Mid-level Software Engineer, Braintree

Software Engineer - Python + React

Salary: Competitive

Location: Braintree, Essex

Work Pattern: Hybrid

We are partnering with an innovative technology company operating in the utilities sector. They are developing a cloud-native platform that integrates software, hardware, and distributed energy assets to enable real-time monitoring, control, and automation at scale.

This is an excellent opportunity for a Mid-Level Software Engineer to join a high-performing team, working on complex, real-world challenges across IoT, distributed systems, and scalable infrastructure. You will play a key role in building and evolving a platform that supports thousands of connected devices in the field.

• Develop and maintain scalable backend services using Python (Django) and AWS
• Design and build robust APIs and data models for both internal and customer-facing applications
• Work with IoT communication protocols (e.g. MQTT, HTTP) to integrate with field devices
• Contribute to the development of frontend interfaces using React
• Build and optimise pipelines for ingesting and querying large-scale time-series data
• Collaborate with cross-functional teams including hardware and edge engineering
• Troubleshoot and resolve production issues in a fast-paced environment
• Contribute to system design, architecture discussions, and technical decision-making
• Support end users and work closely with customer teams to deliver reliable solutions

• Strong experience with Python or another backend programming language
• Solid understanding of SQL and relational database design (MySQL preferred)
• Experience working with cloud platforms (AWS preferred)
• Familiarity with containerisation technologies such as Docker
• Good understanding of RESTful API design
• Experience or exposure to Django and React
• Strong problem-solving skills with a hands‑on, proactive approach

• Experience with event‑driven or microservices architectures
• Familiarity with time‑series databases or large-scale data pipelines
• Exposure to IoT systems or distributed device environments
• Interest in renewable energy, infrastructure, or industrial technology
• Experience with modern frontend frameworks such as Next.js

• Opportunity to work within a small, high-impact engineering team
• Significant ownership and influence over technical direction
• Exposure to cutting‑edge technologies and complex, meaningful projects
• Collaborative environment with experienced engineers and leadership
• Flexible hybrid working arrangements
• Strong opportunities for professional growth and progression

If you’re interested in this opportunity, please apply with your CV and a brief overview of your relevant experience. Examples of projects or technologies you’ve worked with would be highly beneficial.