Software Engineer III - Secure, Scalable Web Apps (React/AWS)

RELX International; Richmond; On-site; GBP 60,000 - 90,000; Full time

Job summary

RX Global in the United Kingdom is seeking a Software Engineer III to deliver production-quality software for well-defined components and features within a product. Working with guidance from senior engineers, you will contribute to secure, maintainable, and reliable systems while improving engineering quality and collaboration.

You will build modern web apps with React, Vite, REST, and GraphQL, deploy cloud-native solutions on AWS, and participate in Secure SDLC and DevSecOps practices, CI/CD

Qualifications

• Proficient in C# (.NET), JavaScript/TypeScript (React), and SQL (PostgreSQL).
• Experience in Agile cross-functional product development teams.
• Ability to translate ambiguous requirements into scalable solutions.
• Working knowledge of SOLID, design patterns, API design, DDD, and event-driven architectures.
• Experience building modern web apps with React, Vite, REST, and GraphQL.
• Experience developing cloud-native apps on AWS; applying testing, CI/CD, and Secure SDLC practices.

Responsibilities

• Produce clear technical documentation and align with architectural principles.
• Develop software with performance, resilience, extensibility, and security in mind.
• Implement testing strategies to support deployment confidence.
• Contribute to code quality improvements and engineering workflows.
• Write clean, maintainable code and participate in peer reviews.
• Support operational health, monitoring, and incident response.
• Maintain runbooks and onboarding knowledge for owned components.
• Share knowledge and mentor junior engineers when appropriate.

Skills

C#/.NET

JavaScript/TypeScript (React)

SQL (PostgreSQL)

Agile product teams

SOLID & design patterns

API design

DDD & event-driven architectures

React, Vite, REST, GraphQL

AWS cloud-native apps

CI/CD (GitHub Actions)

Secure SDLC & DevSecOps

Observability tools (Splunk, Mixpanel)

AI-assisted tools (GitHub Copilot, Bed

Tools

GitHub Actions

AWS

Splunk

Mixpanel

GitHub Copilot

Amazon Bedrock

Job description

RX Global in the United Kingdom is seeking a Software Engineer III to deliver production-quality software for well-defined components and features within a product. Working with guidance from senior engineers, you will contribute to secure, maintainable, and reliable systems while improving engineering quality and collaboration.

You will build modern web apps with React, Vite, REST, and GraphQL, deploy cloud-native solutions on AWS, and participate in Secure SDLC and DevSecOps practices, CI/CD