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Senior Python Software Engineer Jobs in New Hampshire

Fidelity Investments

Senior Software Engineer

Merrimack, NH · On-site

$125K - $165K/yr

Senior Software Engineer The Role A well-rounded senior software engineering professional with a strong foundation in modern development practices, this individual demonstrates a deep understanding ...

Pacific Defense

Senior Software Engineer

Nashua, NH · On-site

$123K - $163K/yr

We are looking to hire a Senior Software Engineer who wants to get involved with a small, fast-paced, and dynamic company. Responsible for developing, maintaining, and advancing state-of-the-art ...

Pacific Defense

Senior Software Engineer

Nashua, NH · On-site

$123K - $163K/yr

We are looking to hire a Senior Software Engineer who wants to get involved with a small, fast-paced, and dynamic company. Responsible for developing, maintaining, and advancing state-of-the-art ...

jobr.pro

BIOS Senior/Lead Software Engineer

Nashua, NH · On-site

$120 - $180/hr

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 ...

Pacific Defense

Senior Software Engineer

Nashua, NH · On-site

$123K - $163K/yr

We are looking to hire a Senior Software Engineer who wants to get involved with a small, fast-paced, and dynamic company. Responsible for developing, maintaining, and advancing state-of-the-art ...

Danaher

Software Engineer Internships

Concord, NH · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Manchester, NH · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Nashua, NH · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Rochester, NH · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

Danaher

Software Engineer Internships

Derry, NH · On-site

Writing and debugging code in languages such as C#, Java, Python, or C++ * Participating on an ... Software Engineering, Biomedical Engineering (with computational focus), or related field

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 ...

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Showing results 21-40

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.

Senior Software Engineer

Fidelity Investments

Merrimack, NH • On-site

$125K - $165K/yr

Full-time

Re-posted 27 days ago

Fidelity Investments rating

8.7

Company rating: 8.7 out of 10

Based on 271 frontline employees who took The Breakroom Quiz

15th of 150 rated financial services

Job description


Senior Software Engineer
The Role
A well-rounded senior software engineering professional with a strong foundation in modern development practices, this individual demonstrates a deep understanding of object-oriented design principles and engineering design patterns. They thrive in Agile environments, bring hands-on technical expertise, and are committed to delivering innovative solutions across the full software development lifecycle-from design through deployment-while collaborating effectively with team members to enhance overall performance and outcomes.
  • Mentor junior staff and define engineering best practices
  • Leverage past experiences to help lead the team through all phases of software development lifecycle
  • Work effectively with developers, stakeholders and cross-functional teams
  • Hands-on technical contributor with a strong sense of ownership
  • Commitment to producing clean, well-tested, and refactored code
  • Experience performing code reviews and ensuring code quality within the team
  • Dedication to continuous improvement, actively helping to elevate both personal and team performance

Note: Fidelity is not providing immigration sponsorship for this position
The Expertise and Skills You Bring
The ideal candidate is a passionate and skilled software engineer with a strong foundation in computer science and a deep enthusiasm for building high-quality applications. They bring hands-on experience in building scalable RESTful APIs and working with both relational and NoSQL databases. Committed to delivering high-quality solutions, they emphasize adherence to SDLC best practices and actively promote continuous integration and continuous delivery. Additionally, they are passionate about mentoring junior team members, establishing coding standards, and leveraging modern front-end technologies to create dynamic, responsive user experiences.
  • Experience mentoring junior staff and defining coding standards and best practices
  • Strong ability to conceptualize object-oriented design and apply engineering design patterns
  • Hands-on experience building RESTful web services and APIs
  • Familiarity with database systems, including relational and NoSQL technologies
  • Solid understanding of SDLC methodologies and their importance in software development
  • Passion for continuous integration and continuous delivery practices
  • Knowledge of JavaScript libraries such as Angular for building complex interactive applications
  • Experience with MVC frameworks (Angular, AngularJS, Backbone.js, React JS, or similar) and JavaScript design patterns
  • Proficient in using CSS3 features and CSS frameworks to implement responsive web design

The Team
Fidelity Charitable Technology group develops the next-generation technology that directly impacts how customers accomplish their philanthropic goals. As a Software Engineer within the technology business unit, you will help take Fidelity Charitable applications to the next level of evolution through hands-on software development, technical mentoring, and cross-team collaboration with a diverse, co-located engineering team, while also visualizing customer issues as drivers for internal change.
Company Overview
Fidelity Charitable is established in 1991 with a mission to further the American tradition of philanthropy by making charitable giving simple and effective. Since its founding, it has helped donors support over 180,000 nonprofit organizations with more than $18 billion in grants. Fidelity Charitable Services (FCS) aims to be the premier provider of charitable solutions, offering innovative and satisfying ways for customers to give, and operates the nation's largest donor-advised fund, which has introduced tens of thousands of donors to more impactful ways of achieving their philanthropic goals.
Fidelity's Onsite Working Model
Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.
Certifications:
Category:
Information Technology
Please be advised that Fidelity's business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.

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