35 application integration engineer jobs at 26 companies in Fallbrook, CA

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Building Controls Application Engineer
San Diego or Dallas or Chicago or Waco or Boston or Ashburn or Houston or Lehi or Denver
$120k-$130k/yr HybridFull Time
Mantis Innovation
Mantis Innovation: Provides managed facility services and energy procurement solutions.
10+ YOE10+ years engineering experience, 5+ years BMS application development; DDC and PLC programming, BACnet/Modbus/Ethernet-IP integrations, Niagara (Niagara N4), Ignition, Wonderware, Distech, networking knowledge, and Microsoft Office proficiency.
BMS, SCADA, DDC, PLC, BACnet, Modbus, Niagara, Niagara N4, Ignition, Wonderware, Distech, Ethernet/IP, SNMP, MQTT, Microsoft Office
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Application & Systems Engineer (Los Angeles, CA, US)
Los Angeles or San Diego
$110k-$150k/yr RemoteFull Time
dormakaba
dormakabaSIX Swiss Exchange: DOKA: Manufactures and services building access and security systems.
3+ YOEBachelor's in CS/Engineering, 3+ years application/systems engineering, strong Python, REST API/JSON/OAuth experience, test automation and CI/CD, familiarity with access control protocols (OSDP, Wiegand), and mobile wallet integrations.
Python, REST API, JSON, OAuth, SDKs, Apple Wallet, Google Wallet, NFC, BLE, OSDP, Wiegand, CI/CD
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Senior Electrical Integration Engineer, High Speed Air Vehicle
Costa Mesa, California, United States
$146k-$194k/yr OnsiteFull Time
Anduril Industries
Anduril Industries: Defense technology building autonomous military hardware and software.
Bachelor's in Electrical or Mechanical Engineering required; proficiency designing electrical harnessing for rugged/aerospace applications, familiarity with CAN, Ethernet, RS422, RS232, MIL-STD-1553, strong communication skills, and eligibility to obtain U.S. Secret clearance. Siemens Capital experience preferred.
CAN, Ethernet, RS422, RS232, MIL-STD-1553, Siemens Capital, FPGA, PCB assemblies
3w
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Software Integration Test Engineer -SCADA
Irvine or Houston
$65k-$105k/yr HybridFull Time
ETAP
ETAP: Electrical power system modeling and analysis software solutions.
2+ YOE2+ years testing software integrations or enterprise/industrial applications; REST API and OPC UA familiarity; basic power systems understanding; strong troubleshooting and communication; U.S. work authorization required.
Postman, Swagger, Insomnia, OPC UA, Wireshark, Fiddler, JSON, XML, SQL, Python, PowerShell, Jira, REST APIs, OAuth
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Senior Application Security Engineer
Irvine or North Chicago
$110k-$209k/yr HybridFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
5+ YOEExperience in application security, implementing and supporting SAST/DAST/IAST/SCA, CI/CD integration, cloud (AWS/Azure), IaC (Terraform/CloudFormation); strong secure coding knowledge (Java, Node.js); effective communicator.
SAST, DAST, IAST, SCA, CI/CD, AWS, Azure, Terraform, CloudFormation, Snyk, Endor Labs, Python
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Senior Application Engineer (Oracle Fusion HCM Applications)
Vienna or Pensacola or Winchester or San Diego
$115k-$180k/yr HybridFull Time
Navy Federal Credit Union
Navy Federal Credit Union: Offers banking and financial services to the military community.
Bachelor's in IT/CS, deep Oracle HCM Cloud expertise (OIC, HCM Extracts, HDL), PL/SQL and middleware (MuleSoft), BI Publisher/OTBI/FBDI, REST/SOAP, integration and security experience, leadership and communication skills.
Oracle Integration Cloud (OIC), HCM Extract, HDL, HSDL, BI Publisher, OTBI, FBDI, PL/SQL, MuleSoft, REST, SOAP, Fast Formula, Page Composer, Page Configurator, VBCS, Redwood Design System, Oracle AI Agent Studio
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Customer Software Application Engineer
San Diego, California, United States
$130k-$180k/yr OnsiteFull Time
Seasats
Seasats: Builds autonomous surface vessels for persistent maritime intelligence.
2+ YOE2+ years technical experience, strong Python proficiency, troubleshooting and hardware/software integration experience, customer-facing communication and technical writing skills, networking familiarity, must be U.S. person eligible to work.
Python, Linux, bash, SSH, SCP, RS-485, RS-232, CAN, Ethernet, TCP, UDP
4d
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AI Integration Architect
Milwaukee or Irvine or Dallas or Austin or United States
$134k-$200k/yr OnsiteFull Time
Cotality
Cotality: Provider of property intelligence, data, and analytics solutions.
7+ YOE7–10 years software engineering/architecture experience building LLM-powered or agentic AI applications; strong backend skills (Python/Java/.NET); API, security, and CI/CD experience; familiarity with agentic frameworks and AI observability.
LangChain, LlamaIndex, AutoGen, Python, Java, .NET, OAuth 2.0, JWT, Apigee, Kong, MCP, LiteLLM, Snowflake, Databricks, GCP, Docker, Kubernetes, Terraform, NVIDIA Device Plugins, CUDA, ROCm, vLLM, Triton
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Systems Engineer II
San Diego, California, United States
$112k-$141k/yr HybridFull Time
XSITE
XSITE: Provides systems engineering and integration for defense and space.
3+ YOEBachelor's in engineering and 3 years' experience integrating network OS, applications, and hardware; supports systems development lifecycle, documentation, and cross-functional coordination.
AI/ML, MBSE, Modeling & Simulation
3d
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Senior Test Engineer
San Diego, California, United States
$140k-$220k/yr OnsiteFull Time
INflow Federal
INflow Federal: Provides IT modernization and cybersecurity for defense missions.
8+ YOEDesign and execute test plans/procedures, support integration and system verification for space-ground cloud applications; BA in engineering, 8+ years experience, Top Secret/SCI clearance, strong systems engineering and communication skills.
Jenkins, Docker, Postman, GitHub, GitLab, Java, XML, JSON, SQL, Javascript, AWS, C2S
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Sr. Engineer, Vehicle Applications
Riverside, California, United States
$110k-$130k/yr OnsiteFull Time
ENC
ENC: Manufacturer of heavy-duty transit buses and shuttle vehicles.
5+ YOELead integration of customer configurations; analyze specs; generate and review engineering docs. 5+ years in manufacturing/transportation. Bachelor's inMechanical or Electrical Eng.
SolidWorks, PLM, 3D CAD
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Field Solutions Engineer - Solar
Irvine, California, United States
$90k-$135k/yr FieldFull Time
Luminys Systems Corporation
Luminys Systems Corporation: Provides smart, AI-powered security, surveillance, and building management solutions.
5+ YOE5+ years in field application engineering or technical support; strong experience with off-grid solar power systems, DC power, MPPT charge controllers, CCTV/IoT integration, network configuration, travel to customer sites, and technical communication.
off-grid solar power systems, DC power systems, MPPT charge controllers, CCTV, IoT, video management software
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EE Firmware and Applications Engineer
San Diego, California, United States
OnsiteFull Time
Cohu
CohuNASDAQ: COHU: Provides semiconductor test, handling, and inspection equipment and services.
5+ YOEMinimum 5 years in firmware development and application support for complex mechatronic systems; Bachelor's in CE/EE; strong C/C++; MCU/RTOS; hardware-software integration; travel readiness.
C, C++, ARM Cortex-M, RTOS, GIT, SVN, UART, SPI, I2C, CAN, EtherCAT, JTAG, Logic analyzers, Oscilloscope, Thermal systems, Motion control
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Staff Systems Engineer
Carlsbad, California, United States
$134k-$175k/yr OnsiteFull Time
MaxLinear
MaxLinearNASDAQ: MXL: Provides radio-frequency and mixed-signal semiconductor solutions for communications.
3+ YOEExperience validating ASICs for optical modules and data center applications, high-speed serial interfaces and re-timer design, signal integrity and DSP expertise, test automation, PCB/simulation (ADS, Cadence, Matlab), BS/MS/PhD with relevant years of experience.
ADS, Cadence, Matlab, PCIe, Ethernet, SerDes
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Sr Platform Engineer II- Copilot Studio
Charlotte or Newport Beach
$168k-$205k/yr HybridFull Time
Pacific Life
Pacific Life: Provides life insurance, annuities, and investment products for financial security.
8+ YOE8+ years in application development/automation/AI or low-code solutions. Hands-on Microsoft Copilot Studio experience, Power Platform (Power Automate, Power Apps), enterprise integrations, SDLC/governance, testing, and strong communication and leadership skills.
Microsoft Copilot Studio, Power Platform, Microsoft Power Automate, Microsoft Power Apps, Azure OpenAI
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Advanced Applications Engineer, Experiences & Events
Conyers or Atlanta or Costa Mesa or United States
$83k-$164k/yr HybridFull Time
Acuity Inc.
Acuity Inc.NYSE: AYI: Provides lighting systems and building automation technologies.
8+ YOERequires 8+ years integration experience, Q-SYS certifications, advanced Lua and CSS skills, strong networking knowledge, live events/tradeshow experience, and ability to travel up to 30%.
Q-SYS Designer Software, Lua, CSS, Q-LAB, BrightSign, BrightAuthor
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Senior AI Engineer
Irvine or United States
$120k/yr RemoteFull Time
Success Lending
Success Lending: Modern, agent-aligned mortgage lending services for homebuyers.
3+ YOE3+ years AI/application or cloud engineering experience; hands-on with agentic frameworks, AI workflow tools, MCP, AWS Step Functions/Lambda, OpenAI/Anthropic/GCP/Azure, Python/JavaScript, SQL/pandas, and cloud integrations.
MCP, AWS Step Functions, AWS Lambda, OpenAI, Anthropic (Claude), GCP, Microsoft Azure, Devin, LOS, CRM, POS, LangChain, Transformers, boto3, GCP SDK, Azure SDK, RESTful APIs, SQL, pandas, JavaScript, Python
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Intapp Applications Engineer
Los Angeles or Boston or Tampa or New York or Orange County or Sacramento or Washington, D.C. or Chicago or San Diego or San Francisco or Albany
$140k-$170k/yr OnsiteFull Time
Manatt
Manatt: Provides legal, public advocacy, and business strategy consulting services.
7+ YOE7+ years IT experience (5+ in enterprise application admin); hands-on Intapp Conflicts/Open/Walls/Workspaces and Integration Builder experience; SQL/SQL Server, API/REST/SOAP, Microsoft Azure, Azure AD, Microsoft 365; SDLC and stakeholder communication skills.
Intapp Open, Intapp Conflicts, Intapp Walls, Intapp Terms, Intapp Integration Builder, Intapp Workspaces, Elite 3E, iManage, SQL Server, SSRS, REST, SOAP, FTP, Microsoft Azure, Azure Active Directory, Microsoft 365, Confluence, JIRA, Azure DevOps, ServiceNow, Cherwell
4w
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Staff Software Engineer - Virtual Expert Platform
San Diego, California, United States
OnsiteFull Time
Intuit
IntuitNASDAQ: INTU: Provides financial software for accounting, tax, and personal finance.
7+ YOEBS/MS in CS or equivalent, 7+ years building enterprise applications, strong Java and systems design skills, experience with microservices, containers (Kubernetes/Mesos), databases, CI/CD, testing, and AI integration; excellent communication.
Java, Kubernetes, Mesos
2w
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Senior Salesforce Developer – Enterprise Applications
Irvine or San Francisco or Santa Clara
OnsiteFull Time
Qcells
Qcells: Provider of solar modules, energy storage, and EPC services.
10+ YOEBachelor's in CS or related, 10+ years software development, 6+ years Salesforce Apex/LWC, NetSuite integration experience, REST/SOAP/GraphQL, CI/CD with SFDX and GitHub, AI and DevOps exposure.
Apex, LWC, JavaScript, SOQL, SOSL, Flows, Platform Events, NetSuite, AWS, REST, SOAP, GraphQL, Boomi, MuleSoft, Informatica, SFDX, GitHub, GitHub Actions, PMD, Salesforce Einstein, Agentforce, AWS Lambda, API Gateway, S3, SQS, SQL, NoSQL, OAuth, Named Credentials

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