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Principal Software Engineer | Xbox Media (San Francisco, CA)
Craft: Job Description: Your Role Within the Kingdom Do you want to build amazing high-scale backend systems for Advertising using the latest technologies? Are you an excellent communicator who enjoys working with…
Senior and/or Principal Software Engineer - AI Infrastructure
Overview AI Infra is at the forefront of Microsoft’s mission to redefine how software is built and experienced. We are responsible for building the foundational platforms, services, programming models, and developer…
Software Engineer, Missile Defense Simulation (II - Principal)
Builds and runs physics-based mission- and engagement-level simulations for space and missile defense — modeling threats, sensors, spacecraft, interceptors, and C2 systems to guide design, concept-of-operations, and acquisition decisions. Core stack is Python and C++, with Monte Carlo/trade studies and simulation VV&A.
Principal Flight Software Engineer
A principal-level technical authority who owns the architecture and direction of spacecraft flight software end to end — from safety-critical embedded C/C++ development, device drivers, and RTOS work to GNC integration, CTDB design, and HITL/SITL simulation — through on-orbit operations. Onsite in Denver, CO or Long Beach, CA.
Principal Software Engineer
Hands-on Principal Engineer who designs and builds custom AI B2B solutions for clients from scratch, owning each greenfield project from consultation through deployment, mentoring engineers and talking directly with customers. Fully remote within Ireland, the EU and the UK; strong backend engineering in any language.
Principal Software Engineer
Overview Are you interested in being part of an organization of ~$10 billion in revenue and still growing? Are you looking to join a fun and invigorating environment where people openly collaborate and are empowered to…
Principal Software Engineer - Systems and Infrastructure
Overview Team Purpose The Artificial Intelligence (AI) Infrastructure Engineering Systems team at Microsoft builds the cloud platform, engineering infrastructure, and developer systems that enable teams to develop,…
Principal Software Engineer
Overview Do you want to shape the commerce solutions that power some of the world’s largest retailers and brands? As a Principal Software Engineer in Dynamics 365 Commerce, you will lead architecture, code hands-on,…
Principal Software Engineer
Overview As a Principal Software Engineer on the Microsoft Security Exposure Management (MSEM) team, you'll help build the platform that empowers every organization to see, understand, and reduce their security risk…
Senior/Principal Radar Software Engineer
CHAOS Industries is hiring a Senior/Principal Radar Software Engineer to build R&D and production software for its next-generation radar products, including system integration on COTS hardware and support of deployed capabilities. The role is full-time on-site in El Segundo, CA, centered on advanced Python and Linux development with signal processing and radar algorithms preferred.
Principal Software Engineer - P1
Senior support/troubleshooting engineer who takes customer-reported issues, finds root causes across DB, application, OS, network, and mobile layers, and fixes them in coordination with infrastructure, DBA, security, and development teams. Core tech: SQL, IIS/Tomcat/Nginx, REST/SOAP APIs, ETL/ESB, React Native, ITIL.
Principal Software Engineer
Overview 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…
Principal Software Engineer
Overview Microsoft is a company where passionate innovators come together to collaborate, envision what is possible, and take their careers further. Our mission is to empower every person and every organization on the…
Model Performance Software Engineer, Claude Code
Build and own evaluation systems and infrastructure to measure and improve Claude Code’s coding capabilities, bridging engineering and AI research.
Principal Software Engineer, Mobile
Principal Android Engineer at Cambridge Mobile Telematics builds and leads the Android SDK platform for AI-driven mobility safety products, using Java/Kotlin, JetPack, and REST APIs.
Principal Software Engineer - Vector Search - Elasticsearch
Principal Software Engineer at Elastic to lead vector search improvements in Elasticsearch, designing and implementing new features and algorithms in Java for large-scale search systems.
Principal/Senior Software Engineer, Mobile, CEX
Builds and scales real-time market data features for OKX's mobile trading app, integrating AI into trading workflows using mobile and crypto exchange technologies.
Principal Software Engineer
Principal Software Engineer at PayPay designing and scaling high-performance distributed systems for a 75M+ user fintech platform using Java/Kotlin/Scala, Kubernetes, and AWS/GCP.