Senior Wireless Core Engineer / Full Stack Expert

MetTel is a global communications solutions provider with the most complete suite of fully managed services that focus on secure connectivity, and network and mobility services. We simplify communications and networking for business and government agencies. Our customers include many of the Fortune 500, and Gartner recognizes us as an industry leader. We have the broadest portfolio of technology and integrated partnerships, as well as our private network, which we use to create tailored solutions design, deployment, and ongoing management, driving cost savings, efficiency, innovation, and the ability to focus on core objectives.

We believe that each team member is a key to the success and sustainability of the group. In order to achieve this, we offer an environment where all professionals can grow and develop their skills and competencies, collaborate with diverse professionals, share knowledge and enjoy a rewarding career. 

We are seeking a highly motivated and experienced Senior Wireless Core Software Engineer with Full-Stack Development SRE expertise to join our team. The ideal candidate will possess a strong background in developing scalable and robust 3GPP cellular core applications, with a particular emphasis on cloud infrastructure and DevOps best practices. You will play a crucial role in designing, developing, and deploying mission critical software solutions, contributing to all phases of the software development lifecycle.  Mentorship of junior wireless core developers and SRE team members is an essential part of this Senior role. 

ROLE AND RESPONSIBILITIES:

• 3GPP Cellular Core: Domain expertise is mandatory in 3GPP compliant cellular core Containerized Network Functions (CNFs) for 4G, 5G NSA and 5G SA 

• Network Engineering: Domain expertise is mandatory for Enterprise and cloud networking disciplines and hands on technical design and deployment. (BPG, SD-WAN, IPSEC, SCTP, GTP, IP) 

• Full-Stack Development: Design, develop, and maintain cellular core applications using modern technologies such as Java, Go, C, Python and related frameworks. 

• Cloud Infrastructure: Demonstrated ability to architect and manage cloud-based solutions on AWS, Azure, GCP and on-premise VMware, OpenShift, Teleport, Argo CD, Crossplane and related services. 

• DevOps Practices: Expert ability to implement and maintain CI/CD pipelines, infrastructure as code (IaC), and automation tools to streamline development and deployment processes to enable a declarative and predictive operational model. 

• Database Management: Design and manage relational and NoSQL databases (e.g., PostgreSQL, MongoDB), Couchbase, Memcached, DynamoDB and related services. 

• API Development: Develop and maintain RESTful APIs and microservices. 

• Software Architecture: Lead the design and architecture of scalable and maintainable software systems with specific expertise in converged cellular core, IMS, IPX. 

• Problem Solving: Troubleshoot and resolve deeply complex technical issues, ensuring high performance and reliability of managed service solutions. 

• Collaboration: Work closely with product managers, designers, and other engineers to deliver high-quality software solutions. 

• Mentorship: Provide technical guidance and mentorship to junior team members in a fast moving, complex technical environment.   

• Version Control: Proficient utilization of Gitlab, GitHub AS for artifact version control. 

• Containerization: Demonstrated expertise in the ability to design, deploy and manage complex container deployments using Docker, Kubernetes (K8s), K8s operators, cascading helm charts and associated frameworks. 

DESIRED QUALIFICATIONS:

• Bachelor's or Master's degree in Computer Science or Engineering. 

• Proven experience as a Full-Stack Developer, with a strong portfolio of web applications. 

• Extensive experience with Java, Go, C, Python, and related frameworks. 

• Strong understanding of cloud computing architecture including on premise 

• Expert level experience with DevOps practices and tools (CI/CD, IaC, automation). 

• Proficiency in database management (SQL and NoSQL). 

• Proficiency with API development (RESTful APIs, microservices). 

• Solid understanding of Enterprise network architecture principles. 

• Excellent problem-solving and debugging skills. 

• Strong communication, collaboration and mentorship skills with both staff and customers. 

• Demonstrated experience and certifications with Docker, K8s, SRE. 

Preferred Qualifications: 

• Recognized hyperscaler certification (Azure, GCP, AWS) 

• Recognized Enterprise networking certification (CCNA, CompTIA Network , or similar) 

• Expertise with 3GPP core software (Druid, Ericsson, Mavenir, Expeto, Summa) 

• Experience with specific CI/CD tools such as Jenkins, Gitlab, GitHub Actions. 

• Deep experience with Linux network system design and administration. 

*The salary range reflected is a good faith estimate of base pay for the primary location of the position. Our compensation reflects the cost of labor across several U.S. geographic markets, and we pay differently based on those defined markets. The U.S. pay for this position is up to $160,000 annually. Pay varies by work location and may also depend on job -related knowledge, skills, experience and abilities of the successful candidate. Your recruiter can share more about the specific salary range for the job location during the hiring process.

MetTel is an Equal Opportunity Employer and considers applicants for all positions without regard to race, color, religion or belief, sex, age, national origin, citizenship status, marital status, military/veteran status, genetic information, sexual orientation, gender identity, physical or mental disability or any other characteristic protected by applicable laws. 

To learn more about our company visit us at www.mettel.net