Senior Full-Stack Software Engineer — Secret-Clearance Ready

Jobtome; Franktown (VA); On-site; USD 97,000 - 180,000; Full time

Benefits offered by this job

Health insurance

401(k) match

Flexible spending accounts

Education assistance

Parental leave

Paid time off

Holiday pay

Job summary

L3Harris is seeking a Senior Specialist, Software Engineering (Full Stack) to join the MOSSAIC Agile Portfolio Engineering team in a Colorado Springs setting. You will lead the design and implementation of secure, scalable mission applications and services using Java, Python, TypeScript, and JavaScript to support sensor integration and C2 workflows.

The role emphasizes mentoring engineers, driving secure development practices, and coordinating with partner teams.

Qualifications

• Bachelor's Degree and minimum 6 years of prior relevant experience.
• Graduate Degree with a minimum of 4 years of prior related experience.
• In lieu of a degree, minimum of 10 years of prior related experience.
• Active Secret Security Clearance.

Responsibilities

• Lead technical design and implementation of full-stack software capabilities, including backend services, application programming interfaces, and web user interfaces.
• Design scalable software using Java, Python, TypeScript, and JavaScript for service-oriented architecture and microservices-based systems.
• Define secure integration patterns, service contracts, and data exchanges across distributed systems.
• Guide code reviews, software testing, technical documentation, and secure-development practices.
• Resolve complex software and integration issues across development, test, and deployment environments.
• Provide technical guidance and mentorship to software engineers while supporting sound engineering decisions.
• Coordinate technical dependencies with partner teams and contribute to delivery planning and execution.
• Travel up to 15% as needed to support program and customer requirements.

Skills

Java

Python

TypeScript

JavaScript

Security clearance

Education

Bachelor's Degree

Graduate Degree

Tools

Kubernetes

Docker

Apache Kafka

RabbitMQ

ZeroMQ

NATS

GTK/Qt GUI

Job description

L3Harris is seeking a Senior Specialist, Software Engineering (Full Stack) to join the MOSSAIC Agile Portfolio Engineering team in a Colorado Springs setting. You will lead the design and implementation of secure, scalable mission applications and services using Java, Python, TypeScript, and JavaScript to support sensor integration and C2 workflows.

The role emphasizes mentoring engineers, driving secure development practices, and coordinating with partner teams.