Java Full-Stack Developer (B2B Contract) Hybrid (Gdansk/Warsaw)

Dear Consultant,

We are supporting a global leader in digital payments and financial technology in hiring a Senior Java Full-Stack Developer.

You will design and deliver enterprise-grade platforms used globally, collaborating with international engineering teams and contributing to high-availability systems at scale.Please send CV to (marcillina.tietjen@dcvtechnologies.co.uk) if you are interested.

Title: Senior Java Full-Stack Developer –

B2B Contract

Location: Poland ( Hybrid)

Industry: Global Payments & Financial Technology

Model: Direct B2B

Shift: Standard (with collaboration across global distributed teams)

Start: ASAP

Responsibilities

• Design, develop, and maintain enterprise-scale applications using Java, C#, Python, Angular, React, and related technologies.

• Build, test, and optimize RESTful APIs (REST/JSON).

• Ensure compliance with security standards, coding guidelines, and best practices across the SDLC.

• Conduct root-cause analysis and resolve complex technical issues.

• Work with Jira, ServiceNow, and Splunk for ticketing, monitoring, and log analysis.

• Collaborate closely with distributed global teams to deliver high-quality solutions.

• Manage multiple concurrent tasks and meet delivery deadlines.

Requirements

• Bachelor’s degree in Computer Science, Software Engineering, or related field.

• 7+ years of hands-on development experience.

• Strong experience in Java, REST API development, and modern frontend frameworks (Angular/React).

• Experience with C# or Python is a plus.

• Strong understanding of multi-tier architecture, HTTP, REST, JSON, and web technologies.

• Proven experience in enterprise-scale development and API integrations.

• Strong analytical and problem-solving skills with the ability to conduct root-cause analysis.

• Excellent written and verbal communication skills.

• Ability to work in fast-paced, global environments and adapt to new technologies quickly.

Nice to Have

• Experience in the payments/fintech ecosystem.

• Exposure to cloud (AWS/GCP/Azure).

• Experience with CI/CD pipelines and containerization.

Contract Details

• Model: B2B

• Duration: Long-term extensions expected

• Location: Poland (Remote / Hybrid)

• Team: Distributed global engineering teams

• Start: ASAP