148 systems software engineer jobs at 78 companies in Crestline, CA
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Software Engineer (Range Systems)
Corona, California, United States
$115k-$150k/yr HybridFull Time
7+ YOE7+ years in systems/software engineering; experience with hardware/software integration; proficiency in C++, Java, Python, or C#; DoD or defense program exposure is a plus.
C++, Java, Python, C#, TCP/IP
2mo
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Lead Software Engineer, Engine Systems
Irvine or Albany
$122k-$225k/yr HybridFull Time
8+ YOE8+ years game engineering experience, leadership and shipped title required. Strong C++ proficiency, multithreading, performance optimization, engine systems experience (asset streaming, loading, scheduling), and excellent communication.
C++, Unreal Engine
2mo
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Control Systems Engineer
Rancho Santa Margarita, California, United States
OnsiteFull Time
Mid-level control systems engineer with embedded software, PLC/HMI, and system integration experience in energy storage.
Ladder Logic, Structured Text, CODESYS, SCADA, HMI, IEC 61131-3, PLC, Python
13h
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Software Engineer I - Embedded – Defense Systems Division
Irvine, California, United States
$71k-$117k/yr OnsiteFull Time
1+ YOERequires a bachelor's degree in computer science or electrical engineering, 1–2 years of related experience, C/C++ development, embedded systems, hardware interfaces, and U.S. citizenship.
C, C++, UART, USB, Ethernet, I2C, SPI, RS232, RS422, CAN, TCP/IP, UDP, oscilloscope, logic analyzer, digital multimeter
1mo
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Sr. Software Engineer
Irvine, California, United States
$112k-$191k/yr RemoteFull Time
5+ YOE5+ years enterprise software engineering with C#, .NET, SQL Server, Angular, and Azure; experience stabilizing production systems, building microservices/APIs, and mentoring teams.
C#, .NET, SQL Server, Angular, Azure, App Services, Functions, SQL Database, Kubernetes, Docker, DevOps pipelines
3w
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Senior Software Engineer
Brea, California, United States
$130k-$147k/yr HybridFull Time
6+ YOEBachelor's in Engineering/CS or equivalent, 6+ years software development, experience with C/C++ and modern stacks (Qt/QML, Node.js, Golang, React, Typescript, Python), and systems-level debugging.
C, C++, Linux, UNIX, Microsoft .NET, C#, JavaScript, SQL, Qt/QML, Node.js, Golang, React, Typescript, Python, PostgreSQL, Docker, MQTT, Microservices, npm, Bower, Webpack
2w
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Software Engineer I/II
Pasadena, California, United States
$88k-$135k/yr OnsiteFull Time
0+ YOE0–5 years software engineering experience in robotics or embedded systems; proficiency in C++ or Python, ROS/ROS2, Linux, Git; hardware integration and real-time/embedded software experience.
C++, Python, ROS, ROS 2, Linux, Git, EtherCAT, CAN, SpaceWire, MIL-STD-1553, SPI, I2C, TCP/IP, Modbus, OPC UA
2mo
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Staff Electrical Systems Engineer
Palo Alto or Irvine
$167k-$209k/yr OnsiteFull Time
5+ YOEBachelor’s in engineering and 5+ years experience in systems development for hardware-software integrations; knowledge of safety standards; CAD/wiring schematics experience.
1mo
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Sr. Software Engineer
Irvine, California, United States
$160k-$180k/yr RemoteFull Time
2+ YOEMaster's degree in CS/IT/Applied Data Science, 2+ years software engineering experience, proficiency in GoLang and Java, MySQL/Oracle, AWS (EC2, S3, Lambda, RDS), and building scalable, low-latency distributed systems.
GoLang, Java, MySQL, Oracle, AWS, EC2, S3, Lambda, RDS
3mo
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Sensor Systems Engineer-Federal
Irvine or Pittsburgh
$70k-$300k/yr OnsiteFull Time
Design, integrate, calibrate, and validate sensing systems for robotic platforms; collaborate across hardware, software, and field deployments.
ROS/ROS2, sensor drivers, coordinate transforms (TF), timing protocols (PTP, NTP), USB, Ethernet, GMSL, CAN, I2C, CSI
2mo
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Sr. Systems Engineer - Climate Control
Irvine, California, United States
$135k-$169k/yr HybridFull Time
BS or MS in Mechanical or Electrical Engineering; software-architecture tool experience; thermodynamics knowledge; MATLAB/Python; C/C++ a plus; cross-functional collaboration.
MATLAB, Python, C/C++, JAMA, DOORS
6d
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Information Systems Developer
Irvine, California, United States
$90k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent experience, 3+ years in software development or systems integration, programming experience, APIs, workflow automation, relational databases, and strong analytical and communication skills.
SQL, JavaScript, Python, Microsoft Power Automate, APIs, HRIS, CRM, relational databases
6d
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Senior Software Engineer
Santa Ana, California, United States
$129k-$172k/yr RemoteFull Time
5+ YOERequires 5+ years building production software, LLM feature deployment, agentic systems, backend services and APIs, cloud-native infrastructure, distributed systems, evaluation frameworks, and mentoring experience.
Cursor, Claude Code, GitHub Copilot
1mo
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Software Development Engineer, Devices Software & Services
Irvine or Los Angeles County
$144k-$194k/yr OnsiteFull Time
3+ YOEBachelor's degree or equivalent, 3+ years professional software development, 2+ years contributing to systems architecture/design, experience programming in at least one language, familiarity with software engineering best practices and agentic tools.
Kiro, Claude, Cursor
3mo
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Sr. Principal Systems Engineer
Irvine, California, United States
$125k-$206k/yr OnsiteFull Time
4+ YOEBachelor’s or higher in engineering with 4+ years; medical device experience; system requirements, verification/validation, and design controls; IEC 60601-1 knowledge; project leadership preferred.
Electrical Engineering, Mechanical Engineering, Biomedical Engineering, Software, IEC 60601-1, PTC, Polarion, JAMA, DOORS
2mo
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Systems Engineer – Algorithms (ONSITE)
Fullerton, California, United States
$76k-$144k/yr OnsiteFull Time
2+ YOEProficiency in MATLAB and Simulink; knowledge of software development principles; STEM degree with 2+ years experience; ability to obtain SECRET clearance.
MATLAB, Simulink
3w
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Senior Software Engineer, Sensor Integration
Irvine, California, United States
$191k-$253k/yr OnsiteFull Time
3+ YOE3+ years integrating or developing remote sensing systems; strong engineering background (CS, Software Engineering, Math, or Physics); proficiency in C++ and Rust; experience with large data processing; eligible for U.S. Secret clearance.
C++, Rust, Lattice OS
3mo
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Sr. Embedded Systems & Controls SW Engineer
Irvine, California, United States
$150k-$175k/yr OnsiteFull Time
Neon Aero: Designs and builds AI-native aerospace hardware and flight systems.
8+ YOE8+ years in embedded real-time software; strong C/C++; system-level control; CAN/SPI/Ethernet/ARINC; MATLAB/Simulink; DO-178C/ARP4754 knowledge preferred.
C/C++, MATLAB/Simulink, CAN, SPI, Ethernet, ARINC, DO-178C, ARP4754/4761
2w
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Software Engineer Manager
Irvine, California, United States
$237k-$300k/yr HybridFull Time
6+ YOE6+ MgmtBachelor's in CS or related plus 8 years experience (or Master's plus 6 years). Requires 6 years of technical and people leadership, system design, and engineering delivery experience.
13h
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Sr. Software Engineer
Irvine or Los Angeles or Seattle
$150k-$180k/yr OnsiteFull Time
Full-stack engineer modernizing production systems and building AI capabilities with Java, Go, JavaScript, BigQuery, GCP, REST APIs, databases, automated testing, and end-to-end project ownership.
Java, Go, JavaScript, BigQuery, Cloud Storage, MySQL, REST APIs, FTP, YAML, GCP, Docker, Kubernetes, GKE, GitHub Actions, Python, Tomcat, JSP, CodeMirror, Chart.js, MCP, LLMs
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