Senior Software Engineer — MQE (Adtech)

TL;DR

Senior Software Engineer (C#/.NET): Building and optimizing supply quality assessment and optimization systems for a global programmatic advertising platform with an accent on deduplication, supply path analysis, and real-time decisioning. Focus on identity resolution across fragmented supply chains, statistical modeling, and implementing high-scale backend services.

Location: Bellevue or San Jose, USA

Salary: $124,900 — $228,900 USD

Company

hirify.global is a global technology company and the world’s leading independent platform for digital advertising.

What you will do

• Develop systems to assess, measure, and optimize supply quality across the programmatic ecosystem.
• Implement deduplication, supply path analysis, and quality modeling to ensure optimal impression buying.
• Create tooling that turns quality signals into real-time decisions at platform scale.
• Build data-heavy backend services and pipelines using C# / .NET, Python, and SQL.
• Partner with product, data, and platform teams across multiple time zones to drive measurable business impact.

Requirements

• 7+ years of software development or engineering experience.
• Proficiency in C# / .NET.
• Strong experience with distributed systems and data-heavy backend work.
• Solid grasp of computer science and engineering fundamentals.
• Ability to communicate effectively with both technical and non-technical audiences.
• Experience working on an agile, distributed team across time zones.

Nice to have

• Experience with GraphQL or REST API design.
• Knowledge of large-scale data processing frameworks (e.g., Apache Spark) or workflow orchestration tools (e.g., Apache Airflow).
• Familiarity with Kubernetes, Kafka, and microservices architecture.
• Experience with database engines such as MS SQL Server, PostgreSQL, Aerospike, Vertica, or Redis.
• Python proficiency for data work or automation.

Culture & Benefits

• Comprehensive healthcare (medical, dental, vision) with premiums paid in full for employees and dependents.
• Retirement benefits including a 401k plan with company match.
• Generous paid time off: up to 160 hours of vacation and 13 paid holidays per year.
• Financial incentives through stock-based compensation grants and an Employee Stock Purchase Plan.
• Support for professional growth via tuition reimbursement and well-being benefits.
• Collaborative culture that values curiosity, trust-building, and a gritty pursuit of excellence.