Senior Staff/Senior Application Security Architect (Clearance Required)

SciTec, a subsidiary of Firefly Aerospace, stands as a pioneering non-traditional defense contractor, specializing in delivering cutting-edge technologies that bolster U.S. National Security and Defense. With over 45 years of dedicated service to the Department of Defense, we excel in developing innovative remote sensing algorithms, tools, and techniques that provide top-tier data exploitation capabilities for missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability missions.Important Notice: SciTec exclusively engages in U.S. government contracts that mandate U.S. citizenship for all employees. Applicants who do not meet this criterion will not be considered.We have an exciting opportunity for a Senior Application Security Architect in our Boulder, CO office. The ideal candidate will possess a robust understanding of the Software Development Lifecycle (SDLC) and Risk Management Framework (RMF). This role is crucial in supporting our Application Security (AppSec) team to ensure that the software systems developed by SciTec comply with Federal information system mandates while meeting customer expectations. The candidate will work closely with customer Cybersecurity stakeholders and SciTec software development teams. We seek individuals with excellent technical communication abilities and a strong background in secure software development practices.Responsibilities:Formulate software requirements and provide implementation guidance based on the analysis of NIST 800-53 and other relevant security controls.Collaborate closely with customer Cybersecurity experts to guarantee that SciTec software aligns with their security needs.Document and generate evidence illustrating how SciTec software systems satisfy NIST 800-53 and other security controls. Develop and manage Plans of Action and Milestones (POAMs) to address any identified gaps.Evaluate outcomes and identify corrective actions following security assessments and penetration testing.Assist SciTec development teams in designing system architectures that fulfill established Cybersecurity requirements and customer specifications.Mentor staff and contribute to process improvements within the SciTec AppSec and software engineering teams.Perform additional duties as assigned.

SciTec, a subsidiary of Firefly Aerospace, stands at the forefront of innovation as a non-traditional defense contractor. With over 45 years of experience, we provide cutting-edge technologies to bolster U.S. National Security and Defense. Our commitment to excellence has empowered the Department of Defense with state-of-the-art remote sensing algorithms, advanced tools, and techniques that enhance data exploitation for critical missions including missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.We are excited to announce an immediate opening for a highly skilled Senior Program Development Manager (PDM) who possesses a strong technical background and a proven history of driving business growth. This pivotal role will focus on aligning business development and program initiatives with our strategic goals. This in-office position is located in Boulder, Colorado, and reports directly to the Executive Director of Program Development. The PDM will play a crucial role in identifying, tracking, and capturing new business opportunities within designated Strategic Campaigns, as well as leading proposal efforts.Key Responsibilities:Develop and sustain a robust pipeline of program opportunities within assigned Strategic Campaigns, contributing to the overall corporate strategy.Guide opportunities through a milestone-based process, culminating in either proposal development or a no-bid decision.Serve as Proposal Manager for assigned proposals, coordinating with technical teams to develop compelling proposal content, including technical solutions, win themes, features, benefits, proof points, and visuals.Establish and manage proposal schedules and budgets, ensuring prompt delivery of all necessary content.Create teaming strategies and formulate teaming agreements and subcontract RFPs.Produce marketing materials that effectively communicate SciTec’s capabilities and solutions to clients and industry partners.Provide updates to corporate and portfolio leadership regarding the status and advancements of the new business pipeline and initiatives.Support pre-award activities, including customer inquiries, BAFO responses, and engagement with teammates.

SciTec, a dynamic subsidiary of Firefly Aerospace, specializes in advanced technologies that bolster U.S. National Security and Defense. For over 45 years, we've empowered Department of Defense customers by pioneering innovative remote sensing algorithms, tools, and techniques. Our work enhances data exploitation capabilities across critical missions, including missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: SciTec solely engages in U.S. government contracts, necessitating U.S. citizenship for all employees. We are unable to sponsor or assume sponsorship of employee work visas of any kind. U.S. citizenship is also required to obtain and maintain a security clearance. Applicants who do not fulfill these criteria will not be considered.We are currently seeking experienced Staff and Senior Staff Cybersecurity Engineers to join our team.

SciTec, a proud subsidiary of Firefly Aerospace, stands at the forefront of innovative defense solutions, dedicated to enhancing U.S. National Security and Defense. Over the past four decades, we have collaborated with the Department of Defense to pioneer cutting-edge remote sensing algorithms, tools, and techniques, delivering exceptional data exploitation capabilities for vital missions, including missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: All applicants must possess U.S. citizenship as SciTec exclusively handles U.S. government contracts. We cannot provide visa sponsorship for work permits of any kind. U.S. citizenship is necessary to obtain and retain a security clearance. Applications from individuals who do not meet this criterion will not be considered.We are seeking a highly skilled Senior Software Engineering Manager to lead the development and delivery of critical software solutions for national defense initiatives. This pivotal role merges extensive technical knowledge with proactive leadership, ensuring the delivery of secure and resilient software that performs under pressure. The Software Engineering Manager will facilitate the team's efforts to produce high-quality capabilities that align with program objectives and operational demands. If you are driven by the desire to create impactful solutions, SciTec is the ideal environment for your talents.

What You Will Do:As a Senior Solutions Architect specializing in our Space Services portfolio, you will become an integral part of a dynamic team dedicated to delivering innovative space-based solutions to the commercial sector. You will collaborate directly with Spire Account Executives and our diverse customer base to grasp operational needs, assess opportunities, and architect tailored space-driven solutions. In close partnership with satellite architects and engineering teams, you will create customer-centric solutions that utilize Spire's cutting-edge small satellite platforms, payload capabilities, and global infrastructure.The Senior Solutions Architect role demands a profound understanding of the complexities involved in building, launching, and operating small satellites. With an emphasis on Space Services, you will gain in-depth knowledge of Spire's satellite subsystems, payload functionalities, and system interfaces crucial for customers looking to integrate their systems onto our network. Candidates who excel in this role will possess extensive technical expertise in space system design, complemented by exceptional communication skills and a knack for thriving in customer-focused environments. You will support business development initiatives for both commercial and government contracts, manage technical requirements negotiations, and ensure that customer mission objectives are met through the proposed solutions. This position will serve as the key technical representative of Spire to our clients, requiring confidence in presenting at various levels in high-pressure situations.

About the Role As a Senior Software Engineer specializing in Product Security, you will engage in the hands-on design and implementation of security-focused software solutions. Your primary objective will be to integrate security into our development processes from the outset. This includes the incorporation of automated controls like Software Bill of Materials (SBOM) and vulnerability scanning within our CI/CD pipelines. You will also be responsible for maintaining and enhancing our internal libraries and infrastructure related to authentication, authorization, and logging, while aiding in the deployment of monitoring tools for operational services. Additionally, you will work closely with the Principal Security Engineer and various teams to align our systems with NIST 800-171/CMMC requirements. In this impact-driven environment, you will prioritize the delivery of secure code and architecture, with minimal bureaucracy. You may occasionally participate in security discussions with government entities under the guidance of the Principal Security Engineer. Approximately 80-90% of your work will be hands-on, with the remaining time dedicated to collaboration and learning.

About Speechify Speechify builds text-to-speech tools that help people read and learn without barriers. More than 50 million users rely on Speechify to turn PDFs, books, Google Docs, news articles, and websites into audio. The platform helps users read faster, remember more, and access content in new ways. Products include apps for iOS, Android, and Mac, a Chrome extension, and a web app. Recent recognition includes Chrome Extension of the Year by Google and the 2025 Design Award for Inclusivity from Apple. Our Team Speechify has a distributed team of nearly 200 professionals working remotely from around the world. The engineering and research group includes alumni of Amazon, Microsoft, and Google, as well as academic experts from Stanford and startup veterans from Stripe, Vercel, and Bolt. Many team members have also founded their own companies.

Job DescriptionOverviewWe are seeking a talented Senior HDL Systems Architect to play a pivotal role in advancing our cutting-edge RF systems. This position transcends traditional FPGA development; we are looking for an experienced professional who has evolved from a strong HDL developer to a strategic systems thinker—capable of envisioning the broader context, understanding critical tradeoffs, and leading architectural design initiatives.In this role, you will collaborate closely with multidisciplinary teams to design, develop, and enhance high-performance digital systems for various RF and antenna applications. You should excel in a collaborative, engineering-centric environment and relish the opportunity to make a tangible impact in a dynamic R&D setting where your contributions will influence real-world products.Key Responsibilities Design and implement system-level digital signal processing and control solutions utilizing HDL (Verilog, VHDL, or similar). Lead design decisions from initial requirements through to system integration and validation. Collaborate with RF, embedded software, and hardware teams to create cohesive and efficient systems. Mentor junior HDL developers and foster a culture of technical excellence within the team. Manage design documentation, simulation, and testing strategies at both the module and system levels. Assess trade-offs and component selection during architectural design phases. Utilize build systems and Linux environments to support hardware integration and bring-up. Additional InformationThis position does not have direct supervisory responsibilities.Please note that this job description is not exhaustive and may be subject to change based on business needs.Physical DemandsThis role is conducted in a professional office and laboratory setting. The position frequently requires the use of laboratory equipment such as vector network analyzers, signal generators, and spectrum analyzers. Regular communication is essential, and specific vision abilities required include close vision and the ability to adjust focus. The role may involve lifting files and equipment up to 25 pounds and using a ladder for overhead tasks. Reasonable accommodations may be made to support individuals with disabilities.Position Type/Expected Hours of WorkThis is a full-time position requiring at least 40 hours per week. Typical office hours are Monday to Friday, 8:00 am to 5:00 pm; however, these hours may vary based on workload and management discretion.

Join SciTec, a leading non-traditional defense contractor and a subsidiary of Firefly Aerospace, as we deliver cutting-edge technologies that bolster U.S. National Security and Defense. For over forty-five years, we have been at the forefront of innovation by providing advanced remote sensing algorithms, tools, and techniques designed to enhance missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability missions.Important Notice: Due to the nature of our work, SciTec exclusively engages in U.S. government contracts that necessitate U.S. citizenship for all employees. Applicants who do not meet this citizenship requirement will not be considered.We are excited to announce an immediate opening for a skilled Application Security Engineer to contribute to our Next-Generation Missile Warning software programs. This role offers a unique chance to be part of a dedicated team that provides essential capabilities for national defense. You will engage in end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data for missions related to Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence.The ideal candidate will possess strong technical security expertise alongside effective collaboration skills within a DevSecOps environment, enabling them to work closely with software engineers to integrate security into the software development lifecycle.

SciTec, Inc., a proud subsidiary of Firefly Aerospace, is a leading non-traditional defense contractor dedicated to providing cutting-edge technologies that bolster U.S. National Security and Defense. For over 45 years, we have partnered with Department of Defense clients to create innovative remote sensing algorithms, tools, and methodologies that enhance data exploitation capabilities across missile defense, intelligence, surveillance and reconnaissance, space domain awareness, and aircraft survivability missions.We are excited to announce a new opening for a Program Development Manager (PDM) who possesses a robust technical background and a knack for business development. This position, based at our Boulder, Colorado office, requires an on-site presence. As a PDM, you will work closely with our Executive Director of Program Development to align business growth with our strategic initiatives. Your primary responsibilities will include identifying, tracking, and pursuing new business opportunities within designated Strategic Campaigns, leading proposals, and functioning both independently and as part of a team in high-pressure situations.

Your Impact:We are in search of skilled offensive security experts to spearhead security assessments, conduct red team operations, and execute network exploitation initiatives tailored to meet our clients' security needs.Your Responsibilities:Conduct offensive cyber operations to evaluate client networks and pinpoint vulnerabilities.Analyze computer networks and systems to uncover and assess security gaps.Perform in-depth analysis of malware and security tools to assess their capabilities.Deliver detailed written and verbal briefings on assessment outcomes to clients and management.Provide training and mentorship to junior operators on tools, techniques, and industry best practices.Design and develop scripts and tools to enhance operational efficiency.

We are seeking a highly skilled and experienced Lead Senior Staff Software Engineer specializing in front-end fundamentals to join our innovative team at The Trade Desk. In this role, you will lead the development of cutting-edge front-end solutions that enhance user experience and drive our product's success. You will collaborate closely with cross-functional teams, guiding junior engineers and fostering a culture of excellence in software development.

Join SciTec, a dynamic and innovative subsidiary of Firefly Aerospace, as we push the boundaries of technology in support of U.S. National Security and Defense. For over 45 years, we have been at the forefront, providing advanced solutions that enhance missile defense, intelligence, surveillance, reconnaissance, and aircraft survivability missions.Note: All applicants must be U.S. citizens due to the nature of our government contracts.We are seeking a skilled Staff Systems Engineer to join our team in Boulder, Colorado. This is an exceptional opportunity to contribute to the development of Next-Generation Missile Warning software. You will collaborate with a dedicated team, focusing on the complete software processing of Overhead Persistent InfraRed (OPIR) sensor data, enhancing capabilities for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence. If you are passionate about tackling engineering challenges that impact national security, we want to hear from you!

Join SciTec, a forward-thinking subsidiary of Firefly Aerospace, where we are redefining the landscape of defense contracting by delivering cutting-edge technologies that bolster U.S. national security and defense initiatives. For over 45 years, we have been at the forefront of innovation, providing the Department of Defense with advanced remote sensing algorithms, tools, and techniques that enhance data exploitation capabilities for critical missions including missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: All employees at SciTec must be U.S. citizens, as we exclusively engage in government contracts that require citizenship to obtain and maintain security clearance. We do not sponsor work visas of any kind, and applicants who do not meet these criteria will not be considered.As we expand, we seek passionate and mission-driven Staff and Senior Staff DevSecOps Engineers who are eager to make a significant impact—beyond just code. If you thrive on tackling complex challenges that matter, we invite you to be part of our team.

Join SciTec, a leading non-traditional defense contractor dedicated to advancing U.S. National Security and Defense. With over 45 years of experience, we have consistently supported the Department of Defense by developing cutting-edge remote sensing algorithms, tools, and techniques that enhance missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability missions.Important Notice: All SciTec employees must be U.S. citizens due to our exclusive focus on U.S. government contracts. Applications from non-citizens will not be considered.We are currently seeking a skilled engineer to join our team and contribute to the development of Next-Generation Missile Warning software. This role offers a unique chance to work within a small, agile team that plays a critical role in national defense. You will be responsible for processing Overhead Persistent InfraRed (OPIR) sensor data for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence.As a Staff or Senior Staff Rust Software Engineer, you will design, implement, and enhance high-performance software systems in a secure and mission-driven environment. This position is ideal for an experienced engineer who excels in independent work on complex technical challenges, contributes to system architecture and design, and collaborates effectively with cross-functional teams.

SciTec, a subsidiary of Firefly Aerospace, develops technologies for U.S. National Security and Defense. With over forty years in the field, the team specializes in remote sensing algorithms and data exploitation, supporting areas such as missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability. Important Notice: Only U.S. citizens may apply, as required by government contracts. Applications from non-citizens cannot be considered. Role overview This Staff or Senior Staff Rust Software Engineer position is based in Boulder, Colorado. The role centers on building Next-Generation Missile Warning software, processing Overhead Persistent InfraRed (OPIR) sensor data to support missions including Missile Warning, Missile Defense, and Battlespace Awareness. What you will do Design, build, and enhance high-performance software systems using Rust Work in a secure environment focused on national defense Collaborate with a multidisciplinary team to address technical challenges Contribute to architectural decisions for mission-critical software Process and analyze OPIR sensor data for various defense applications Requirements Experience with Rust and high-performance systems Ability to work independently and solve complex technical problems Strong collaboration and communication skills across teams Commitment to supporting national security missions

Join SciTec, a pioneering force in advanced technology and defense solutions, where we are dedicated to supporting U.S. National Security and Defense. As a proud subsidiary of Firefly Aerospace, we have a rich legacy of over 45 years in delivering innovative remote sensing algorithms, tools, and techniques that enhance data exploitation capabilities for our Department of Defense clients.Important Notice: Please be aware that all positions at SciTec require U.S. citizenship due to the nature of our government contracts. We cannot provide visa sponsorship for employment. Additionally, U.S. citizenship is necessary to obtain and maintain a security clearance. Applicants who do not meet these criteria will not be considered.We are currently seeking a skilled software test engineer to play a vital role in our team, contributing to the development of Next-Generation Missile Warning software. This is a remarkable chance to be part of a compact yet dynamic business that delivers essential capabilities for national defense. You will collaborate with a fast-paced team, engaging in end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data, which is critical for Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence initiatives. This position is based on-site in Boulder, CO.Responsibilities:Decomposing functional requirements to align with system and domain-level needsCreating comprehensive test plans and casesExecuting tests across multiple environments and supporting test executionDeveloping automated testing suitesParticipating in reviews of test engineering artifactsConducting performance analyses, risk assessments, and trade studiesMaintaining test documentation following management protocolsCompleting tasks to meet program schedule milestonesAdditional responsibilities as assignedQualifications:Bachelor's degree in physical sciences, mathematics, engineering, or computer scienceA minimum of 3 years of experience in software test engineering rolesAt least 1 year of experience in software development or test automation, preferably using PythonStrong team collaboration skillsExcellent verbal and written communication abilitiesMeticulous attention to detailAbility to obtain and maintain a DoD security clearancePreferred Qualifications:Experience testing Overhead Persistent InfraRed (OPIR) processing systemsFamiliarity with formal requirements verification for government programsExperience with Model-Based Systems Engineering (MBSE)An active DoD security clearance*Resumes, Cover Letters, and Applications generated by AI will not be considered for employment.

SciTec, a fully owned subsidiary of Firefly Aerospace, stands at the forefront of innovation as a unique defense contractor dedicated to enhancing U.S. National Security and Defense. With over 45 years of experience, we have proudly supported Department of Defense initiatives by developing cutting-edge remote sensing algorithms, tools, and techniques that provide unparalleled data exploitation capabilities for missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability missions.Important Notice: All positions at SciTec require U.S. citizenship due to the nature of our government contracts. We are unable to sponsor work visas of any kind, and citizenship is also necessary to obtain and maintain security clearances. Applicants who do not meet these criteria will not be considered.We are currently seeking a skilled Senior Storage Engineer to join our talented team in Boulder, CO. The ideal candidate will possess extensive experience in data center design, configuration, and maintenance, and will be adept in hardware procurement. A hands-on approach to solving complex data center challenges is essential, along with a collaborative spirit and a commitment to mentoring junior team members. Candidates should exhibit exceptional problem-solving abilities, a passion for data security and protection, and a strong focus on meeting customer needs.

We are seeking an experienced Infrastructure Architect to join our dynamic team at stemxpert1. In this pivotal role, you will design and implement robust infrastructure solutions that support our innovative projects and initiatives. You will work closely with cross-functional teams to ensure that our infrastructure meets business requirements and industry standards.

Join SciTec, a leading subsidiary of Firefly Aerospace, dedicated to delivering cutting-edge technologies that bolster U.S. National Security and Defense. With over 45 years of experience, we support the Department of Defense by developing innovative algorithms and tools for advanced data exploitation in missile defense, intelligence, surveillance, reconnaissance, space domain awareness, and aircraft survivability.Important Notice: All candidates must be U.S. citizens due to the nature of our government contracts. Applications from non-eligible candidates will not be considered.We are looking for a skilled Senior Software Platform Engineer to play a pivotal role in our team, contributing to the development of Next-Generation Missile Warning software. This is an exceptional chance to work with a small, agile company, providing essential capabilities for national defense. You will be part of a fast-paced team responsible for the end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data related to Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence.As a key technical contributor on our Platform as a Service (PaaS) team, you will focus on application integration at a customer site. Your primary responsibilities will include building, operating, and refining platform capabilities that empower development teams to reliably deploy, operate, and scale applications in containerized environments.