clearly with cross-functional stakeholders and make pragmatic technical decisions.
● Think beyond individual components and understand how backend decisions impact the overall product and user experience.
Why you should join:
● They're a truly global team of 3200+ employees from 92+ countries, spread across 4 continents.
● Enrollment onto their Virtual Stock Option program.
● 25 days of paid leave, plus special holidays.
● Health insurance and life & accidental coverage.
● Gym membership.
● Annual learning budget (2,000 EUR).
● 1-month sabbatical after 3 years of service.
● Additional rewards by referring talented individuals to join the company.
● Compensation: 3,500-7,500 EUR Gross/month. Ranges may vary based on skills and experience.
By sending your CV you express your consent that Grafton Lithuania would manage your personal data for your possible employment.
Their team builds the core infrastructure and services that give merchants a digital business account, helping millions of small businesses manage their banking needs easily and reliably.
They're looking for Mid/Senior Backend Engineers to join their teams in Vilnius. You'll work on money-movement and balance/ledger systems used by millions of merchants - owning services end-to-end, from design through production, and helping modernize and scale them across multiple markets and regulations.
Tech & tools you'll work with: Go (Golang) / Kotlin, AWS, Docker, Kubernetes, PostgreSQL, Kafka, Prometheus, Grafana, Honeycomb, AI-assisted dev tools (Cursor, GitHub Copilot, etc.)
What you'll do:
● End-to-end ownership: design, deliver, deploy and run high-availability money-movement and ledger services; responsible for uptime, correctness and operational cost.
● Lead delivery: drive initiatives and own major slices of larger programs from scoping to rollout and validation.
● Architectural decisions: define and document system design, API boundaries and data models; make pragmatic trade-offs (consistency, availability, latency) that align with business and regulatory needs.
● Reliability & performance: set SLOs/SLIs, run capacity/load tests, and tune systems (DBs, streams, services) to meet throughput and latency targets.
● Observability & alerting: implement metrics, tracing, structured logging, dashboards and actionable alerts; maintain runbooks and escalation paths.
● Testing & CI/CD: own automated test strategy and delivery pipelines; use safe rollout patterns to minimize live risk.
● Modernization & maintainability: incrementally refactor, migrate or decommission legacy components while preserving service continuity.
● Operate & improve: participate in on-call, lead incident response and post-incident reviews, and drive corrective automation and preventive measures.
● Systems thinking in planning: identify risks, dependencies and edge cases early; quantify operational and regulatory impacts to inform prioritization.
● Cross-functional collaboration: work closely with Product, QA, Risk and other stakeholders to ensure solutions are compliant, operable and deliver business value.
● Team enablement: review designs, share best practices and mentor peers to raise standards for reliability, observability and delivery.
What they expect you to be able to do:
● Deliver backend services in production in a cloud/containerized environment
● Write maintainable, well-tested code and follow CI/CD best practices.
● Design resilient distributed systems: data consistency, failure modes, scalability and latency trade-offs.
● Work with relational databases under load, and design for performance and correctness.
● Communicate clearly with cross-functional stakeholders and make pragmatic technical decisions.
● Think beyond individual components and understand how backend decisions impact the overall product and user experience.
Why you should join:
● They're a truly global team of 3200+ employees from 92+ countries, spread across 4 continents.
● Enrollment onto their Virtual Stock Option program.
● 25 days of paid leave, plus special holidays.
● Health insurance and life & accidental coverage.
● Gym membership.
● Annual learning budget (2,000 EUR).
● 1-month sabbatical after 3 years of service.
● Additional rewards by referring talented individuals to join the company.
● Compensation: 3,500-7,500 EUR Gross/month. Ranges may vary based on skills and experience.
By sending your CV you express your consent that Grafton Lithuania would manage your personal data for your possible employment.
Salary
7300
€/mon.
net
„Grafton Lithuania“, UAB
For over 20 years we have been a reliable partner in personnel search, selection and temporary employment in the Baltic States. We are Grafton - a world-class company, connecting professionals in their field in various fields. Our goal is to help Clients find the best employee, and Candidates - the job of their dreams!
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