Role Description We are seeking a Communications Software Engineer with hands-on 5G RAN and/or radio SW development experience. The ideal candidate will have a strong background in ORAN gNB and Radio SW systems. This role will focus on adapting the 5G OpenAirInterface stack to support military Low Probability of Intercept (LPI) and Low Probability of Detection (LPD) objectives by employing DSSS and Frequency Hopping techniques on top of 5G architecture. This position reports to the Chief Technology & Strategy Office and involves close collaboration with customers and engineering teams to deliver innovative solutions for RF Tactical & Naval Military Solutions, as well as strategic border protection applications. Key Responsibilities - Support SW architecture design for an end-to-end 5G communications system based on Open AirInterface (OAI) open-source SW stack - Deliver software requirements, documents and integration and test plans - Act as software engineer and implement the software needed changes into the 5G SW stack - Adapt and extend the 5G OpenAirInterface stack to optimize military LPI/LPD requirements, specifically through the implementation of DSSS and Frequency Hopping techniques - Support integration and testing of communication systems in lab and field settings - Interface with hardware and system teams to drive system-level performance - Author technical documentation and support generation of system specifications and SBIR deliverables Qualifications - Bachelor’s degree in Computer Science, Computer Engineering, or related field - 5+ years of design experience in 5G RAN/Radio software development with deep knowledge of 5G and/or ORAN systems and 5G waveforms - 10+ years of experience coding and reverse engineering with C/C++ - 7+ years of debugging real time communication SW - Experience in writing 5G systems and SW specifications - U.S. Citizenship and eligible for DoD security clearance Additional Preferred Qualifications - Master’s degree in Communications, Computer Science / Engineering, or Wireless Systems - Experience with 5G core deployment using containerized or virtualized environments (Docker, Kubernetes) - Experience in utilizing AI in code writing and reviews - Hands-on experience with the 5G OpenAirInterface (OAI) stack, including gNB, and UE integration - Experience in L1 and L2 integration of 5G RAN or SATCOM communications systems - Familiarity with adapting 5G/OAI for military applications, including LPI/LPD techniques - Experience of User Equipment 5G software - Practical knowledge of DSSS and Frequency Hopping as applied to secure, resilient wireless communications - Experience with Terrestrial and Non-Terrestrial (NTN) communications systems - Understanding of 3GPP specifications (Rel-15 to Rel-18) Position Type/Expected Hours of Work This is a full-time position. Work Authorization/Security Clearance Must be eligible to work in the US. Must hold active secret clearance. AAP/EEO Statement Fairwinds Technologies, LLC is an Equal Opportunity Employer – M/F/Veteran/Disability/Sexual Orientation/Gender Identity Compensation - Salary At Fairwinds, we consider many factors when it comes to compensation, including the scope of the position as well as your background and experience. Base pay may vary depending on job-related knowledge, skills, location and experience.

Coupa makes margins multiply through its community-generated AI and industry-leading total spend management platform for businesses large and small. Coupa AI is informed by trillions of dollars of direct and indirect spend data across a global network of 10M+ buyers and suppliers. We empower you with the ability to predict, prescribe, and automate smarter, more profitable business decisions to improve operating margins. Why join Coupa? 🔹 Pioneering Technology: At Coupa, we're at the forefront of innovation, leveraging the latest technology to empower our customers with greater efficiency and visibility in their spend. 🔹 Collaborative Culture: We value collaboration and teamwork, and our culture is driven by transparency, openness, and a shared commitment to excellence. 🔹 Global Impact: Join a company where your work has a global, measurable impact on our clients, the business, and each other. Learn more on Life at Coupa blog and hear from our employees about their experiences working at Coupa. The Impact of a Software Engineering at Coupa: At a technical level, your development team will offer application and infrastructure support for customer environments. You’ll have the opportunity to collaborate across software products with engineers all over the company and the globe to plan and deploy product releases. What You'll Do: As a Software Engineer, you will help scale our Coupa platforms as we expand and find the right balance between the power of a consolidated codebase and the flexibility of microservices. You will collaborate with the Product and Development teams to build new features and find creative, elegant solutions to complex problems. As a Software Engineer, you will offer advice and review others' designs and implementations, and mentor others, breaking down information systematically. What You Will Bring to Coupa: - 2+ years of software development experience with Ruby on Rails - Strong object-oriented design and analysis skills - Experience building REST APIs and microservices - Good understanding of common design patterns - Experience with React.js (or similar JavaScript framework) and CSS - MySQL and general database knowledge, including performance and optimization - Experience with technical mentoring or teaching others #LI-TC1 #LI-Remote Coupa complies with relevant laws and regulations regarding equal opportunity and offers a welcoming and inclusive work environment. Decisions related to hiring, compensation, training, or evaluating performance are made fairly, and we provide equal employment opportunities to all qualified candidates and employees. Please be advised that inquiries or resumes from recruiters will not be accepted. By submitting your application, you acknowledge that you have read Coupa’s Privacy Policy and understand that Coupa receives/collects your application, including your personal data, for the purposes of managing Coupa's ongoing recruitment and placement activities, including for employment purposes in the event of a successful application and for notification of future job opportunities if you did not succeed the first time. You will find more details about how your application is processed, the purposes of processing, and how long we retain your application in our Privacy Policy.

About Netchex We’re Netchex - the fastest growing Payroll, Human Resource, Time and Attendance, and Benefits services company in America. We give HR professionals time to work on what drives their businesses forward by providing efficient tools and quality personal service. We tackle big challenges, take pride in our work, and learn early and often so we can delight our clients with solutions that solve their problems every day. Job Overview As a Backend Engineer, you will take ownership of designing and delivering scalable backend systems that power our platform. You’ll work closely with cross-functional teams to build high-quality services using Java, while driving clarity in technical and architectural decisions. This role is ideal for engineers who enjoy solving complex problems and building performant systems. About Netchex Netchex is a leading HR, payroll, and workforce management platform trusted by thousands of businesses across the U.S. Our mission is simple: make HR and payroll easier through intuitive, intelligent software. We're a remote‑first team of builders, problem‑solvers, and people‑focused innovators — and we're just getting started. Summary of the Role As a Backend Engineer, you will take ownership of designing and delivering scalable backend systems that power our platform. You’ll work closely with cross-functional teams to build high-quality services using Java, while driving clarity in technical and architectural decisions. This role is ideal for engineers who enjoy solving complex problems and building performant systems. Key Responsibilities: - Take ownership of designing, developing, and delivering complex backend features and systems with minimal guidance. - Translate high-level requirements into robust Low-Level Designs (LLD) and drive clarity in technical decisions across modules. - Lead development of critical features end-to-end—from design and coding to deployment, observability, and monitoring. - Build, improve, and maintain high-quality, scalable, and performant services using Java and Spring (or equivalent frameworks). - Collaborate with Product Managers, Front-end Engineers, ML Engineers, and QA Engineers to plan, align, and deliver cross-functional initiatives. - Mentor junior engineers (SDE1) through code reviews, design sessions, and technical guidance. - Proactively identify architectural gaps, propose technical improvements, and drive medium- to large-scale refactoring initiatives. - Maintain strong engineering hygiene through documentation, design reviews, coding standards, and automation. - Drive a culture of quality by ensuring high test coverage, robust automation, and reliable deployments. - Participate in on-call rotations as a dependable owner of production services—diagnosing, resolving, and preventing incidents. What We're Looking For: - 3+ years of experience building and scaling backend systems in Java, Spring, or similar ecosystems. - Deep understanding of object-oriented design, system design, data structures, algorithms, and complexity analysis. - Strong experience designing and implementing RESTful APIs, backend microservices, and distributed systems. - Hands-on experience with databases(SQL + NoSQL), including schema design, query optimization, and debugging performance issues. - Working knowledge of caching, message queues, async processing, and distributed system fundamentals. - Ability to break down ambiguous problems, define architecture, and execute with significant autonomy. - Experience building highly available and scalable systems, with a strong understanding of performance tuning and optimization. - Ability to mentor team members, influence decisions, and elevate the team's technical bar. - Excellent debugging skills and comfort working with observability tools. - Strong communication and collaboration skills. - Experience with fintech or payment systems, such as payment rails, financial APIs, reconciliation workflows, or ledger-like data models is a plus. - Experience with .NET-based systems or services is a plus Here's What Defines Us - Win Together — One team. One mission. No silos. - Deliver Results — No excuses. Just results. - Raise the Bar — Better today. Stronger tomorrow. - Decide and Drive — We don't wait for perfect. We move. - Bring the Energy — Positivity fuels performance. Equal Opportunity Employer Netchex is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status, or any other characteristic protected by law.

Primary Responsibilities: - Develop, test, and maintain web applications calling REST APIs with JavaScript Frameworks like Vue 2-based SPA with modern tooling, UI libraries, testing/linting setups - Design, develop, and unit test applications in accordance with established standards - Participate in peer-reviews of solution designs and related code - Analyze and resolve technical and application issues and defects - Serve as Level 2 support and handling support activities - Adhere to high-quality development principles - Actively learn new technologies - Perform various ad hoc responsibilities - Participate in daily stand-ups, backlog reviews, sprint planning meetings and other agile meetings Required Skill and Qualifications: - At least 2 years of experience with front-end development using JavaScript frameworks (Vue), HTML5/CSS/SCSS/SASS. - Experience consuming REST APIs (JSON), including auth, error handling, and async data flows - Experience with backend development with Java - Experience with vibe coding with MS Copilot or other AI assistance - Experience with SQL (MSSQL, Oracle) - Experience with Git, Bitbucket, Jira, Jenkins - Full SDLC experience - Exemplary written and verbal communication skills Desired Skills and Qualifications: - Familiarity with the public and/or higher education sector (highly desirable).