Full Stack Developer with Java
ING Hubs Poland · Katowice, Śląskie, Poland
Full Stack Engineering
About this role
The candidate will build and evolve user-facing applications providing sustainability insights and portfolio steering capabilities. Responsibilities include developing backend services, APIs, and integrations for sustainability-related data processing. The role involves collaborating with Product Owners, UX Engineers, and Data Analysts to transform requirements into scalable digital products. The technical environment involves JVM-based technologies like Java or Kotlin, React, and TypeScript, alongside relational databases and CI/CD pipelines. The engineer will also contribute to architectural decisions, mentor colleagues, and improve engineering standards.
Skills & technologies
Must have
- Java
- Kotlin
- TypeScript
- React
- REST API
- Object-Oriented Design
- Design Patterns
- Clean Code
- Relational Databases
- CI/CD
- Agile
Nice to have
- Cloud-native architectures
- Kubernetes
- Containerisation
- Azure DevOps
- Data Engineering
- ESG
- Sustainability
Read full description
ING Hubs Poland is hiring!
The expected salary for this position: 15 000 - 22 000 PLN gross.
The financial ranges specified in the announcement are adjusted and may differ from the range specified in the remuneration regulations.
Your Day-to-Day
The expected salary for this position: 15 000 - 22 000 PLN gross.
The financial ranges specified in the announcement are adjusted and may differ from the range specified in the remuneration regulations.
Your Day-to-Day
- Build and evolve user-facing applications that provide sustainability insights, portfolio steering capabilities and emissions-related decision support.
- Develop backend services, APIs and integrations that enable the collection, processing and delivery of sustainability-related data.
- Collaborate closely with Product Owners, UX Engineers, Data Analysts, Data Engineers and business stakeholders to transform complex sustainability requirements into scalable digital products.
- Contribute to technical design and architectural decisions, ensuring solutions remain scalable, maintainable and aligned with long-term product goals.
- Support the evolution of the web application landscape as the platform expands across business domains and sustainability sectors.
- Implement automated testing, monitoring and continuous delivery practices to ensure high-quality software delivery.
- Improve engineering standards, reduce technical debt and continuously enhance platform reliability and maintainability.
- Work with data-intensive solutions, visualizations and business workflows that help users understand sustainability performance and climate-transition metrics.
- Mentor colleagues, share knowledge and contribute to raising the engineering maturity of the team.
- Actively challenge existing solutions and identify opportunities for continuous improvement across products, processes and technology.
- Bachelor's degree in Computer Science, Software Engineering, Information Technology, Computer Engineering or a related technical discipline (required).
- Master's degree in a related field is considered a strong advantage.
- Relevant professional certifications in software engineering, cloud technologies, DevOps or solution architecture are considered a plus.
- Extensive experience designing, developing and maintaining modern software applications.
- Strong experience across both front-end and back-end development.
- Experience building scalable web applications and distributed systems.
- Strong proficiency in Java, Kotlin or other JVM-based technologies.
- Experience with modern front-end frameworks and technologies, preferably React and TypeScript.
- Experience designing and integrating REST APIs and service-based architectures.
- Strong understanding of software engineering principles, object-oriented design, design patterns and clean code practices.
- Experience with relational databases and data-driven applications.
- Experience implementing automated testing strategies and quality assurance practices.
- Familiarity with CI/CD pipelines and modern software delivery methodologies.
- Experience working in Agile and multidisciplinary teams.
- Excellent problem-solving, communication and stakeholder-management skills.
- Ability to take ownership of complex topics from discovery through implementation and operational support.
- Demonstrated ability to mentor engineers and positively influence technical decisions.
- Experience with cloud-native architectures, containerisation and Kubernetes-based platforms.
- Experience working with data-intensive products, analytics platforms or reporting solutions.
- Experience building products involving sustainability, ESG, climate or regulatory domains.
- Familiarity with Azure DevOps or similar engineering toolchains.
- Experience contributing to technical roadmaps, architecture evolution and platform strategy.
- Understanding of data engineering concepts, data pipelines and large-scale data processing.
- Experience working within large, international organisations and cross-border teams.
PLN 15,000–PLN 22,000 / monthApply now
