Full Stack Engineer

SD Solutions; Warszawa; On-site; PLN 240,000 - 320,000; Full time

Job summary

SD Solutions, on behalf of AdTech Client #1, is seeking a talented Full-Stack Developer with a focus on Back-End (Angular, Java). You will own core features from design through delivery and collaborate with cross-functional teams to build scalable web applications.

The role emphasizes Java/Spring Boot backend development, RESTful APIs, and both relational and non-relational databases. You will also mentor peers, contribute to architecture decisions, and ensure high-quality, responsive interfaces

Qualifications

• 6+ years in software development with a strong backend focus.
• Experience designing web architectures and scalable systems.
• At least 3 years backend development in Java with Spring Boot.
• Experience delivering web applications and RESTful APIs.
• Working with both relational and non-relational databases.
• Familiarity with Linux environments.
• Strong communication in English and collaboration skills.

Responsibilities

• Plan and own core features end-to-end across the development cycle.
• Collaborate with cross-functional teams on design and architecture decisions.
• Build intuitive, responsive user interfaces from scratch.
• Contribute to a new audience-targeting system leveraging Live TV, streaming, and Ads.
• Refactor system components with modern technologies for performance.
• Mentor and lead other developers on complex projects.

Skills

6+ years experience

English communication

Team leadership

Education

BSc in Computer Science or equivalent

Tools

Spring Boot

Angular

RESTful APIs

Relational & NoSQL databases

Job description

On behalf of AdTech Client #1, SD Solutions is looking for a talented Full-Stack Developer with a focus on Back-End (Angular, Java).

Responsibilities

• Plan, implement, and take full ownership of core features, ensuring successful completion of the entire development cycle.
• Collaborate with cross-functional teams to contribute to design and architecture decisions.
• Create and integrate user interfaces from scratch, ensuring intuitive and responsive designs.
• Play a major role in developing our new audience-targeting system, which is based on viewing Live TV, streaming services, and Ads.
• Participate in refactoring system components, using the latest technologies to improve performance and stability.
• Lead and mentor other developers, providing guidance and expertise on complex projects.

Requirements

• 6+ years of experience in software development.
• Experience in designing and implementing architecture for web systems.
• At least 3 years of backend development experience with Java (Spring Boot).
• Experience in developing web applications and RESTful APIs.
• Experience working with both relational and non-relational databases.
• Familiarity with a Linux environment.
• A team player with a self-motivated mindset, ready to take on challenges and drive projects to successful outcomes.
• Excellent communication skills with fluency in spoken and written English.

Preferred Qualifications

• Experience with modern UI frameworks (ReactJS, Vue, Angular).
• BSc in Computer Science or equivalent.

About the company

A large-scale advertising technology company building audience intelligence and campaign automation tools for brands, agencies, and publishers across multiple digital channels. The platform processes vast data volumes to enable programmatic decisions and measurable business outcomes at a global level.