Wireless Test Engineer – 4G/5G PHY & Stack

Are you ready to revolutionize connectivity from space and make it universally accessible, secure, and actionable? Look no further!E-Space is at the forefront of bridging Earth and space, enabling hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are constructing an advanced low Earth orbit (LEO) space system designed to transform the traditional satellite and terrestrial IoT systems regarding design, economics, manufacturing, and service delivery.Our mission is driven by intention, curiosity, and a steadfast commitment to innovate space-based communications. We aim to deliver actionable intelligence that will expand global economies, safeguard space and our planet, and enrich the overall quality of life.We are currently seeking a Wireless Test Engineer to join our team and validate next-generation 4G/5G communication systems that will empower our constellation and ground infrastructure.In this role, you will take ownership of the test environment and strategy for 3GPP-based wireless features, focusing on PHY and protocol stack verification. You will be responsible for developing automated test suites, analyzing logs and pcap traces, and collaborating closely with software, systems, and RF engineers to resolve issues and ensure high-reliability deployments for our space and ground products.This position is based in our Arlington, TX office.

Are you ready to revolutionize connectivity through space, making it universally accessible, secure, and actionable? Join us at E-Space!At E-Space, we are pioneering the integration of Earth and space to facilitate massive deployments of Internet of Things (IoT) solutions and services. We are actively developing a cutting-edge low Earth orbit (LEO) space system that will transform the design, economics, manufacturing, and service delivery paradigms of traditional satellite and terrestrial IoT systems.Our team is intentional, curious, and wholly dedicated to innovating space-based communications, delivering actionable intelligence that will stimulate global economies, safeguard space and our planet, and elevate our collective quality of life.As a Senior Wireless Communication Systems Engineer, you will take charge of modeling, simulating, and designing the physical layer modem within a LEO satellite constellation communication network. Your expertise will be crucial in guaranteeing reliable and efficient data transmission in sophisticated satellite communication systems. You will utilize your knowledge in system analysis and modem design, including time/frequency unit analysis, FEC design, modulation, and demodulation processes in advanced wireless communication frameworks. This role reports to the Sr. Director of Product and System Integration, Silicon. You will collaborate closely with systems, software, hardware, and testing teams responsible for delivering the communications payload. This position is located in our Arlington, TX office.

Senior Full Stack EngineerAt Obviant, we are revolutionizing the defense sector by developing a comprehensive data source and advanced AI tools for defense acquisition. In a world where decision-makers grapple with outdated processes and fragmented data, we stand out by seamlessly integrating information from thousands of structured and unstructured sources. Our mission is to deliver a clear, cohesive overview of budgets, programs, and the organizations behind them. Whether assisting a company with go-to-market strategies or empowering program managers with vital capabilities, we are dedicated to providing intelligence that drives effective execution. With rapid growth fueled by leading investors and seasoned veterans from the Department of Defense and national security, we are committed to making a difference.We believe in the importance of public sector missions. If you share this belief, we invite you to join our team.Your RoleAs a Senior Full Stack Engineer, you will play a pivotal role in developing the next generation of tools that transform government technology. We prioritize speed and efficiency, and you will be integral to crafting elegant solutions for complex challenges.Key ResponsibilitiesLead feature development from inception to completion, leveraging your insights to shape our design and implementation processes.Engage with the full technical spectrum—from developing robust APIs and type systems to creating user-friendly frontends and component libraries.Collaborate with users to understand their workflows and design solutions that enhance their productivity.Design and implement data visualization tools that simplify complex information.Innovate AI/ML solutions in an industry that has yet to be fully explored by modern technology.QualificationsMinimum of 5 years of full stack development experience, creating solutions that resonate with users.A strong passion for understanding user needs and transforming challenges into effective solutions.Proven track record of owning features from concept to successful implementation.Experience in government, govtech, or defense sectors is a plus, but not mandatory.A deep-seated passion for defense and its associated missions.Comfortable working in the dynamic environment of a fast-growing startup.Ability to obtain and maintain a TS/SCI security clearance.

Role Overview:Join Quartermaster AI as an RF Test and Calibration Engineer, where you will leverage your extensive technical expertise and hands-on experience with advanced radio systems. Your role will focus on enhancing our calibration capabilities for antennas and radio systems, ensuring they meet the highest performance standards.You will be responsible for establishing a robust testing infrastructure at our headquarters and remote locations, and for integrating design-for-test requirements into our hardware development processes. Your insights into production RF test labs will be invaluable as you determine necessary resources, costs, and potential challenges at scale.

Join Stand Together as a Lead Full Stack Software Engineer, where you will play a pivotal role in developing innovative solutions that drive our mission forward. You will collaborate with cross-functional teams to design, implement, and maintain scalable applications that enhance user experiences. Your expertise in both front-end and back-end technologies will allow you to lead projects from conception to deployment.

Join Systems Technology Research as a Senior Software Engineer specializing in integration and testing. In this pivotal role, you will work collaboratively with cross-functional teams to design, implement, and validate complex software solutions that meet our clients' needs. Your expertise will drive the development of robust integration frameworks and testing strategies, ensuring quality and performance across our software products.

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 Systems Technology Research as a Software Test Lead, where you will spearhead the testing efforts for cutting-edge software solutions. You will collaborate with development teams to ensure quality and performance standards are met, while also mentoring junior testers and contributing to the continuous improvement of testing processes.

At Two Six Technologies, we are dedicated to creating, deploying, and implementing cutting-edge products that address some of the most intricate challenges facing our world today. Through exceptional collaboration and steadfast trust, we explore the limits of possibility, empowering our team and aiding our clients in fostering a safer global future.Opportunity OverviewWe are on the lookout for a Lead Full Stack Developer to join our dynamic team. Our group consists of highly intellectual individuals who are enthusiastic about developing reverse engineering tools, system architectures, providing technical leadership, and executing complex software implementations. We are expanding and seek a candidate with a robust full-stack background, capable of translating program requirements into actionable tasks and guiding technical teams through the implementation and scaling processes.This position is primarily in-person at our Arlington, VA office, with plans to transition to our Herndon, VA lab facility in the future. Candidates must be open to commuting to both locations.If you are proficient in modern frontend frameworks, Python, and cloud-based architectures, we would love to hear from you!Responsibilities:Act as a technical lead, connecting high-level visionary goals with tactical implementations for critical national security research programs.Assist the Principal Investigator by breaking down complex deliverables into manageable tasks and overseeing the full stack development process from conception to deployment.Lead technical implementation teams entirely in-office, focusing on hands-on lab operations in Arlington with occasional travel to Herndon.Ensure successful completion of program deliverables through sound technical judgment and effective leadership of engineering personnel.

Join our dynamic team at docme360 as a Full Stack Developer! In this pivotal role, you will leverage your expertise in both front-end and back-end technologies to create innovative solutions that enhance our platform. You will work collaboratively in a remote environment, bringing your creativity and technical skills to deliver exceptional user experiences.

X-PHY is at the forefront of cybersecurity innovation, providing advanced solutions designed to safeguard businesses against ever-evolving cyber threats. As we continue our growth trajectory, we are on the lookout for a dynamic Senior Channel Development Manager who will spearhead strategic initiatives within our partner ecosystem. This pivotal role is charged with the development, execution, and scaling of impactful channel programs that drive revenue growth, boost partner engagement, and strengthen X-PHY's status as a leader in the marketplace.At X-PHY, we’re not just creating products; we’re shaping the future of cybersecurity. Our mission is to redefine industry benchmarks, challenge the limits, and deliver transformative solutions that shield the digital landscape.Joining our team means embarking on an entrepreneurial journey with us. Here, you won’t just work for a company; you’ll evolve alongside it.We are looking for visionaries who think beyond the conventional, strategists who question the norm, and proactive doers who execute with passion and precision. If you’re eager to influence the future of cybersecurity, we want you to be part of our team.

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.

Join Stand Together as a Quality Assurance Engineer, where you will play a pivotal role in ensuring the excellence of our software products. You will collaborate with cross-functional teams to design and implement testing protocols, identify defects, and guarantee that our solutions meet the highest standards of quality. Your expertise will directly contribute to the seamless experience of our users.In this dynamic position, you will utilize your technical skills to automate testing processes and improve our development workflow. Engage in a culture of continuous improvement, where your insights and creativity will be valued as we strive to innovate and enhance our software offerings.

At Accenture Federal Services, our paramount mission is to empower the U.S. federal government to enhance national resilience and security while improving the quality of life for its citizens. Our diverse team of over 13,000 professionals is driven by a common purpose: to unlock the vast potential of technology and innovation for clients in defense, national security, public safety, civilian, and military health sectors. As part of our prestigious organization, recognized as a Glassdoor Top 100 Best Place to Work, you will be immersed in a supportive and collaborative environment that fosters personal growth and professional development through hands-on experience, certifications, and industry training. Join us in making a meaningful impact that advances governmental missions and initiatives! The work: We are on the lookout for an enthusiastic Full Stack Developer with exceptional technical, logical, and interpersonal skills to join our high-performing software development team. In this role, you will design and implement sophisticated software solutions to meet the evolving demands of our clients and stakeholders. You will become a trusted resource for advanced application development tasks, encompassing front-end, mid-tier, and back-end development using SQL Server, web applications, function applications, and other Microsoft technologies. You will collaborate directly with subject matter experts to translate business requirements into complex technical solutions, working alongside developers, operational staff, technical project managers, test engineers, and cloud engineers. Your role will involve creating automated, efficient, and streamlined processes utilizing diverse data sources to fulfill business objectives. You will explore innovative Microsoft technologies to prototype, design, and deliver optimal and maintainable code, while also supporting database design and deployment activities.Key Responsibilities:Develop solutions using .NET, C#, React, NodeJS, Javascript, Azure Services, web apps, and function apps.Conduct requirements gathering and research to derive insightful conclusions and solutions that address user needs.Field requests from stakeholders, clarifying requirements, and providing data solutions that meet their needs.Assist in documenting current processes and developing documentation for new processes along with other methods of knowledge sharing.

At IntraFi, we don’t just innovate; we empower financial institutions to thrive. Our comprehensive services enable banks to provide essential financial access to small businesses and consumers nationwide. With a robust network of over 3,000 financial institutions, we support the pillars of our economy, facilitating funding for affordable housing, family farms, and enterprises of all sizes. Our commitment to fostering local lending strengthens our financial system, and our dedicated team plays a crucial role in this mission. This greater purpose is what attracts talent to IntraFi and keeps them engaged.As the leading provider of deposit allocation services in the nation and the pioneers of reciprocal deposits, IntraFi has spent over 20 years developing innovative solutions that help financial institutions grow, manage liquidity, and serve their communities. Our influence spans across a diverse range of institutions—from local community banks to large financial organizations—allowing us to achieve ambitious business growth objectives while bolstering the broader financial system. Consistently lauded by publications such as American Banker, Washington Post, and Fortune as one of the premier workplaces, we pride ourselves on fostering a collaborative and flexible environment where innovation flourishes. Join our team and contribute to making a meaningful impact on the financial industry and the future of financial services.

Join Ramboll as a Resident Engineer and take the first step in your engineering career. In this entry-level position, you will work closely with a team of experienced professionals to deliver innovative engineering solutions. You will gain hands-on experience in project execution, working on infrastructure projects that contribute to sustainable development.

Join our dynamic team as a Structural and Blast Engineer, where you will leverage your expertise in structural and blast engineering to support the design and construction of critical facilities for the Office of Overseas Buildings Operations (OBO). You will collaborate with project managers, architects, and contractors to deliver high-quality engineering solutions while managing risks associated with the global diplomatic portfolio.Collaborate closely with the assigned design manager at OBO to ensure that precise and timely technical information is provided to OBO leadership for specific engineering construction projects.Critically evaluate and provide feedback on drawings, calculations, and specifications related to structural and/or blast engineering, including design proposals from various federal agencies that may affect DOS facilities. Align review comments with contract architects and engineers.Act as a primary resource for structural and/or blast engineering design on specific projects, offering comprehensive advice and assistance during the design phase. Engage with architects and contract engineers to address established Department of State (DOS) design standards and tackle design challenges posed by natural hazard risks and local conditions.Deliver a wide range of expert structural and/or blast engineering guidance, including: (a) initiation and review of site assessments for new or existing buildings; (b) review of submittals and requests for information (RFIs) during construction; (c) participation in project planning phases; (d) evaluation of structural and/or blast engineering aspects in maintenance and repair proposals; (e) involvement in scope definition, design, and review of OBO's proposed projects, including new constructions and renovations; (f) assessment of structural and/or blast engineering considerations for buildings being acquired or leased by OBO to ensure compliance with OBO standards; and (g) represent OBO in technical structural and/or blast engineering discussions on interagency committees.Travel to domestic and international sites as necessary to fulfill job responsibilities.Provide consultancy to management on buildings and sites affected by natural hazards, explosions, and other significant incidents.

Join our dynamic team at Ramboll as a Resident Engineer - Electrical. In this pivotal role, you will be responsible for overseeing electrical engineering projects, ensuring adherence to quality standards, and collaborating with multidisciplinary teams. Your expertise will be instrumental in driving efficiency and innovation within our projects.

Join Ramboll as a Resident Engineer and embark on an exciting career path where you will play a pivotal role in enhancing project delivery and engineering excellence. You will be responsible for overseeing engineering practices, ensuring projects are executed efficiently and in accordance with industry standards. This full-time position is ideal for recent graduates or individuals looking to kickstart their career in engineering.

Lead the Future of Defense TechnologyLocation: Arlington, VA – Employment Type: Full-TimeAs the defense sector rapidly evolves, the challenge of managing and analyzing vast amounts of data remains critical. At Obviant, we are dedicated to transforming defense acquisition with a comprehensive data source and innovative AI tools. Our mission is to consolidate thousands of data points—both structured and unstructured—to provide actionable insights into budgets, organizational capabilities, and more. Whether assisting companies with go-to-market strategies or aiding program managers in development, we empower all stakeholders with the intelligence required for effective execution. Backed by prominent investors and national security experts, we are on an exciting trajectory of growth.If you share our commitment to impactful public sector missions, we invite you to join our dynamic team.Your RoleWe are looking for a strategic Vice President of Engineering to guide, inspire, and scale a high-performing engineering team dedicated to developing next-generation defense technologies. This role requires a balance of leadership, technical insight, and project execution to empower our engineers to excel and align their work with our overarching company and product strategies.You will collaborate closely with engineering, product management, and design teams to establish clear direction, cultivate momentum, and ensure our solutions deliver the reliability, performance, and clarity essential for mission-critical operations. This position calls for a leader who is technically proficient, deeply cares for their team, and favors proactive engagement.Key ResponsibilitiesLeadership & Team DevelopmentRecruit, onboard, and cultivate top-tier engineering talent.Offer guidance, mentorship, and constructive feedback to foster career growth.Nurture a culture of accountability, continuous learning, transparency, and psychological safety.Enhance team dynamics through effective practices, retrospectives, and performance evaluations.Encourage engineers to take ownership, drive results, and develop their skills.Technical Leadership & Project DeliveryCollaborate with senior engineers and architects to determine technical vision and long-term strategy.Ensure alignment of engineering efforts with product development and organizational goals.