Sr/Senior Software Engineer; Clearance Required
Listed on 2026-06-12
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IT/Tech
Systems Engineer, IT Support, Cybersecurity, Network Security
Sci Tec, a wholly owned subsidiary of Firefly Aerospace, is a dynamic non-traditional defense contractor that delivers advanced technologies in support of U.S. National Security and Defense. For the past forty-five plus years, we have supported Department of Defense customers by developing innovative remote sensing algorithms, tools, and techniques to deliver world-class data exploitation capabilities supporting missile defense; intelligence, surveillance, & reconnaissance;
space domain awareness; and aircraft survivability missions.
Important Notice:
Sci Tec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Sci Tec cannot sponsor or assume sponsorship of employee work visas of any type. Further, U.S. citizenship is a requirement to obtain and keep a security clearance. Applicants that do not meet these requirements will not be considered.
Sci Tec is seeking a Sr Staff/Senior Software Engineer to support programs delivering Missile Defense Solution software in an operational setting. You will work within a fast-paced environment on a team supporting end-to-end software processing of Overhead Persistent Infra Red (OPIR) sensor data for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence. This is a key role that focuses on customer-facing onsite support and system optimization, keeping systems running, troubleshooting issues, and reporting software defects.
The ideal candidate is a well-rounded, experienced software engineer that excels in an onsite, customer-facing role, as an adept software system troubleshooter and solution provider.
Responsibilities- Support the availability, reliability, and performance of operational services supporting critical mission systems
- Monitor health of software infrastructure using metrics, logs, and alerts; respond to and resolve incidents; maintain and enhance monitoring, logging, and alerting solutions
- Perform root-cause analysis for infrastructure and service outages; implement corrective and preventative actions; participate in post-incident reviews
- Improve system reliability through automation, standardization, and proactive engineering
- Support software system lifecycle activities including upgrades, patches, and configuration changes
- Improve performance, scalability, and reliability of existing software systems
- Apply strong understanding of data structures, algorithms, and performance trade-offs
- Support integration, testing, and debugging in Linux environments
- Support documentation, knowledge sharing, training, and clear communication across the organization
- Perform other duties as assigned
- Bachelor's degree in computer science, engineering, mathematics, physical sciences, or a related technical field
- 6+ years of professional software engineering experience
- An active TS/SCI DoD security clearance
- 3+ years of professional experience working in Linux environments
- Solid understanding of software engineering best practices and commitment to high-quality code
- Demonstrated performance optimization skills for data-intensive or compute-intensive systems
- Ability to work onsite in-person at Buckley Space Force Base in Aurora, Colorado
- Effective communication skills and attention to detail
Candidates who have any of the following skills will be preferred:
Preferred Skills- An advanced degree in computer science, engineering, mathematics, physical sciences, or a related technical field
- Experience working with mission critical data processing workflows for remotely sensed data (OPIR, EO/IR, SAR, Spectral, RF or similar)
- Experience with software development, integration, and deployment within government frameworks
- Knowledge of cloud environments and transitioning from on-prem solutions
- Experience with software containerization and orchestration, including Docker or Podman and Kubernetes
- Experience with Agile/Scrum methodologies and tools, including Jira and Confluence
- Experience with operational planning activities
- Experience providing customer support and help desk activities
- Resumes, Cover Letters, and Applications which are generated by AI will not be considered for employment.
Colorado Residents:
In any materials you submit, you may redact or remove age-identifying information such as age, date of birth, or dates of school attendance or graduation. You will not be penalized for redacting or removing this information.
- 4% Safe Harbor 401(k) match
- 100% company paid HSA Medical insurance, with a choice of 2 buy-up options
- 80% company paid Dental insurance
- 100% company paid Vision insurance
- 100% company paid Life insurance
- 100% company paid Long-term Disability insurance
- Short-term Disability insurance
- Annual Profit-Sharing Plan
- Discretionary Performance Bonus
- Paid Parental Leave
- Generous Paid Time Off, including Holiday, Vacation, and Sick Pay
- Flexible work hours
The pay range for this position is $130,000 - $170,000/ year. Sci Tec considers several factors when extending an offer of employment, including but not limited to the role…
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