> Markdown version of [/jobs/ext/3651250-senior-specialist-software-engineering-full-stack](https://www.wearedevelopers.com/jobs/ext/3651250-senior-specialist-software-engineering-full-stack). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Specialist, Software Engineering (Full Stack)

- **Company:** L3Harris Technologies, Inc.
- **Location:** Peyton, CO, United States
- **Experience:** Expert
- **Salary:** $97,000.0 - $180,000.0
- **Contract:** Permanent contract
- **Skills:** Testing (Software), Java (Programming Language), JavaScript (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Automation of Tests, C++ (Programming Language), Code Review, Continuous Delivery, Continuous Integration, Data Sharing, Distributed Systems, Graphical User Interface, Design of User Interfaces, Human-Computer Interaction, Python (Programming Language), Qt (Software), RabbitMQ, Message Oriented Middleware, Service-Oriented Architecture, Software Engineering, Data Streaming, Systems Integration, TypeScript, ZeroMQ (Concurrent Programming Libraries), Backend, Kubernetes, Apache Kafka, Microservices
- **Published:** October 9, 2026
- **Apply:** https://www.disabledperson.com/jobs/75962861-senior-specialist-software-engineering-full-stack

## About the Role

* 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.

Preferred Additional Skills:

 * Experience developing software using C/C++, Rust or Go.
 * Experience developing production software using Java, Python, TypeScript, and JavaScript.
 * Experience designing and integrating service-oriented architectures, asynchronous messaging patterns, and microservices-based applications.
 * Experience designing application programming interfaces, service contracts, and integrations for distributed systems.
 * Experience leading technical design, code reviews, automated testing, and software-delivery activities.
 * Experience improving continuous integration and continuous delivery workflows for software teams
 * Experience building native graphical user interfaces using GTK or Qt.
 * Experience applying user interface and user experience design principles to production software.
 * Experience defining technical approaches for complex full-stack applications.
 * Experience deploying or supporting containerized applications in Kubernetes environments.
 * Experience with event-streaming or message-bus technologies, such as Apache Kafka, RabbitMQ, ZeroMQ, or NATS.

## Description

The Maintenance of Space Situational Awareness Integrated Capabilities (MOSSAIC) Agile Portfolio Engineering (APE) program serves the space domain awareness (SDA) customer through optical and radar sensors and associated command and control (C2) capabilities. The program is seeking a senior specialist full-stack software engineer to join its Special Projects team. You will lead technical design and implementation of secure, scalable mission applications and services using Java, Python, TypeScript, and JavaScript to support sensor integration, command-and-control workflows, and user-facing mission capabilities., * 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., L3Harris Technologies is proud to be an Equal Opportunity Employer. L3Harris is committed to treating all employees and applicants for employment with respect and dignity and maintaining a workplace that is free from unlawful discrimination. All applicants will be considered for employment without regard to race, color, religion, age, national origin, ancestry, ethnicity, gender (including pregnancy, childbirth, breastfeeding or other related medical conditions), gender identity, gender expression, sexual orientation, marital status, veteran status, disability, genetic information, citizenship status, characteristic or membership in any other group protected by federal, state or local laws. L3Harris maintains a drug-free workplace and performs pre-employment substance abuse testing and background checks, where permitted by law.