Senior Java Backend Developer (B2B Contract)

Warszawa, Poland
Warszawa
Tech
Freelancer

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Ask your question to Hanna Sukiennik

Your responsibilities will include:

Developing applications using Java technology,
Ensuring code quality and performing code reviews,
Participating in deployment processes,
Identifying and communicating alternative technical solutions,
Upholding standards, best practices, and technical quality assurance processes, including documentation and code review,
Identifying and communicating technical debt.

This opportunity is for you if:

You have at least 5 years of commercial experience,
You demonstrate hands-on experience with Spring Boot, Java, GitLab, MS SQL, REST, and SOAP,
You have experience with Docker, Kubernetes, or OpenShift,
You want to be involved in the full software development lifecycle (from analysis through development to maintenance/support of your application),
You have a solid understanding of microservices architecture and experience in projects based on this approach,
You are familiar with Kafka, RabbitMQ, or similar messaging systems,
You take ownership and responsibility for your applications,
You are comfortable working in an Agile Scrum environment,
You adapt quickly to new conditions and technological changes,
You are proactive, open to change, and possess excellent communication skills.

Nice to have:

Experience working with Jira and Confluence,
Familiarity with Prometheus, Grafana, Elasticsearch – especially in the context of monitoring setup,
Willingness to contribute to internal organizational development (e.g., CI/CD tools and processes).

Benefits that will make you smile:

Hybrid work model with flexible working hours,
Comprehensive onboarding process – our engineers receive dedicated support to navigate the Business Technology area at NN,
We embrace Open Source technologies and work in Agile methodology and DevOps culture,
Exclusive discounts on Samsung products,
Passionate about sports or fitness? Join our sports section,
Prefer cycling to the office? We’ve got you covered with top-notch bike-friendly infrastructure.

At NN, we believe our strength lies in embracing the full spectrum of humanity. We recognise each person’s uniqueness and contributions which empowers us to succeed as individuals, as teams, and as a company. Diversity, Equity, and Inclusion is embedded in our culture which is guided by our values — care, clear, commit — and supports us in fostering a workplace where everyone feels welcome, respected, and proud to work.

Be you. You have our support.