Senior Principal Software Engineer – 5G Core Networks
About The Position
Applied Signal Technology (AST) is seeking a Senior Principal Software Engineer with specialization in protocol development within 5G Core Networks who strives for excellence and has a passion to be part of a team that strengthens our nation and improves the security of our world. AST provides trusted strategic and tactical SIGINT solutions that secure the interests of the U.S. and its partners. AST’s work in areas such as high-capacity broadband communications, signal processing and analysis, tactical SIGINT, and wireless communications continually challenge our extraordinary engineers to resolve problems and make the world a safer place. AST’s work environment is passionate, highly collaborative and provides engineers with the freedom to strengthen and expand their skills, explore new and creative ideas, and work closely with our nation’s finest service members all while embracing integrity, innovation, and work-life balance. This is an ONSITE position at the San Jose, CA location.
Requirements
- Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and a minimum of 10 years of prior relevant experience
- Aggregate of 7 years software development experience in one or more of the following areas:
- Developing 3GPP network functions, network interfaces, and/or service-based interfaces, such as: User Plane Function (UPF), Access and Mobility Management Function (AMF), and/or Session Management Function (SMF), N4 and/or N11 network interfaces, and/or Namf, Nsmf, and/or Nupf services.
- Developing protocols such as NAS, PFCP, GTP-U, and/or HTTP/2.
- Reverse engineering telecommunications protocols.
- Troubleshooting distributed systems and control-plane signaling paths.
- Using 5G core network control-plane probes.
- Developing service-based microservices with REST-like APIs.
- Demonstrated expertise developing Linux-based software systems utilizing modern C++, Python, or equivalent environments to architect, implement, and validate complex telecommunications processing solutions.
- Ability to obtain and maintain a U.S. government issued Top Secret SCI (TS/SCI) security clearance with polygraph after start.
- U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.
Nice To Haves
- Existing U.S. government issued TS/SCI security clearance with polygraph or current SSBI.
- Knowledge of AMF, SMF, UPF, UDM, PCF, AUSF, NRF behavior, interactions, and call flows.
- Experience developing 5G core network control-plane probes for monitoring network traffic, extracting signaling and user-plane information, decoding 3GPP protocols, and/or traffic replay.
- Experience with observability frameworks (OpenTelemetry, Prometheus, Grafana)
- Familiarity with 4G EPC (MME, SGW, PGW, HSS).
- Familiarity with network virtualization and/or containerization technologies (KVM, VMware, OpenStack, AWS, Kubernetes, Helm, Docker).
- Experience developing with Go or Rust.
Responsibilities
- Apply your 5G Core Network software development experience to advance our next generation mobile telecommunication processing solutions by: Collaborating with technical leaders to further product visions and roadmaps and developing innovative software solutions,
- Collaborating with customers to elicit requirements and CONOPS, and
- Performing technical research, developing technical documentation, presentations, and/or leading concept demonstrations.
- Travel up to 15% travel time to other AST sites and customer sites to support customers meetings and/or demonstrations, system deployments.
Benefits
- Medical, dental, and vision insurance
- Three weeks of vacation for newly hired employees
- Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
- Tuition reimbursement program
- Student Loan Repayment Program
- Life insurance and disability coverage
- Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
- Birth, adoption, parental leave benefits
- Ovia Health, fertility, and family planning
- Adoption Assistance
- Autism Benefit
- Employee Assistance Plan, including up to 10 free counseling sessions
- Healthy You Incentives, wellness rewards program
- Doctor on Demand, virtual doctor visits
- Bright Horizons, child and elder care services
- Teladoc Medical Experts, second opinion program
- Eligible for relocation
- Annual short-term and/or long-term incentive compensation programs
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What This Job Offers
Job Type
Full-time
Career Level
Senior
