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Senior Python Software Engineer Jobs in New Hampshire

Arista Networks

BIOS Software Engineer

Nashua, NH · On-site

Arista BIOS software engineers are also responsible for low level software driving the CPU ... Develop automated tests using C, C++ and Python to validate your features. * Work with hardware ...

Arista Networks

BIOS Software Engineer

Nashua, NH · On-site

Arista BIOS software engineers are also responsible for low level software driving the CPU ... Develop automated tests using C, C++ and Python to validate your features. * Work with hardware ...

BAE Systems

Principal Software Engineer

Nashua, NH · On-site

$115K - $196K/yr

We are seeking a highly skilled and experienced Principal Python Engineer to join the Digital ... Develop and maintain software libraries and frameworks that support modular software architecture ...

Arista Networks

PCIe Software Engineer

Nashua, NH · On-site

PCIe software engineers write the code that manages high speed communication between hardware ... Python experience an added bonus. * Solid understanding of PCIe hardware and software drivers

ATR International

Senior Cloud Engineer

Merrimack, NH · On-site

$125K - $165K/yr

Position Description We are looking for a Senior Software Engineer to join our Market Data team ... Python, Cassandra database and knowledge of cloud platform, although we're open to strong ...

ATR International

Senior Cloud Engineer

Merrimack, NH · On-site

$125K - $165K/yr

Position Description We are looking for a Senior Software Engineer to join our Market Data team ... Python, Cassandra database and knowledge of cloud platform, although we're open to strong ...

Arista Networks

PCIe Software Engineer

Nashua, NH · On-site

PCIe software engineers write the code that manages high speed communication between hardware ... Python experience an added bonus. * Solid understanding of PCIe hardware and software drivers

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All JobsPython Software Engineer JobsSenior Python Software Engineer JobsSenior Python Software Engineer Jobs in New Hampshire

Senior Python Software Engineer information

See New Hampshire salary details

$53.5K

$138.1K

$189.6K

How much do senior python software engineer jobs pay per year?

As of Aug 13, 2026, the average yearly pay for senior python software engineer in New Hampshire is $138,072.00, according to ZipRecruiter salary data. Most workers in this role earn between $118,200.00 and $159,000.00 per year, depending on experience, location, and employer.

What is the difference between Senior Python Software Engineer vs Python Developer?

AspectSenior Python Software EngineerPython Developer
Required CredentialsBachelor's degree in CS or related field, experience in software engineeringBachelor's degree in CS or related field, coding proficiency
Work EnvironmentDesigning complex systems, leading projects, mentoringWriting code, developing applications, debugging
Employer & Industry UsageTech companies, startups, enterprise softwareWeb development, data analysis, automation projects
Common Search & Comparison IntentUnderstanding senior-level roles, responsibilities, and skillsEntry to mid-level coding roles, project involvement

The main difference between a Senior Python Software Engineer and a Python Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while Python Developers focus on coding, application development, and implementation. Both roles require strong Python skills and relevant credentials, but senior roles demand more experience and leadership capabilities.

What are some common challenges faced by senior Python software engineers when leading complex projects, and how can they be addressed?

Senior Python Software Engineers often face challenges such as balancing hands-on coding with mentoring junior team members, managing technical debt, and designing scalable solutions. Successfully addressing these challenges involves clear communication, proactive code reviews, and effective prioritization of tasks. Collaborating closely with cross-functional teams and fostering a culture of knowledge sharing can also help ensure project success and team growth.

What are the key skills and qualifications needed to thrive as a senior Python software engineer?

To thrive as a Senior Python Software Engineer, you need advanced proficiency in Python programming, strong problem-solving abilities, and a solid background in computer science or a related field. Familiarity with frameworks like Django or Flask, experience with version control systems such as Git, and knowledge of cloud platforms and CI/CD tools are typically required. Leadership, effective communication, and mentorship skills help you collaborate with teams and guide junior developers. These skills ensure the delivery of robust, scalable software solutions and foster a productive, innovative development environment.

What does a senior Python software engineer do?

A Senior Python Software Engineer designs, develops, tests, and maintains complex software applications using the Python programming language. They often lead or mentor junior developers, architect software solutions, and ensure best coding practices are followed. These professionals collaborate with cross-functional teams to deliver scalable and efficient systems, troubleshoot issues, and optimize application performance. Their expertise includes advanced knowledge of Python frameworks, libraries, and development tools, as well as experience with databases, APIs, and cloud services.

What are popular job titles related to Senior Python Software Engineer jobs in New Hampshire?

For Senior Python Software Engineer jobs in New Hampshire, the most frequently searched job titles are:

What job categories do people searching Senior Python Software Engineer jobs in New Hampshire look for?

The top searched job categories for Senior Python Software Engineer jobs in New Hampshire are:

Senior Python Software Engineer jobs near you
Infographic showing various Senior Python Software Engineer job openings in New Hampshire as of August 2026, with employment types broken down into 1% Internship, 84% Full Time, 11% Part Time, 1% Temporary, and 3% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $138,072 per year, or $66.4 per hour.

PCIe Senior/Lead Software Engineer

Arista Networks

Nashua, NH • On-site

Full-time

Re-posted 7 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
Operating right where hardware meets software, the Platform team builds the foundation for our networking ASICs and supporting infrastructure. PCIe software engineers write the code that manages high speed communication between hardware components in our switches. We work with hardware, diagnostics, and software engineers to maximize bandwidth and improve reliability on the PCIe links.
What You'll Do
As part of this team, you'll work on projects like:
  • Bringing up pcie links on new hardware designs
  • Tuning pcie parameters on root ports, bridges, and end points
  • Modifying the linux pci drivers and virtual memory allocation
  • Using AER and DPC to improve error visibility and resiliency
  • Developing userspace software that mediate between networking ASICs, FPGAs, and PCIe bridges.
  • Measuring hardware read and write performance
  • Develop automated tests using C, C++ and Python to validate your features.

Qualifications
  • Strong engineering and Computer Science fundamentals.
  • 8+ years fluency in C or C++. Python experience an added bonus.
  • Solid understanding of PCIe hardware and software drivers
  • PCIe state machine, ltssm, tlp, credit flow control knowledge a plus
  • Experience with PCIe switches
  • Significant hands-on experience diagnosing problems, troubleshooting issues, and fixing bugs in low-level firmware

If you're passionate about performance optimizations and enjoy working at the hardware/software boundary, the Platform team is a perfect choice!
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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