NDA, AdTech | Middle Full-Stack Developer

Posted Yesterday
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Warsaw, Warszawa, Mazowieckie, POL
In-Office
Mid level
HR Tech • Information Technology • Professional Services
The Role
Design, build, and maintain scalable full-stack AdTech systems. Implement backend services (Java Spring Boot, NestJS/TypeScript), RESTful and event-driven APIs, and Angular frontends. Improve observability, write unit/integration/E2E tests, handle production debugging and scaling, and participate in architecture and design reviews.
Summary Generated by Built In

On behalf of NDA, AdTech, SD Solutions is looking for a talented Full-Stack Developer.

SD Solutions is a staffing company operating globally. Contact us to get more details about the benefits we offer.

Responsibilities:

  • You will be responsible for owning our end-to-end development process, from design to production, contributing to platform infrastructure and architectural decisions, and help driving best practices in system design, code quality and AI-assisted development.
  • You will design and implement scalable backend services in Java (Spring Boot) and NestJS (Node.js/TypeScript), build RESTful and event-driven APIs, and develop reliable systems supporting publishers management, bidding logic, reporting, and customer-facing dashboards.
  • You will build and maintain modern frontend applications using Angular (15+), ensuring seamless integration with backend services and consistent UX performance.
  • You will engage in research of core technologies, integrations with external APIs and third-party services, and provide effective solutions to production and scalability challenges.
  • You will write high-quality, testable code (unit, integration, E2E), improve observability (logs, metrics, tracing), and actively participate in design reviews and technical discussions.

Requirements:

  • 4+ years of experience developing enterprise web applications and distributed systems in production
  • Experience designing and implementing scalable web system architectures
  • Solid understanding of REST APIs, async processing, and clean architecture principles
  • Experience monitoring, debugging, and supporting production systems
  • Experience with Java (Spring Boot)
  • Experience with Node.js (TypeScript, NestJS) – advantage
  • Experience with modern UI frameworks (Angular, Vue, React) – big advantage
  • Experience with relational and non-relational databases (MySQL, Vertica, Redis, Elasticsearch)
  • Highly motivated team player with strong interpersonal skills and a “can-do” attitude
  • Self-starter, able to work independently and multitask effectively
  • Passionate about learning new technologies
  • BSc in Computer Science or equivalent

About the company:

We are a leading AdTech company building innovative solutions that help brands, agencies, and publishers better understand and engage their audiences across multiple digital channels. Our platform combines advanced data capabilities, analytics, and automation to enable smarter advertising decisions and measurable business outcomes. We operate in a fast-paced, technology-driven environment where innovation, collaboration, and ownership are highly valued. 

Our teams work on large-scale products that process vast amounts of data and serve clients worldwide. We continuously invest in cutting-edge technologies to create scalable, high-performance solutions that shape the future of digital advertising. As we grow, we are looking for talented professionals who are passionate about solving complex challenges and making a meaningful impact.

By applying for this position, you agree to the terms outlined in our Privacy Policy. Please take a moment to review our Privacy Policy https://sd-solutions.breezy.hr/privacy-notice, and make sure you understand its contents. If you have any questions or concerns regarding our Privacy Policy, please feel free to contact us.

Skills Required

  • 4+ years developing enterprise web applications and distributed systems in production
  • Experience designing and implementing scalable web system architectures
  • Solid understanding of REST APIs, asynchronous processing, and clean architecture principles
  • Experience monitoring, debugging, and supporting production systems
  • Experience with Java and Spring Boot
  • Experience with Node.js, TypeScript, and NestJS
  • Experience with modern UI frameworks (Angular, Vue, React)
  • Experience building and maintaining frontend applications using Angular (15+)
  • Experience with relational and non-relational databases (MySQL, Vertica, Redis, Elasticsearch)
  • Ability to write high-quality, testable code (unit, integration, E2E)
  • Experience improving observability (logs, metrics, tracing)
  • BSc in Computer Science or equivalent
  • Strong interpersonal skills, self-starter, able to work independently and multitask
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The Company
452 Employees
Year Founded: 2014

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