Senior Software Engineer

TEC Partners

Rayne, CM77 6WE, United Kingdom

Last month

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Senior Software Engineer - Python + React

Salary: Competitive

Location: Braintree, Essex

Work Pattern: Hybrid

Opportunity Overview

We are working with a forward-thinking technology company developing cutting-edge solutions within the utilities sector. Their cloud-native platform integrates software, hardware, and distributed energy assets to enable real-time monitoring, automation, and control at scale.

They are now looking to hire a Senior Software Engineer to play a key role in shaping the technical direction of their platform. This is a hands-on position combining strong engineering delivery with architectural ownership, offering the opportunity to work on complex, real-world systems across IoT, cloud infrastructure, and large-scale data environments.

Key Responsibilities

Design, build, and operate scalable backend systems using Python (Django) and AWS

Lead architectural decisions across performance, scalability, reliability, and security

Design and evolve APIs and data models for internal tools and customer-facing applications

Drive IoT and device communication architecture across distributed systems

Collaborate with product and design teams to translate real-world requirements into scalable solutions

Contribute to frontend development using React and supporting infrastructure

Build and optimise pipelines for ingesting and querying large-scale time-series data

Improve system performance, data retention strategies, and reporting capabilities

Work closely with hardware and edge teams on device provisioning and diagnostics

Troubleshoot and resolve complex production issues

Lead and contribute to architecture reviews and technical discussions

Mentor and support engineers through code reviews, pairing, and design guidance

Essential Skills and Experience

Strong proficiency in Python and/or significant experience with React

Solid experience with SQL and relational database design

Proven experience working with cloud infrastructure

Experience with containerisation technologies such as Docker (ECS desirable)

Strong understanding of RESTful API design

Experience working with Django and React

Demonstrated ability to design scalable, maintainable systems

Strong problem-solving skills with a hands-on engineering mindset

Desirable Experience

Experience with microservices or event-driven architectures

Exposure to time-series databases or large-scale data processing

Experience working with IoT or distributed device environments

Interest in renewable energy, industrial systems, or infrastructure technology

Experience with modern frontend frameworks such as Next.js

What's on Offer

Opportunity to shape the architecture of a complex, real-world platform

High level of ownership and influence over technical direction

Work within a small, collaborative, and high-impact engineering team

Exposure to modern technologies and challenging engineering problems

Flexible hybrid working environment

Strong opportunities for career progression as the business scales

Application Process

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

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