Casa Systems, Inc. (Nasdaq: CASA) is 5G, delivering physical, virtual and cloud-native 5G infrastructure and customer premise networking for high-speed data and multi-service communications networks. Our core and edge convergence technology enables public and private networks for both communications service providers and enterprises. Casa Systems™ products deliver higher performance, improved network flexibility and scalability, increased operational efficiency and lower total cost of ownership (TCO). Commercially deployed in more than 70 countries, Casa serves over 475 Tier 1 and regional service providers worldwide. At Casa Systems, our mission is to deliver ultra-broadband solutions that keep families, communities and the world connected. We harness our passion for innovation to drive technological solutions that allow service providers to do amazing things that improve the way we live.

We are seeking to hire a PRINCIPAL SOFTWARE ENGINEER (Mobile Core Network) to join our growing company based in Andover, MA, USA located about 30 minutes north of Boston.

The Principal Software Engineer will focus on performing analysis, design, development and debug of high performance, robust software for 4G and 5G Mobile Core Network products.

ESSENTIAL DUTIES & RESPONSIBILITIES: 

• Design and develop high-performance, reusable software for 4G and 5G mobile core User Plane Function in accordance with defined software development practices and procedures to ensure product meets company quality standards.
• Provide analysis of issues and solve problems.
• Ensure product quality through participation in peer code review and development of unit testing.
• Proactively identify and implement improvements to software components and infrastructure.
• Design and analyze solutions as per project requirements.
• Design and develop code to meet specifications.
• Ensure that code is written to a high quality to meet set technical standards.
• Perform thorough unit testing and test automation.
• Ensure documentation is comprehensive, accurate, and up to date supporting work designed and developed.
• Support team members via code review, design review, mentoring, and information and knowledge sharing.
• Monitor work against the product delivery schedule closely and provide progress updates and reports any issues or technical difficulties to manager on a regular basis.
• Provide technical guidance to less experienced Software Engineers.
• Provide suggestion on how to improve software practices and procedures.

QUALIFICATIONS:

Undergraduate degree in Computer Engineering, Electrical Engineering, Telecommunications System Management, Computer Science or a closely related technical discipline.

10+ to 15 years of related software development engineering experience in the telecom network industry.

Strong programming skills in C.

Strong debugging and troubleshooting skills.

Able to live Casa’s core values: fun work environment, innovation & risk taking; passion, dedication & perseverance; and honesty & loyalty. 

5+ years of experience in the following: 

• Expertise in networking protocols: TCP/IP, Routing protocol, VLAN, MPLS, Tunneling protocols.
• Expertise in high performance data path software design using Rule-Match-Action model.
• General knowledge of Virtualization, e.g. virtual machine, container, OpenStack and Kubernetes.
• General knowledge of mobile core network CUPS architecture and related protocols.

Experience with GTP and PFCP protocol is plus.

Experience with DPDK is plus.

Experience with CI/CD is plus.

Casa Systems, Inc. offers a great work environment, professional development, challenging careers, and competitive compensation. Casa Systems, Inc. participates in the E‑Verify program. Casa Systems is committed to fostering a diverse workforce and inclusive work environment free from unlawful employment discrimination and without barriers to Equal Employment Opportunity (EEO).

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Required Skills Required Experience

QUALIFICATIONS

To perform this job successfully, an individual must be able to perform each essential duty and responsibility satisfactorily. The requirements listed below are representative of the knowledge, skill, ability and/or physical demands required.

TECHNICAL SKILLS

Good communication skills; knowledge of equipment operation; product knowledge; basic computer knowledge; knowledge of battery handling equipment; good at multi tasking. CORE COMPETENCIES

•  Job Knowledge •  Work Quality / Work Quantity •  Customer Focus •  Initiative / Decision Making / Judgement •  Communication / Active Listening •  Accountability / Integrity •  Interpersonal Skills / Team Oriented / Collaboration •  Emotional Stability / Adaptability •  Emotional Intelligence

WORK ENVIRONMENT / PHYSICAL REQUIREMENTS

Work performed in showroom, back room and outside environment. The employee is regularly exposed to outside weather conditions. Exposure to high temperatures during summer months and low temperatures during winter months while performing daily responsibilities. The employee is occasionally exposed to high, precarious places. This role routinely uses standard office equipment such as computers and phones, and standard warehouse equipment/machinery such as hand trucks, box cutters, and inventory scanners.

The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job.

While performing the duties of this job, the employee is regularly required to use hands to finger, handle or feel; reach with hands and arms; and talk or hear. The employee is required to continuously walk, stoop, kneel, crouch, crawl, bend, climb push/pull, grip and reach above shoulder level. The employee must regularly lift and/or move objects up to 100 pounds unassisted, frequently lift and/or move objects up to 150 pounds with assistance. Must be able to go up on ladders to access heights up to 15 feet.