Senior Fullstack Developer Java with Angular (f/m/x)

Sii Poland; Warszawa; Hybrid; PLN 180,000 - 300,000; Full time

Benefits offered by this job

Great Place to Work

Profit sharing

Medical care

Centre of internal trainings

Many experts you can learn from

Open management

Job summary

Sii Poland is seeking a Senior Full Stack Developer with strong Java and Angular expertise to join our dynamic team in Warsaw. You will design, develop, and maintain digital platforms used globally by employees, clients, and drivers, working in an Agile environment with close collaboration across corporate and local stakeholders.

You will lead backend and frontend development, craft secure, scalable solutions, review code, and contribute to testing strategies.

Qualifications

• 5+ years experience as a Full Stack Java Developer with Angular.
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Responsibilities

• Develop backend and frontend components of the application.
• Design, develop, and maintain secure, scalable software solutions.
• Analyze business requirements and translate them into technical solutions.
• Optimize and refactor existing codebases to improve stability, efficiency and readability.
• Support software integration and configuration activities.
• Define and execute testing strategies to ensure reliability before release.
• Maintain and update technical documentation reflecting system changes.
• Engage in technical discussions and contribute to solution design.
• Collaborate effectively with colleagues across teams and locations.

Skills

Java

Spring Framework

Angular

API development

CI/CD

Testing frameworks

Agile methodologies

Code reviews

English (written & spoken)

Team collaboration

Tools

CI/CD pipelines

Testing frameworks

Job description

We are looking for a Senior Full Stack Developer with strong expertise in Java and Angular to join our dynamic team. The project involves designing, developing, and maintaining cutting-edge digital platforms used globally by employees, clients, and drivers. Working in an Agile environment, the team partners closely with both corporate and local stakeholders to deliver innovative solutions that enhance connected vehicle services, fleet management, and self-service mobility experiences.

Your tasks

• Developing backend and frontend components of the application
• Designing, developing, and maintaining high-quality, secure, and scalable software solutions
• Analysing business requirements and translating them into technical solutions
• Optimizing and refactoring existing codebases to improve stability, efficiency, and readability
• Supporting software integration and configuration activities
• Defining and executing testing strategies to ensure software reliability and quality before release
• Maintaining and updating technical documentation to reflect system changes and improvements
• Engaging in technical discussions and contributing to solution design
• Collaborating effectively with colleagues across different teams and locations

Requirements

• At least 5 years of experience as a Full Stack Java Developer with Angular
• Strong skills in Java and Spring Framework for backend development
• Solid experience with Angular (latest versions preferred) for frontend development
• Strong knowledge of software design principles, secure coding practices, and API development
• Familiarity with testing frameworks and CI/CD pipelines
• Proficiency in creating technical designs, test cases, and conducting code reviews
• Good understanding of Agile methodologies
• Fluency in English, both written and spoken
• Openness to commuting to the office in Warsaw 2 days a week
• Fluent Polish required
• Residing in Poland required

Job no. JOB-RYBEC

Sii ensures that all hiring decisions are made solely on the basis of qualifications and competence. We are committed to equal and fair treatment of all, regardless of legally protected characteristics. At Sii, we promote a diverse and inclusive work environment, in full compliance with applicable anti-discrimination laws.

Benefits For You

• Great Place to Work
• Solid financial situation
• Contracts with the biggest brands
• Centre of internal trainings
• Many experts you can learn from
• Open and accessible management team
• Profit sharing
• Passion Sponsorship program
• Regular integration events and trips
• Comfortable and well-equipped offices
• MySii app
• Medical care