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SimplePin

Senior Java Software Engineer

SimplePin
Poland · Full-time · Mid-Senior

Company Description

SimplePin revolutionizes financial operations for the insurance industry through its platform, designed to simplify complex workflows.


What you'll do

  • Design and develop backend services using Java and Spring Boot.
  • Deliver clean, maintainable code with strong ownership, refactoring, and code reviews.
  • Build and maintain REST APIs (and integrations with internal/external systems).
  • Work with transactions, concurrency, caching, and performance optimization.
  • Improve engineering quality through unit and integration testing (TDD is a strong plus).
  • Participate in architectural decisions around AWS infrastructure, serving as a rotation partner for the solutions architect.
  • Contribute to technical decisions and drive best practices.

Requirements

  • 5+ years of commercial experience with Java (8/11/17+).
  • Strong experience with Spring / Spring Boot (DI, bean lifecycle, configuration, scopes).
  • Solid knowledge of Java Collections.
  • Good understanding of JVM fundamentals.
  • Strong grasp of OOP, SOLID principles, Dependency Inversion, and common design patterns.
  • Hands-on testing experience: JUnit, Mockito (or equivalent), writing testable code.
  • Experience working with relational databases: SQL, transactions, and JPA/Hibernate.
  • Comfortable with Git and modern development workflows (code review, CI/CD usage).
  • Hands-on AWS Cloud experience (EC2, ECS/EKS, RDS, SQS/SNS, S3, IAM, CloudWatch) with the ability to make architectural and infrastructure decisions.
  • Microservices architecture and messaging systems.

Nice to have

  • Caching: Redis and caching strategies (TTL/invalidation).
  • Observability: structured logging, metrics, tracing.
  • Deep understanding of Spring AOP/Aspects and Spring proxy behavior.
  • AWS certifications (Solutions Architect Associate/Professional).
  • Experience working with Angular and TypeScript.

What we offer

  • Competitive compensation.
  • Remote-friendly culture.
  • Paid vacation.
  • Strong engineering culture: quality, automation, and ownership.

Key Skills

Ranked by relevance

java aws spring boot angular redis cloud junit cicd git tdd sql jvm oop s3
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Posted
Jul 07, 2026
Type
Full-time
Level
Mid-Senior
Location
Poland
Company
SimplePin

Industries

Financial Services

Categories

Engineering Information Technology

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