Systems Developer – E-Commerce Integrations (Cloud-Native, AI-Driven)

Proteinworks; Liverpool; On-site; GBP 50,000 - 60,000; Full time

Job summary

A leading e-commerce company in the UK is seeking a Systems Developer to focus on backend integrations and cloud-native applications. The role demands strong expertise in programming languages and e-commerce systems, with a focus on developing scalable solutions. The ideal candidate should have a solid understanding of software architecture and AI-driven development tools.

Qualifications

• Strong commercial development experience in cloud-native applications.
• Hands-on architecture-informed development experience.
• Familiarity with various programming languages.

Responsibilities

• Design, develop, and maintain backend integrations.
• Build cloud-native, containerized applications.
• Implement queue-based processing for asynchronous workflows.

Skills

ASP.NET Core

C#

PHP

Python

JavaScript

SQL dialects

Redis

ElasticSearch

REST APIs

Docker

AWS

Education

Mathematics or Computer Science degree

Tools

Grafana

Prometheus

CloudWatch

New Relic

Datadog

Job description

Systems Developer – E-Commerce Integrations (Cloud-Native, AI-Driven)

We are seeking a Systems Developer with a strong background in e-commerce systems and backend integrations to join our fast-paced, tech-forward software engineering team. This role will focus on the development and maintenance of scalable, cloud-native software solutions that integrate our e-commerce platform with critical business systems including Warehouse Management, Finance, Inventory, and other back-office applications. This is a hands-on, architecture-informed development role requiring expertise in modern software engineering practices and tools, with an emphasis on cloud-native applications, AI-powered development tools, and system interoperability.

Responsibilities

• Design, develop, and maintain backend integrations between e-commerce systems and ERP/WMS/Finance platforms.
• Build cloud-native, containerised applications and services using modern frameworks and design patterns.
• Create middleware and intranet applications that streamline internal workflows and communication between distributed systems.
• Write clean, maintainable, and efficient code across multiple languages (C#, PHP, Python, JavaScript).
• Develop and consume REST APIs, ensuring secure, performant communication between services.
• Ensure scalability and resilience in applications handling large volumes of traffic and burst events.
• Implement and refine queue-based processing to support asynchronous workflows and event-driven architecture.
• Work collaboratively with cross-functional teams, including DevOps, Infrastructure, and Product, to deliver robust systems.
• Leverage observability tools to monitor, alert, and troubleshoot application and integration health.
• Stay current on AI-driven software development practices (e.g., GPT-assisted development, Agentic AI workflows) and suggest practical implementations.
• Participate in architecture reviews, sprint planning, code reviews, and knowledge sharing.

Required Skills & Experience

• Strong commercial development experience in:
• ASP.NET Core, C#
• PHP, Python, JavaScript
• SQL dialects: MySQL, MSSQL, PostgreSQL
• Familiarity with Redis, ElasticSearch, REST APIs
• Experience with Windows-based development: services, scheduled tasks, web servers (e.g. IIS).
• Magento or other open-source e-commerce platform integration experience

Sound Knowledge Of Software Architecture

• Design Patterns (Enterprise, Architectural, DDD)
• The Twelve-Factor App
• Clean Code principles and Refactoring
• Clean Infrastructure principles

Hands-on Experience With

• Docker, Containers
• Cloud platforms: AWS (preferred), Azure, or GCP
• Queue systems and event-driven architecture
• Prior experience building middleware for data sync, order processing, and internal APIs in a multi-system e-commerce environment

Understanding Of Architecture Patterns

• Microservices, SOA, Hexagonal, Modular Monolith

Monitoring & Observability

• Grafana, Prometheus, CloudWatch, New Relic, Datadog, etc.
• Solid grasp of AI trends in software development, particularly in using GPT tools and agentic systems

Education

• Mathematics or Computer Science degree (or equivalent experience)

Desirable Skills

• Working knowledge of VB.NET
• Exposure to Kubernetes

Core Behaviours

• Pace: Know that speed is your greatest ally. It builds momentum and is key for growth. Go fast.
• Communication: Team is your greatest asset. Talk to them face to face. Don’t try to go alone.
• Trust: When you say you’ll do it, do it. When someone asks for help, you give it.
• Transparency: Nothing is off limits. Remove walls and call out red tape.
• Challenge: Get comfortable with feeling uncomfortable. We need you to go where you’re scared to.
• Learn: Drive a culture of experimentation and continuous improvement.
• 360 Management: Manage up, down and across. Regardless of title, everyone is a leader. So Lead.

Seniority level

• Entry level

Employment type

• Full-time

Job function

• Engineering and Information Technology

Industries

• Food and Beverage Manufacturing

Wigan, England, United Kingdom