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Software Developer 3 Jobs in Manchester, NH (NOW HIRING)

Arista Networks

Software Engineer, Layer1

Nashua, NH · On-site

Your software will need to work across a wide variety of forwarding engines, connectors and ... Qualifications * BS Computer Science/Electrical Engineering/Computer Engineering + 3 years ...

Arista Networks

Software Engineer, Layer1

Nashua, NH · On-site

Your software will need to work across a wide variety of forwarding engines, connectors and ... Qualifications * BS Computer Science/Electrical Engineering/Computer Engineering + 3 years ...

Globusmedical

Software Engineer

Methuen, MA

Bachelor's Degree with 3-5 years of professional programming experience on Windows platforms ... Experience developing software tools, utilities, and libraries/components * Experience in UI ...

Globus Medical

Software Engineer

Methuen, MA · On-site

Bachelor's Degree with 3-5 years of professional programming experience on Windows platforms ... Experience developing software tools, utilities, and libraries/components * Experience in UI ...

Fresenius Kabi

Sr Engineer (Software HIT)

Andover, MA · On-site

$124K - $163K/yr

... software used in medical devices and engineering projects related to medical technology. Applies ... Onsite 3 days per week Applicants must be authorized to work for ANY employer in the United States.

Freseniusglobal

Sr Engineer (Software HIT)

North Andover, MA · Hybrid

$131K - $173K/yr

... software used in medical devices and engineering projects related to medical technology. Applies ... Onsite 3 days per week Applicants must be authorized to work for ANY employer in the United States.

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Showing results 21-40

All JobsSoftware Developer 3 JobsSoftware Developer 3 Jobs in Manchester, NH

Software Developer 3 information

See Manchester, NH salary details

$47.8K

$111.4K

$165.3K

How much do software developer 3 jobs pay per year?

As of Aug 22, 2026, the average yearly pay for software developer 3 in Manchester, NH is $111,368.00, according to ZipRecruiter salary data. Most workers in this role earn between $89,600.00 and $129,400.00 per year, depending on experience, location, and employer.

What is the difference between Software Developer 3 vs Software Developer 2?

CriteriaSoftware Developer 3Software Developer 2
ExperienceTypically 5+ yearsTypically 3-5 years
ResponsibilitiesLead complex projects, mentor juniorsContribute to projects, assist team members
SkillsAdvanced coding, system design, problem-solvingProficient coding, basic system understanding
CertificationsOften required or preferredOften required or preferred

Software Developer 3 roles generally require more experience, advanced skills, and leadership responsibilities compared to Software Developer 2. They often lead projects and mentor junior staff, reflecting a higher level of expertise within the same industry and work environment.

What is a software developer 3?

A Software Developer 3 is a senior-level software engineer responsible for designing, developing, and maintaining complex software applications. They typically have several years of experience, advanced coding skills, and may lead projects or mentor junior developers. Proficiency in programming languages, software development tools, and understanding of system architecture are essential for this role.

What other jobs can a software developer do?

A software developer can transition into roles such as software engineer, systems analyst, technical lead, or product manager, often leveraging their programming, problem-solving, and project management skills. They may also move into specialized areas like cybersecurity, data analysis, or DevOps, which require additional certifications or training. These roles typically involve similar technical environments and tools, with some requiring leadership or domain-specific knowledge.
Software Developer 3 jobs near you
Infographic showing various Software Developer 3 job openings in Manchester, NH as of August 2026, with employment types broken down into 1% As Needed, 84% Full Time, 10% Part Time, and 5% Contract. Highlights an 89% Physical, 3% Hybrid, and 8% Remote job distribution, with an average salary of $111,368 per year, or $53.5 per hour.

Software Engineer, Layer1

Arista Networks

Nashua, NH • On-site

Full-time

Re-posted 16 days ago

Job description

Company Description
Arista Networks is an industry leader in data-driven, client-to-cloud networking for large data center, campus and routing environments. What sets us apart is our relentless pursuit of innovation. We leverage the latest advancements in cloud computing, artificial intelligence, and software-defined networking to provide our clients with a competitive edge in an increasingly interconnected world. Our solutions are designed to not only meet the current demands of the digital landscape but to also anticipate and adapt to future challenges.
At Arista we value the diversity of thought and perspectives that each employee brings to the table. We believe that fostering an inclusive environment, where individuals from various backgrounds and experiences feel welcome, is essential for driving creativity and innovation.
Our commitment to excellence has earned us several prestigious awards, such as Best Engineering Team, Best Company for Diversity, Compensation, and Work-Life Balance. At Arista, we take pride in our track record of success and strive to maintain the highest standards of quality and performance in everything we do.
Job Description
Who You'll Work With
As a Layer1 software engineer, you will get to work on software that manages the physical layer, where packets meet the outside world. Stable and reliable physical connectivity is critical for any network and that is your challenge. You will get to write control software that brings to life everything from the ubiquitous 1GBASE-T connectors to 400G long reach optics that provide fiber connectivity across continents. Your software will need to work across a wide variety of forwarding engines, connectors and interface chips called gearboxes, which allow our hardware platforms to support diverse physical connectivity options within a product family. You will build instrumentation and telemetry tools that track physical link health parameters reported by the Layer1 components and enable operators to monitor and troubleshoot their links effectively. You will also work closely with our Optics teams to define standards for new media and bring them to market.
Arista Software Engineering roles demand a strong and broad software engineering background. While the primary focus area for this role is Layer1 software, the role will cover all aspects of software development spanning the addition of new features, debugging problems and fine tuning code for scalability and performance. You will own your projects from definition to deployment and customer interactions, and you will be responsible for the quality of everything you deliver.
Arista Software Engineering prides itself on a supportive and growth oriented culture. Over time, as your interests change, coupled with evolving business needs you will have the opportunity to switch from Layer1 to other areas, if you like.
What You'll Do
  • Interface with customers, product management and hardware engineers to come up with innovative new Layer1 features.
  • Architect, design and manage the development of these features.
  • Develop and maintain features using C, C++ and Python, review and contribute to functional and design specifications. Build automated tests and test infrastructure to test the features.
  • Work with hardware and manufacturing teams to bring new Layer1 components like Phys and Transceivers to market.
  • Collaborate with hardware engineers to design optimal software control interfaces for managing Layer1 components.
  • Provide technical leadership across features, projects and tools.
  • Work with Customer Support Engineers and customers to analyze, mitigate and fix problems in customer networks.
  • Work with the System Test Engineers to analyze problems found in their tests and provide fixes for those problems.
  • Mentor new and junior engineers to bring them up to speed in Arista's software development environment.

Qualifications
  • BS Computer Science/Electrical Engineering/Computer Engineering + 3 years experience, or MS Computer Science/Electrical Engineering/Computer Engineering + 2 years experience, or Ph.D. in Computer Science/Electrical Engineering/Computer Engineering + 1 years experience, or equivalent work experience
  • Expert knowledge of C or C++ and Python.
  • Knowledge of UNIX or Linux
  • Knowledge of digital communication technologies like modulation and signal encoding schemes is a plus.
  • Understanding of IP networking and/or distributed systems is a plus
  • Experience working with low level hardware components is a plus
  • Applied understanding of software engineering principles
  • Strong problem solving and software troubleshooting skills
  • Ability to design a solution and implement features independently.
  • Ability to work in small teams.

Additional Information
Arista Networks is an equal opportunity employer. Arista makes all hiring and employment-related decisions in a non-discriminatory manner without regard to race, color, religion, sex, sexual orientation, gender identity, national origin or any other factor determined to be unlawful under applicable federal, state, or law law. All your information will be kept confidential according to EEO guidelines.

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