← Search all jobs

Software Engineer

Trinzic

Lexington, MA · Posted October 7, 2026

Just laid off? Start here: a plan for the first weeks

See every open role at Trinzic

More in Massachusetts job market · All Software Engineer jobs (2,001) · Manufacturing & Industrial · Engineering jobs

More roles at Trinzic

Similar jobs

Where Lexington, MA ranks

Where Lexington, MA placed in our monthly rankings, month by month. Each month stays online at its own address.

Pay compared with the market

This listing does not state pay. Across 793 open software engineer listings that state pay, the middle half runs $147,500 to $247,500 and the median is $193,000.

Listed pay is what employers advertise, not what people are paid.

Software Engineer salaries by state · Check your own pay

How AI is used in this kind of work

Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).

Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.

Check how this applies to your own job

Skills this job asks for

Say which you have and which you want to build. We use it to match you to jobs like this one.

  • Python
  • Java
  • Linux
  • Git
  • Matlab

About the job

Title: Software Engineer

Belong. Connect. Grow. with KBR!

At KBR, we deliver science, technology and engineering solutions to governments and companies around the world. KBR employs approximately 37,000 people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added services, and long-term operations and maintenance services to ensure consistent delivery with predictable results.

Trinzic is the future independent company to be created through the planned spin-off of KBR's Mission Technology Solutions business, expected in January 2027. Our people work at the frontier of what is possible, delivering solutions in challenging environments and advancing some of the world's highest-priority national security and space missions. Backed by decades of mission success, deep expertise, and trusted partnerships, Trinzic will launch as a global organization with more than 18,000 employees supporting customers around the world. Join us at a defining moment and help shape the future of a company built to tackle complex challenges and make a meaningful impact.

Candidates who join KBR's Mission Technology Solutions business before the spin-off will transition to Trinzic when the separation is complete and will not need to reapply for employment.

We are seeking a Software Engineer to contribute to the design, development, implementation, and testing of software for a series of large-scale communications system demonstrations. Work will be performed in a disciplined collaborative environment, employing modern programming practices. Hybrid and remote positions are possible for this position. These services shall be provided in support of several Laboratory and Government test sites. This position supports the Strategic and Long-Range Communications Group at MIT Lincoln Laboratory.

Why Join Us?

Innovative Projects: Enable critically important communications over vast distances by being the team member to innovate and overcome technical challenges as we spearhead new solutions through advanced prototyping.

Collaborative Environment: Come join a team of enthusiastic engineers engaged in creating the next generation of cutting-edge laser communication systems technology.

Impactful Work: Your contributions will be pivotal in designing and optimizing defense systems that ensure national security and shape the future of space defense and/or defense.

Key Responsibilities:

Software architecture definition

System software design and implementation (primarily in C++). This will include protocol and state machine design alongside system designers to translate prototype simulations into real-time code

Collaboration with a multidisciplinary team to design and prototype communications-based software

Integration, test design, and support from lab and field experiments

Aid in preparing technical documentation for software architectures and code, including technical specifications, reports, and technical presentations for multiple internal and external audiences

Work Environment:

Location: On-site with the possibility of a remote arrangement

Travel Requirements: Willing and able to travel (up to 10%, typically CONUS)

Working Hours: Standard

Required Qualifications:

Active DoD Secret clearance

M.S. in Software Engineering, Computer Science (or related field) with a strong background in real-time code development and code profiling. In lieu of an M.S. a B. Sci with 6+ years of directly relevant experience is acceptable

At least 5 years of C++/C++11 experience

At least 5 years of Java/Java Script experience

At least 5 years of Source Control (Git/SVN/Clearcase/etc.) experience

At least 5 years of object-oriented development

At least 5 years of software modelling and the Unified Modelling Language (UML) experience

A minimum of 5 years of experience in software deployment and a knowledge of modern software deployment techniques

A minimum of 5 years of experience in software DevSecOps

A minimum of 5 years of experience with software algorithm development and performance improvements

A minimum of 5 years of experience with design patterns and data structures

A minimum of 5 years of experience with distributed systems and inter process communication (UDP/TCP/ActiveMQ/etc.)

A minimum of 5 years of experience with the Linux development environment and/or commercial real-time operating systems

A minimum of 5 years of experience with hardware abstraction layers

A minimum of 5 years of experience with software lifecycle processes

Highly effective written and verbal communication skills especially applied to writing technical documents

Demonstrated ability to work effectively in multi-disciplinary teams

Desired Qualifications:

A minimum of 2-3 years’ experience with digital signal processing and implementation of protocols and methods into software

Familiarity with software-defined radio protocols, design, and implementations

Familiarity with physical layer, MAC layer, and network layer communication protocols

Proficiency in Python

Demonstrate familiarity with MATLAB

Demonstrated ability to plan and manage tasks and projects (e.g. using Microsoft Project)

Basic Compensation: For MA only, the salary range is approximately $156,400 - $180,000​ USD annually . The offered rate will be based on the selected candidate’s knowledge, skills, abilities and/or experience and in consideration of internal parity.

Ready to Make a Difference? If you’re excited about making a significant impact in the field of space defense and working on projects that matter, we encourage you to apply and join our team at KBR. Let's shape the future together.

Belong, Connect and Grow here

We are passionate about our people and our Zero Harm culture. These inform all that we do and are at the heart of our commitment to, and ongoing journey toward being a People First company. That commitment is central to our team of team’s philosophy and fosters an environment where everyone can Belong, Connect and Grow. We Deliver – Together.

We is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, disability, sex, sexual orientation, gender identity or expression, age, national origin, veteran status, genetic information, union status and/or beliefs, or any other characteristic protected by federal, state, or local law.