Senior Principal Software Engineer - C, C++, Golang, Linux

Pune💼 Full-time🗓 2026-06-04 → 2026-09-26

Core

Design and implement next-generation, highly scalable and low-latency ad server features handling 1 trillion+ requests per day.

Role type

Senior Principal Software Engineer (Backend Systems)

Builds

High-scale ad server platform and distributed backend services

Domain

Digital Advertising / High-Performance Computing

Deliverable

production ML models | product features | infrastructure

Required skills

C/C++ system programming, Linux/UNIX environment expertise, distributed systems architecture, algorithm design, multi-threading, memory management, GenAI tooling, prompt engineering, database management (MySQL), scripting (Perl/Python/Shell)

Preferred skills

Golang, GenAI integration in product development, OS-level optimization

Technologies

C, C++, Golang, Linux, MySQL, GenAI tools (GitHub Copilot, ChatGPT, Claude, Cursor, Windsurf)

Responsibilities

Lead and mentor engineering teams to solve complex problems, design and build reliable low-latency platforms, research emerging technologies and prepare POCs, collaborate with DevOps and Data Center teams for platform stability, apply GenAI to accelerate development and debugging, review major architectural changes

Seniority

Senior, hands-on IC with team leadership

Sourced via greenhouse · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.

About PubMatic

PubMatic is one of the world’s leading scaled digital advertising platforms, offering more transparent advertising solutions to publishers, media buyers, commerce companies and data owners, allowing them to harness the power and potential of the open internet to drive better business outcomes. Founded in 2006 with the vision that data-driven decisioning would be the future of digital advertising, we enable content creators to run a more profitable advertising business, which in turn allows them to invest back into the multi-screen and multi-format content that consumers demand.