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Senior Software Developer Jobs in Peterborough, NH

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

$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 ...

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 ...

DEKA

Senior Software Quality Engineer

Manchester, NH · On-site

How you will make an impact as a Senior Software Quality Engineer: * Partner with Project Managers, System Engineers, Quality Systems Management & Information Technology to support the implementation ...

Optimizely

Senior Software Engineer - Data Platform

Nashua, NH · On-site

$123K - $163K/yr

We are looking for a Senior Software Engineer to join our Data Platform team. We have built sophisticated infrastructure that processes billions of events per day, enriches them via stream processing ...

Socket.dev

Senior Software Engineer, K4B

Concord, NH · On-site

$125 - $140/hr

We are looking for a strong Senior Java Software Engineer to implement new features and maintain KAYAK's world-leading platform. We are seeking for people who love working with data - parsing ...

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 working on a technology platform that will help deliver the real-time Market Data services on the ...

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 working on a technology platform that will help deliver the real-time Market Data services on the ...

Optimizely

Senior Staff Software Engineer

Nashua, NH · On-site

$124K - $163K/yr

What You Will Do As a Senior Staff Engineer, you will be a technical leader responsible for shaping ... Bachelor's degree in Computer Science, or equivalent practical experience. * 10+ years of software ...

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Senior Software Developer information

See Peterborough, NH salary details

$15

$63

$90

How much do senior software developer jobs pay per hour?

As of Aug 18, 2026, the average hourly pay for senior software developer in Peterborough, NH is $63.56, according to ZipRecruiter salary data. Most workers in this role earn between $53.94 and $71.30 per hour, depending on experience, location, and employer.

What is a senior software developer?

Senior Software Developers are experienced professionals who design, develop, and maintain complex software applications. They often lead development teams, mentor junior developers, and make critical architectural decisions. Their responsibilities include writing high-quality code, troubleshooting technical issues, and ensuring that software projects meet performance and security standards. With deep expertise in programming languages and software engineering principles, they play a key role in delivering successful technology solutions for organizations.

What does a senior software developer do?

As a Senior Software Developer, you’ll typically be responsible for leading complex development projects, designing technical solutions, and mentoring junior team members. Daily tasks often include writing and reviewing code, participating in architecture discussions, collaborating with cross-functional teams (such as QA, product management, and DevOps), and troubleshooting high-level technical issues. You may also be involved in setting coding standards, conducting code reviews, and helping to plan sprints or project roadmaps.

What skills and qualifications are needed to thrive as a senior software developer?

To thrive as a Senior Software Developer, you need deep expertise in programming languages, software architecture, and problem-solving, typically backed by a bachelor’s degree in computer science or a related field. Proficiency with development frameworks, version control systems like Git, and cloud platforms such as AWS or Azure is standard, and certifications in these areas can be beneficial. Leadership, strong communication, and mentoring abilities set standout candidates apart in this role. These skills ensure that complex projects are delivered efficiently, code quality is maintained, and junior team members are effectively guided for overall team success.

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

AspectSenior Software DeveloperSoftware Engineer
CredentialsBachelor's degree in CS or related field; experience often 5+ yearsBachelor's or higher in CS or related field; similar experience levels
Work EnvironmentCollaborates on complex projects, mentors juniors, leads technical effortsDesigns, develops, tests software; may work on specific modules or systems
Industry UsageCommonly used in tech companies, startups, and enterprise firmsWidely used across industries, often interchangeable with developer roles

The main difference is that Senior Software Developers typically have more experience, leadership responsibilities, and focus on complex project oversight, while Software Engineers may focus more on designing and implementing software solutions. Both roles require similar credentials and are integral in software development teams, but Senior Software Developers often take on mentorship and strategic tasks.

More about Senior Software Developer jobs

What are the most commonly searched types of Software Developer jobs in Peterborough, NH?

The most popular types of Software Developer jobs in Peterborough, NH are:

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For Senior Software Developer jobs in Peterborough, NH, the most frequently searched job titles are:

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Cities near Peterborough, NH with the most Senior Software Developer job openings:

Senior Software Developer jobs near you
Infographic showing various Senior Software Developer job openings in Peterborough, NH as of August 2026, with employment types broken down into 1% As Needed, 87% Full Time, 8% Part Time, and 4% Contract. Highlights an 88% Physical, 4% Hybrid, and 8% Remote job distribution, with an average salary of $132,205 per year, or $63.6 per hour.

Senior Software Engineer

Fidelity Investments

Merrimack, NH • On-site

$125K - $165K/yr

Full-time

Re-posted 2 days ago

Fidelity Investments rating

8.7

Company rating: 8.7 out of 10

Based on 272 frontline employees who took The Breakroom Quiz

16th 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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