203+ Fullstack Gui Software Developer Jobs in Merrimack, USA — Local Employers Hiring June 2026

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Full Stack GUI Software Developer

Req ID: 136120 Remote Position: YesRegion: AmericasCountry: USA **Summary** We are seeking an experienced full-stack GUI software developer to design, develop, and test the next-generation AI-enabled automation infrastructure for switches and integrated data center racks. This ...

Mainframe Developer

Mastech Digital provides digital and mainstream technology staff as well as Digital Transformation Services for all American Corporations. We are currently seeking a Mainframe Developer for our client in the Financial Services domain. We value our professionals, providing comprehen ...

Software Engineer

The Role As a Software Engineer on the Data team, you'll have the chance to improve your skills. You will collaborate across Fidelity teams in a fun and dynamic environment. You will work closely with our technical leads to build secure, scalable, resilient cloud-bas ...

Principal Software Engineer

**Job Description**Join BAE Systems Countermeasure & Electromagnetic Attack Solutions (CEMA) business area and lead the development of the nextgeneration RF software for the P8A Poseidon SelfProtection (P8ASP) program. Building on a $95million U.S. Navy contract, which is BAE s electronicwarfare solution t ...

Principal Software Engineer

**Job Description**Join BAE Systems Countermeasure & Electromagnetic Attack Solutions (CEMA) business area and lead the development of the nextgeneration RF software for the P8A Poseidon SelfProtection (P8ASP) program. Building on a $95million U.S. Navy contract, which is BAE s electronicwarfare solution t ...

Principal Software Engineer

**Job Description**Join BAE Systems Countermeasure & Electromagnetic Attack Solutions (CEMA) business area and lead the development of the nextgeneration RF software for the P8A Poseidon SelfProtection (P8ASP) program. Building on a $95million U.S. Navy contract, which is BAE s electronicwarfare solution t ...

Principal Software Engineer

Job Description : We are seeking a highly motivated and experienced full stack engineer to join Asset Management Technology’s Quant team. Knowledge of and experience with financial instruments, financial markets, financial models and statistics, needed. The candidate will c ...

PLM / Digital Engineering Developer

**Job Description****Join the Engineering Tools Team: Shape the Future of Product Lifecycle Management**We're seeking a talented Applications Developer II to join our dynamic Engineering Tools team at BAE Systems. As a key player in our PLM development team, you'll have the opportunity to design, develop ...

Senior/Principal Java Developer

Job DescriptionWe are seeking a Senior/Principal Java Developer to help design, enhance, and modernize mission-critical brokerage and tax processing systems. You will collaborate closely with architecture, product, and business partners to build reliable, scalable solutions that support complex financial pla ...

Principal Developer Support Analyst

Job Description : The Role Fidelity SWE Domain is seeking an experienced Principal Developer Support Analyst to join the UDE product area and work with the Developer Success team in providing superior stability and performance as we adapt to change. It is a pivotal ...

Principal Technical Writer

Job Description : The Role Fidelity Investments is seeking a Principal Technical Writer to join its UDE COE. An ideal candidate will bring the right mix of information organization, content orchestration and technology insights, along with the process and productio ...

Software Engineer Space Applications

**Job Description** Do you have experience writing code in Java? Do you love Linux? Have you built and used automated build pipelines? Have you worked on a small team previously and worn a few hats? We need your talents and experience as a Senior Software Engineer on our Space Systems team. You ...

Principal Mainframe Software Engineer

Job DescriptionWe are seeking a Principal Mainframe Software Engineer to help design, enhance, and modernize mission critical brokerage and tax processing systems. You will develop deep knowledge of the mainframe ecosystem and support high volume, business critical workloads. This role supports broader moder ...

Backend Developer (Golang / Java | Microservices)

Position Description: CGI is a global IT and business consulting services firm delivering end-to-end solutions that drive meaningful outcomes for clients worldwide. With a strong presence across industries and a collaborative, ownership-driven culture, CGI empowers professionals to build ...

FAST Labs Chief Software Architect

**Job Description****Join the Cutting-Edge Research and Development Team in FAST Labs**The BAE Systems' FAST Labs team conducts research and development in the following areas to create advanced electronic solutions for the U.S. military. These areas include: + Advanced Electronics+ Autonomy ...

Software Engineer II (On Site)

**Job Description**Come see what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from ...

Principal Full Stack Engineer (Level 4)

The Expertise/Skills You Bring and the Value You Deliver · Bachelor's degree in computer science or engineering· 12+ years of full stack development experience (currently hands-on) in Java/J2EE, Spring framework (Batch framework), Angular ...

Principal Software Engineer Algorithm Team EOIR

**Job Description**See what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from our d ...

Software Engineer II (Non traditional Path)

**Job Description**Are you a motivated and talented individual with a passion for software engineering, but don't have a traditional background in computer science or engineering? BAE Systems is seeking software engineers with 2 years of experience to join our team and contribute to designing, deve ...

FAST Labs Mission Assessment Software Engineer

**Job Description**Love being technical but have a strong software and visual creative side? Interested in visualization and presentation of complex engineering and weapon system capabilities to a range of audiences? If so, Mission Assessments may have a key role for you! BAE Systems Mission Asse ...

Principal Software Engineer Algorithm Team EOIR

**Job Description**See what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from our d ...

Full Stack Engineer

Expertise and Skills You Bring Bachelor's degree in computer science or engineering 6-9 years of hands-on full stack development experience with Java/J2EE, Spring Framework (including Batch), Angular, RE ...

Software Engineer II (Sign On Bonus Available)

**Job Description**Come see what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from ...

FAST Labs Software Engineer II (Non traditional Path)

**Job Description**Are you a motivated and talented individual with a passion for software engineering, but don't have a traditional background in computer science or engineering? Join our dynamic team of innovators and shape the future of technology with us. We're on the hunt for curious and driven ...

FAST Labs Principal Software Engineer (up to $20K Sign On Bonus)

**Job Description**Join our dynamic team of innovators and shape the future of technology with us. We're on the hunt for curious and driven individuals who thrive in collaborative environments and are passionate about harnessing the power of software to drive meaningful impact. If you're a creative problem-s ...

FAST Labs Principal Software Engineer Release Engineering & DevSecOps

**Job Description**Join our dynamic team of innovators and shape the future of technology with us. We're on the hunt for curious and driven individuals who thrive in collaborative environments and are passionate about harnessing the power of software to drive meaningful impact. If you're a creative problem-s ...

Software Engineering Section Lead C4ISR Space Systems

**Job Description****Software Engineering Section Lead C4ISR Space Systems****Lead people. Advance technology. Protect the future.** At BAE Systems, you will be part of a mission driven team that delivers innovative solutions to safeguard our nation.We are seeking an experienced engineering ...

Senior Principal Software Engineer (Sign On Bonus Available)

**Job Description**See what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from ou ...

Principal Embedded Software Engineer (Onsite & Sign On Bonus Available)

**Job Description**See what you re missing. Our employees work on the world s most advanced electronics from detecting threats for F-35 pilots to illuminating the night for soldiers. Spanning air, land, sea, and space, we are developing the technology of tomorrow, delivered today. Drawing strength from our ...

Staff Engineer, Automation Script Specialist

Req ID: 136358Remote Position: YesRegion: AmericasCountry: USA**Summary**We are seeking an experienced network automation script specialist to drive innovative test transformation. Your mission is to create an automation script framework that enables the development of new automation scripts ...

FAST Labs Software Engineer II (up to $10K Sign On Bonus)

**Job Description****Join the Cutting-Edge Research and Development Team in FAST Labs** The BAE Systems' FAST Labs team conducts research and development in the following areas to create advanced electronic solutions for the U.S. military. These areas include + Advanced Electronics+ Aut ...

FAST Labs Software Manager Section Lead (up to $20K Sign on Bonus)

**Job Description**Join our dynamic team of innovators and shape the future of technology with us. FAST Labs is seeking a Software Engineering Manager. You will be an active member of the Software Engineering leadership team, shaping the culture and process while ensuring the staffing and technical needs ...

FAST Labs Senior Principal Software Engineer (up to $20K Sign On Bonus)

**Job Description****Join the Cutting-Edge Research and Development Team in FAST Labs** The BAE Systems' FAST Labs team conducts research and development in the following areas to create advanced electronic solutions for the U.S. military. These areas include + Advanced Electronics+ Aut ...

FAST Labs Systems Engineering Section Lead

**Job Description**Join our dynamic team of innovators and shape the future of technology with us. We're on the hunt for curious and driven individuals who thrive in collaborative environments and are passionate about harnessing the power of optical sensing technology to drive meaningful operational impact f ...

FAST Labs Senior Principal II Software Engineer C CUDA ($25K Sign on Bonus)

**Job Description**Join our dynamic team of innovators and shape the future of defense technology. We re seeking highly motivated and skilled software engineers passionate about leveraging the power of C and CUDA to solve challenging real-world problems. If you re a creative problem-solver, a lifelong lear ...

FAST Labs Senior Principal II Software Engineer (up to $20K Sign On Bonus)

**Job Description****Join the Cutting-Edge Research and Development Team in FAST Labs** The BAE Systems' FAST Labs team conducts research and development in the following areas to create advanced electronic solutions for the U.S. military. These areas include + Advanced Electronics+ Aut ...

FAST Lab Systems Engineering Section Lead Mgr II

**Job Description**Join our dynamic team of innovators and shape the future of technology with us. We're on the hunt for curious and driven individuals who thrive in collaborative environments and are passionate about harnessing the power of optical sensing technology to drive meaningful operational impact f ...

Test Automation Lead

**Job Description**Join BAE Systems Countermeasure & Electromagnetic Attack Solutions (CEMA) business area and lead the development of the nextgeneration RF software for the P8A Poseidon SelfProtection (P8ASP) program. Building on a $95million U.S. Navy contract, which is BAE s electronicwarfare solution t ...

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    Fullstack Gui Software Developer Jobs in Merrimack Job Search Guide, Trends and Insights