Backend Engineer

• Design and develop scalable, high-performance backend systems using Java 21 and Spring Boot
• Build and optimize REST APIs following best practices in software architecture
• Work within a microservices architecture, ensuring modularity and maintainability
• Manage builds and dependencies using Gradle
• Write and maintain automated tests using JUnit, Mockito, and AssertJ
• Ensure code quality through SonarQube analysis and code review processes
• Work with GitLab for version control and CI/CD pipeline management
• Containerize and deploy services using Docker on AWS
• Implement logging with Logback/SLF4J and monitor systems via Grafana
• Handle asynchronous event-driven communication using Kafka
• Work with PostgreSQL as the primary database and Redis for caching
• Apply strong security principles and best practices throughout the development lifecycle
• Collaborate closely with cross-functional teams in an agile environment

Mid/Senior Java Developer

• Collaborate closely with cross-functional teams, such as backend developers, designers, and product owners, to architect, develop, and deploy robust web applications using Java and Spring Boot.
• Optimize application performance diagnose and resolve issues to ensure a seamless user experience.
• Participate actively in code reviews, offering insightful feedback to maintain code quality and ensure adherence to coding standards and best practices.
• Keep on top of the latest advancements and trends in Java development, particularly in the Spring Boot ecosystem, and propose enhancements to continually improve application performance and maintainability.
• Provide mentorship and guidance to developers, conducting code reviews and fostering a culture of continuous learning and improvement.
• Promotes and applies proven AI-assisted development workflows and researches new AI use cases to improve development efficiency and engineering practices.

Senior Java Developer

• Build and maintain backend services, APIs, webhooks and integration services.
• Develop secure, scalable foundations for multi-tenant education products.
• Build and improve integrations with learning platforms, third-party services, AI providers and internal systems.
• Design reliable data flows for assessment, feedback, learner activity, reporting and operational workflows.
• Build and maintain authentication, authorisation, permissions and audit capabilities appropriate for education products.
• Work with PostgreSQL, BigQuery and modern cloud application infrastructure.
• Build and deploy containerised services in cloud environments.
• Improve reliability, observability, performance and maintainability across backend systems.
• Investigate production issues, identify root causes and implement durable fixes.
• Work closely with Product and AI Engineers to turn product needs into scalable technical systems.
• Engage with education partners where useful to understand real workflows and improve integrations.
• Use AI-assisted development tools appropriately while maintaining strong standards for testing, security and code quality.
• Write clean, tested and maintainable code.

Backend Engineer II

• Building and maintaining high-quality, well-tested code across frontend and backend, with code reviews
• Developing and contributing to the design of reliable, high-performance applications, including services, APIs, and user-facing components
• Owning end-to-end feature development, from design and implementation to deployment and production support
• Designing, developing, and supporting integration services, REST APIs, and event-driven flows using Kafka
• Working with existing monolithic and legacy solutions, supporting their integration and gradual evolution
• Collaborating closely with developers, architects, product roles, and our SaaS vendor to deliver features end-to-end
• Taking ownership of your services, including monitoring, troubleshooting, and incident resolution
• Contributing to improving our technical standards, ways of working, and system design

Software Developer – Full Stack, Backend Focus

• Collaborate with the development team to design, build, and maintain Python-based applications.
• Contribute to all phases of the software development lifecycle, from initial concept and design through to testing and deployment.
• Write clean, efficient, and reusable code that adheres to best practices.
• Debug and troubleshoot issues, ensuring applications are reliable, secure, and performant.
• Participate in code reviews and contribute to continuous improvement of team practices.
• Stay informed about emerging technologies and industry trends.

Backend Engineer jobs in Estonia

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Mid/Senior Java Developer

Senior Java Developer

Backend Engineer II

Software Developer – Full Stack, Backend Focus

Python Web Developer