Go Developer

HeadHR; Warszawa; Hybrid; PLN 180,000 - 260,000; Full time

Job summary

Andersen is hiring a Go Developer to build a global digital platform and scalable backend for insurance and assistance. You will own the backend for multiple apps, advancing a gRPC-based microservices architecture.

The role requires strong Go expertise, PostgreSQL skills, and experience with event-driven architectures using RabbitMQ or Kafka, plus testing and observability.

Qualifications

• 5+ years commercial development with 3+ years Go in production.
• Computer Science degree is required.
• Fintech/banking domain experience with complex integrations is a plus.
• Experience with concurrency: goroutines and channels; microservices with gRPC.
• Containerizing and deploying backend services (Docker/Kubernetes).
• Strong PostgreSQL skills including schema design and migrations.
• RabbitMQ or Kafka for event-driven architectures.
• Experience designing REST APIs and testing (unit/integration).
• Observability with Grafana/Prometheus for monitoring.
• English level: Upper-Intermediate.

Responsibilities

• Build and evolve a real-time cross-selling platform with live data flows.
• Own the backend for multiple user-facing apps with gRPC microservices.
• Design and maintain REST and gRPC APIs for core platforms.
• Model transactional data in PostgreSQL with audit trails.
• Implement event-driven workflows using RabbitMQ or Kafka.
• Write and maintain unit and integration tests for backend services.
• Instrument services with Grafana/Prometheus and monitor key flows.
• Participate in code reviews and architecture decisions; focus on scalability.

Skills

Go in production

Goroutines & channels

Microservices

REST API design

Unit tests

Agile/Scrum

PostgreSQL

RabbitMQ/Kafka

Observability

Code reviews

Education

Computer Science degree

Tools

Docker

Kubernetes

Grafana

Prometheus

Job description

Andersen is hiring a Go Developer to build a global digital platform and scalable backend for the insurance and assistance industry.

Our client is a global financial and protection services firm delivering diverse solutions.

The project builds a global digital platform for insurance and assistance (travel, auto, health), delivering scalable, reliable services that enhance customer experience and operations.

Responsibilities:

• Build and evolve a real-time cross-selling platform with live data flows and personalized offers in insurance.
• Own the backend for multiple user-facing apps, advancing a gRPC-based microservices architecture.
• Design andmaintainREST and gRPC APIs for core platforms and third-party services (risk scoring, KYC, payments).
• Model and manage transactional data in PostgreSQL (policies, claims, customer records) with audit trails.
• Implement event-driven workflows using RabbitMQ or Kafka for claims, policy updates, and notifications.
• Write andmaintainunit and integration tests, focusing on monetary calculations and claims/premium accuracy.
• Instrument services with Grafana/Prometheus; monitor critical flows to preempt issues.
• Contribute to code reviews and architectural decisions; emphasize scalability, availability, and resilience in Agile/Scrum.

Kogo poszukujemy?

Must-haves:

• 5+ years commercial development including 3+ years Go in production.
• Computer Science degree.
• Implementing AI in teams.
• Experience ofworking in fintech/banking domans with complex integrations.
• Concurrency: goroutines/channels; microservices with gRPC.
• Experience with containerizing and deploying backend services.
• Strong knowledge of PostgreSQL (schema design, query optimization, database migrations).
• RabbitMQ/Kafka for event-driven architectures.
• Experience designing and implementing REST APIs.
• Practical experience writing unit and integration tests for backend services.
• Experience instrumenting services with Grafana and Prometheus, including metrics collection, monitoring, and alerting.
• Experience designing scalable,highly availablesystems capable of handling high-throughput, real-time workloads.
• Active participation in code reviews, with a strong focus on code quality and knowledge sharing.
• Experience working in Agile/Scrum development environments.
• Fault-tolerant design, idempotency, SLA considerations.
• Level of English – from Upper-Intermediate.

Nice to have

• Experience in insurance and regulated domains; familiarity with GDPR/PCI DSS; understanding of policies, underwriting, and claims lifecycle.