At OneStream, we're on a mission to empower every Finance organization and professional to exceed their potential. Our global teams span continents, cultures, and time zones, united by a shared purpose as we build the operating system for modern Finance and help organizations move with greater speed, clarity, and confidence.

That mission comes to life through our people. Behind every innovation, customer success, and milestone are talented people working together to make a difference. That's why we're looking for people who are bold enough to think big, authentic in how they lead and collaborate, curious about what's possible, and committed to delivering results.

Want a closer look before you apply? Explore our Careers site to learn more about our people, culture, and benefits.

Summary

As the Senior Manager, Software Engineering of the Platform Development team, you will be leading the design, development, and evolution of the OneStream Platform., as well as a high-impact browser engineering teams responsible for building, optimizing, and evolving modern web-based experiences. This role blends deep technical expertise with strong people leadership

The OneStream Platform spans complex OLAP, multi-dimensional processing, distributed systems, web technologies, and SQL-based architectures. You will lead teams to build highly scalable, performant, and reliable systems that power the Office of the CFO at global enterprises. This is a hands-on leadership role where you are expected to engage in architecture, challenge technical decisions, and elevate engineering quality while building and scaling high-performing teams.

Primary Duties and Responsibilities

Own end-to-end delivery of platform components, from architecture and development through release and optimization.
Lead technical design and architecture across distributed, multi-threaded, and web-based systems.
Maintain hands-on engagement through design reviews, debugging, and solving complex technical challenges.
Ensure high standards for code quality, testing, performance, and maintainability.
Identify and eliminate technical and organizational bottlenecks to improve delivery velocity.
Drive AI enablement across engineering, including adoption of AI-assisted development tools and integration of AI-driven platform capabilities.
Partner with data and AI teams to incorporate models, APIs, and intelligent workflows into the platform.
Establish and promote best practices for responsible AI usage, including security, governance, and data privacy.
Upskill teams on modern development practices, including AI tools and frameworks, and measure impact on productivity and quality.
Own roadmap execution with accountability for timelines, quality, and outcomes.
Balance speed and stability, making informed trade-offs to meet business and technical goals.
Ensure platform observability, monitoring, performance optimization, and operational excellence.
Drive continuous improvement through metrics, retrospectives, and postmortems, ensuring alignment with scalability, reliability, and security standards.
Collaborate closely with Product Management, Architecture, and cross-functional engineering teams.
Communicate technical direction, risks, and progress clearly to stakeholders and executive leadership.
Influence platform strategy and technology investment decisions.
Build, lead, and scale high-performing engineering teams.
Coach and mentor engineers and emerging leaders, fostering growth and leadership development.
Drive accountability, set clear expectations, and lead hiring, onboarding, and career development.
Foster a culture of ownership, innovation, and continuous learning.

Required Education and Experience

Bachelor’s degree in Computer Science, Engineering, or related field.
10+ years of software engineering experience in complex, distributed systems.
5+ years leading engineering teams. (manager of managers preferred)
Strong expertise in web technologies, backend systems, and scalable architectures.
Experience delivering enterprise-grade platforms or SaaS products.