Full Stack Developer (Java, Angular)

b2bnetwork; Warszawa; On-site; PLN 180,000 - 240,000; Full time

Job summary

b2bnetwork in Warszawa is seeking an experienced Full Stack Java Developer to design, develop, and maintain internet-facing Commercial Cards applications. You will work on microservices, REST APIs, and secure, scalable solutions within an Agile team.

Responsibilities include coding in Java/Spring Boot and Angular, implementing security best practices, and supporting CI/CD with Git, Bitbucket, Jenkins. You will explore AI tools to boost productivity and quality.

Qualifications

• 5+ years of Full Stack Java development experience.
• Java, Spring Boot, Microservices, REST APIs.
• Angular and Angular Material.
• Kafka and SQL databases.
• Docker and Kubernetes; Git, Bitbucket, Jenkins; CI/CD.
• Agile/Scrum way of working.
• Experience resolving SAST, container scan, and security vulnerabilities.
• Knowledge of secure coding and OWASP principles.
• Strong troubleshooting and problem-solving skills.
• English (B1+/B2 or higher).
• Must have some basic knowledge on using AI tools or willing to explore.

Responsibilities

• Design, develop, test, and maintain applications using Java, Spring Boot, Angular, Kafka, SQL, Docker, and Kubernetes.
• Develop and enhance microservices-based solutions following clean code principles and best practices.
• Build and maintain REST APIs and integrations with internal and external systems.
• Participate actively in Agile/Scrum ceremonies, including planning, refinement, reviews, and retrospectives.
• Collaborate with Product Owners, Analysts, Architects, Security Specialists, and Operations teams to deliver value.
• Analyze, troubleshoot, and resolve defects, incidents, and production issues.
• Identify and remediate security vulnerabilities detected through security assessments.
• Drive secure coding practices and improve security posture.
• Support CI/CD processes using Git, Bitbucket, and Jenkins for reliable delivery.
• Optimize performance, scalability, resilience, and maintainability.
• Create and maintain technical documentation and guidelines.
• Contribute to continuous improvement in development, automation, QA, and security.
• Work independently while collaborating in a cross-functional Agile team.
• Leverage AI-powered tools like GitHub Copilot and Microsoft 365 Copilot to improve efficiency and quality.
• Explore AI agents and intelligent automation to enhance delivery and value in Cards domain.

Skills

Full Stack Java

Java

Spring Boot

Angular

Kafka

SQL

Docker

Kubernetes

CI/CD

Agile/Scrum

Security vulnerabilities

OWASP

AI tools

English B1+

Tools

Git

Bitbucket

Jenkins

Job description

The consultant will work as a Full Stack Java Developer within the Cards Service Domain, focusing on the development, maintenance, and continuous improvement of internet-facing Commercial Cards applications. The role involves designing and implementing new functionalities, enhancing existing solutions, and ensuring high availability, performance, and security of business-critical applications.

Key responsibilities include:

• Design, develop, test, and maintain applications using Java, Spring Boot, Angular, Kafka, SQL, Docker, and Kubernetes.
• Develop and enhance microservices-based solutions following clean code principles and best practices.
• Build and maintain REST APIs and integrations with internal and external systems.
• Participate actively in Agile/Scrum ceremonies, including planning, refinement, reviews, and retrospectives.
• Collaborate closely with Product Owners, Analysts, Architects, Security Specialists, and Operations teams to deliver business value.
• Analyze, troubleshoot, and resolve application defects, incidents, and production issues.
• Identify and remediate security vulnerabilities detected through SAST, container scanning, dependency scanning, penetration testing, and other security assessments.
• Drive secure coding practices and contribute to improving the security posture of internet-facing applications.
• Support CI/CD processes using tools such as Git, Bitbucket, and Jenkins to enable efficient and reliable software delivery.
• Optimize application performance, scalability, resilience, and maintainability.
• Create and maintain technical documentation, including solution designs, operational documentation, and implementation guidelines.
• Contribute to continuous improvement initiatives related to development practices, automation, quality assurance, and security.
• The consultant is expected to work independently while collaborating effectively within a cross-functional Agile team and contribute to both feature delivery and ongoing application lifecycle management activities.
• Leverage AI-powered tools and solutions, such as GitHub Copilot and Microsoft 365 Copilot, to improve development efficiency, code quality, documentation, testing, and vulnerability remediation activities.
• Explore and contribute to the adoption of AI agents and intelligent automation solutions that enhance software delivery, operational support, and business value creation within the Cards domain.

Must-have knowledge and experience

• 1. 5+ years of Full Stack Java development experience and ability to test the changes developed.
• 2. Java, Spring Boot, Microservices, REST APIs
• 3. Angular and Angular Material
• 4. Kafka and SQL databases
• 5. Docker and Kubernetes Git, Bitbucket, Jenkins, CI/CD
• 6. Agile/Scrum way of working
• 7. Experience resolving SAST, container scan, and security vulnerabilities
• 8. Knowledge of secure coding and OWASP principles
• 9. Strong troubleshooting and problem-solving skills
• 10. English (B1+/B2 or higher)
• 11. Must have some basic knowledge on using AI tools or willing to explore

Nice-to-have knowledge and experience

• 1. Experience in banking, cards, or payments domain
• 2. Experience with cloud platforms
• 3. DevSecOps and vulnerability management experience
• 4. Performance tuning and application monitoring
• 5. Technical mentoring and coaching experience