Deloitte
Senior Java API Developer (AWS + ECS)
Szczecin
General Information
Position
Senior Java API Developer (AWS + ECS)
Work arrangement
Full-time
City
Gdansk, Katowice, Krakow, Lodz, Poznan, Rzeszow, Szczecin, Warsaw, Wroclaw
Country
Poland
Department
Consulting
Team
Engineering, AI & Data
Area of interest
Cloud, Consulting
Way of work
Remote
Description & Requirements
Who we are looking for
We are looking for a Java Developer to support the development of enterprise-grade backend services and cloud-native solutions. The role focuses on building and maintaining REST APIs, integration services, and workflow-supporting applications running in AWS environments.
The ideal candidate has solid Java development experience, hands-on exposure to AWS services, and a strong understanding of API design and backend integrations. We welcome both mid-level and senior engineers who are eager to contribute to scalable cloud-based solutions.
Required Qualifications:
- 4+ years of professional experience in Java development
- Strong hands-on experience with Java and backend application development
- Experience designing, developing, and consuming REST APIs
- Practical experience with AWS cloud services
- Experience working with ECS Fargate or containerized applications deployed in AWS
- Experience working with relational and/or NoSQL databases
- Good understanding of Object-Oriented Programming (OOP) principles and software engineering best practices
- Experience with testing, debugging, and application performance optimization
- Familiarity with version control systems and CI/CD practices
- Strong analytical and problem-solving skills
- Ability to work both independently and within cross-functional teams
- Good communication skills English and Polish at least B2+ level
- Valid EU work permit
Preferred Qualifications:
- Experience with microservices and distributed systems
- Experience supporting workflow orchestration, integration platforms, or middleware solutions
- Experience working with enterprise-scale APIs and integrations
- Understanding of event-driven architectures
- Experience in Agile delivery environments
- Knowledge of observability, monitoring, and operational best practices in cloud environments
Preferred Technical Stack / Experience:
- Java
- REST API Development
- AWS
- ECS Fargate
- Database Technologies (Relational and NoSQL)
- Microservices
- CI/CD Pipelines
- Integration and Orchestration Services
Your future role
- The selected candidate will be responsible for:
- Developing and maintaining Java-based backend applications and microservices
- Building and enhancing REST APIs supporting enterprise integrations and channel services
- Developing services supporting workflow orchestration and system integrations
- Implementing and maintaining cloud-native solutions within AWS
- Working with containerized workloads deployed on ECS Fargate
- Collaborating with architects, developers, and business stakeholders to deliver scalable solutions
- Supporting system integration, testing, troubleshooting, and performance optimization
- Working with relational and non-relational databases supporting backend services and integrations
- Participating in code reviews and following engineering best practices, including CI/CD and automated testing
- Supporting platform reliability, scalability, and maintainability in distributed environments
What we offer
- Permanent employment or contract,
- Medical and health insurance,
- Multisport and other lifestyle benefits,
- Friendly coworkers & team spirit,
- Multiple geographies and clients,
- Work for well-known brands,
- Exposure to trailblazing business and technology projects,
- A place in the first line of a digital transformation,
- Everyday opportunities to influence how and where we do our business,
- A development path to fit your needs.
Selection process
- Send your CV in word or pdf format in English.
- Join a quick HR interview
- Attend a Hiring Manager technical interview (online, 60 minutes).
- Attend a second confirming (business & technical) interview (online, 60 minutes).
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