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Senior Software Developer Security Clearance

Job in Herndon, Fairfax County, Virginia, 20170, USA
Listing for: Two Six Technologies
Full Time position
Listed on 2026-01-06
Job specializations:
  • Software Development
    Software Engineer, Full Stack Developer
Salary/Wage Range or Industry Benchmark: 125000 - 225100 USD Yearly USD 125000.00 225100.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Developer with Security Clearance
At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today. Through unrivaled collaboration and unwavering trust, we push the boundaries of what's possible to empower our team and support our customers in building a safer global future. Overview of Opportunity At Two Six Technologies, we build, deploy, and implement innovative products that solve the world's most complex challenges today.

Through unrivaled collaboration and unwavering trust, we push the boundaries of what's possible to empower our team and support our customers in building a safer global future. Within the intelligence portfolio at Two Six Technologies, our program engineers a cloud suite of applications and services empowering the Intelligence Community to share vital information, at speed, without compromising control. If you want to build the systems that protect highly sensitive data while ensuring it gets to those who need it most, your next mission starts here.

We're seeking an impact player to support our high-visibility mission-critical project bridging the gap between data accessibility and national security by solving complex, 'no-fail' problems. Two Six is looking for a talented Senior Software Developer to join our growing team. In this role you will design, develop, and debug mission critical software source code that meets the needs of our customers.

In addition, you will have the opportunity to research and integrate new capabilities into our client application. You will work closely with cross-functional teams to deliver a high-performance system and contribute to the overall architecture of our software solutions.

What you will do:

* Design, develop, and debug mission critical software applications and services
* Collaborate with product managers, designers, and other developers to define and deliver features
* Participate in/lead technical discussions analyzing requirements, design and engineering practices
* Troubleshoot, debug, and optimize system for performance and scalability
* Implement Zero Trust principles and secure protocols to protect data-in-transit across disparate networks.
* Tune and troubleshoot high-volume data streams to ensure low latency
* Extensive expertise in server less architectures

What you will need:

* Bachelor's degree in computer science or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience
* 10+ years of experience in software development
* Proficiency with a broad variety of back-end programming languages
* Proficiency with common web languages such as HTML, CSS, and Java Script  
* Proficiency with multithreaded and asynchronous programming
* Proficiency with relational database systems such as Postgre

SQL or MySQL
* Proficiency with computer and network security concepts
* Proficiency with common development tools such as version control (e.g. Git) and issue tracking systems (e.g. JIRA)
* Demonstrated experience with all major aspects of software development: design, coding, debugging, building, testing, and deploying
* Outstanding verbal and written communication skills to effectively collaborate with internal and external partners Nice to haves:
* Proficiency with Rust
* Proficiency with the Docker and containerization
* Proficiency with front-end web UI frameworks such as Vue.js
* Experience with Amazon Web Services
* Understanding of web accessibility Section 508 Standards Security Clearance:
* Active TS/SCI with Polygraph #LI-JS #LI-JB1 Two Six Technologies is committed to providing competitive and comprehensive compensation packages that reflect the value we place on our employees and their contributions. We believe in rewarding skills, experience, and performance. Our offerings include but are not limited to, medical, dental, and vision insurance, life and disability insurance, retirement benefits, paid leave, tuition assistance and professional development.

The projected salary range listed for this position is annualized. This is a general guideline and not a guarantee of salary. Salary is one component of our total compensation package and the specific salary offered is determined by various factors, including, but not limited to education, experience, knowledge, skills, geographic location, as well as contract specific affordability and organizational requirements.

Salary Range $125,000 - $225,100 USD Looking for other great opportunities? Check out Two Six Technologies Opportunities for all our Company's current openings! Ready to make the first move towards growing your career? If so, check out the Two Six Technologies Candidate Journey ! This will give you step-by-step directions on applying, what to expect during the application process, information about our rich benefits and perks along with our most frequently asked questions.

If you are undecided and would like to learn more about us and how we are contributing to essential missions,…
Position Requirements
10+ Years work experience
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