Sr. Full-Stack Developer

Valley Bank; Morristown (NJ); On-site; USD 120,000 - 180,000; Full time

Job summary

Valley Bank in Morristown, NJ is seeking a fast-moving Senior Full Stack Developer who views AI-assisted development as a baseline capability.

You will design and build UIs with React or Angular, create robust server-side logic in C#/.NET and Python, and own the end-to-end software lifecycle from concept through CI/CD.

The role emphasizes security, performance, and collaboration with Cloud Infrastructure to deploy and monitor production applications.

Qualifications

• Bachelor's degree in a relevant field and 5+ years of full-stack development.
• Experience with AI-forward tools like Claude and Cursor.
• Proven experience in frontend UIs, microservices, APIs, containerization.

Responsibilities

• Leverage AI tooling to accelerate design, implementation, and documentation.
• Build responsive UIs with React or Angular.
• Develop server-side logic, microservices and RESTful APIs in C#/.NET and Python.
• Own CI/CD pipelines and collaborate with Cloud Infrastructure for deployment and monitoring.
• Troubleshoot and optimize for speed, scalability, and security.

Skills

AI Tooling Mastery

Prompt Engineering

C#/.NET & Python

Frontend Frameworks (React)

Databases & Caching

Azure/AWS

Docker & Kubernetes

Git/GitHub

Financial Services domain

Soft skills: doer mindset

Education

Bachelor’s degree in Computer Science/IT/Software Engineering

Tools

Docker

Kubernetes

Git

Azure

AWS

Job description

We are looking for a fast-moving Senior Full Stack Developer who views AI-assisted development as a baseline capability rather than a novelty.

Responsibilities

• Leverage AI (such as Cursor and Claude) to accelerate the design, implementation, and documentation of applications and integrations supporting capabilities across the bank (e.g., client onboarding, payments, fraud detection, servicing, etc.).
• Design and build responsive, interactive user interfaces using modern frameworks like React or Angular, ensuring a seamless user experience across devices.
• Architect, develop and maintain robust server-side logic, integrations and microservices/APIs using C# and/or Python.
• Manage the complete software process from initial concept and prototyping, application design, development, and CI/CD pipelines. Work closely with the Cloud Infrastructure team to ensure application deployment per environment, monitoring and FinOps awareness. Providing appropriate documentation for design reviews as well as handoffs to TechOps team for deployment and production monitoring.
• Troubleshoot, debug, and upgrade software while optimizing for speed, scalability, and security.

Required Skills

• AI Tooling Mastery: Proven experience using Cursor, Claude, or GitHub Copilot to support the full development lifecycle, including design exploration, implementation, testing, and documentation and to deliver code faster than traditional methods.
• Demonstrated application of thoughtful prompt engineering and structured interaction patterns to produce reliable, maintainable code.
• Technical Proficiency: Strong command of C#/.NET and Python for backend services, integrations, automation workflows and building RESTful APIs.
• Frontend Expertise: Solid understanding of secure web & mobile UI applications using HTML5, CSS3, JavaScript, and at least one modern frontend framework (e.g., React).
• Data Management: Proficiency with relational and non-relational databases, BLOB storage, caching mechanisms, and pub-sub event-driven architectures.
• Infrastructure: Experience with the Azure cloud platform (preferred) or AWS. Experience with Docker & Kubernetes required.
• Proficiency in version control systems such as Git or GitHub.
• Business Knowledge: Experience in the Financial Services domain is required. Commercial banking, consumer banking, lending, and/or payments is preferred.
• Soft Skills: A "doer" mindset - the ability to move on clarity rather than waiting for absolute certainty.

Required Experience

• Bachelor’s degree in Computer Science, Information Technology, Software Engineering. Minimum of 5 years of experience as a Full-Stack Developer, including demonstrable usage of AI-forward tools such as Claude and Cursor. Proven experience working with frontend web-based UIs, microservices architectures, API design principles (RESTful services), containerization, and orchestration technologies.

Preferred Experience

• Advanced degree in Computer Science, Information Technology, or Software Engineering. Familiarity with DevOps practices and CI/CD pipelines and a minimum of 3 years working in a banking, payments or financial services vertical.