Job opportunity: Senior Java Backend Architect (AdTech)

Senior Java Backend Architect (AdTech)

Ukraine · Full-time · Senior

About The Company

MWDN is a global IT outstaffing company with 23+ years of experience that connects exceptional tech talent with leading companies across Israel, the USA, Great Britain, and Western Europe. We offer opportunities to work on international products in a stable and professional environment.

What is your new project?

Domain: AdTech
Location: Israel
Company size: 10-20 employees
Founded in: 2022

What makes this project exciting?

Are you ready to join a fast-growing AdTech company that is redefining the way brands connect with audiences across digital channels? Our client is building a powerful programmatic advertising platform that helps businesses maximize campaign performance through advanced targeting, real-time optimization, and data-driven decision-making.

Imagine working with cutting-edge advertising technology that reaches users across mobile, web, video, and connected TV environments. You'll be part of a team focused on innovation, transparency, and measurable results!

What makes you a great fit

5-7+ years of strong commercial Java backend development experience
Must be a very strong hands-on Java programmer with proven ability to write complex, high-performance code
Mandatory practical experience in the AdTech domain: DSP, SSP, Ad Exchange, Ad Server, or Programmatic Advertising systems
Solid experience designing and developing high-load real-time systems (RTB, OpenRTB, auction engines, etc.)
Excellent expertise in: Spring Boot, Hibernate, MongoDB, ClickHouse (or similar technologies)
Strong experience with Docker, Kubernetes, CI/CD pipelines, and monitoring tools
Good understanding of programmatic advertising concepts, real-time data processing, and privacy regulations (GDPR/CCPA)
Ability to work both at the architecture level and dive deep into coding complex features
English: Intermediate level (B1/B2) — sufficient for reading technical documentation and participating in basic technical discussions

Will be a plus:

Experience building or significantly redesigning DSP/SSP/Ad Exchange systems
Previous role as Backend Architect or Technical Lead with a strong coding focus
Knowledge of machine learning in advertising (bidding optimization, look-alike modeling, etc.)

Your day-to-day in this position

Hands-on development and full architectural ownership of the backend of the DSP Programmatics platform
Design and implementation of high-load, low-latency systems for real-time bidding, auction logic, ad serving, targeting, data processing, and other core components
Writing clean, high-performance, production-ready Java code daily
Building a scalable backend architecture capable of processing millions of requests per second
Deep performance optimization, latency reduction, refactoring, and technical debt elimination
Integration with SSPs, Ad Exchanges, DMPs, Ad Servers, and external advertising platforms
Defining technical standards, architecture decisions, and best practices for the backend
Technical mentoring of other backend developers through code reviews and knowledge sharing