Principal Software Engineer-SRE

Our world is transforming, and PTC is leading the way. Our software brings the physical and digital worlds together, enabling companies to improve operations, create better products, and empower people in all aspects of their business.  Our people make all the difference in our success. Today, we are a global team of nearly 7,000 and our main objective is to create opportunities for our team members to explore, learn, and grow – all while seeing their ideas come to life and celebrating the differences that make us who we are and the work we do possible.   Principal S oftware   Engineer   (SRE) - Onshape - Remote US.    About the Role   Onshape’ s   Site Reliability Engineering team is   looking for a   Principal S oftware  Engineer to play a critical role in ensuring the long ‑ term reliability, scalability, and operational excellence of our platform.   As a Principal   Software Engineer , you will   operate   with a high degree of autonomy and influence. You will lead complex, cross ‑ organization reliability initiatives, shape reliability strategy, and serve as a technical authority and trusted advisor across engineering.   Your work will directly shape the experience of our customers by ensuring the platform is fast, resilient, and dependable. As a Principal   Software Engineer ,   you will help protect customer trust by driving reliability across the entire system lifecycle.   This role is ideal for engineers who enjoy solving ambiguous, high ‑ impact problems at scale, influencing system design across teams, and raising the reliability bar for an entire organization .   What   You’ll   Do: Own Reliability at Scale   Lead design, implementation, and evolution of reliability, availability, and resiliency strategies for large ‑ scale distributed systems written primarily in   Java   Apply deep experience operating complex, distributed systems to guide architectural decisions, reliability strategies, and long ‑ term system evolution   Identify   systemic risks in application architecture, data flows, and infrastructure, and drive architectural improvements that measurably improve availability, performance, and scalability   Set and evolve reliability standards, best practices, and operational principles across R&D   Drive Operational Excellence   Lead efforts to prevent, detect, and mitigate incidents through technical improvements and operational maturity   Serve as a senior coordination point during major incidents, helping manage response and guide long ‑ term remediation   Champion blameless post-incident reviews and ensure learnings translate into durable system improvements   Reduce Toil Through Engineering   Apply advanced software engineering practices to   eliminate   manual work, reduce operational load, and improve system observability   Design and build internal platforms, automation, and tooling that support Java ‑ based services and their operational needs   Raise the bar on monitoring, alerting, and SLO/SLI adoption across systems   Lead Through Influence and Collaboration   Partner deeply with product engineers, architects, and engineering leadership to ensure reliability and operability are first ‑ class concerns in system design   Review and influence designs for complex systems involving technologies such as   datastores, messaging systems, and coordination services   Serve as a technical mentor and coach for SREs and other engineers, raising overall engineering and operational maturity   Shape Strategy and Direction   Contribute to longer ‑ term reliability and infrastructure strategy aligned with business growth   Stay current with industry trends in SRE, distributed systems, and the Java ecosystem, turning insights into practical improvements   Help define what “great reliability” looks like for the organization and how we measure it   What   We’re   Looking For   Required Experience &   Expertise   US Citizenship or Permanent Residents only due to ITAR requirements.   Ability to   work east coast (EST) hours .    And be available for on-call rotation once every   10 weeks .   10+   years of experience in software engineering, site reliability engineering, or systems engineering roles   Extremely strong   proficiency   with the Java programming language and its ecosystem , including building, debugging, and   operating   production Java services   Deep experience operating complex, distributed systems in production environments   Strong software engineering background, with   a track record   of delivering high ‑ quality, maintainable code   Technical Strength   Expert understanding of incident management, service reliability, and performance engineering   Strong hands ‑ on experience with observability (metrics, logs, traces), capacity planning, and SLO ‑ driven reliability   Deep familiarity with modern cloud ‑ based infrastructure, CI/CD pipelines, and infrastructure ‑ as ‑ code practices   Ability to reason about failure modes across application, data, and infrastructure layers   Leadership & Influence   Demonstrated ability to lead complex initiatives that span teams and organizational boundaries   Comfortable making high ‑ impact technical decisions in ambiguous environments   Strong communicator who can influence design and operational decisions across a wide range of stakeholders   Mindset   Systems thinker focused on root ‑ cause analysis and durable fixes   Calm and effective under pressure, especially during high ‑ severity incidents   Curious, data‑ driven, and committed to continuous improvement   Nice to Have   Experience   operating   or supporting systems using technologies such as   MongoDB ,   ZooKeeper , and   RabbitMQ   Background in performance tuning and scalability optimization of Java services   Experience setting or influencing engineering standards at the organization level   Prior involvement in