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636 api engineer jobs at 300 companies in Orange, CA

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API Engineer I - Credit
Alpharetta or Phoenix or Costa Mesa or Stamford or Lake Mary or Orlando or Chicago or Kansas City or New York or Charlotte or Cincinnati or Canton or West Chester or Dallas
$75k-$120k/yr HybridFull Time
Synchrony
SynchronyNYSE: SYF: Public U.S. consumer financial services providing credit cards, financing, and banking products to consumers and businesses.
2+ YOEBachelor's degree in computer science or related field, or high school diploma with 2 years Java development; legal authorization to work in the U.S. without sponsorship; willingness to take drug test, background check, and fingerprints; 18+ years old.
Java, Spring, Spring Boot, Jira, Bitbucket, Git, JSON, REST, XML
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4w
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Lead API Software Developer (Lead Software Developer)
Tustin or Riverside
$130k-$214k/yr HybridFull Time
SchoolsFirst Federal Credit Union
SchoolsFirst Federal Credit Union: Member-owned federal credit union providing banking, lending and financial services to California school employees and their families.
7+ YOEHigh school diploma or GED; Bachelor's degree in related field or equivalent experience; 7-10 years relevant experience; expert in C#, .NET Core, RESTful APIs, SQL Server, cloud, CI/CD, and Agile.
C#, .NET Core, RESTful APIs, OpenAPI, Swagger, SQL Server, T-SQL, JavaScript, TypeScript, HTML5, Swift, Java, Kotlin, Azure DevOps, CI/CD
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1mo
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Operations Engineer
Huntington Beach, California, United States
$1-$99/yr OnsiteFull Time
Mach Industries
Mach Industries: Private defense manufacturer developing unmanned aerospace systems and production infrastructure for military customers.
1+ YOEBachelor’s degree in computer science or engineering, 1–3+ years in engineering or consulting, systems-level reasoning, and automation experience using Python, SQL, APIs, or similar tools.
Python, SQL, APIs, Jira, PLM, ERP, MES, AS9100, ISO9001, ITAR, EAR
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Principal Mechanical Engineer
Long Beach or Monrovia or Los Angeles
$146k-$215k/yr OnsiteFull Time
Worley
WorleyASX: WOR: Global provider of professional project and asset services.
8+ YOEBS or MS in Mechanical Engineering, 8+ years of rotating equipment engineering in the petrochemical industry, 5 years with other mechanical or packaged equipment, oil and gas experience, and API standards knowledge.
API 617, API 614, API 670, API 671, API, ANSI, NEMA, ASTM
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Applications Engineer
Santa Ana, California, United States
$100k-$120k/yr OnsiteFull Time
Universal Electronics
Universal ElectronicsNasdaq Stock Market LLC: UEIC: Public U.S. manufacturer of wireless control, smart-home, climate-control, and sensing technologies for global consumer and enterprise brands.
2+ YOERequires a bachelor's degree in electrical, computer, or related engineering; 2+ years in consumer products; knowledge of RF/IP protocols, firmware, APIs, cloud architecture, and project coordination. PMP preferred.
Z-Wave, ZigBee, Matter, THREAD, Wi-Fi, LoRa(WAN), Honeywell, 2Gig, Interlogix, HVAC, IoT, API, QuickSet, Bluetooth
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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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2mo
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Software Systems Engineer
El Segundo, California, United States
$87k-$198k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Global firm providing management, technology, and engineering consulting services.
7+ YOEBachelor's degree in computer science or engineering, 7+ years software engineering, 5+ years SATCOM or related systems experience, Secret clearance, and expertise in requirements, architectures, ICDs, APIs, DevSecOps, and cybersecurity.
Artificial Intelligence (AI), cyber, DevSecOps, API, CI/CD, Agile, SAFe, RMF, UML, SysML, DoDAF, UPDM, UAF, Cameo, MagicDraw, Rhapsody, Sparx Enterprise Architect, MBSE, AI/ML
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3mo
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Manufacturing Systems Engineer
Torrance, California, United States
$184k-$257k/yr OnsiteFull Time
Neros Technologies
Neros Technologies: American defense technology manufacturing attritable drones and autonomous unmanned systems for Western military forces.
3+ YOE3+ years manufacturing/systems engineering experience; MES administration (Manufacturo or similar); MES–ERP integrations; working with CSV/JSON and APIs; strong floor presence, communication, and troubleshooting; bachelor's in engineering or equivalent experience.
Manufacturing Execution System (MES), Manufacturo, iBase-t Solumina, Tulip, Siemens Opcenter, ERP, SAP S/4HANA, NetSuite, Odoo, PLM, CSV, JSON, API
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OSS Engineer (US - Remote)
Irvine, California, United States
$90k-$150k/yr RemoteFull Time
AXON Networks
AXON Networks: Privately held AI-driven network orchestration and high-speed router provider serving ISPs and telecom operators worldwide.
5+ YOE5+ years in OSS engineering, network automation, or operations software; programming, APIs, integrations, dashboards, Linux, containers, Kubernetes, cloud, networking, CI/CD, and telecom OSS experience required. Bachelor's degree or equivalent.
Python, Go, Java, TypeScript, JavaScript, Linux, Kubernetes, Git, Terraform, Helm, Google Cloud Platform, Grafana, Prometheus, OpenTelemetry, Elasticsearch, Apache Pulsar, Kafka, Jira Service Management, REST APIs, webhooks, TM Forum Open APIs, YANG, NETCONF, RESTCONF, gNMI, SNMP, TR-069, CWMP, TR-369, USP, TR-181, TCP/IP, DNS, DHCP, TLS, CI/CD, APIs, ITSM
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3mo
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Payload Integration Engineer - Level 4
Pasadena, California, United States
$127k-$193k/yr HybridFull Time
Sophia Space
Sophia Space: Private orbital computing building AI systems and in-space data centers for defense, government, and commercial customers.
8+ YOEBS in engineering, 8+ years spacecraft or payload systems engineering experience, ownership of payload integration/ICDs/I&T, electro-optical payload expertise, API/SDK integration experience, strong cross-disciplinary leadership; U.S. Person required.
SpaceWire, GigE Vision, MIPI CSI, RS-422, CAN, Ethernet, MIL-STD-1553, CCSDS, MBSE, SysML, DOORS, Jama, Polarion, Cameo, Innoslate, MGSE, EGSE, APIs, SDKs
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Principal Engineer, Architecture
Glendale, California, United States
$320k-$380k/yr OnsiteFull Time
Moon
Moon: Independent vertical SaaS serving home-improvement businesses with an AI-powered platform for design, sales, service, and operations.
12+ YOE12+ years engineering experience with staff/principal scope; expertise in distributed systems, data modeling, API design, security; strong mentorship and technical writing skills.
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2mo
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Platform Engineer
Torrance, California, United States
$130k-$155k/yr OnsiteFull Time
Robinson Helicopter Company
Robinson Helicopter Company: Private American manufacturer of civil helicopters and unmanned aircraft serving training, utility, public-safety, and defense operators.
6+ YOERequires 6+ years in platform, DevOps, cloud, software, or systems integration engineering; Azure, CI/CD, Docker, JavaScript or TypeScript, Node.js, APIs, SQL, troubleshooting, communication, and a bachelor's degree or equivalent.
Microsoft Azure, Next.js, Strapi, App Service, Front Door, WAF, Container Registry, Blob Storage, PostgreSQL, Redis, Application Insights, GitHub Actions, Docker, Epicor Kinetic ERP, Shopify, Git, JavaScript, TypeScript, Node.js, REST, GraphQL, SQL, React, Terraform, Bicep, PowerShell, Bash, Python, Sentry, Cypress, Azure OpenAI, Microsoft Foundry, OpenAI APIs
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3mo
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Senior Software Engineer I
Long Beach, California, United States
$132k-$160k/yr OnsiteFull Time
Rocket Lab
Rocket LabNASDAQ: RKLB: End-to-end space delivering launch services and spacecraft.
5+ YOE5+ years software engineering experience, expertise in Python, backend architecture, CI/CD, containerization, Git, Kubernetes, REST APIs; US citizenship required.
Python, Git, Kubernetes, CI/CD, Jira, Redmine, Pandas, Numpy
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1mo
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Application Engineer II
Irvine, California, United States
$71k-$98k/yr OnsiteFull Time
Nikkiso Clean Energy & Industrial Gases
Nikkiso Clean Energy & Industrial Gases: Engineering and servicing cryogenic equipment for energy, transportation, marine, aerospace, and industrial-gas customers.
5+ YOEBachelor's in Mechanical or Chemical Engineering or equivalent experience required; 5+ years experience; AutoCAD/SolidWorks preferred; CRM and advanced MS Office; familiarity with API, ASME, NEC, IEC, ISO desired.
AutoCAD, SolidWorks, SalesForce, Microsoft Office
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Enterprise Software Engineer
Torrance, California, United States
$135k-$160k/yr OnsiteFull Time
Antares Nuclear
Antares Nuclear: Factory-produced, deployable fission microreactors to provide strategic energy for mission-critical systems across Earth, space, and underseas.
3+ YOEBachelor's degree and 3+ years supporting supply chain/manufacturing or business/operations systems; experience with MES/ERP/MRP, SQL, Python, APIs, automation, AI-enabled workflows, and strong documentation/testing habits.
MES, ERP, MRP, PLM, QMS, Python, Java, C#, SQL, APIs, Git, RPA, Slack, Teams
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2mo
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Forward Deployed Engineer
Los Angeles or San Francisco
$215k-$250k/yr HybridFull Time
Skiffra
Skiffra: Private AI software building orchestration systems for mining and other industrial operators.
4+ YOERequires 4+ years of relevant technical experience, customer-facing deployment leadership, systems and data integration skills, and proficiency with SQL, Python, APIs, cloud services, or enterprise platforms. U.S. work authorization required.
SQL, Python, APIs, SAP, PI, Wonderware
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Controls Engineer SCADA
Irvine, California, United States
$85k-$135k/yr HybridFull Time
Wunderlich-Malec Engineering
Wunderlich-Malec Engineering: Employee-owned U.S. engineering and systems integration firm providing automation, architecture, and IT/OT services to industrial clients.
5+ YOEBachelor's degree in engineering or computer science; 5+ years controls engineering experience; proficiency in Rockwell Automation, Ignition, SQL Server, Python; leadership and mentoring skills; up to 35% travel.
SCADA, HMI, DCS, Ignition, PlantPAx, Sepasoft, VBA, .NET, SQL, Python, REST API, Ethernet/IP, Profinet, FactoryTalk, SQL Server
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1mo
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Applied AI Engineer
San Francisco or Los Angeles or Washington or San Diego or Seattle or London
$150k-$170k/yr HybridFull Time
CHAOS Industries
CHAOS Industries: Redefining modern defense with a multi-product portfolio.
2+ YOERequires BS, MS, PhD, or equivalent experience in a technical field; 2–5 years software development experience; strong Python; production AI/ML systems, model evaluation, APIs, distributed systems, containers, CI/CD, and edge deployment.
Python, APIs, Containers, CI/CD, GPU
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3mo
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Forward Deployed Engineer
Marina Del Rey or San Francisco or Los Angeles
$125k-$175k/yr HybridFull Time
Sift Stack
Sift Stack: Private software providing telemetry observability to engineering teams building mission-critical hardware.
2+ YOE2+ years software or data engineering experience, proficiency in Python and REST APIs, EMR not mentioned; strong communication, customer-facing skills, bachelor\u0002s degree in STEM required.
Python, REST APIs, Sift APIs, Kafka, InfluxDB, SQL, AWS, GCP, Azure
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2mo
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Middleware Solutions Engineer I
Los Angeles, California, United States
$93k-$109k/yr OnsiteFull Time
Otter
Otter: Restaurant POS software for restaurant operators that unifies ordering, payments, delivery apps, and kitchen operations.
2+ YOERequires 2–5 years of customer-facing technical support, operations, or account management experience; project coordination; cloud production experience; SQL, scripting, APIs, monitoring, and troubleshooting skills.
SQL, JavaScript (JS), Python, APIs, GCP, AWS, JIRA
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