javascript jobs in Northamptonshire

You will be a great fit if you: - Have 5+ years full-stack experience, with strong JavaScript/TypeScript depth. - Are backend-leaning, with deep Node. js and API experience. - Have previously worked in early-stage start-ups or very lean engineering teams. - Have extensive evidence of being a hands-on individual contributor in complex codebases.

Job Description Position: Front End JavaScript Developer Reports to: Front End Development Team Lead Hours: 40 hours Location: 3 days in North London office (Monday – Wednesday) Salary: £60 - £80,000 + eligibility for performance bonus Start date: ASAP Purpose of the role: As a Front End Developer you will join one of our multinational Scrum teams to create state-of-the-art software...

Job Description C# Developer / Full Stack Engineer (.Net Core JavaScript) St Albans / WFH to £100k Do you have expertise with C# .Net backend development combined with JavaScript skills? You could be progressing your career in a senior hands-on role at a technology driven trading company that invest in Sports betting markets with a flat structure where you will get your voice heard and can...

Job Description About Us: We're a forward-thinking technology company building innovative web solutions using modern development practices. Our team values continuous learning, collaboration, and cutting-edge technology to create exceptional digital experiences. Position Summary: We're seeking an enthusiastic Entry-Level JavaScript Developer to join our dynamic team on a contract basis. This is...

You will be expected to: ● Develop new features working with the data science ● Develop bug fixes and security patches promptly

You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node

You will be expected to: ● Develop new features working with the data science ● Develop bug fixes and security patches promptly

You must be able to demonstrate the following: ● 6+ years experience full-stack development ● High proficiency with Typescript, React, Next, Azure, Pulumi and Node

Lead Software Developer - Northampton (Hybrid) - Salary £70k + Bonus About the role: As a Lead Software Developer, you won't just be managing a team, you'll be an essential part of the development of their products. You'll be hands-on with code, lead architectural decisions, and drive innovation from within the team. Key Responsibilities: - Lead and coordinate team planning activities in...

This is a newly created position for a Lead Software Developer to take a newly created position with a Northampton based firm paying £75,000 - £85,000 + up to 15% bonus in a hybrid work environment. This is both a hands-on technical and leadership role, responsible not only for building high-quality, scalable systems but also for implementing and maintaining modern development, coding, and...

You will work with experienced consultants, designers, and software architects to create digital twins of complex automation systems and develop these into simulation and emulation models. What is on offer for a Simulation Engineer ? - Work on real-world systems that impact global supply chains.

Job Description Junior ServiceNow Developer Client: Major UK Retail Organisation Platform: ServiceNow Focus: CMS, Service Portal, Front-End Development, Quality & Testing Role Overview The Junior ServiceNow Developer will support the design, development, and testing of ServiceNow CMS and Service Portal solutions within a regulated retail environment. The role is delivery-focused, working...

Software Engineer Fully Remote | Permanent | Competitive Salary + Benefits Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Software Engineer to join their growing engineering team. This is an exciting opportunity to work on scalable, resilient systems while contributing to real-world solutions in the financial technology space. Key...

You will support the configuration, administration, and continuous optimisation of our key technology platforms, including SaaS applications, no-code/low-code solutions, and the Microsoft 365 ecosystem. Your goal is to enhance operational efficiency through automation, smart workflow design, and proactive system management.

You will work across cutting‑edge platforms including Payment Networks, Digital Banking, Emerging Payments, and highly scalable data and analytics environments built on Google Cloud Platform, Data Lakes and Power BI. This role involves modern engineering, integration, testing, and hands‑on development within a high‑impact digital landscape.

Job Description About Us We are a fast-growing fintech company building modern, scalable platforms that power real-world financial products. Our engineering culture values clean architecture, strong ownership, and pragmatic innovation. We operate in a cloud-native, microservices environment and invest heavily in frontend quality, design systems, and developer experience. The Role As a Lead...

Job Description Lead Developer London - Hybrid 1/2 days in office £85,000 - £100,000 About Simmer We’re Simmer Eats, one of Europe’s fastest-growing food brands. We’ve grown 10x in the last year, and we’re building the next phase of scale on a modern commerce and technology stack. Our mission is simple: make healthy eating effortless. High-protein, great-tasting meals delivered straight to...

You will wear multiple hats and solve varied problems.

This is a newly created position for a Full Stack Developer to take an instrumental role in a Northampton-based firm, offering a hybrid work environment (circa 3 days in the office) and a salary of £ 50,000- £ 60,000. The ideal candidate will have solid hands-on skills across a full development stack. To be considered for this position you will need solid hands on skills with: - AWS, S3 &...

About Us: We're a forward-thinking technology company building innovative web solutions using modern development practices. Our team values continuous learning, collaboration, and cutting-edge technology to create exceptional digital experiences. We're seeking an enthusiastic Entry-Level JavaScript Developer to join our dynamic team on a contract basis. This is an excellent opportunity for recent...

You will work with experienced consultants, designers, and software architects to create digital twins of complex automation systems and develop these into simulation and emulation models. What is on offer for a Simulation Engineer ? - Work on real-world systems that impact global supply chains.

This is a newly created position for a Full Stack Developer to take an instrumental role in a Northampton-based firm, offering a hybrid work environment (circa 3 days in the office) and a salary of £ 50,000- £ 60,000. The ideal candidate will have solid hands-on skills across a full development stack. To be considered for this position you will need solid hands on skills with: - AWS, S3 &...