Senior Full-Stack Engineer - Remote Modernization & APIs

Lightfeather Io Llc; Northern (KY); Remote; USD 90,000 - 115,000; Full time

Job summary

LightFeather IO LLC seeks a Senior Full Stack Engineer to deliver modernized, scalable software for a federal government client. You will own full stack delivery, translate legacy behavior into modern architecture, and work remotely with EST hours.

The role requires a 7+ year track record in full stack development, strong Java/Spring Boot and REST API experience, and the ability to navigate enterprise systems within Agile teams. A Public Trust clearance is anticipated.

Qualifications

• U.S. Citizenship is required with the ability to obtain and maintain a Public Trust clearance.
• Bachelor's degree in Computer Science or related field (or equivalent experience).
• 7+ years of hands-on full stack software development experience.
• Experience working in complex or enterprise system environments.
• Strong experience with Java and frameworks such as Spring Boot.
• Experience designing and implementing RESTful APIs.
• Experience working with relational databases and data access patterns.
• Ability to troubleshoot across multiple layers of an application stack.
• Experience working in Agile or iterative delivery environments.
• Ability to analyze and simplify complex systems and workflows.
• Strong systems thinking and problem-framing capability.
• Comfort working in ambiguous, poorly documented environments.
• Ability to distinguish between essential functionality and legacy process bloat.
• Strong ownership mindset and accountability for outcomes.
• Effective communication with both technical and non-technical stakeholders.
• High learning agility and willingness to adopt new platforms and tools.

Responsibilities

• Design, develop, and maintain full stack applications supporting modernization of systems.
• Analyze legacy systems and workflows to identify core functionality vs. unnecessary process overhead.
• Translate operational requirements into scalable, modern application designs.
• Develop backend services, APIs, and integration layers connecting legacy environments to modern platforms.
• Build and enhance user-facing components using modern front-end technologies.
• Support the full SDLC: analysis, design, development, testing, deployment, and maintenance.
• Troubleshoot issues across application, integration, and data layers.
• Collaborate with stakeholders to clarify requirements and improve system behavior.
• Participate in code reviews and uphold engineering best practices.

Skills

Java

Spring Boot

REST APIs

Full Stack Development

Agile

Problem Solving

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

SQL Databases

Job description

LightFeather IO LLC seeks a Senior Full Stack Engineer to deliver modernized, scalable software for a federal government client. You will own full stack delivery, translate legacy behavior into modern architecture, and work remotely with EST hours.

The role requires a 7+ year track record in full stack development, strong Java/Spring Boot and REST API experience, and the ability to navigate enterprise systems within Agile teams. A Public Trust clearance is anticipated.