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Senior Software Developer Jobs in Peterborough, NH

FI) is seeking 3-4 highly skilled Senior Software Developers with over 10 years of experience to join our dynamic team. The ideal candidates will have expertise in object-oriented development using ...

Eng Sr - SW

Merrimack, NH · On-site

$97K - $164K/yr

We need your talents and experience as a Senior Software Engineer on our Space Systems team. You will join a team of engineers on a program that provides customers with scalable data processing ...

Eng Sr Prin - SW

Merrimack, NH · On-site

$130K - $221K/yr

Join our team as a Senior Principal Software Engineer in FAST Labs Engineering As a key member of our team, you will have the opportunity to work on cutting-edge software projects, collaborating with ...

Eng Sr Prin II - SW

Merrimack, NH · On-site

$146K - $249K/yr

Join our team as a Senior Principal II Software Engineer in FAST Labs Engineering As a key member of our team, you will have the opportunity to work on cutting-edge software projects, collaborating ...

Eng Sr Prin - SW

Manchester, NH · On-site

$122K - $208K/yr

We put our customers first - exemplified by our mission: "We Protect Those Who Protect Us ® ." We are looking for a talented Senior Principal Software engineer to work in the area of RFCM ...

Eng Sr Prin II - SW

Merrimack, NH · On-site

$149K - $254K/yr

FAST Labs is seeking a Software Engineering Manager. You will be an active member of the Software ... Work closely with senior engineers, customers, and other stakeholders to develop and implement ...

Eng Sr - SW

Merrimack, NH · On-site

$97K - $164K/yr

We are looking for a talented Senior Level Software engineer to support analyzing, developing, and coding complex software for Pointer Tracking algorithms. You will be an integrated team member ...

Eng Sr Prin III - SW

Merrimack, NH · On-site

$153K - $260K/yr

Work closely with senior engineers, customers, and other stakeholders to develop and implement software solutions that meet customer needs. * Developing software applications : Design, develop, test ...

Showing results 21-40

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.

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:

What are popular job titles related to Senior Software Developer jobs in Peterborough, NH?

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

What cities near Peterborough, NH are hiring for Senior Software Developer jobs?

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

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.

Principal Software Engineer/Developer

Fidelity Investments

Merrimack, NH

Full-time

Re-posted 5 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

Job Description:

Note: Fidelity will not provide immigration sponsorship for this position.

Position Description:

Programs server-side (integration/controller layer) applications, using Java, Spring Boot, and client-side (presentation layer) and Angular. Reviews system design specifications, contributing to technical design documentation, coding, design and code reviews, unit testing, development-led integration testing, and defect resolution according to Agile software development methodologies. Builds, modernizes, and maintains systems. Uses business knowledge to translate the vision for divisional initiatives into business solutions by developing complex or multiple software applications and conducting studies of alternatives. Analyzes and recommends changes in project development policies, procedures, standards, and strategies to development experts and management.

Primary Responsibilities:

  • Participates in architecture design teams.
  • Defines and implements application-level architecture.
  • Develops applications on complex projects, components, and subsystems for the division.
  • Recommends development testing tools and methodologies and reviews and validates test plans.
  • Responsible for QA readiness of software deliverables.
  • Develops comprehensive documentation for multiple applications or subsystems.
  • Establishes full project life cycle plans for complex projects across multiple platforms.
  • Responsible for meeting project goals on-time and on-budget.
  • Advises on risk assessment and risk management strategies for projects.
  • Plans and coordinates project schedules and assignments for multiple projects.
  • Acts as a primary liaison for business units to resolve various project/technology issues.
  • Provides technology solutions to daily issues and technical evaluation estimates on technology initiatives.
  • Advises senior management on technical strategy.
  • Mentors junior team members.
  • Performs independent and complex technical and functional analysis for multiple projects supporting several divisional initiatives.
  • Develops original and creative technical solutions to on-going development efforts.

Education and Experience:

Bachelor's degree in Applied Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and five (5) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, developing, testing, implementing, system integrating, and supporting systems applications using Core Java, Spring, and Restful web services.

Or, alternatively, Master's degree in Applied Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and three (3) years of experience as a Principal Software Engineer/Developer (or closely related occupation) designing, developing, testing, implementing, system integrating, and supporting systems applications using Core Java, Spring, and Restful web services.

Skills and Knowledge:

Candidate must also possess:

  • Demonstrated Expertise ("DE") planning, designing, developing, deploying, and maintaining API management services within a financial services environment.
  • DE supporting the full application development lifecycle -- analysis, design, development, test, and deployment -- using Spring Boot, Angular, Node JS, and JIRA.
  • DE developing multi-tier enterprise applications using JAVA, Spring Boot, SQL, and NoSQL; creating Cloud-based applications using data warehouse concepts (Snowflake); and writing CloudFormation Templates and Jenkins pipelines.
  • DE deploying and debugging applications on the Cloud or On Prem using CloudFormation templates and Shell Scripting; conducting logging and tracing using Datadog and Splunk; and implementing Continuous Integration/Continuous Deployment (CI/CD) using DevOps tools -- Git, Jenkins, uDeploy, and Sonar.

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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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