Senior Full Stack Developer

Northampton Business Directory; Northampton; Hybrid; GBP 60,000 - 70,000; Full time

Job summary

A fast-growing financial technology organisation is seeking a Senior Full Stack Developer to design, build, and maintain core internal applications. This role involves collaborating with data and CRM teams, implementing CI/CD practices, and ensuring technical quality. The ideal candidate has over 5 years of experience in full-stack development, particularly with React and Node.js. This position offers a competitive salary and a hybrid work environment with opportunities for career growth.

Benefits

Competitive bonus scheme

Career development opportunities

Collaborative work culture

Qualifications

• 5+ years as a Full Stack Developer with expertise in React and Node.js.
• Strong knowledge of AWS services (Lambda, S3, EC2, Redshift).
• Experience building and consuming APIs and integrating applications with CRM systems.

Responsibilities

• Architect and develop applications using React, Node.js, Python, and AWS.
• Integrate internal platforms with CRM and external partners via REST APIs.
• Implement CI/CD, version control, and testing frameworks to professionalise development.

Skills

React

Node.js

AWS services

API integration

Agile methodologies

Job description

SENIOR FULL STACK DEVELOPER

Location: Northampton | Hybrid (2 days office)

Salary: £60 000 - £70 000 + Bonus + Benefits

About the Company - Modern Technology in Financial Services

A fast-growing financial technology organisation building scalable digital platforms to transform how customers access financial products. Its development team is expanding to deliver new customer journeys, data-driven automation and seamless system integration through a modern React, Node.js, Python and AWS stack interfacing with Zoho CRM.

The Role - Hands-On Engineering and Technical Leadership

The Senior Full Stack Developer will design, build and maintain core internal applications and web platforms supporting new financial products and customer self-service solutions. You'll own end-to-end delivery from architecture through deployment and introduce modern engineering standards across the team.

Key Responsibilities

• Architect and develop applications using React, Node.js, Python and AWS (Lambda, S3, Redshift).
• Integrate internal platforms with CRM and external partners via REST APIs.
• Implement CI/CD, version control and testing frameworks to professionalise the development lifecycle.
• Success will be measured by establishing scalable code practices, mentoring developers and delivering early deployments within six months.
• Collaborate with data and CRM teams to deliver automation and analytics capabilities.
• Drive technical quality, security and performance across all builds.

Candidate Profile

• 5 + years as a Full Stack Developer with expertise in React and Node.js.
• Strong knowledge of AWS services (Lambda, S3, EC2, Redshift).
• Experience building and consuming APIs and integrating applications with CRM or data systems.
• Background in Agile software development and mentoring junior engineers.
• Ability to balance hands-on coding with technical decision-making and architecture planning.

Why Join

• Key engineering role shaping a modern platform in a scaling organisation.
• Opportunity to introduce best practice and influence technical direction.
• Hybrid working (2 days office) with a supportive, collaborative culture.
• Competitive bonus scheme and career development within a growing technology function.

Visa Transfer Policy: UK right to work preferred; visa transfer for exceptional UK-based /UK experienced candidates only may be considered.