Senior Java Backend Developer

Position: Senior Java Backend Developer

Location: Romania

Seniority: Senior Level (5+ years of experience)

Language: English

Role Overview

We are looking for an experienced Senior Java backend developer with strong backend expertise in Java 21+, Spring Boot, Hibernate/JPA, SQL, and microservices .

The role involves developing and maintaining complex eMobility applications, integrating services via REST APIs, and contributing to AWS infrastructure and DevOps activities . You will also participate in 3rd Level Support and on-call duty rotation , working closely with the customer and the engineering team.

Key Responsibilities

• Design, develop, and maintain applications using Java 21+, Spring Boot.
• Develop and integrate RESTful APIs and microservices .
• Support and troubleshoot applications and infrastructure running on AWS .
• Write efficient unit tests and ensure high standards of code quality.
• Participate in 3rd Level Support and on-call rotation (1 week every 5–6 weeks).
• Actively contribute to Scrum ceremonies, story refinement, and estimations .

Technical Requirements

Must-have:

• Minimum 5 years of professional Java development experience .
• Strong expertise in Java 21+, Spring Boot, Hibernate/JPA, and SQL .
• Experience developing REST services and complex integrations.
• Experience designing and developing microservices following Clean Code principles.
• Minimum 1 year of hands-on AWS experience (e.g. VPC, Route 53, ELB, ECS, Fargate, IAM, Aurora, DynamoDB, CloudWatch, KMS, NLB/ALB, Lambda, SQS, SNS, ApiGateway).
• Strong experience with Git and unit testing .
• Ability to quickly understand and contribute to large, existing codebases.
• Experience using AI development tools , such as Kiro or Claude Code.

Should-have:

• Hands-on experience with Angular 16+ and Angular Material UI .
• Familiarity with Kafka, Splunk, Grafana, and Prometheus .
• Experience integrating with Identity Providers, Certificate Authorities, or Payment Providers .
• Knowledge of the eMobility domain (OCPP, OCPI, OICP, MSP, CPO, Hubject).

Methodology

Must:

• Strong experience working in Agile/Scrum environments with active team collaboration.
• Willingness to participate in 24x7 on-call support on a rotational basis (1 week every 5–6 weeks).
• Comfortable taking ownership of development, delivery, and production support activities.

Should:

• Experience in DevOps-oriented environments (“You Build It, You Run It”).

Soft Skills

• Pragmatic and solution-oriented, with a strong focus on delivering high-quality software.
• Strong ownership and responsibility for assigned User Stories.
• Able to proactively clarify and challenge requirements during story refinement.
• Willing to travel 1–4 times per year for customer meetings, team events, and workshops.

Education

• AWS Developer Associate / AWS Solutions Architect Associate certification or willingness to obtain it within 6 months of joining.
• University Degree in Computer Science or related field