Senior Java Backend Architect (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.

Here’s what you can expect when you join MWDN:

• Security: We carefully vet our clients to minimize risks and ensure reliability and timely payments—no fraud or unpleasant surprises.
• Career support: If a project isn’t the right fit, we support you and actively help find new opportunities that match your skills and career goals.
• Legal assistance: We provide guidance on legal matters, including opening and managing your independent contractor or sole proprietorship status, taxes, and related processes.
• Professional development: We offer English courses and professional growth opportunities, as well as team-building events.

Why choose us? MWDN is ranked among the top 5 IT employers in our region according to DOU. We take pride in our transparency and strong commitment to our team. Curious to learn more? See what our employees say about working with us on DOU.

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

• 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.)

• 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