LMI is seeking a Full Stack Software Engineer to join the team supportingIronGate, a mission-ready data acquisition and transfer platform built for complex federal environments. It enables agencies to securely acquire commercial data and bring it into government networks through a self-service UI portal or direct-to-network push with full visibility, governance, and compliance at every step. You99ll work across the stack94from AngularandReactr-based UI workflows to Node/Express APIs and PostgreSQL data models94helping us deliver secure, scalable capabilities that support cyber threat detection, asset protection, and operational decision-making.

You99ll collaborate closely with product owners, designers,DevSecOps, and fellow engineers to iterate quickly on features, modernize existing components, and shape the future architecture as we incorporate technologies like Spark, Hudi, Elasticsearch, and Kong. This is a hands-on engineering role focused on building and operating production systems, not just prototypes. An active Secret security clearance is required.

What You99ll Do

• Build and maintain full-stack featuresfor IronGate using Angular (v21+), TypeScript, Node.js, and Express, spanning UI workflows, API development, and data persistence.

• Design and develop new and existing application features inReact, ensuring consistency and interoperability with Angular-based components where required.

• Develop and document RESTful APIswithOpenAPI/Swagger, supporting secure, well-structured services consumed byIronGate99sfront end and external integrations.

• Design and optimize data modelsin PostgreSQL (AWS RDS), with attention to indexing, query performance, and reliability in IL5/IL6-style environments.

• Work within a Kubernetes-based architecture, helping design, containerize, deploy, and operate backend services andcron-style job schedulers.

• Enhancefrontend UXusing Angular, React, andPrimeNG, building intuitive, responsive, and reusable components tailored to mission users and their workflows.

• Support data integration flowsusing Airbyte and related extract/load pipelines to bring inasset,threat, and operational data from external sources.

• Collaborate on security and resilience, integrating services with AWS GuardDuty malware protection and following secure coding andDevSecOpsbest practices.

• Participate in code reviews and design sessions, shaping API contracts, data schemas, and modular architectures that are testable, maintainable, and scalable.

• Embrace AI-driven development practices, helping define guardrails, validation layers, and test coverage to keep AI-assisted code safe and production-ready.

• Support automated testingacross the stack (unit, integration, and end-to-end) and contribute to CI/CD pipelines for reliable, repeatable deployments.

• Troubleshoot and optimizediagnose bugs, address performance bottlenecks, and help ensure high availability and observability in containerized environments.

• Contribute to future architecture evolution, providing input as we adopt technologies like Apache Spark, Apache Hudi, Elasticsearch, Kong, and Python-based APIs (FastAPI/Flask).

What We99re Looking For

• 6+ years of relevant software engineering experience, with demonstrated full stack responsibilities in production environments.

• Demonstrated expertise infull stack developmentwith modern JavaScript/TypeScript frameworks.

• Proven experience developing applications in React, including building and maintaining production React-based frontends.

Strong frontend skills:

• Experience withAngular(or comparable modern front-end framework) and TypeScript.

• Hands-on experience buildingReactapplications (hooks, component composition, state management, routing).

• Solid grasp ofHTML, CSS, responsive design, and component-based UI patterns.

• Experience with UI libraries such asPrimeNGor similar.

Strong backend skills:

• Node.js and Express.jsfor building RESTful APIs.

• Experience designing and consumingOpenAPI/Swaggerspecifications.

• Hands-on work withrelational databases(PostgreSQL preferred), including SQL, indexing, and query optimization.

• Experience deploying and operating services inKubernetesand working with containerized applications (Docker, Helm, etc.).

• Familiarity withjob scheduling(cron-style schedulers) and event-driven or batch processing patterns.

• Experience usingAI-enabled development tools(e.g., GitHub Copilot, code assistants) to rapidly ship software, with an understanding of how to validate and harden AI-generated code.

• Experience with testing tools across the stack (e.g., Jest,Vitest, Cypress, Playwright, or similar) and a track record of building automated validation and end-to-end testing into delivery.

• Familiarity withsecure software development practices, including code scanning, dependency management, and security testing.

• Comfort withCI/CD pipelines(GitHub Actions, GitLab CI, or similar) and Git-based workflows.

• Comfortable withAgile/Lean, rapid delivery cycles, and direct user feedback loops.

• Active Secret security clearancerequired.

Bonus Points For

• Hands-on work insecure government environments(DoD, IL5+, FedRAMP) or mission systems.

• Experience integrating or operatingAWS services, including RDS, S3, and GuardDuty.

• Exposure todata engineering or analytics stackssuch as Apache Spark, Apache Hudi, and Elasticsearch.

• Experience withAPI gateways(e.g., Kong) and service mesh / zero-trust patterns.

• Background ingeospatial applications, mapping, or spatial analytics.

• Certifications such asSecurity+,AWS Developer/Architect, or Kubernetes-related certifications.

• Prior experience instartup or rapid-growth teams, or in building greenfield platforms within larger organizations.

Target salary range: $122209.58 - $211317.81

The salary range displayed represents the typical salary range for this position and is not a guarantee of compensation. Individual salaries are determined by various factors including, but not limited to location, internal equity, business considerations, client contract requirements, and candidate qualifications, such as education, experience, skills, and security clearances.

#LI-SH1