Mid-Senior Software Developer (.NET / Python)

Computer Futures
United Kingdom
Last week
£55,000 – £65,000 pa

Salary

£55,000 – £65,000 pa

Seniority
Senior
Posted
19 Aug 2026 (Last week)

Mid-Senior Software Developer to join a growing software engineering team delivering mission-critical solutions within logistics, automation and industrial environments.

This role offers the opportunity to work on the design, development and deployment of scalable software platforms that integrate with advanced operational technologies, warehouse systems, robotics, and enterprise applications. The successful candidate will play an active role in developing new functionality, enhancing existing products, and supporting customers throughout the software lifecycle.

The position is ideal for a developer who enjoys solving complex technical challenges, collaborating with multidisciplinary teams, and working on software that powers real-world operational systems.

Key Responsibilities

Design, develop and maintain scalable software applications using .NET and Python

Build and support RESTful APIs and backend services

Develop integrations between internal platforms and third-party applications

Work closely with project teams to gather requirements and design technical solutions

Contribute to software architecture, system design and technology selection

Develop robust database solutions and optimise application performance

Support testing, deployment and commissioning activities

Troubleshoot software defects and identify root causes of issues

Participate in code reviews and promote software engineering best practices

Produce technical documentation including functional specifications, API documentation and deployment guides

Work within Agile development methodologies and contribute to sprint planning activities

Support continuous improvement initiatives and platform innovation

Collaborate with stakeholders to ensure project objectives and delivery milestones are achieved

Support production systems and provide technical assistance where required

Technical Requirements

Essential

Strong commercial experience developing applications using C# and .NET

Commercial Python development experience

Experience building REST APIs and service-oriented architectures

Strong understanding of software design principles and object-oriented programming

Experience working with PostgreSQL, SQL Server or other relational databases

Knowledge of database design, optimisation and query development

Experience integrating software systems and third-party applications

Proficient with Git source control and modern development workflows

Experience using Docker and containerised deployments

Strong debugging and troubleshooting capabilities

Excellent communication and problem-solving skills

Desirable

FastAPI, Flask or Django

RabbitMQ or other messaging technologies

Microservices architecture

CI/CD pipelines

Azure or cloud-hosted environments

Linux environments

AI/LLM integrations and automation tooling

Warehouse Management Systems (WMS)

Warehouse Control Systems (WCS)

Robotics, AMR or ASRS technologies

Industrial automation experience

To find out more about Computer Futures please visit

Computer Futures, a trading division of SThree Partnership LLP is acting as an Employment Business in relation to this vacancy | Registered office | 8 Bishopsgate, London, EC2N 4BQ, United Kingdom | Partnership Number | OC(phone number removed) England and Wales

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