Senior Java Backend Engineer (AdTech)

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.

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

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!

• 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
• Knowledge of machine learning in advertising (bidding optimization, look-alike modeling, etc.)

• 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

✅ Intro call with a Recruiter — ✅ Client intro interview — ✅ Online test — ✅ Tech client interview — ✅ Final client inteview — ✅ Offer