Principal Software Engineer (AI)

TL;DR

Principal Software Engineer (AI): Designing and developing distributed data infrastructure, APIs, and personalization pipelines that power Copilot’s intelligence with an accent on privacy, security, performance, and scale. Focus on architecting solutions for context-aware experiences, solving complex technical issues, and building world-class consumer products.

Location: Redmond, United States. Starting January 26, 2026, employees residing within a 50-mile commute of a designated Microsoft office in the U.S. or 25-mile commute of a non-U.S., country-specific location are expected to work from the office at least four days per week.

Salary: USD $163,000 – $296,400 per year.

Company

hirify.global aims to build intelligent systems that deeply understand users and adapt across agents, applications, services, and infrastructure.

What you will do

• Architect scalable, low-latency systems for ingesting, processing, and serving personalized signals.
• Design data models and APIs that enable Copilot to reason about user context, preferences, and history.
• Build real-time and batch personalization engines that adapt Copilot’s behavior.
• Collaborate with privacy, security, and responsible AI teams to ensure personalization is safe, transparent, and user-controlled.
• Optimize for performance, reliability, and cost across diverse workloads and geographies.
• Ship high-quality, well-tested, secure, and maintainable code.

Requirements

• 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.
• English: B2 required.

Nice to have

• 4+ years’ experience building scalable services, including securing applications and infrastructure on top of cloud infrastructure like Azure, AWS, or GCP.
• 3+ years’ experience in OSS data technology, such as Kafka, Spark, Flink.
• Experience with large scale data systems.
• Experience working with AI platforms, frameworks, and APIs.
• Experience using Machine Learning frameworks, including deploying and scaling language learning models.

Culture & Benefits

• Microsoft's mission is to empower every person and every organization to achieve more.
• A growth mindset, innovation, and collaboration are core values.
• The company fosters a culture of inclusion, respect, integrity, and accountability.