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68 custom software engineer jobs at 53 companies in Irvine, CA

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Staff Software Engineer
El Segundo, California, United States
$150k-$240k/yr HybridFull Time
Circadia Health
Circadia Health: Saving lives with AI-powered contactless monitoring
7+ YOERequires 7+ years shipping full-stack production software, strong Python, FastAPI, Pydantic, 3+ years React, AWS, databases, testing, integrations, customer experience, and technical ownership.
React, Python, FastAPI, Pydantic, PointClickCare, Homecare Homebase, WellSky, HL7 v2, FHIR, REST, SFTP, CDC, AWS, PyTest
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3mo
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Software Engineer, Frontend (Agentic AI)
San Francisco or Marina Del Rey +1 more
$160k-$200k/yr HybridFull Time
Sift Stack
Sift Stack: Private software providing telemetry observability to engineering teams building mission-critical hardware.
3+ YOE3+ years professional software engineering experience; frontend expertise with high-performance web apps; experience with React/NextJS/TypeScript; strong product ownership and customer-facing skills.
React, NextJS, TypeScript, Redux, Tailwind, WebAssembly, D3.js, WebGL, Go, Parquet, Flink, Kafka, Redpanda, Beam, DuckDB, Timescale, QuestDB, InfluxDB, Druid, GitHub Actions, AWS, Azure, GCP, Docker, Kubernetes, Terraform, OPFS
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1w
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Software Engineer
Los Angeles, California, United States
OnsiteFull Time
Dialogue AI
Dialogue AI: AI-moderated customer research platform serving teams with interviews, surveys, participant recruitment, and synthesized insights.
Ability to work across full stack including frontend, backend, and AI; use modern AI tools; self-motivated; strong customer focus; clear communication; open to all experience levels.
Claude Code, Codex
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Software Developer (Salesforce)
Irvine, California, United States
$100k-$155k/yr HybridFull Time
Hyundai Capital America
Hyundai Capital America: U.S. captive auto finance providing loans, leases, and dealer financing for Hyundai, Genesis, and Kia customers.
5+ YOE5-7 years Salesforce development experience; Apex, integrations, and platform customization; Bachelor's degree in Computer Science or related field preferred; Salesforce certifications preferred.
Salesforce, Apex, Flow, API
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3w
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Senior Specialist, Software Engineer - Application Infrastructure & Embedded Systems
Yorba Linda or Cape Canaveral +1 more
$112k-$208k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Global aerospace and defense technology innovator and manufacturer.
6+ YOEBachelor's in Computer Engineering, CS, or EE with 6+ years embedded software experience (or Master's with 4+ years, or 10+ years without degree); 4+ years team lead; 4+ years DoD customer experience; 6+ years Python and C/C++; ability to obtain SECRET clearance.
Python, C, C++, Linux, Windows, Jenkins, Bamboo, Jira, Git
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Embedded Software Engineer
El Segundo, California, United States
$160k-$230k/yr OnsiteFull Time
GRAM
GRAM: Private robotics startup developing self-replicating, meter-scale insectoid robots for industrial infrastructure work.
Bachelor’s degree or equivalent experience; shipped C or C++ on custom electromechanical products; experience with RTOS or embedded Linux, hardware bring-up, drivers, real-time systems, and physical interfaces.
C, C++, RTOS, embedded Linux, CAN, EtherCAT, Ethernet, SPI, I2C, UART, Yocto
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3w
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Staff Software Engineer, Fullstack
Playa Vista or United States
$160k-$225k/yr HybridFull Time
Thrive Market
Thrive Market: Membership-based online grocer selling organic and sustainable groceries and household goods to U.S. members.
8+ YOE8+ years building high-traffic customer-facing systems with technical leadership; strong CS fundamentals; experience with eventing, workflow orchestration, AWS, and observability tools; PHP/Magento and React/Next stack.
Kafka, SQS, Temporal, Airflow, DAGs, PHP, Magento, React, Next, AWS, Lambda, S3, CloudWatch, New Relic, Datadog
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Staff Software Engineer, Front End (Customer Experience)
Fremont or Charlotte or California or San Francisco or Los Angeles or New York City
$165k-$200k/yr HybridFull Time
Scout Motors
Scout Motors: Reviving the iconic Scout brand with American-made electric vehicles.
8+ YOEBachelor’s or Master’s degree in Computer Science or related field, 8+ years of frontend engineering experience, and expertise in React, TypeScript, WebGL, GSAP, Framer, Astro, accessibility, and performance.
WebGL, GSAP, Framer, Astro, React, TypeScript, Core Web Vitals, SSR, SSG, CSR, WCAG
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Software Engineer II- Embedded OS Lifecycle & BSP Customization
Tustin, California, United States
$95k-$113k/yr HybridFull Time
Advantech
AdvantechTaiwan Stock Exchange: 2395: Global provider of industrial IoT and embedded computing platforms.
5+ YOEBS/MS in a technical field or equivalent, plus 5+ years of embedded software experience. Requires C/C++, Embedded Linux, Yocto, BSP development, hardware bring-up, and integration expertise.
C, C++, Python, C#, Embedded Linux, Yocto, Buildroot, QNX, U-Boot, RTOS, I2C, SPI, UART, PCIe, USB, JTAG, GDB, Git, SVN, Microsoft Windows
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2w
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Senior Specialist, Software Engineering (45922)
Yorba Linda, California, United States
$112k-$208k/yr OnsiteFull Time
L3Harris Technologies
L3Harris TechnologiesNYSE: LHX: Global aerospace and defense technology innovator and manufacturer.
6+ YOEBachelor's in Computer Engineering, Computer Science, Electrical Engineering or equivalent with 6+ years relevant experience (or Master's with 4+ years, or 10+ years without degree); 4+ years team lead experience; 4+ years DoD customer experience; 6+ years C/C++ coding; ability to obtain SECRET clearance.
C, C++, Jenkins, Bamboo, Jira, Git
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Lead, Platform Software
Torrance, California, United States
$198k-$277k/yr OnsiteFull Time
Neros Technologies
Neros Technologies: American defense technology manufacturing attritable drones and autonomous unmanned systems for Western military forces.
Hands-on software team leadership, deep embedded-platform background (custom Linux, kernel/BSPs, bootloaders, runtime/SDK), track record running platform as product, strong judgment on build-vs-adopt and interface design.
Linux, Yocto, Buildroot, Bazel
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1w
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Software Application Developer
Detroit or Los Angeles or Oakland or Orange or Sacramento or San Diego or San Francisco or Seattle
$120k-$153k/yr HybridFull Time
Degenkolb Engineers
Degenkolb Engineers: Private, employee-owned structural engineering firm serving healthcare, education, technology, construction, and federal clients.
5+ YOEBA/BS in Computer Science or related field; 5+ years application development; experience with AI-assisted development, Azure deployment, Power Platform, HTML/CSS/JavaScript/React, Python, SQL; strong communication and customer service.
Python, React, SQL, Azure, Microsoft 365, SharePoint, Power Platform, Power Automate, Power BI, Dynamics 365, HTML, CSS, JavaScript, Azure DevOps, Claude Code, Cursor
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Principal SW Engineer - SW Technical Lead - F18 Gen 4 Radar
El Segundo, California, United States
$118k-$225k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Aerospace and defense providing advanced technology solutions.
8+ YOESTEM degree and 8+ years of software development experience. Requires C/C++/Ada, embedded or real-time systems, DevSecOps, customer-facing technical leadership, and active Secret clearance with U.S. citizenship.
C, C++, Ada, UNIX, Linux, Microsoft Windows, VxWorks, Green Hills, git, Jenkins, Subversion, Scrum, Continuous Integration, Test-Driven Development, OMS, SOSA, Link-16
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2mo
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AI Engineer
Irvine, California, United States
$180k-$250k/yr HybridFull Time
Emergence AI
Emergence AI: Enterprise AI software building governed agents that automate high-stakes workflows for business customers.
3+ YOE3+ years professional software engineering experience; AI-native engineer using Claude Code, Cursor, Codex or similar; strong backend, API, distributed systems fundamentals; experience shipping production software to real customers.
Claude Code, Cursor, Codex, Rust, Go, TypeScript, Python, Kubernetes
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1mo
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Senior Traffic Engineer
Anaheim or Tampa
$125k-$140k/yr FieldFull Time
Econolite
Econolite: Private North American intelligent transportation systems provider serving transportation agencies with traffic-control hardware, software, and lifecycle services.
8+ YOEBachelor's degree in civil or transportation engineering, 8–15 years of traffic engineering or ITS experience, traffic simulation software expertise, valid driver's license, and customer-facing technical leadership experience.
Centracs Mobility, PTV Vissim, Vistro, Flows, Synchro, SimTraffic, Visum, Advanced Traffic Management Systems (ATMS), Traffic Management Centers (TMCs), NEMA, ATC
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Solutions Engineer
Los Angeles or United States
$120k-$170k/yr RemoteFull Time
Zoo
Zoo: Private technology building cloud-native CAD and AI-powered hardware design tools for engineering and manufacturing teams.
Bachelor's degree in Mechanical Engineering, Computer Science, Robotics, or related field or equivalent experience; demonstrated customer-facing engineering experience; knowledge of CAD software; understanding of APIs and MCP; hands-on experience with AI tools such as Codex; ability to handle ITAR-controlled data.
CAD, APIs, Model Context Protocol (MCP), Codex
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3w
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Applications Engineer Sales Representative
Santa Ana, California, United States
OnsiteFull Time
Variable Speed Solutions
Variable Speed Solutions: Privately held California pump, variable-speed-drive and water-treatment equipment sales-and-service for golf, municipal and commercial customers.
2+ YOEBachelor's degree in engineering (mechanical, chemical, or electrical preferred); 2+ years experience in equipment manufacturing preferred; proficiency in engineering software and Microsoft Office; willingness to travel for customer meetings.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint
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3mo
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Deployed Engineer
Los Angeles, California, United States
$120k-$160k/yr OnsiteFull Time
Apex
Apex: Private American satellite manufacturer building configurable satellite buses at scale for commercial and government customers.
Bachelor's in a technical field, strong software engineering background, experience troubleshooting lab/integration/field systems, familiarity with Linux/Python/C/C++, ability to read technical documentation, and willingness to travel to customer sites.
Linux, Python, C/C++, Networking, test automation, APIs
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4w
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Optical Sensor Engineer
Anaheim, California, United States
OnsiteFull Time
Endress+Hauser
Endress+Hauser: Global leader in measurement instrumentation and process automation solutions.
5+ YOEBachelor's degree in physics or engineering (master's/PhD preferred); 5+ years optical engineering design experience; proficiency with optical design software (ZEMAX), Microsoft Office, SAP; ability to lift 35 lbs; occasional travel to Germany and customer sites.
ZEMAX, Microsoft Office, SAP
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6d
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Design Engineer - Customs
Carlsbad, California, United States
$75k-$90k/yr OnsiteFull Time
Alphatec Spine
Alphatec SpineNasdaq: ATEC: Medical device manufacturer developing spinal surgery implants, biologics, imaging, and navigation solutions for spine surgeons.
1+ YOEUndergraduate degree in mechanical or biomedical engineering; 1-4 years product development experience; 3D CAD software (SolidWorks preferred); strong communication; must be authorized to work in the US without sponsorship.
SolidWorks, ServiceNOW
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