Demo

Software Engineer – Telecom / Optical Systems

Advantage Technical
Portsmouth, NH Full Time
POSTED ON 5/11/2026
AVAILABLE BEFORE 6/6/2026

Software Engineer – Optical / Telecom Systems

Salary: Up to $129,000 a year

Location: Newington, NH 03801

Job Type: Direct Hire

Citizenship Requirement: Must be a U.S. Citizen


About the Role

Are you looking for an opportunity with strong growth potential in a fast-paced, collaborative environment? Do you want to work with some of the world’s most innovative companies to build global connectivity?


Connecting Continents. Impacting Communities.

The backbone of the internet is a network of high-tech subsea fiber optic cables deployed across the globe—and SubCom has installed over 50% of them. Our teams design, manufacture, deploy, and maintain these systems to the highest standards, enabling fast and reliable communication worldwide.


At this company, every team member contributes to a mission-critical, end-to-end process supporting enterprises, governments, and communities across the globe.

We value creativity, innovation, and diverse perspectives. Whether you're experienced or early in your career, this is an opportunity to grow within a stable and forward-thinking organization.


Key Responsibilities

  • Design, develop, and maintain software supporting fiber-optic communication systems, with awareness of optical and physical layer behavior
  • Translate system requirements into scalable, reusable, and maintainable software solutions
  • Develop and support secure software services, including RESTful APIs and OpenConfig interfaces, used in network operations
  • Build and execute automated unit and integration tests to ensure reliability, performance, and security
  • Troubleshoot and resolve software defects, performance bottlenecks, and security vulnerabilities
  • Support system operations through software simulation and correlation with physical system performance
  • Collaborate cross-functionally with hardware, systems, and network engineering teams


Required Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Electrical Engineering, Optical Engineering, Physics, or related STEM field
  • Should have at least 3 years of experience
  • Strong understanding of fiber-optic communication systems, including optical components and system-level behavior
  • Proficiency in C , C#, SQL, and modern web technologies (e.g., React)
  • Experience with Linux-based environments (Red Hat preferred)
  • Familiarity with REST APIs, OpenConfig/OpenAPI, and secure software development practices
  • Solid foundation in data structures, algorithms, and object-oriented design
  • Experience with automated testing and version control systems
  • Strong communication skills and ability to work in a collaborative engineering environment


Preferred Background / Industry Experience

Candidates with experience in the following areas are highly encouraged to apply:

  • Telecommunications software or networking companies
  • Embedded systems development
  • Industrial automation systems
  • Defense or aerospace industries
  • Software engineers with optics or photonics exposure, including fiber-optic systems


Additional Requirements

  • Must be a U.S. Citizen (required due to project and customer constraints)

Salary : $129,000

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