Senior Software Engineer - Modernization

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.

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.

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.

About the Role As a Software Engineer focused on Product Security at Spire, you will engage in the hands-on design and implementation of security software aimed at integrating security measures early in our development lifecycle. Your responsibilities will include embedding automated controls like Software Bill of Materials (SBOM) and vulnerability scanning within CI/CD pipelines, maintaining and enhancing our internal libraries and infrastructure for authentication, authorization, and logging, and assisting with operational monitoring tools. You will also play a key role in aligning systems with NIST 800-171/CMMC standards, closely collaborating with the Principal Security Engineer, AWS infrastructure team, development tooling team, chief software engineer, and cybersecurity/GRC group. In this lean and impact-driven environment, you will prioritize the delivery of secure code and architecture while minimizing bureaucratic hurdles, allowing you to focus on what truly matters. You may occasionally engage in security discussions with government entities under the guidance of the Principal Security Engineer. Your work will be approximately 80-90% hands-on, with the remaining time dedicated to collaboration and learning.

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.

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.

At Spire, we are enhancing our approach to security engineering on a robust foundation, featuring a standardized AWS developer platform, a well-established toolchain for satellite software, ISO 27001 certification, and ongoing collaborations with government customers worldwide. In our pursuit of achieving CMMC Level 2+ compliance for Controlled Unclassified Information (CUI) handling in a defense-relevant environment, we are looking for a seasoned technical lead to direct our product security strategy and implementation.Your primary role will be to 'shift security left' and weave it throughout our development processes. This includes embedding automated controls such as Software Bill of Materials (SBOM), vulnerability scanning, and secure CI/CD pipelines. You will also maintain standard libraries and infrastructure for authentication, authorization, and logging. Additionally, you will develop monitoring tools for operational services and assist teams in aligning their systems with NIST 800-171/CMMC and other security objectives whenever control inheritance is insufficient.This is a senior, hands-on individual contributor role with leadership responsibilities where you will code, configure, and debug while mentoring a small team of security engineers. As the technical leader of our Product Security Team, you will collaborate closely with our Chief Software Engineer to ensure alignment with security objectives and the software roadmap, our AWS infrastructure team for cloud hardening, our development tooling team for satellite software security, and the cybersecurity/governance, risk management, and compliance (GRC) group. We maintain a lean setup where bureaucracy is managed primarily by GRC and TPM teams, allowing you to focus on impactful coding and architecture improvements based on our existing strengths.In this role, you may also participate in discussions with peers at governmental entities and other organizations regarding security-related matters.

Join our dynamic team at Prosidian Consulting as an IT Service Management (ITSM) Security Engineer I. In this entry-level role, you will support the development and implementation of IT security measures to protect organizational data and infrastructure. You will assist in evaluating security risks, implementing security protocols, and ensuring compliance with industry standards. This is a fantastic opportunity for those looking to kickstart their career in IT security!

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. is an innovative small business that has secured multiple government contracts, contributing to national security and defense through state-of-the-art sensor data processing technologies and scientific instrumentation. Our team is dedicated to developing cutting-edge tools for the Department of Defense and U.S. Government, delivering unparalleled data exploitation capabilities.Important Notice: All employees at SciTec must be U.S. citizens, as we exclusively work on government contracts that require U.S. citizenship. We cannot sponsor any work visas, and U.S. citizenship is essential for obtaining and maintaining a security clearance. Consequently, applications from candidates who do not meet this requirement will not be considered.We are currently seeking a skilled Senior Systems Engineer to join our dynamic team and support the development of Next-Generation Missile Warning software. This role offers a unique chance to be part of a small business that plays a vital role in national defense. You will collaborate within a fast-paced environment, focusing on end-to-end software processing of Overhead Persistent InfraRed (OPIR) sensor data for critical areas such as Missile Warning, Missile Defense, Battlespace Awareness, and Technical Intelligence. The ideal candidate will excel in solving complex engineering challenges in support of our national security objectives.

Prosidian Consulting is seeking a highly skilled IT Service Management (ITSM) Security Engineer III to join our dynamic team in Boulder, Colorado. In this pivotal role, you will be responsible for enhancing the security posture of our ITSM processes and systems, ensuring that they are robust against evolving threats. You will collaborate closely with cross-functional teams to design, implement, and manage security measures that protect our valuable data and comply with industry standards.

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.

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.

Join Atom Computing as a Senior Infrastructure Engineer and play a pivotal role in designing and implementing cutting-edge infrastructure solutions. You will lead initiatives that drive efficiency, scalability, and innovation within our organization.

Anduril Industries develops advanced defense technology for the U.S. and allied military forces. The company combines technical expertise with agile practices to deliver military systems quickly. Its Lattice OS platform uses AI to transform large data sets into real-time 3D command and control, supporting autonomy, computer vision, sensor fusion, and networking. The team aims to provide new military capabilities in months, not years. The Test and Analysis team at Anduril makes sure products can handle demanding air, land, sea, and space conditions. Team members collaborate with product groups throughout the lifecycle, from design and development to validation. Their work covers requirement analysis, environmental and electromagnetic interference testing, reliability assessment, and support for sustainable manufacturing. Analytical modeling, including structural-thermal-optical performance (STOP) analysis, helps identify ways to improve durability and deliver solutions efficiently. Role overview The Senior Thermal Engineer leads thermal analysis and design for hardware development programs in Boulder, Colorado. This role spans the full product cycle, from initial concept to production, with a focus on developing and validating models that enable rapid prototyping of advanced systems. What you will do Perform first-order thermal assessments to guide early design decisions Build detailed analytical models to refine prototype hardware Produce thermal predictions that inform and support hardware testing This position involves close collaboration with multidisciplinary teams and hands-on involvement in both analysis and testing phases. Location Boulder, Colorado, United States

Join Prosidian Consulting as an ITSM Security Analyst in Boulder, CO, where you will play a pivotal role in ensuring the security and integrity of IT service management processes. Your expertise will help organizations optimize their IT operations while maintaining compliance with security standards. If you are passionate about IT security and eager to contribute to innovative projects, we want to hear from you!

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