Senior software engineer react Work, Jobs in London, Eng (with Salaries)

Senior Software Engineer - React
Xantura —London
- Full-time
- Hybrid work
- Azure
- JavaScript
- APIs
- Annual leave
- Employee assistance programme
Quick apply
Software Engineer
Fanvue —London
- £80,000 - £115,000 a year
- Full-time
- Remote
- System design
- Master's degree
- JavaScript
- Annual leave
- Gym membership
Senior Software Engineer
Confluent —London
- £84,500 - £99,300 a year
- Full-time
- Azure
- Doctoral degree
- Computer Science
Senior Frontend Software Engineer
Utility Warehouse —London
- Full-time
- Remote
- Mentoring
- APIs
- Agile
- Employee discount
Quick apply
Graduate Programme 2027: Software Engineer (Frontend)
Revolut —London
- £15,700 a month
- Full-time
- Hybrid work
- Computer Science
- English
- Organisational skills
Software Engineer
Secret Intelligence Service —London
- £64,005 - £70,791 a year
- Full-time
- Remote
- Azure
- Oracle
- Java
- Annual leave
Senior Software Engineer
Tempcover —London
- Full-time
- Hybrid work
- AWS
- JavaScript
- APIs
- Work from home
- Employee assistance programme
Quick apply
Senior Software Engineer II
Confluent —London
- Full-time
- Azure
- Doctoral degree
- Computer Science
Senior Software Engineer, Full-stack
Pairwise —London
- Full-time
- Remote
- Azure
- Doctoral degree
- Computer Science
- Annual leave
- Life insurance
Senior Software Engineer
IDBS —Woking
- Full-time
- Remote
- DevOps
- Java
- AWS
Senior Software Engineer - Full Stack
Onmo —London
- £85,000 - £95,000 a year
- Hybrid work
- Azure
- Computer Science
- Engineering
Software Engineer
Sing King Ltd —London
- £45,000 - £60,000 a year
- Full-time
- Hybrid work
- JavaScript
- APIs
- Python
- Work from home
- Employee discount
Quick apply
Senior Software Engineer, 10 month FTC
Unmind —London
- £85,000 - £110,000 a year
- Full-time
- Hybrid work
- SQL
- AI
Senior Software Engineer I (JavaScript))
RELX —London
- Full-time
- JavaScript
- APIs
- Agile
- Employee assistance programme
- Employee discount
Senior Software Engineer
CDP Global —London
- £70,000 - £80,000 a year
- Hybrid work
- Azure
- DevOps
- English
- Employee assistance programme
Senior Software Engineer
Elevate Technology Group —London
- £70,000 - £75,000 a year
- Azure
- DevOps
- AWS
Senior Software Engineer I (JavaScript))
Elsevier —London
- Full-time
- JavaScript
- APIs
- Agile
- Employee assistance programme
- Employee discount
AI Engineer, Senior Associate
Partners Capital —London
- Azure
- Computer Science
- Master's degree
- Life insurance
Senior React Engineer
LinkedTrade Technologies —London
- English
- JavaScript
- Software development
Senior Software Engineer
Low Carbon Contracts Company —London
- £84,000 a year
- Full-time
- Hybrid work
- Azure
- Computer Science
- Engineering
- Annual leave
- Work from home
Quick apply

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Senior Software Engineer - React

Xantura
London

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Job details

Permanent | Full-time

Benefits

Cycle to work scheme
Free flu jabs
Annual leave
Company pension
Employee assistance programme
Private medical insurance
Flexible schedule

Qualifications

Azure
Node.js
CSS
React
Microsoft SQL Server
JavaScript
REST
WCAG
APIs
Agile
Data visualisation
SaaS
TypeScript
Python
HTML

Full job description

Description

As a Senior Software Engineer – React at Xantura, you will play a critical role in developing our self-service analytics and data visualisation capabilities, significantly enhancing user experience across our advanced analytics platform, OneView. You’ll help build innovative, scalable applications using React and Next.js, integrating seamlessly with OneView via REST APIs.

You will be responsible for designing performant, server-rendered and statically optimised applications using Next.js, ensuring fast load times and scalable frontend architecture suitable for Azure-hosted, multi-tenant cloud environments.

This role requires you to be a proactive self-starter who takes ownership of delivery, quality, and outcomes, operating within a structured engineering environment that values consistency, transparency, and continuous improvement.

You will collaborate closely with our Product, Platform, Data Science, and Business Consulting teams to build intuitive, impactful user interfaces that empower public sector clients to harness data-driven insights effectively.

Key Responsibilities

Frontend Development & Technical Delivery

Design, develop, and deploy responsive, interactive applications using React and Next.js
Build server-side rendered (SSR), statically generated (SSG), and hybrid applications using Next.js
Integrate applications with OneView’s REST APIs and backend services
Ensure application performance, scalability, and maintainability in an Azure cloud environment
Optimise applications for speed, accessibility, and reliability in production

Collaboration & Agile Delivery

Work within an Azure DevOps-driven delivery model, including backlog management, sprint planning, and tracking
Collaborate with cross-functional teams in an agile framework
Contribute to sprint ceremonies and deliver against agreed priorities
Communicate effectively with stakeholders

Quality Assurance & Maintenance

Follow and promote strong engineering discipline, including clear acceptance criteria and peer review
Contribute to and maintain CI/CD pipelines using Azure DevOps
Ensure code quality through structured peer reviews and adherence to agreed standards
Write clean, well-structured, reusable code with appropriate documentation
Conduct thorough testing and debugging
Take ownership of delivery through to production
Identify and resolve performance bottlenecks

Skills, Knowledge & Expertise

We’d love to hear from you if you have:

5+ years of experience building frontend applications
Strong proficiency in React and Next.js
Understanding of SSR, SSG, and modern rendering strategies
Strong JavaScript/TypeScript, HTML, and CSS skills
Experience with Azure cloud environments
Experience with Azure DevOps
Experience with scalable SaaS applications
Experience with REST APIs
Understanding of performance optimization
Experience working in agile teams
Testing experience (Jest, RTL, Cypress)
Understanding of CI/CD
Awareness of security best practices
Structured and disciplined approach to delivery

Bonus points if you have:

Experience with Azure App Services or Static Web Apps
Familiarity with Azure AD / Entra ID
Experience with advanced Next.js features
Backend knowledge (Node.js, Python, SQL Server)
Public sector experience
Accessibility (WCAG 2.1)

Location – This is a hybrid role based in our office in London (Borough). You would be expected to be able to work from the office at least 1-2 days per week.

Job Benefits

Competitive salary reviewed annually
Work for a passionate, mission-driven company solving society’s big problems
Work flexible hours around life commitments with a focus on delivering company value rather than hours worked
Ability to work remotely (excluding face-to-face Team Meetings and client meetings)
Training and development opportunities
25 days annual leave (plus bank holidays)
Company pension
Private medical insurance
Generous enhanced parental leave policies
Cycle to work scheme
Flu Vaccinations,
Eye Test and contribution towards Glasses for VDU use
Employee Assistance Programme
- Mental health and wellbeing support
- Remote GP access
- Counselling/therapy
- Physiotherapy
- Medical second opinions

About Xantura

At Xantura, we’re on a mission to reduce societal inequality by helping local authorities use data more effectively. Our AI-driven platform empowers frontline workers with the insights they need to prevent complex issues like homelessness or children being taken into care — before they happen. We make this possible by connecting siloed datasets, applying advanced machine learning to enrich the data, and using predictive analytics to identify those most at risk. Our platform then distills this into clear, actionable insights that help frontline staff intervene early and make a real difference.

It’s an exciting time to join Xantura. We’re scaling quickly, bringing on new clients, strengthening our platform, and expanding into new areas. While we’re a technology company at heart, our true focus is on improving lives — and we’re looking for people who share that vision.

Quick apply

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