Senior Full-Stack Engineer — Mission-Critical Apps

Jobtome; Sedalia (MO); On-site; USD 97,000 - 180,000; Full time

Benefits offered by this job

Health insurance

Disability insurance

401(k) match

Flexible spending accounts

Education assistance

Parental leave

Paid time off

Company-paid holidays

Job summary

L3Harris Technologies is seeking a Senior Specialist, Software Engineering (Full Stack) to lead design and implementation of secure, scalable mission applications within MOSSAIC. You will work across backend services, APIs, and web interfaces using Java, Python, TypeScript, and JavaScript for sensor integration and C2 workflows.

The role requires 6+ years of experience, active security clearance, and travel up to 15%.

Qualifications

• Bachelor's Degree and minimum 6 years of prior relevant experience. Graduate Degree and 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.

Skills

Active Security Clearance

Leadership

Full-stack software design

Code reviews

Mentorship

Delivery planning

Coordination with partner teams

Travel readiness

Security practices

Education

Bachelor's Degree

Graduate Degree

Tools

Java

Python

TypeScript

JavaScript

C/C++

Rust

Go

Kubernetes

Apache Kafka

RabbitMQ

ZeroMQ

NATS

GTK/Qt

Job description

L3Harris Technologies is seeking a Senior Specialist, Software Engineering (Full Stack) to lead design and implementation of secure, scalable mission applications within MOSSAIC. You will work across backend services, APIs, and web interfaces using Java, Python, TypeScript, and JavaScript for sensor integration and C2 workflows.

The role requires 6+ years of experience, active security clearance, and travel up to 15%.