Senior Software Engineer (JavaScript)

Oscar Associates (UK) Limited; Colchester; Hybrid; GBP 40,000 - 50,000; Full time

Job summary

A leading company specializing in software development is seeking a Senior Software Engineer (JavaScript) to join their team in Colchester. This hybrid role offers flexible working hours and the opportunity to lead a talented team while working on innovative projects for major global brands.

Benefits

Flexible hours

Hybrid working model

Award-winning culture

Qualifications

• Strong JavaScript development experience.
• Experience in mentoring junior developers.
• Proficiency with Node.js and React.js.

Responsibilities

• Lead a team of 5 developers and mentor junior members.
• Shape architecture and drive technical decisions.
• Contribute to tech strategy and innovate solutions.

Skills

JavaScript

Node.js

React.js

HTML

CSS

PostgreSQL

TypeScript

Backend APIs

Tools

AWS

GCP

CI/CD pipelines

Job description

Senior Software Engineer (JavaScript)
?? Colchester - Hybrid (2 days in-office, your choice)
?? £40,000 - £50,000 + flexible hours + award-winning culture

Are you a strong JavaScript developer who's ready to take the next step into leadership? We're working with an award-winning Colchester-based business that partners with household name global clients, and they're looking for a Senior Software Engineer to help lead their talented dev team.

Why this role?

• Flexible working hours - work to your own rhythm, just be contactable between 10am and 4pm.

• Hybrid working - in the office just two days a week (you choose which ones).

• Step into leadership - lead a team of 5 developers, mentor juniors, and get involved in sprint planning and architecture.

• Work with big brands - contribute to high-impact projects for globally recognised clients.

• Innovation welcome - got big ideas? You'll have the space to test, build and pitch them.

This is the perfect opportunity for someone who's been playing a key role in development teams - maybe already guiding juniors or contributing to planning - and now wants to take ownership and steer a small, sharp team.

The Role

You'll be working on complex systems, helping to shape architecture, and driving technical decisions. There's plenty of variety here - from backend APIs to frontend UI, R&D, and dev strategy. The environment is collaborative and forward-thinking - your voice will matter.

Tech Stack

Required:

• Node.js

• React.js

• JavaScript / TypeScript

• HTML / CSS

• PostgreSQL

• Backend APIs

Nice to Have:

• Next.js

• GCP or AWS

• Slack, Postman

• CI/CD pipelines

• Python

You'll Be:

• Leading a team of 5 talented developers

• Supporting and mentoring junior team members

• Getting involved in architecture and sprint planning

• Innovating and contributing to tech strategy

• Building scalable systems for major global brands

Senior Software Engineer (JavaScript)
?? Colchester - Hybrid (2 days in-office, your choice)
?? £40,000 - £50,000 + flexible hours + award-winning culture

Oscar Associates (UK) Limited is acting as an Employment Agency in relation to this vacancy.

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