Senior Software Engineer

Systems Technology Research (STR) is seeking a Principal Software Reverse Engineer who is passionate about researching and analyzing vulnerabilities in cyber-physical systems. This role is part of a multidisciplinary team of skilled researchers and engineers committed to creating innovative technologies that significantly impact national security. You'll have the opportunity to work at the intersection of computer systems and real-world applications, where your unique skills and perspectives will contribute to delivering cutting-edge solutions for our clients.Important: All work must be performed onsite, and an Active Top Secret (TS) Clearance is required.Key Responsibilities:Conduct reverse engineering on complex software or firmware, encompassing a range of targets from standard Windows/Linux binaries to embedded firmware on unconventional computer architectures and operating systems.Develop and utilize automated reverse engineering and binary analysis tools to characterize protocols, interfaces, and functionalities of target systems.Innovate and implement advanced cybersecurity solutions.Lead cross-functional teams to address challenging problems across various technologies, creating groundbreaking cybersecurity strategies.Engage in vulnerability weaponization, exploit development, payload creation, and exploit mitigation on diverse complex targets.Conduct technical marketing to both existing and prospective customers.Contribute to technical proposal development through idea generation, writing, reviewing, and editing.Document, demonstrate, and present research findings.Address real-world challenges that influence national security.

Join Twosix Technologies as a Senior Software Reverse Engineer and take on the exciting challenge of analyzing complex software systems. You will be responsible for dissecting software applications, understanding their architecture, and providing insights that can enhance security and functionality.In this role, you will leverage your expertise in reverse engineering to assist in vulnerability assessments, malware analysis, and the development of security solutions. Collaborate with cross-functional teams to design and implement robust software strategies that address real-world challenges.

At Two Six Technologies, we engineer, implement, and deploy groundbreaking products designed to tackle some of the world's most intricate challenges. Through exceptional teamwork and steadfast trust, we continually redefine the limits of innovation, empowering our team members and assisting our clients in creating a more secure global future.Overview of Opportunity Become a part of the Trusted Electronics & Effects division at Two Six Technologies, where we are at the forefront of software and firmware reverse engineering, dedicated to identifying vulnerabilities in wireless and embedded systems. As a member of our distinguished team of security researchers, you will collaborate closely with CNO developers and hardware engineers, engaging in advanced vulnerability research on complex, real-world applications.Our governmental clients depend on us to deliver critical security solutions, and we are in search of a Senior Software Reverse Engineer who is proficient in reverse engineering embedded systems, pinpointing security vulnerabilities, and crafting innovative proof-of-concept exploits. If you are passionate about wireless security, embedded firmware analysis, and contributing to national security, we would love to have you on our team.Your Responsibilities:Conduct reverse engineering of wireless and embedded systems, identifying vulnerabilities and evaluating their security implications.Create proof-of-concept exploits for identified vulnerabilities while adhering to DevOps best practices to maintain organized and manageable code bases.Examine firmware, software protections, and wireless protocols to reveal security weaknesses.Utilize and develop custom tools for analyzing and manipulating software/firmware binaries.Work closely with CNO developers, vulnerability researchers, and hardware engineers in a dynamic, small-team environment.Tackle complex technical challenges without predefined solutions.

Join Two Six Technologies as a Lead Software Reverse Engineer and play a pivotal role in analyzing and enhancing software systems. You will lead innovative projects focused on software vulnerability analysis, reverse engineering, and developing effective security solutions. Collaborate with a talented team of engineers and contribute to cutting-edge technology that protects vital systems and data.

Join Systems Technology Research (STR) as a Software Reverse Engineer, where your expertise in analyzing vulnerabilities in cyber-physical systems will help shape the future of cybersecurity. This role requires onsite collaboration to tackle complex challenges and deliver innovative solutions.

At Two Six Technologies, we are dedicated to developing, deploying, and implementing cutting-edge products that address some of the world's most intricate challenges. Through exceptional collaboration and steadfast trust, we strive to redefine the limits of innovation to empower our team and assist our clients in creating a safer global environment.We are currently on the lookout for a skilled Vulnerability Researcher and Reverse Engineer (VR/RE) to join our dynamic team. This technical role is pivotal in developing advanced capabilities based on in-depth program analysis, binary patching, and the identification of security vulnerabilities within systems.Your primary responsibilities will involve analyzing systems to understand their functionalities and devising innovative technologies to tackle complex cybersecurity challenges. You will thrive in a team of dedicated vulnerability researchers, exploit developers, reverse engineers, and testers. This role promises to be challenging, as the landscape of cybersecurity is ever-evolving; therefore, you should be ready to engage in a wide array of projects and continuously expand your expertise.

Role Overview Systems Technology Research is looking for a Senior Reverse Engineer in Arlington, VA. This position focuses on analyzing and deconstructing both software and hardware systems. The goal: uncover vulnerabilities and help design stronger security measures. What You Will Do Examine software and hardware to understand their structure and behavior Identify security weaknesses and potential exploits Contribute to the design of solutions that improve system security Location This role is based in Arlington, VA.

At Two Six Technologies, we innovate, develop, and deploy cutting-edge products to address some of the world's most complex challenges. Through exceptional collaboration and steadfast trust, we redefine the limits of what's achievable, empowering our team and assisting our clients in fostering a safer global environment.Opportunity OverviewBecome part of the Trusted Electronics & Effects business unit at Two Six Technologies, located in Arlington, Virginia. Here, you will engage in pioneering research focused on advanced embedded systems and architectures. By working with technologies such as processor modules, digital boards, and high-speed signals, you will dismantle physical hardware, extract firmware, identify vulnerabilities, and advance the field of embedded system security. Collaborate closely with elite hardware engineers and security researchers to tackle some of the most formidable challenges in the industry.Our expanding base of government clients relies on our ability to deliver state-of-the-art security solutions. We are in search of a talented Hardware Reverse Engineer to propel our mission forward. If you're driven by the challenge of solving intricate problems and making a significant difference in national security, we want you on our team.

At Two Six Technologies, we are dedicated to designing, developing, and implementing pioneering products that address the world’s most intricate challenges. Our commitment to collaboration and trust allows us to expand the horizons of innovation, empowering our team and assisting our clients in creating a safer global environment.Overview of OpportunityJoin the Embedded Systems division at Two Six Technologies, a collective of forward-thinking engineers and reverse engineers based in Arlington, Virginia. You will engage in groundbreaking research on advanced embedded systems and architectures. Your role will involve dissecting physical hardware, extracting firmware, identifying vulnerabilities, and advancing the frontiers of embedded system security. In collaboration with top-notch hardware engineers and security researchers, you will tackle some of the most challenging issues in the field.Our expanding clientele of government customers relies on us for cutting-edge security solutions. We are seeking a proficient Hardware Reverse Engineer to help propel our mission forward. If you are enthusiastic about solving complex problems and making a significant impact on national security, we invite you to join our dynamic team.

At Two Six Technologies, we are at the forefront of innovation, crafting, deploying, and implementing cutting-edge solutions to address some of the most intricate challenges the world faces today. With a commitment to unparalleled collaboration and steadfast trust, we redefine possibilities, empowering our team and enabling our clients to create a safer global environment.Opportunity Overview:We are currently in search of a talented Principal Software Engineer to join our dynamic team. This role involves working on multi-domain platforms that support essential national security functions utilizing the latest modern frameworks. You’ll be instrumental in resolving complex challenges related to large-scale data investigation and analysis, facilitating real-time collaboration, managing tasks and resources, and summarizing and visualizing high-dimensional data to help non-experts tackle sophisticated inquiries. The right candidate will possess a robust technical background, outstanding leadership abilities, and a fervor for delivering top-tier software that adheres to the highest quality standards.The role is hybrid, requiring the selected individual to be present in our Arlington, VA office up to three days a week.Key Responsibilities:Lead the comprehensive technical strategy for distributed systems, encompassing architecture and framework selection, implementation, and optimization, while mentoring engineers and enforcing engineering best practices.Collaborate with technical leadership to enhance developer ergonomics, software quality, and security while upholding engineering policies.Boost operational efficiency by refining processes, implementing scalable solutions, and proficiently managing expectations through effective change management.Present technical and programmatic designs, roadmaps, and achievements to both internal and external stakeholders.Design and construct complex platform architectures, including distributed or decentralized topologies, scalable and efficient data infrastructure, APIs, message queuing and event streaming, secure authentication and authorization, as well as containerization and orchestration.Oversee the development team to deliver capabilities and integrations aligned with business goals.Take an active role in recruiting and mentoring junior engineers, aligning project tasks with their career aspirations.

About Our Team: The Real-time Architectures, Integration, and Demonstration (RAID) Group specializes in the transition of cutting-edge algorithms from conceptual phases to real-time software applications. We provide expert knowledge in open architecture systems and facilitate the integration of advanced capabilities for experimentation, testing, and deployment. Your Role: As a Principal Software Engineer, you will spearhead technical teams developing sophisticated real-time software for advanced RF sensor systems. You will design software solutions that meet open architecture standards, oversee the transition of algorithms from conceptual stages to real-time execution, and provide mentorship to junior engineers. Key Responsibilities: Lead technical teams in the architecture, development, and deployment of real-time RF sensor software derived from various sources. Transform advanced algorithms from MATLAB/Python prototypes into optimized production-ready C/C++ implementations within open architecture frameworks. Enhance software performance for real-time, resource-constrained systems with stringent latency requirements. Design communication infrastructures and data flows for distributed processing systems. Oversee comprehensive open system integration efforts, including hardware-in-the-loop testing, ensuring seamless integration across distributed architectures, external systems, and hardware platforms. Conduct design and code reviews, perform technical risk assessments, and ensure software compliance with open architecture standards. Mentor and provide technical guidance to junior and mid-level engineers. Prepare technical reports, create briefings, and present findings to sponsors and senior management. Collaborate with customers, program managers, and stakeholders to establish technical requirements. Lead proposal development efforts, including defining technical approaches, estimating costs, and drafting white papers. Work closely with algorithm developers, systems engineers, RF hardware engineers, and integration teams across various programs. Stay abreast of emerging technologies and best practices in real-time software development. Support approximately 20% travel for customer meetings, integration events, and field demonstrations. Who You Are: Possess an active clearance at the Secret level with the ability to obtain and maintain a Top Secret security clearance, requiring U.S. citizenship as mandated by the U.S. government. Hold a BS, MS, or PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related discipline with a minimum of 5-10+ years of relevant experience.

About UltraViolet Cyber UltraViolet Cyber delivers unified security operations for organizations facing complex cyber threats. Founded by experienced security professionals, the company blends advanced technology with hands-on expertise to provide real-time solutions that connect red and blue team operations. Clients include Fortune 500 companies, federal agencies, and commercial organizations. Headquartered in McLean, Virginia, UltraViolet Cyber also operates in the U.S. and India, aiming to make advanced cybersecurity widely available. Role Overview: Principal Security Engineer (Zscaler SME) This Arlington, VA-based position focuses on supporting large federal clients as a Zscaler Subject Matter Expert. The Principal Security Engineer works closely with network and security teams to deliver reliable, efficient, and high-performing Zscaler deployments. What You Will Do Oversee deployment and operational support for the Zscaler product suite, including ZPA, ZIA, ZDX, and ZCC. Update documentation as network designs change to keep records accurate and useful. Collaborate with stakeholders to test systems and validate performance. Ensure application migrations align with security and performance requirements. Location Arlington, VA

Join Systems Technology Research as a Lead Software Engineer, where you will spearhead innovative software solutions that drive our mission forward. In this pivotal role, you will collaborate with cross-functional teams to design, develop, and implement cutting-edge software applications. Your expertise will help shape the future of our technology landscape, as you mentor junior engineers and ensure best practices are followed throughout the development lifecycle.

Quartermaster AI develops AI and robotics systems focused on ocean safety and sustainable management. The team creates distributed open-ocean platforms that allow vessels to sense, compute, and communicate, supporting maritime domain awareness in critical situations. Role overview The Principal Platform Systems Engineer - Test Automation Lead sets the foundation for reliable development across cloud infrastructure, edge computing, and hardware-in-the-loop (HIL) testing. Reporting to the Head of Platform, this role supports the hardware, machine learning, and robotics teams as they deploy in demanding maritime environments. Success in this position requires a systems generalist who is comfortable with AWS pipelines, lab automation, and embedded edge devices. What you will do Design and manage HIL and software-in-the-loop (SIL) test environments, automating lab workflows and hardware bring-up to ensure thorough regression testing. Develop and maintain deployment pipelines with custom release gating for embedded and edge platforms, including NVIDIA Jetson, to support reliable hardware-dependent software updates. Build internal tools and simulation or replay pipelines to accelerate and stabilize development cycles for robotics and ML teams. Implement observability across lab and edge deployments, and provide technical leadership on architecture, standards, and quality controls across teams. Requirements Minimum 10 years in systems or platform engineering, developer experience (DevEx), or embedded infrastructure, with a record of results in startup-like settings. Strong background in Linux systems engineering, networking, and troubleshooting production environments for containerized and reproducible systems. Direct experience with hardware interfaces such as UART, SPI, I2C, CAN, low-level device communication, and integrating lab instrumentation into automated test frameworks. Familiarity with NVIDIA Jetson, software-defined radio (SDR) or RF validation, or deploying AI/ML workloads at the edge in maritime or similarly challenging environments. Benefits Competitive salary and performance-based bonuses Health insurance and wellness programs 401k plan with company matching Generous paid time off and flexible hours Location: Arlington, VA

Join Our Dynamic Team:At Systems Technology Research (STR), our Analytics Division is at the forefront of developing cutting-edge technologies to tackle complex national security challenges through innovative analytics. We are a diverse team of dedicated professionals with backgrounds in engineering, computer science, mathematics, physics, and data science, committed to transforming creative concepts into robust solutions that enhance our clients' mission success.As part of our Collaborative Autonomy and Control (CAC) Group, you will play a pivotal role in developing software systems that address significant challenges in uncrewed system autonomy, multi-agent collaboration, resource management, and control. Utilizing your expertise in machine learning, algorithms, model-predictive control, and software engineering, you will create tools that facilitate tactical mission planning, autonomous reasoning, and more.Your Role:In your capacity as a Senior Software Engineer, you will collaborate with a cohesive team to design, develop, implement, and showcase advanced algorithms and software systems. You will provide technical leadership and mentorship across various programs throughout the software lifecycle, from initial prototypes to fully integrated systems. Your contributions will span a wide array of software tools and applications for mission planning systems, automated enterprise control processes, unmanned platforms, DevSecOps, and CI/CD pipelines. This position is based in Arlington, VA, but our flexible hybrid work model allows you to work remotely when not utilizing STR's facilities.

Join STR's Systems Development Division (SDD) as a Senior Software Engineer, where you'll play a pivotal role in devising sophisticated integrated systems that enhance national security. Your expertise in developing and testing C++ software for complex embedded radar systems, particularly in Air-to-Air applications, will be instrumental in driving strategic advancements. Collaborate on the entire solution lifecycle—conceptualization, architecture, implementation, and deployment—while leveraging innovative technologies to create unique systems that redefine capabilities in airborne and space RF sensors.

At Accenture Federal Services, our mission is to empower the U.S. federal government to strengthen and secure the nation while enhancing lives across the country. With a dedicated team of over 13,000 professionals, we leverage the limitless potential of technology and creativity to support clients across defense, national security, public safety, civilian sectors, and military health organizations. As part of our collaborative and supportive community, recognized as a Glassdoor Top 100 Best Place to Work, you will find opportunities to grow, learn, and thrive through practical experience, certifications, and industry training. Be a part of our journey to drive meaningful, lasting change that advances government missions! The Senior Custom Software Engineer (Platform Developer) plays a pivotal role in the containerization, automation, scripting, and Infrastructure-as-Code (IaC) development necessary for secure platform operations in government cloud environments. This position is responsible for designing, configuring, integrating, and maintaining management infrastructure services while ensuring system stability, compliance, and security adherence. The engineer will develop hardened machine images (e.g., Azure VMs), ensure STIG compliance, and create custom services for security inheritance across the environment. As a senior contributor, you will utilize your expert knowledge to lead significant technical projects, assess performance outcomes, and mentor junior technical staff.

Join our team at Systems Technology Research as a Lead Software Engineer. In this pivotal role, you will be responsible for leading a group of talented engineers to design, develop, and implement cutting-edge software solutions that meet our clients' needs. You will play a key role in shaping the technical direction of our projects and mentoring junior engineers.

At Two Six Technologies, we engineer, implement, and deploy pioneering solutions designed to tackle some of the most intricate challenges facing the globe today. Our commitment to exceptional collaboration and steadfast trust allows us to expand the limits of what is achievable, empowering our team and aiding our clients in forging a safer future worldwide.Opportunity OverviewTwo Six Technologies is on the lookout for a Lead CNO Developer to become part of our esteemed Trusted Electronics and Effects team, which is at the forefront of an advanced telecommunications research and cyber capability development initiative.This role offers a full-time, in-office opportunity located in Arlington, Virginia, where fostering close collaboration among reverse engineering, vulnerability research, and hardware teams is vital for mission success.The program has been engaged in profound technical investigations into telecommunications access mechanisms within specified systems, uncovering innovative strategies for system access beyond conventional interactions. The team is now dedicated to utilizing that research to conduct advanced reverse engineering and vulnerability research, alongside the development of operational tools and capabilities for deployment in complex, real-world scenarios.As the Lead CNO Developer, you will take on the role of the technical lead for a small yet highly skilled team of developers and researchers. Your responsibilities will include providing hands-on technical guidance, prioritizing tasks, ensuring adherence to high technical standards, and engaging directly with mission partners and stakeholders. You will be central to transforming research findings into scalable, mission-ready cyber capabilities.