[Remote] Full Stack Engineer

Note: The job is a remote job and is open to candidates in USA. LightFeather is seeking a Senior Full Stack Engineer to support a federal government client in modernizing critical mission systems for DHS ICE. The role involves owning full stack delivery, translating complex legacy systems into scalable software, and developing modern application designs.ResponsibilitiesDesign, develop, and maintain full stack applications supporting modernization of DHS ICE systemsAnalyze legacy systems and workflows to identify core functionality vs. unnecessary process overheadTranslate operational requirements into scalable, modern application designsDevelop backend services, APIs, and integration layers connecting legacy environments to modern platformsBuild and enhance user-facing components using modern front-end technologiesSupport the full SDLC: analysis, design, development, testing, deployment, and maintenanceTroubleshoot issues across application, integration, and data layersCollaborate with stakeholders to clarify requirements and improve system behaviorParticipate in code reviews and uphold engineering best practicesSkillsU.S. Citizenship is required with the ability to obtain and maintain a Public Trust clearanceBachelor's degree in Computer Science or related field (or equivalent experience)7+ years of hands-on full stack software development experienceExperience working in complex or enterprise system environmentsStrong experience with Java and frameworks such as Spring BootExperience designing and implementing RESTful APIsExperience with front-end technologies including JavaScript, React, HTML, and CSSExperience working with relational databases and data access patternsAbility to troubleshoot across multiple layers of an application stackExperience working in Agile or iterative delivery environmentsAbility to analyze and simplify complex systems and workflowsStrong systems thinking and problem-framing capabilityComfort working in ambiguous, poorly documented environmentsAbility to distinguish between essential functionality and legacy process bloatStrong ownership mindset and accountability for outcomesEffective communication with both technical and non-technical stakeholdersHigh learning agility and willingness to adopt new platforms and toolsExperience with legacy system modernization or transformation effortsExperience supporting federal or mission-driven environmentsExposure to enterprise data platforms or large-scale system integrationsExperience working in environments where requirements must be derived from real-world usage rather than formal documentationCompany OverviewLightFeather is an IT consulting firm that provides UI/UX design, DevSecOps, cybersecurity, analytics, data science, and cloud services. It was founded in 2018, and is headquartered in Washington, District of Columbia, USA, with a workforce of 51-200 employees. Its website is https://lightfeather.io.