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Protein Works

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

On site

Liverpool, United kingdom

Full Time

08-05-2025

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Job Specifications

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.

Key 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
Mathematics or Computer Science degree (or equivalent 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

Desirable Skills

Working knowledge of VB.NET
Exposure to Kubernetes

About the Company

Protein Works is an innovation-led health and wellness brand with a strong science heritage. Our mission is simple: to create the best shakes on the planet. Since Protein Works was founded in 2012, our goal has been to revolutionise the world of protein by creating products that make following a healthy diet easier and more convenient. We pride ourselves with our ability to quickly meet consumer needs and adapt to changing trends. We do this by using technology and data to drive our decision-making and never stopping on ou... Know more