Senior Specialist, Software Engineering (Full Stack)
At a glance
Senior Full-stack Engineering role at L3Harris Technologies. Colorado Springs · $97,000–$180,000 base.
techroles summary, based on the employer's posting.
What you'll do
- Lead the design and build of secure mission software across backend services, APIs and web interfaces
- Create Java, Python, TypeScript and JavaScript systems using service-oriented and microservices architectures
- Set patterns for secure connections, service agreements and data exchange between distributed systems
- Guide code reviews, testing and documentation, while resolving integration problems from development through deployment
- Mentor engineers and coordinate technical dependencies and delivery plans with partner teams
What you bring
- A bachelor's degree and six years of relevant experience, a graduate degree and four years, or ten years without a degree
- An active Secret security clearance
Who this fits
This senior technical role suits someone who can lead full-stack design while mentoring engineers, rather than focusing only on individual coding tasks. The position is based in Colorado Springs and may involve travel of up to fifteen percent. The schedule provides every other Friday off, with eighty hours worked over each fourteen-day period.
From the employer
Job Title: Senior Specialist, Software Engineering (Full Stack)
Job Code: 44012
Job Location: Colorado Springs, Colorado
Job Schedule: 9/80 - Employees work 9 out of every 14 days - totaling 80 hours worked (Every Other Friday Off)
Job 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.
Essential Functions:
- 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.
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.
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.
In compliance with pay transparency requirements, the salary range for this role in Colorado state is $97,000-$180,000. This is not a guarantee of compensation or salary, as final offer amount may vary based on factors including but not limited to experience and geographic location. L3Harris also offers a variety of benefits, including health and disability insurance, 401(k) match, flexible spending accounts, EAP, education assistance, parental leave, paid time off, and company-paid holidays. The specific programs and options available to an employee may vary depending on date of hire, schedule type, and the applicability of collective bargaining agreements.
The application window for this position will close on 10/30/2026.
Full-stack Engineering work from LinkedIn, X, Reddit and Upwork, in one list.
Each morning you get everything that fits, strongest first.
Full-stack Engineering$90k+
Find me workBy the team behind techroles.