Principal Architect Bangalore Karnataka India Date postedSep 24 2025 Job number1882191 Work site4 days week in-office Travel0-25 Role typeIndividual Contributor ProfessionSoftware Engineering DisciplineSoftware Engineering Employment typeFull-Time Overview Microsoft Ads powers one of the world s largest digital advertising ecosystems delivering billions of recommendations every day to users worldwide We are seeking a Principal Architect to advance the next generation of distributed systems that power ad retrieval ranking moderation and generation at web scale You will also build evaluation frameworks enable agentic platforms leveraging LLMs and SLMs to reason adapt and take multi-step actions unlocking measurable impact for our advertisers and users Microsoft s mission is to empower every person and every organization on the planet to achieve more As employees we come together with a growth mindset innovate to empower others and collaborate to realize our shared goals Each day we build on our values of respect integrity and accountability to create a culture of inclusion where everyone can thrive at work and beyond Qualifications Required Qualifications Bachelor s Degree in Computer Science or related technical field AND 8 years technical engineering experience with coding in languages including but not limited to C C C Java JavaScript or Python OR equivalent experience Proven experience building and shipping large-scale distributed systems and infrastructure services Experience with large-scale data systems optimizations and distributed system design Solid organization prioritization and communication skills to drive clarity and alignment across teams Track record of delivering high-impact systems within timelines and raising the technical bar for the organization Other Requirements Ability to meet Microsoft customer and or government security screening requirements are required for this role These requirements include but are not limited to the following specialized security screenings Microsoft Cloud Background Check This position will be required to pass the Microsoft Cloud background check upon hire transfer and every two years thereafter Preferred Qualifications Master s Degree in Computer Science or related technical field AND 12 years technical engineering experience with coding in languages including but not limited to C C C Java JavaScript or Python OR Bachelor s Degree in Computer Science or related technical field AND 15 years technical engineering experience with coding in languages including but not limited to C C C Java JavaScript or Python OR equivalent experience Expertise in ML systems design including training pipelines offline online serving and optimization for cost latency and throughput Thought leadership in systems or ML architecture MicrosoftAI Responsibilities Advance large-scale distributed AI platform to improve usability scalability reliability efficiency and architectural clarity Take R D ideas from concept to production delivering measurable business impact and better user experiences at scale Act as the go-to expert for critical issues unblock projects and ensure architectural integrity and long-term sustainability Develop and drive metrics frameworks to measure system performance model quality and overall platform effectiveness enabling continuous improvement and data-driven decision making Design and evolve agent-based workflows leveraging LLMs and SLMs enabling reasoning-capable adaptive multi-step decision-making systems Mentor technical leads and senior engineers fostering a culture of engineering excellence Align with partner teams on strategy roadmaps and timelines to ensure end-to-end delivery Provide technical direction and ensure timely high-quality delivery of complex multi-quarter initiatives Perks perks listed below may vary depending on the nature of your employment with Microsoft and the country where you work Industry leading healthcare Educational resources Discounts on products and services Savings and investments Maternity and paternity leave Generous time away Giving programs Opportunities to network and connect Microsoft is an equal opportunity employer All qualified applicants will receive consideration for employment without regard to age ancestry citizenship color family or medical care leave gender identity or expression genetic information immigration status marital status medical condition national origin physical or mental disability political affiliation protected veteran or military status race ethnicity religion sex including pregnancy sexual orientation or any other characteristic protected by applicable local laws regulations and ordinances If you need assistance and or a reasonable accommodation due to a disability during the application process read more about requesting accommodations

📌 Principal Architect (Karnataka)
🏢 Microsoft
📍 Karnataka