About this opportunity
Expedition Technology lists this Senior Software Engineer/Tech Lead - R142 opportunity in herndon, Virginia. Review the employer’s description below for duties, qualifications and application requirements.
Job description
Are you an engineer who enjoys owning the complete solution, from architecture and software design to deployment, observability, and operational excellence?
At Expedition Technology (EXP), we're looking for a Senior Software Engineer/Tech Lead to help design, build, and deliver mission-critical systems supporting the United States Government.
This role is for engineers who think beyond writing code. Successful candidates understand that great systems require thoughtful architecture, maintainable software, reliable deployment pipelines, strong observability, and operational resilience. You are comfortable moving between application development, cloud-native platforms, deployment automation, and technical leadership as mission needs evolve.
EXP is an AI-enabled engineering organization. We encourage engineers to leverage modern AI-assisted development tools such as GitHub Copilot, Claude Code, OpenCode, and similar technologies as part of their daily workflow. Successful candidates should be comfortable using these tools to improve productivity while maintaining strong technical judgment, code quality, and ownership of delivered solutions.
What You'll Do:
Design and implement scalable software systems, services, and internal tools using Python and modern engineering practices
Lead architectural decisions across application, deployment, infrastructure, and operational domains
Design systems with maintainability, security, resiliency, scalability, and observability as first-class concerns
Build and improve CI/CD pipelines and deployment automation workflows
Design, deploy, and support cloud-native applications running in containerized and Kubernetes-based environments
Establish and champion engineering best practices around testing, automation, monitoring, reliability, and software quality
Collaborate with software engineers, platform engineers, and mission stakeholders to deliver complete solutions
Troubleshoot and resolve complex issues across development, deployment, and production environments
Mentor engineers and provide technical leadership across projects and teams
Contribute to verification, validation, testing, and evaluation environments supporting mission needs
Skills and Experience You Bring:
U.S. Citizenship - must be a US citizen to fulfill clearance requirements
Active TS/SCI security clearance
Bachelor's degree in Computer Science, Engineering, or a related technical discipline
8+ years of professional software engineering experience
Expertise in one or more modern programming languages and the ability to quickly become productive in new technology stacks
Strong software engineering fundamentals independent of language or framework
Experience designing and delivering production software systems
Strong background in software architecture, system integration, and distributed systems
Experience building, deploying, and supporting containerized applications
Experience deploying and operating applications in Kubernetes-based environments
Experience building CI/CD pipelines and deployment automation solutions
Experience implementing monitoring, logging, tracing, and observability capabilities
Experience operating within cloud environments such as AWS
Strong troubleshooting, communication, and technical leadership skills
Preferred Qualifications:
Infrastructure-as-Code experience using AWS CDK, Terraform, CloudFormation, or similar technologies
GitLab CI/CD experience
OpenTelemetry experience
Experience supporting highly available or mission-critical systems
Experience mentoring and developing engineers
Experience incorporating AI-assisted development tools into engineering workflows
Who is Expedition Technology?
Expedition Technology (EXP) designs, develops, and delivers innovative solutions with national impact for the defense and intelligence communities. We use machine learning, artificial intelligence, and other advanced algorithms, platforms, and technologies to solve our customers' most complex, demanding and urgent C4ISR challenges. Our culture promotes individual growth and opportunity, prioritizes a collaborative team spirit, and invites the intellectually curious to solve challenging problems creatively. Headquarted in Northern Virginia's high-tech corrdor, EXP is a rapidly growing, privately held company that pushes the boundaries of what is possible every day.
To learn more about EXP and discover why we are an award-winning workplace, visit our web site and follow us on LinkedIn.
Interested in joining our team? Let's explore together.
Join Our Team and Enjoy Exceptional Benefits!
Expedition Technology (EXP) offers a flexible, self-directed benefits package that is designed to fit your individual needs. Here's a glimpse of the outstanding benefits you can enjoy when you join our team:
Company-paid medical, dental, and vision insurance
Generous Time Off : Enjoy 11 paid holidays, up to 34 days of PTO
Robust 401(k) Plan : Benefit from up to a 12% company contribution, including a 3% safe harbor, 6% match, and up to 3% additional as a form of profit sharing.
Student Loan Repayment : Take advantage of our unique option to reallocate a portion of your 401(k) match funds to repay student loans, helping you achieve financial freedom faster.
Paid Parental Leave : Six weeks of paid leave for the primary caregiver and 2 weeks of paid leave for the secondary caregiver for you to bond with your new family member.
Tuition Reimbursement : Pursue further education with up to $5,250/year available to support your continuous learning and growth.
Referral Bonus Program : Earn rewards for bringing talented individuals into our team.
Exclusive Entertainment Perks : Enjoy free tickets to sporting events, theater, concerts, and more, adding fun and excitement to your life.
Onsite Amenities : Stay fit and healthy with our free, onsite fitness center, active workstations featuring treadmill and bike desks, and enjoy our onsite cafeteria with reduced-cost options.
Inspiring Work Culture : Thrive in a collaborative, creative, and supportive culture where you are encouraged to push boundaries, take risks, and enjoy the rewards.
Join us and be part of a team that values your well-being and professional growth. Apply today and take the first step towards a fulfilling career with us!
EXP is proud to be an Equal Opportunity Employer that believes a diverse range of talent creates an environment that fosters creativity and innovation . All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, age, disability, national origin, genetic information, or protected veteran status.
Who can apply
Review the original listing for work authorization, qualifications and employer requirements.