Top Application Engineer Jobs in Los Angeles, CA

Lead a small scrum team as the daily technical authority: write and review full-stack C#/.NET and Angular code, run scrum ceremonies, set priorities, unblock engineers, enforce quality standards, drive AI-first tooling adoption, manage 4–5 engineers, engage client stakeholders, and coordinate cross-team delivery and release readiness.

As a Senior Application Software Engineer, you will design and develop mission-critical software for satellite operations, collaborating with cross-functional teams to improve efficiency, scale, and support ambitious missions.

As a Principal Application Software Engineer, you will design mission-critical software for satellite design and production, improve operations, and mentor staff.

Provide technical support and development for OSV enterprise applications. Investigate and resolve application issues, log and manage support tickets, develop and test fixes, monitor production, and produce technical documentation. Partner with development teams, product owners, and vendors to prioritize defects and deploy solutions while supporting Workday, Salesforce, SQL Server, and cloud-based integrations.

Design, develop, and implement enterprise-scale web and API-based applications. Collaborate with business analysts and architects to build solutions using low-code/no-code BPMN tools, MuleSoft Anypoint, .NET, MS SQL Server, and web technologies. Maintain secure remote work practices for government CUI environments and participate in Agile ceremonies.

Design, build, and deliver AI-driven Salesforce Agentforce agents and intelligent automations. Develop integrations, test automations, debug Apex/JavaScript/Python code, produce technical documentation, mentor junior engineers, participate in DevOps and QA, and support transformational projects and high-priority incidents.

The Application Software Engineer will work with customers to customize and integrate Sift's telemetry platform, develop solutions, and maintain customer relationships. They will collaborate with various teams to translate requirements and enhance workflows.

Build and maintain FactoryOS frontend and backend systems connecting production workflows, equipment telemetry, part tracking, and quality traceability. Implement services, APIs, and database models, integrate with factory equipment and sensors, and collaborate with manufacturing and operations to deliver practical factory tools and engineering standards.

Lead Developer responsible for the health and reliability of SaaS platforms, managing incident triage, problem management, and team leadership while implementing AI tools.

Develop reliable software solutions for K2 Space's satellite operations, collaborating with engineers and leaders to improve design and operations.

Design, manage, and implement Appian-based applications for financial services and insurance clients. Capture requirements with Tech Leads, translate business needs into solutions, deliver custom Appian implementations, collaborate with architects and delivery teams, and develop reusable assets, accelerators, and best practices.

Lead design, development, modernization, and support of enterprise middleware and API integration services for the IRS. Provide technical leadership for Java-based integration solutions using IBM webMethods and cloud-native microservices on OpenShift/Kubernetes. Responsibilities include API development, system integration, application modernization, production support, troubleshooting, and delivery within Agile/DevSecOps environments.

Modernize legacy enterprise applications for the IRS by migrating to cloud-native architectures: replatforming Java apps, implementing Spring Boot microservices, containerizing on OpenShift/Kubernetes, enabling CI/CD and enterprise integration, and designing technical solutions to support Common API Services.

The Principal Application Modernization Engineer leads technical architecture, ensures code quality, integrates AI solutions, and mentors engineers while managing client relationships.

The Senior Software Engineer will design and develop IMS TM and DB-compatible technologies, providing architectural leadership and mentoring while optimizing mission-critical applications for modern environments.

The Senior Application Support Engineer leads efforts to ensure application reliability, manages incidents, collaborates with teams, and monitors performance, providing 24/7 support.

Designs and develops enterprise-scale applications, collaborating with business analysts and system architects. Implements web- and API-based solutions using Java, .NET, AngularJS, JavaScript, SOAP/REST, MuleSoft, and low-code/no-code BPMN tools (Appian, Salesforce, Nintex) with SQL Server in agile/hybrid environments.

The Windchill Application Developer will develop, implement, test, and maintain Windchill solutions, collaborate with teams, and troubleshoot application issues for the US Navy.