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95 software engineer operating systems jobs at 48 companies in Ontario, CA

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Software Engineer - AI Systems (Go)
Irvine or United States
RemoteFull Time
Stanbridge University
Stanbridge University: Provides vocational degree programs in nursing and allied health.
Substantial production software experience; strong Go or backend-language expertise; production LLM or agent-system experience; distributed systems, HTTP APIs, relational databases, SQL, testing, observability, and backend operations expertise.
Go, Golang, HTTP APIs, SQL, RAG, containers, cloud infrastructure, CI/CD
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3w
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Systems Process Engineer
El Segundo, California, United States
$87k-$198k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
5+ YOE5+ years systems engineering experience on national security space programs, 3+ years systems integration or software deployment experience, Secret clearance, Bachelor's in engineering/math/CS/physics required.
Microsoft Excel, Microsoft PowerPoint, Microsoft Word, Atlassian Jira, Atlassian Confluence
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3mo
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Power Systems Engineer
Irvine, California, United States
$65k-$108k/yr HybridFull Time
ETAP
ETAP: Electrical power system modeling and analysis software solutions.
1.5+ YOE1.5+ years in electric utility transmission/distribution design or operations; power system analysis software experience; GIS/CAD familiarity; programming/AI for automation; strong written/spoken communication; US work authorization; BS in Electrical Engineering; PE license in CA preferred.
Revit, AutoCAD, ETAP, SKM, EMTP-RV, PSCAD, CYME, PSLF, GIS, MEP, CAD
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1mo
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Senior Software Engineer
San Francisco or New York City or Los Angeles or Seattle or United Kingdom or Ireland or Poland or Germany or Australia
$207k-$230k/yr HybridFull Time
Whatnot
Whatnot: Social marketplace for buying and selling via live streams
5+ YOE5+ years software engineering experience building and operating scalable backend or full‑stack distributed systems; strong system design, production ownership, and mentoring; experience with Python, Elixir, or JavaScript preferred.
Python, Elixir, JavaScript
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1mo
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Staff Software Engineer, Frameworks
Mountain View or Los Angeles or San Francisco
$210k-$250k/yr HybridFull Time
Commure
Commure: AI-powered software platform for healthcare workflow and administrative automation.
8+ YOE8+ years software engineering experience designing and operating secure, scalable authentication/authorization and distributed backend systems; experience with Kubernetes and cloud-native infrastructure; strong technical leadership and mentorship.
OAuth 2.0, OIDC, JWT, AWS Cognito, Python, FastAPI, Pydantic, PostgreSQL, Go, Kubernetes
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1mo
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Software Engineer, Vehicle Operations (Starshield)
Hawthorne, California, United States
$125k-$175k/yr OnsiteFull Time
SpaceX
SpaceX: Designs and launches advanced rockets and satellite internet constellations.
Bachelor's in CS/engineering/physics, software development experience in C/C++/Python, Linux and systems knowledge, on-call operations and satellite anomaly triage, ability to obtain security clearance preferred.
C, C++, Python, Linux, RESTful APIs, gRPC
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1mo
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Software Engineer, Backend (Agentic AI)
Marina Del Rey, California, United States
$200k-$250k/yr HybridFull Time
Sift
Sift: Software platform for high-frequency hardware telemetry observability.
3+ YOE3+ years software engineering; backend APIs and distributed systems experience; experience with Go, Python, or Rust; Kubernetes and production operation; customer-facing product ownership.
Go, Python, Rust, REST, gRPC, ECharts, PostgreSQL, Protobuf, Radix, React, Redux, TypeScript, Arrow, DataFusion, Flink, Parquet, Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, Terragrunt, Kafka, TimescaleDB
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2mo
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Senior Reactor Systems Engineer
El Segundo, California, United States
$134k-$185k/yr OnsiteFull Time
Radiant
Radiant: Designs and manufactures portable, mass-produced nuclear microreactors.
4+ YOE4+ years engineering experience, expertise in hardware/software testing and operations, first-principles problem solving, background in regulated industries, ability to translate designs into DOE/NRC-compliant procedures, willing to work extended hours and travel 50–60%.
Python, UNIX
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1mo
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Staff Software Engineer, Core Infrastructure
Bellevue or Seattle or San Francisco or Palo Alto or Los Angeles
$195k-$343k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Develops social media applications and augmented reality technology.
9+ YOEBachelor's in CS/Engineering or equivalent; 9+ years software development experience (reduced with advanced degree); proven technical lead experience building and operating large-scale distributed backend systems; strong system design and leadership skills.
Go, Java, Python, C++, Kubernetes
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1mo
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Principal Software Engineer - Developer Connections, Game Release
Los Angeles, California, United States
$229k-$320k/yr OnsiteFull Time
Riot Games
Riot Games: Develops and publishes video games and esports content.
8+ YOE8+ years of software engineering experience, including shipping a live-operated game; deep game release lifecycle expertise; large-scale production systems, architecture, debugging, crisis response, and cross-team technical leadership.
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Backend Software Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$130k-$220k/yr OnsiteFull Time
CHAOS Industries
CHAOS Industries: Develops advanced radar and sensing systems for modern defense.
U.S. Person status, ability to obtain and maintain a U.S. security clearance, and backend/cloud engineering experience with scalable systems, infrastructure, reliability, and operations.
Microsoft Azure, Python, Terraform, Kubernetes, TypeScript, React, CI/CD
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4w
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Sr. Software Engineer, Dataplane
Irvine or United States
$118k-$154k/yr RemoteFull Time
Alteryx
Alteryx: Provides an automated data analytics and data science platform.
5+ YOE5+ years software development experience; strong Go, REST API, distributed systems; AWS or GCP cloud experience; JavaScript/TypeScript and React; CI/CD and Git; troubleshooting and production operations skills.
Go, REST APIs, AWS, GCP, JavaScript, TypeScript, React, Kubernetes, Docker, Helm, Terraform, Kafka, Redis, Pub/Sub, Git
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2mo
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Staff Software Engineer, Platform Engineering
Santa Monica or Los Angeles
$229k-$343k/yr OnsiteFull Time
Snap
SnapNYSE: SNAP: Provides visual messaging software and augmented reality wearable devices.
9+ YOE9+ years software development experience (or advanced degree with equivalent experience), background building and operating large-scale backend/distributed systems, on-call experience, system design, observability, mentoring, and familiarity with Temporal, BigQuery, Kubernetes, and backend languages.
Java, Go, Python, C++, Temporal, BigQuery, Kubernetes, CI/CD, JIRA, SQL
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2mo
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Mission Software Engineer, Infrastructure
Costa Mesa or Seattle or Washington
$166k-$220k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years engineering experience (3+ in infrastructure/operations). Deep Kubernetes expertise, strong programming in Go/Python/Rust/Java, cloud (AWS/Azure/GCP), debug distributed systems, incident leadership, eligible for U.S. Top Secret clearance.
Kubernetes, Go, Python, Rust, Java, AWS, Azure, GCP, ArgoCD, FluxCD, Spinnaker, Jenkins, Prometheus, Grafana, ELK/EFK, Vault, Sealed Secrets, SOPS, Lattice OS
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1w
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Staff Ground Software Engineer
Irvine, California, United States
$175k-$225k/yr OnsiteFull Time
Turion Space
Turion Space: Builds spacecraft for orbital debris removal and satellite servicing.
8+ YOEBachelor's degree or equivalent practical experience, 8+ years of software development, backend and distributed systems expertise, cloud-native architecture, live SaaS operations, on-call experience, and TS/SCI eligibility.
Go, Kubernetes, Amazon Web Services (AWS), Amazon Elastic Kubernetes Service (EKS), Amazon Elastic Compute Cloud (EC2), AWS Batch, Amazon Simple Storage Service (S3), AWS Lambda
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2mo
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Sr. Software Engineer - B2B- AXS
Los Angeles, California, United States
$130k-$150k/yr HybridFull Time
AEG Worldwide
AEG Worldwide: Operates live entertainment venues and professional sports franchises worldwide.
4+ YOE4+ years professional software experience, strong C#/.NET or Java background, experience building and operating distributed systems, cloud (AWS) experience, relational DB knowledge, bachelor’s degree or equivalent, mentoring and strong communication skills.
C#, .NET, .NET Core, Java, AWS, SQL Server, PostgreSQL, MySQL, Kafka, DynamoDB, Elasticsearch, Docker, Terraform, TDD/BDD
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5d
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Principal Ground Software Engineer
Hawthorne, California, United States
$120k-$190k/yr OnsiteFull Time
Reflect Orbital
Reflect Orbital: Reflects sunlight from orbital mirrors to Earth solar farms.
10+ YOEBachelor's degree or equivalent experience, 10+ years developing ground systems software, technical direction experience, satellite operations experience, AWS and Kubernetes expertise, networking knowledge, and Python, C++, or Rust skills.
Amazon Web Services (AWS), Kubernetes, Python, C++, Rust, Linux, HSA, FSA, 401K, VPN
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2mo
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Senior Avionics Systems Test Engineer, Operations
Long Beach, California, United States
$148k-$204k/yr OnsiteFull Time
Relativity Space
Relativity Space: Designing and manufacturing 3D-printed rockets and launch vehicles.
5+ YOEBS/MS/PhD in EE/CE/CS/Aerospace, 5+ years integrated systems test experience, proficiency with Python or MATLAB, experience validating complex electrical and software systems, and test planning/verification skills.
Python, MATLAB, Zuken, NX, Teamcenter, Altium Designer, Ethernet, CAN, UART, SPI
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Embedded Software Engineer (Home Networking)
Irvine, California, United States
$100k-$140k/yr OnsiteFull Time
TP-Link
TP-Link: Global manufacturer of networking hardware and smart home devices.
3+ YOEBachelor's degree or equivalent experience, 3+ years developing embedded software, C/C++ programming, embedded operating systems, networking protocols, hardware interfaces, debugging tools, testing, and version control.
C, C++, RTOS, Linux, DHCP, IPv4, IPv6, UART, SPI, I2C, GPIO, GDB, Wireshark, ARM Cortex-A53/73
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2mo
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Senior / Staff Software Engineer, AI
Venice or United States
$170k-$260k/yr HybridFull Time
Kindo
Kindo: AI-native agent platform for automating technical operations
Experience building and operating backend or distributed systems; production AI/LLM systems experience; TypeScript required, Python preferred; strong SQL; familiarity with Docker/Kubernetes and enterprise security patterns.
TypeScript, Python, SQL, Docker, Kubernetes
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