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259 software systems engineer jobs at 94 companies in Temecula, CA

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Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Software Engineer (Range Systems)
Corona, California, United States
$115k-$150k/yr HybridFull Time
Saalex
Saalex: Provides engineering, IT, and mission support for defense agencies.
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
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2mo
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Embedded Systems Software Engineer
Costa Mesa, California, United States
$144k-$191k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
5+ YOE5+ years in embedded software/firmware; BS in CS/CE/EE; C proficiency; microcontroller and embedded development; hardware/software debugging; IC bus protocols; eligibility for U.S. Secret security clearance.
C, RTOS, JTAG, SWD, Oscilloscopes, Logic Analyzers, I2C, SPI, CAN, RS232, RS485, Ethernet
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3w
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Senior Systems Engineer
Carlsbad, California, United States
$125k-$140k/yr OnsiteFull Time
Alphatec Spine
Alphatec SpineNASDAQ: ATEC: Designs and manufactures surgical implants and instruments for spine surgery.
7+ YOEBS in engineering, 7+ years engineering experience with 2+ years systems engineering for software/cloud products; expertise in distributed/cloud systems, SDLC/Agile, requirements management, design control, QMS, and regulated product development.
Software Development Life Cycle (SDLC), REST APIs, microservices, DevOps, Quality Management System (QMS)
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4w
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Systems Engineer
Carlsbad or Tempe
$95k-$150k/yr OnsiteFull Time
Viasat
ViasatNASDAQ: VSAT: Provider of global satellite-based connectivity and secure communication solutions.
5+ YOEBA/BS in engineering or equivalent, 5+ years designing complex electrical/mechanical/software production test systems, US citizenship, up to 10% travel, must work from Carlsbad, CA or Tempe, AZ office.
Jama, Solidworks Electrical, Solidworks 3D, Agile (Configuration Management Database), Microsoft SharePoint, DxDesigner, JIRA, ADS, HFSS, O-Scopes, Spectrum Analyzers, Network Analyzers, Logic Analyzers, Signal Generators
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2mo
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Embedded Systems Software Test/Developer
Poway, California, United States
$98k-$171k/yr OnsiteFull Time
General Atomics
General Atomics: Designs and manufactures unmanned aircraft and nuclear technology systems.
2+ YOEBachelor's in CS/IS (or equivalent) with 4+ years experience (2+ with MS); strong software development knowledge; experience designing and automating tests; proficient in Python and C (C++ preferred); AWS and AI tool experience; ability to obtain DoD Secret clearance; US citizenship required.
Python, C, C++, Claude, Llama, Amazon Web Services
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1mo
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Lead Software Engineer, Engine Systems
Irvine or Albany
$122k-$225k/yr HybridFull Time
Blizzard Entertainment
Blizzard EntertainmentNASDAQ: MSFT: Develops and publishes interactive video games and services.
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
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1mo
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Control Systems Engineer
Rancho Santa Margarita, California, United States
OnsiteFull Time
EVO Power
EVO Power: Provider of integrated battery storage systems and energy software.
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
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1w
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C++ Software Engineer – Autonomous Systems
Poway, California, United States
$125k-$175k/yr OnsiteFull Time
Applied Intuition
Applied Intuition: Developing software and simulation infrastructure for autonomous vehicles.
2+ YOE2+ years software engineering experience, strong modern C++ (C++20+), Python and shell scripting, Git, experience with agentic coding tools, strong algorithms and design skills, US citizenship and eligibility for Secret clearance.
C++, Python, shell, Cursor, Claude Code, GitHub Copilot, Git, CMake, Bazel, Protocol Buffers, FlatBuffers, Cap'n Proto, Docker, Kubernetes
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2mo
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Staff Systems Engineer- Power Modes
Irvine, California, United States
$171k-$214k/yr HybridFull Time
Rivian and Volkswagen Group Technologies
Rivian and Volkswagen Group Technologies: Technology and automotive joint venture focused on software-defined vehicles.
8+ YOEEight+ years in systems engineering for complex electromechanical platforms; BS or MS in related field; experience in power systems and software orchestration.
Flow, Jama, Polarion, DOORS
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1mo
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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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3mo
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Staff Systems Homologation Engineer
Irvine or Palo Alto
$154k-$193k/yr OnsiteFull Time
Rivian
RivianNASDAQ: RIVN: Designs and manufactures electric vehicles and charging networks.
10+ YOE10+ years in automotive systems, electronics, software, or calibration engineering; EU regulatory experience; degree in engineering or related technical field; strong requirements, V&V, and regulatory skills.
HIL, SIL, CAN, LIN, Flow, Jama, Diagnostics, Data Logging
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2mo
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Sensor Systems Engineer-Federal
Irvine or Pittsburgh
$70k-$300k/yr OnsiteFull Time
Field AI
Field AI: Develops autonomous software brains for robots in unstructured environments.
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
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1w
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Systems Project Engineer Quick Reaction Capabilities QRC
Poway, California, United States
$106k-$190k/yr HybridFull Time
General Atomics Aeronautical Systems
General Atomics Aeronautical Systems: Designs and manufactures unmanned aircraft and radar systems.
8+ YOESenior systems/project engineer with 8+ years experience; strong systems engineering, software/hardware integration, HMI, project management, and ability to obtain DoD clearance.
Linux/UNIX, Windows, EVMS
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2w
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Sr. Software Engineer
Irvine, California, United States
$160k-$180k/yr RemoteFull Time
Viant Technology
Viant TechnologyNASDAQ: DSP: Provides an AI-powered demand-side platform for digital advertising.
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
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3w
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CONNECTIVITY SOFTWARE ENGINEER
Irvine, California, United States
$100k-$120k/yr OnsiteFull Time
Vensure Employer Solutions: Comprehensive HR, payroll, and benefits services for business employers.
15+ YOEBachelor's in CS/Software Engineering, 15+ years in embedded/networked software, strong C/C++, Python, JavaScript, HTML, GoLang skills; experience in software integration, system validation, HW-SW interfaces, SDLC and unit testing; strong problem-solving and communication.
C/C++, Python, JavaScript, HTML, GoLang
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3w
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Staff Software Engineer
Irvine, California, United States
$130k-$207k/yr OnsiteFull Time
BD
BDNYSE: BDX: Manufactures medical devices, surgical instruments, and pharmacy automation systems.
7+ YOE7+ years building large-scale software; 2+ years Terraform and/or AWS CDK; 2–3 years running production systems on AWS; experience with Go, Java, React/JavaScript, RESTful APIs, CI/CD, and leading engineers; bachelor's preferred.
Go, Java, React, JavaScript, RESTful APIs, AWS, AWS CDK, Terraform, Amazon S3, AWS Lambda, Amazon RDS, Amazon SQS, AWS Step Functions, Airflow, AWS IAM, VPC, Amazon CloudWatch, CI/CD, SDKs, EHR
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2w
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Software Development Engineer, Devices Software & Services
Irvine or Los Angeles County
$144k-$194k/yr OnsiteFull Time
Amazon
AmazonNASDAQ: AMZN: Global online retail and cloud computing technology provider.
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
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3w
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Senior Software Engineer, Platform
Irvine or Newport Beach or Denver or San Francisco or Seattle
$185k-$200k/yr HybridFull Time
Compa
Compa: AI-powered compensation intelligence platform for enterprise teams.
5+ YOE5+ years backend software engineering experience; hands-on AWS, Python, Django, and Postgres; strong DevOps/SRE fundamentals (CI/CD, observability, incident response); networking and distributed systems knowledge.
AWS, Python, Django, Postgres, Kubernetes, CI/CD, Infrastructure as Code (IaC), ML Ops
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1mo
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Principal Software Engineer
Austin or Irvine or Dallas
$134k-$185k/yr HybridFull Time
Cotality
Cotality: Provides property data, analytics, and workflow intelligence solutions.
5+ YOEBachelor's in CS or related, 5+ years software development experience, strong SDLC and scalable systems experience, multi-language programming, AI-assisted development familiarity, technical leadership and strong communication.
GitHub Copilot, LLM APIs, agent frameworks, AGENTS.md, SDKs, Zoom, Microsoft Teams
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2mo
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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
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