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Full Stack Developer Jobs in Merrimack, NH (NOW HIRING)

Eliassen Group

Full Stack Engineer

Merrimack, NH · On-site

$55 - $63/hr

Hybrid Every Other Week onsite / 5 days in either Merrimack, NH or TX Our client seeks a Full Stack Engineer to support Defined Benefit technology initiatives. The role focuses on design and ...

Eliassen Group

Full Stack Engineer

Merrimack, NH · On-site

$55 - $63/hr

Hybrid Every Other Week onsite / 5 days in either Merrimack, NH or TX Our client seeks a Full Stack Engineer to support Defined Benefit technology initiatives. The role focuses on design and ...

Eliassen Group

Full Stack Engineer

Merrimack, NH · Hybrid

$55 - $63/hr

Hybrid Every Other Week onsite / 5 days in either Merrimack, NH or TX Our client seeks a Full Stack Engineer to support Defined Benefit technology initiatives. The role focuses on design and ...

Dexian

Full Stack Engineer

Bedford, NH · On-site

Proven expertise in applying software engineering architecture and design patterns (object-oriented, functional, REST) * Strong knowledge of Java and Spring framework * Solid understanding of SQL and ...

Dexian DISYS

Full Stack Engineer

Bedford, NH · On-site

Proven expertise in applying software engineering architecture and design patterns (object-oriented, functional, REST) * Strong knowledge of Java and Spring framework * Solid understanding of SQL and ...

Dexian DISYS

Full Stack Engineer

Bedford, NH · On-site

I * * BS or above in Computer Science or related field * 6+ years of development experience with proven understanding of Core Java, Spring Framework, XML, Web Services and Sybase/SQL/Relational ...

DataServ

Software Developer

North Andover, MA · On-site

DataServ / xFact is seeking a Full Stack Developer to join our engineering team. In this role, you will design and deliver scalable, high-performance solutions across the full application stack ...

Analogic

Full Stack Engineering Lead

Salem, NH · On-site

Stay Hands-On Across the Stack Design and build high-performance applications using Java, Python ... Elevate DevOps & Infrastructure Build and optimize infrastructure-as-code solutions (Terraform ...

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All JobsFull Stack Developer JobsFull Stack Developer Jobs in Merrimack, NH

Full Stack Developer information

See Merrimack, NH salary details

$24

$60

$88

How much do full stack developer jobs pay per hour?

As of Jun 28, 2026, the average hourly pay for full stack developer in Merrimack, NH is $60.67, according to ZipRecruiter salary data. Most workers in this role earn between $50.43 and $69.90 per hour, depending on experience, location, and employer.

What is the difference between Full Stack Developer vs Front End Developer?

AspectFull Stack DeveloperFront End Developer
SkillsProficient in both front-end and back-end technologies, including HTML, CSS, JavaScript, server-side languages, and databases.Specializes in client-side technologies like HTML, CSS, JavaScript, and frameworks such as React or Angular.
Work EnvironmentWorks on both server and client-side development, often handling entire project stacks.Focuses primarily on designing and implementing user interfaces and user experience.
Common UsageUsed in full project development, especially in startups and small teams.Primarily involved in UI/UX design and front-end implementation in larger teams.

While both roles require strong web development skills, Full Stack Developers handle both front-end and back-end tasks, providing a comprehensive approach to web projects. Front End Developers focus solely on creating engaging and responsive user interfaces. Understanding these differences helps employers and developers choose the right role for their project needs.

What are some common challenges Full Stack Developers face when working on cross-functional teams?

Full Stack Developers often collaborate with designers, backend engineers, project managers, and QA testers, which can introduce challenges like aligning on project requirements and managing different technical perspectives. Coordinating between frontend and backend tasks while ensuring seamless integration is another common hurdle. Additionally, staying up-to-date with evolving technologies on both ends of the stack requires strong time management and continuous learning. Effective communication and adaptability are key to overcoming these challenges and delivering cohesive solutions.

What Does a Full Stack Developer Do?

As a full stack developer, your job is to work on the front-end and the back-end of a company's database, server, and application systems. Rather than specializing in one particular area, full stack developers typically focus on prototyping software that other employees expand on later. Knowledge of many different types of systems can reduce the time needed to develop software and highlight any significant challenges. In this role, you may be asked to gain proficiency in several coding languages, use third-party data libraries, and carefully manage your time to ensure all projects finish promptly. Most full stack developers work as part of a larger team.

Will AI replace full stack dev?

Full stack developers design and build both front-end and back-end components of applications. While AI tools can automate certain coding tasks and improve efficiency, they are unlikely to fully replace full stack developers due to the need for creativity, problem-solving, and understanding complex systems. Developers will continue to adapt by integrating AI tools into their workflows and focusing on skills that require human judgment.

What are the key skills and qualifications needed to thrive as a Full Stack Developer, and why are they important?

To thrive as a Full Stack Developer, you need expertise in both front-end and back-end programming languages (such as JavaScript, HTML/CSS, Python, or Java) and a solid understanding of web development principles, often supported by a relevant degree or coding bootcamp experience. Familiarity with frameworks like React or Angular, back-end environments like Node.js or Django, version control systems like Git, and possibly cloud platforms is typically required. Strong problem-solving, communication, and collaboration skills distinguish excellent developers, allowing them to work effectively in team environments and with stakeholders. These technical and soft skills are vital for building, maintaining, and optimizing complex, user-friendly web applications that meet business needs.

What jobs can a full stack developer do?

A full stack developer can work in roles such as web developer, software engineer, or application developer, handling both front-end and back-end development. They often work with technologies like JavaScript, HTML, CSS, and server-side languages, and may be involved in designing, coding, testing, and maintaining web applications across various industries.

Is fullstack developer still in demand?

Full stack developers remain in high demand due to their ability to work on both front-end and back-end development, with skills in frameworks like React, Angular, and Node.js. The role is essential in many industries, and demand is expected to grow as companies continue to prioritize digital transformation and web applications.

What exactly does a full stack developer do?

A full stack developer is responsible for designing, developing, and maintaining both the front-end (user interface) and back-end (server, database) components of web applications. They work with programming languages like JavaScript, HTML, CSS, and server-side technologies, often using frameworks and tools to create complete solutions. This role requires knowledge of both client-side and server-side development, as well as problem-solving skills and familiarity with version control systems like Git.

What is a Full Stack Developer?

A Full Stack Developer is a software professional who is skilled in both front-end (client side) and back-end (server side) development. They are capable of designing, building, and maintaining complete web applications or systems, handling everything from user interfaces and databases to server logic and APIs. Full Stack Developers often work with a range of programming languages and frameworks, such as JavaScript, HTML/CSS, Node.js, Python, and SQL, among others. Their versatility allows them to contribute to multiple stages of the software development lifecycle, making them valuable assets to development teams.
More about Full Stack Developer jobs
What are the most commonly searched types of Full Stack Developer jobs in Merrimack, NH? The most popular types of Full Stack Developer jobs in Merrimack, NH are:
What are popular job titles related to Full Stack Developer jobs in Merrimack, NH? For Full Stack Developer jobs in Merrimack, NH, the most frequently searched job titles are:
What cities near Merrimack, NH are hiring for Full Stack Developer jobs? Cities near Merrimack, NH with the most Full Stack Developer job openings:
Full Stack Developer jobs near you
Infographic showing various Full Stack Developer job openings in Merrimack, NH as of June 2026, with employment types broken down into 78% Full Time, and 22% Contract. Highlights an 100% In-person job distribution, with an average salary of $126,202 per year, or $60.7 per hour.

Principal Full Stack Software Engineer

Fidelity Investments

Salem, NH

Full-time

Posted 16 days ago

Fidelity Investments rating

8.7

Company rating: 8.7 out of 10

Based on 266 frontline employees who took The Breakroom Quiz

14th of 139 rated financial services

Job description

Job Description:Note: Fidelity will not provide immigration sponsorship for this position.The Role

We are looking for a Principal React and Python Developer with CI/CD experience to join us!

As a Principal Full Stack Engineer, you will play a key role in designing and delivering modern web applications and the automation pipelines that ship them. You will be encouraged to gain understanding of all the components of our technology stack including Azure, databases, and related enterprise platforms and will work closely with the members of your team to deliver solutions. You will bridge traditional application development with modern platform-based solutions and take ownership of designing and implementing CI/CD processes . You will also be expected to provide guidance and mentoring to other Developers.

The Expertise and Skills You Bring

Full stack software engineering 8 plus years of experience; with a focus in financial services applications is a plus

BS/BA Degree or equivalent experience required

Strong hands-on experience developing and maintaining web applications using React (frontend) and Python (backend)

Demonstrated experience in communicating technical needs and capabilities to non-technical team members, product owners, and partners

Shown leadership skills in driving the workforce and guiding/mentoring junior developers

Experience collaborating in a team environment to develop, deploy, and support key applications and features

A proven understanding of the Agile software development methodology

Extensive experience decomposing sophisticated business problems into creative, efficient, and scalable solutions

Relevant knowledge of modern application architecture patterns and emerging technologies

Proficiency with server-side/mid-tier languages, frameworks, libraries, and related technologies: Python, .NET, .NET MVC and microsoft frameworks

Client-side language, library, and framework proficiency: React a plus, JavaScript/TypeScript, Node, NPM, HTML/CSS, SPFx

Solid understanding of CI/CD concepts and tools, including build pipelines, automation, and version control

Demonstrated ability to establish and manage CI/CD pipelines for both traditional applications (React/Python)

Experience collaborating with cross-functional teams working on Azure, Microsoft Fabric, and related cloud services

Proven ability to create automation scripts and tooling to streamline deployments and workflows

Experience defining best practices for version control, release management, and DevOps in hybrid environments

Demonstrated experience communicating technical needs and capabilities to both technical and non-technical team members

Comfort working across both traditional codebases and platform-based solutions

Your experience with the following will be a plus:

AI integration experience

Working knowledge of Azure

Azure DevOps or GitHub Actions

Exposure to data platforms or analytics tools, especially within Microsoft Fabric

Familiarity with broader DevOps practices and deployment automation.

The Team

Our team designs, develops, implements, and supports a broad and diverse technology stack, spanning modern web applications, enterprise platforms, and cloud services. We are focused on delivering innovative solutions that meet customer needs, with a strong commitment to continuous improvement and innovation.

This group leverages a range of technologies to build powerful tools and deliver exceptional user experiences, primarily across the Microsoft ecosystem, including power platform Azure, Microsoft Fabric, and related platforms.

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.

What Fidelity Investments employees say

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