Software Principal Engineer Jobs

Lead the design of intelligent search and recommendation systems at Highspot. This senior principal role requires 8+ years of expertise in ML, information retrieval, and large-scale platforms. Drive technical strategy, mentor engineers, and shape discovery for millions of users from our Seattle o...

Lead complex backend projects as a Principal Software Engineer at LogRocket in Boston or NYC. Design highly available distributed systems and machine learning pipelines using modern cloud technologies. Enjoy catered lunches, unlimited vacation, generous stock options, and a collaborative, craft-f...

Join a high-growth tech firm in London as a Principal Software Engineer. Architect and scale high-throughput, event-driven systems in Golang, handling billions of monthly requests. Leverage your 8+ years of backend expertise in distributed systems, Kafka, and PostgreSQL within a top-tier engineer...

Join PointClickCare, a top health tech company, as a Principal Software Engineer in Mississauga. Develop scalable solutions using Java, Spring Boot, React, and RESTful APIs within a TDD environment. Enjoy Day 1 benefits, flexible PTO, and shape the future of healthcare with a passionate team.

Lead embedded software development for advanced MANET radios and research projects in Irvine. This senior role requires 8+ years of C programming and Linux kernel driver expertise. You will design MAC protocols, security features, and BSPs for ARM/RISC-V systems, ensuring compliance with NIST FIP...

Shape the future of enterprise AI as a Principal Software Engineer at Snorkel. Leverage your 12+ years of experience building cloud-native systems and deep AI/ML expertise to democratize AI through data. You will architect our core platform, mentor engineers, and tackle our most ambitious technic...

Lead the evolution of a cutting-edge AdTech DSP platform as a Principal Software Engineer. This role requires 12+ years of experience, expertise in Go or AdTech, and mastery of microservices and SQL. Drive technical vision, mentor a talented team, and build scalable systems from our Irvine or LA ...

Lead complex software projects from concept to deployment as a Principal Engineer at Amgen. Utilize your full-stack expertise in Python, ReactJS, and cloud architecture (AWS) to develop innovative, data-driven solutions. This role in Tampa or Thousand Oaks offers a chance to mentor teams and impa...

Lead the development of enterprise applications and cloud modernization at Amtrak. This principal role requires expertise in Java, Spring Boot, Angular, and AWS to architect scalable solutions. You will drive Agile/DevOps practices and mentor teams in a flexible hybrid model based in Washington, ...

Lead complex data engineering projects on a critical cybersecurity platform used by Fortune 10 companies. Design and build scalable data pipelines handling petabytes of security data using Python, Java, or Scala. Collaborate with data scientists and researchers to solve real-world problems with l...

Join our Next-gen Firewall dataplane team in Santa Clara as a Principal Engineer. You will design and develop critical L2-L4 networking components for cutting-edge firewalls using deep C programming and multi-threading expertise. This role offers ownership of large software modules, work on real ...

Join our Research Infrastructure Team in Tel Aviv as a Principal Software Engineer. You will design and build user-facing tools and APIs from the ground up using Python. Drive the full software lifecycle to create frameworks that empower security researchers. Expertise in Python and a passion for...

Seeking a Principal Software Engineer with an active Top Secret clearance to support critical Command, Control, and Battle Management (C3BM) programs in Bedford. This role requires 20+ years of DoD experience and expertise in the full software development lifecycle. We offer a comprehensive benef...

Lead/Principal Software Engineer role in Sydney. Build next-gen platforms, modernize core infrastructure, and drive AI initiatives at scale. Requires 10+ years in scalable systems, cloud (AWS), and mentoring. Enjoy a competitive package, equity, hybrid work, and top-tier benefits.

Lead the design and operation of petabyte-scale data platforms powering analytics and ML at Atlassian. This senior principal role requires 15+ years of experience building cloud-native data services on AWS/GCP with technologies like Spark and Databricks. Drive technical excellence for high-perfor...

Lead technical strategy for Atlassian's core Platform Apps like Home and Goals. Architect scalable, user-centric solutions with 15+ years of engineering experience. Enjoy global flexibility, health resources, and a culture of innovation.

Lead the vision and development of AI-powered products at Atlassian. Drive scalable AI infrastructure and explore cutting-edge applications like generative AI. This hands-on principal role in Turkey requires 7+ years of ML engineering and platform-building expertise.

Lead the development of a self-managed PostgreSQL platform on AWS/GCP for a global collaboration leader. We seek a Principal Engineer with 10+ years in backend systems, deep PostgreSQL internals expertise, and cloud database mastery. Drive technical strategy, mentor teams, and contribute to open-...

Lead the design of high-scale, distributed storage systems on AWS as a Principal Software Engineer in Bangalore. This hands-on technical role requires 10+ years in backend development and deep expertise in AWS storage services. You will architect solutions for performance, reliability, and cost-e...

Lead complex, high-impact projects as a Principal Full Stack Engineer. Leverage 10+ years of expertise in Java, Scala, or Node to solve architectural challenges at scale. Champion technical excellence, mentor junior engineers, and shape company-wide initiatives. This remote US role includes healt...