Staff / Sr Staff Application Security Engineer
$98k - $146kScitec
Job Description
Job Description
SciTec, 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: SciTec exclusively works on U.S. government contracts that require U.S. citizenship for all employees. Applicants that do not meet this requirement will not be considered.
SciTec has an immediate opportunity for a talented engineer to support our programs delivering Next-Generation Missile Warning software. This is a unique opportunity to join a business delivering core capabilities for National defense. You will work within a fast-paced team delivering end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence.
We are seeking an Application Security Engineer to help secure mission-critical software systems by identifying, analyzing, and mitigating application-level vulnerabilities. This role focuses on hands-on security analysis, tooling integration, and working directly with software engineers to embed security into the development lifecycle.
The ideal candidate combines strong technical security skills with the ability to collaborate effectively with developers in a DevSecOps environment.
Responsibilities- Perform application security analysis using both automated and manual techniques, including:
- Static code analysis (SAST)
- Software composition analysis (SCA)
- Fuzzing
- Manual code and design reviews
- Identify, analyze, and help remediate application vulnerabilities
- Support software engineers in integrating security considerations into system and application designs
- Integrate and maintain application security tooling within CI/CD and DevSecOps pipelines
- Design, implement, and improve continuous integration security analysis tooling
- Tune and maintain security tools to reduce false positives and improve signal quality
- Assist development teams in understanding findings and implementing effective fixes
- Support threat modeling and secure design reviews
- Stay current with emerging vulnerabilities, attack techniques, and mitigation strategies
- Document findings, recommendations, and best practices
- Perform other duties as assigned
Requirements
- Bachelor’s degree plus 2+ years of professional experience in cybersecurity or software development, or equivalent experience
- 2+ years of experience focused on application/software security
- Experience analyzing source code for security flaws
- Familiarity with secure software development practices
- Strong analytical, problem-solving, and communication skills
- Detail-oriented with strong written and verbal communication abilities
- Ability to qualify for and maintain a DoD or DoE Secret security clearance
- Ability to meet DoD 8140.01 Cyberspace Workforce Management requirements within six months of hire
- Good verbal and written communication skills
- Attention to detail
Candidates who have any of the following skills will be preferred:
- Active DoD Secret clearance or higher
- Experience identifying, exploiting, and remediating application vulnerabilities
- Credit for published CVEs is a strong plus
- Proficiency in one or more programming languages such as C++, Python, JavaScript, Rust
- Experience configuring and operating static analysis tools (e.g., Coverity, Klocwork, SonarQube)
- Experience configuring and operating software composition analysis tools (e.g., Snyk, Sonatype, Anchore, JFrog Xray)
- Experience with fuzzing frameworks (AFL, AFL++, honggfuzz, or similar)
- Experience with debugging, runtime instrumentation, or reverse engineering, including tools such as:
- strace
- eBPF
- Ghidra or IDA Pro
- Familiarity with threat modeling methodologies and frameworks such as MITRE ATT&CK
- Experience working in DevSecOps or Agile development environments
*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.
Benefits
SciTec offers a highly competitive salary and benefits package, including:
- 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
- 100% company paid Hospital Indemnity insurance
- Voluntary Accident and Critical Illness 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 $98,000 - $146,000 / year. SciTec considers several factors when extending an offer of employment, including but not limited to the role and associated responsibilities, a candidate's work experience, education/training, and key skills. This is not a guarantee of compensation.
SciTec is proud to be an Equal Opportunity employer. VET/Disabled.
$115.8k - $151.94k
...people matter.Shift:The regular hours for this position are day shift.Job Description:We are seeking a highly motivated Senior Applications Engineer- Cryogenic Test & Measurement to support customers using advanced cryogenic wafer probing systems for semiconductor, quantum...SeniorFull timeLive inLocal areaRemote workFlexible hoursShift workDay shift$120k - $140k
...Colorado (HQ) Reports To: Director of Engineering Business Unit: Heavy Lifting Systems... ...Summary The Senior Technical Applications Engineer serves as the senior technical... ...your health, well-being, and financial security. Our comprehensive benefits include:...SeniorTemporary workWork experience placementLocal areaRemote workWorldwideOverseasFlexible hours$117.68k - $175.05k
...Boulder, CO, has an opportunity for a Sr Photonics Research Engineer with experience as a technical... ...the ability to obtain and maintain a security clearance due to government contract... ...layoutExperience in applying PIC systems to application areas such as optical phased arrays,...SeniorContract work$117.68k - $175.05k
OverviewSRI is seeking a Senior Research Engineer with deep expertise in RF and Systems... ...embedded computing, software, and firmware. Applications include radar, communications,... ...obtain and maintain a U.S. government security clearanceTechnical ExpertiseStrong background...SeniorWork at officeRemote work$50 per hour
...DescriptionDevelops, designs, verifies, and documents Application-Specific Integrated Circuits (ASIC) and... ...Programmable Gate Array (FPGA) Design Engineer to work on space-based mission... ...will be subject to a government security investigation and must meet eligibility...SeniorFull timeTemporary workWork experience placementCasual workRemote workFlexible hours$102k - $157k
...technologies in support of U.S. National Security and Defense. For the past forty-five... ...to obtain and keep a security clearance. Applicants that do not meet these requirements will... ...talented software & algorithm developers and engineers to support programs focusing on low-...SeniorTemporary workFor contractorsWork experience placementImmediate startRemote workFlexible hours$63.87k - $95.01k
OverviewSRI is seeking a Research Engineer (Level I or II) onsite in Boulder, CO, to support... ...systems for sensing and real-time applications. This role emphasizes embedded software... ...and embedded Linux/Ubuntu systems using secure command-line workflows.Perform hardware...InternshipLocal areaRemote work$96k - $156k
...technologies in support of U.S. National Security and Defense. For the past forty-five... ...require U.S. citizenship for all employees. Applicants that do not meet this requirement will... ...SciTec is seeking a Test Automation Engineer to design, build, and maintain a continuous...SeniorTemporary workFor contractorsWork experience placementRemote workFlexible hours$140k - $175k
...computational breakthroughs. Join a world-class team of scientists, engineers, and business professionals to advance the state-of-the-art... ...to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying...SeniorTemporary workWork at office3 days per week$140k - $170k
...the Role: We are seeking a highly skilled Senior Software Engineer with deep expertise in FreeBSD and low-level systems programming... ...and grow in your career with peers second to none. Applications will be accepted through Tuesday, September 23, 2025. Spectra...SeniorFull timeLocal areaFlexible hours$156.67k - $215.44k
...missions and systems that keep our world secure in the domain above Earth. Sierra Space... ...About the RoleThe Senior Embedded Software Engineer role at Sierra Space brings extensive... ...Government international trade regulations, applicant must be a U.S. Citizen, lawful permanent...SeniorPermanent employmentFull timeContract workWork experience placement- ...thousands of independent websites stay independent. As a Software Engineer within Sovrn Labs you will be tasked with architecting, coding... ...~4+ years professional experience implementing web applications ~ Strong software design and architectural skills ~ Strong...SeniorFull time
$120k - $140k
...biomedical, semiconductor, industrial, consumer products, scientific, security, defense and aerospace sectors. ENGAGE with us today and make... ...EXCEL. The OpportunityWe are currently seeking an Automation Engineer/Sr who will be responsible for supporting and improving...SeniorTemporary work$126k - $180k
...debugging, either independently or in partnership with Product Engineering teams.Improve product feature offerings by providing partner... ...+ equity + benefitsLearn more about benefits at Google.The application window will be open until at least September 10th, 2026. This...Worldwide$50 per hour
...software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered... ...software depot team is looking for an experienced software engineer to support the Next Gen GEO program's command and control software...SeniorFull timeTemporary workWork experience placementCasual workFlexible hoursNight shiftAfternoon shift$176k - $264k
...Workday’s products.About the RoleEvisort Engineering is growing! As a Fullstack Software... ...range for that role if performed in CO.The application deadline for this role is the same as... ...value our candidates’ privacy and data security. Workday will never ask candidates to apply...SeniorFull timeContract workWork at officeRemote workHome officeFlexible hours$168k - $252k
...AI Model Serving team is the engine behind every production Workday... ..., readability, and security across code bases.Develop documentation... ...decisions.(P4) Sr. SDE Basic Qualifications6+ years... ...role if performed in CO.The application deadline for this role is the...SeniorFull timeWork experience placementWork at officeRemote workHome officeFlexible hours$50 per hour
...software, subject matter to be programmed in business/mission applications, information processing techniques used, and information gathered... ...software depot team is looking for an experienced software engineer to support the Next Gen GEO program's command and control software...SeniorFull timeTemporary workWork experience placementCasual workFlexible hoursNight shiftAfternoon shift- Job-ID31545712Reference25-04520 Responsibilities: To support the Biostatistics team by carrying out programming activities of statistical programmers and overseeing external vendors (as required), and to ensure timely and accurate programming and validation activities for...Senior
- ...Create SAS macros or other tools to enhance the efficient delivery of statistical services, providing associated documentation and staff training as needed. Program quality checks for clinical study raw data and report findings. Review or author SDTM and ADaM specifications...SeniorShift work
- Job-ID31668223Reference25-04725 Responsibilities: Lead the development, validation, and documentation of CDISC-compliant SDTM and ADaM datasets for CNS clinical trials, ensuring traceability from raw data through analysis outputs. Program and QC tables, listings, and figures...SeniorInterim roleRemote workShift work
$150k - $180k
...Job Description Job Description Senior Embedded Software Engineer — Job Description About Us eGauge Systems is an established... ..., and meeting updates are entirely open and accessible to all staff members. For anyone who has been at the firm longer than a year...SeniorFull timeTemporary workWork at officeRemote workFlexible hours$110k - $150k
...RemotePosition Description:KPA is seeking a Senior Information Security Engineer to serve as the senior technical counterpart to the Director... ...and cloud workloads, including SAST, DAST, Snyk, and other application security technologies.Own and continually improve KPA's...SeniorFull timeRemote work- ...to drive improved outcomes with significant returns on investment. Description Amplifire is seeking a Senior QA Automation Engineer to help improve software quality through strong automation practices, thoughtful test strategy, and modern AI-assisted workflows....Senior
$200k - $300k
...at Hudson River Trading (HRT) creates high performance compute engines using FPGA and ASIC technology to drive low latency trading decisions... ...a place where everyone is valued. HRT is proud of our diverse staff; we have offices all over the globe and benefit from our varied...Work at officeLocal areaImmediate startFlexible hours$120k - $146k
...technologies in support of U.S. National Security and Defense. For the past forty-five... ...require U.S. citizenship for all employees. Applicants that do not meet this requirement will... ...an immediate opportunity for a talented engineer to support our programs delivering Next-...SeniorTemporary workFor contractorsWork experience placementImmediate startRemote workFlexible hours- Envision Energy’s Global Blade Innovation Center (GBIC) was established in 2015 to develop an in-house blade design group. Blade design engineers from industry-leading OEMs, national labs, and top graduates have collaborated for the past 11 years, leveraging the best of their...
$200k - $300k
...Trading (HRT) is seeking a Physical Design Engineer with a broad, versatile skillset to join... ...PrimeTime)This job is accepting ongoing applications and there is no application deadline.The... ...is valued. HRT is proud of our diverse staff; we have offices all over the globe and...Work at officeLocal areaImmediate start$113k - $141.53k
...energy. The Senior BESS Product Safety Engineer is a core technical authority for BESS safety... ...tested, and deployed in compliance with applicable fire codes and safety standards.This... ...Verify Notice: AES will provide the Social Security Administration (SSA) and if necessary,...SeniorFull timeFor contractorsWorldwideFlexible hours$139.3k - $203.6k
The application window is expected to close on: 09/25/2026Meet the Team The Application Security team is a high-impact group dedicated to safeguarding our customer-facing products... ...cross-functional relationships with engineering teams to drive long-term security maturity...Full timeTemporary workLocal areaRemote workFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Staff / Sr Staff Application Security Engineer. Be the first to apply!
- senior staff systems engineer Boulder, CO
- engineering aide Boulder, CO
- assistant engineer Boulder, CO
- technology administrator Boulder, CO
- staff engineer Boulder, CO
- senior application support engineer Boulder, CO
- application performance engineer Boulder, CO
- senior application security engineer Boulder, CO
- senior app developer Boulder, CO
- app developer Boulder, CO



