Backend Engineer

eTeam Workforce Limited; Sheffield; Hybrid; GBP 61,000 - 80,000; Full time

Job summary

eTeam Workforce Limited in Sheffield is seeking a Backend Engineer to design, build, and maintain secure, scalable backend services that support AI-enabled solutions. The role focuses on API development, cloud-native architectures, and integration with enterprise systems.

You will collaborate with product managers, data specialists, and other engineers to deliver reliable software, implement testing, CI/CD, and documentation, and stay current with cloud technologies and AI trends.

Qualifications

• Strong Python backend experience with RESTful APIs.
• Experience with Python web frameworks (FastAPI/Flask/Django).
• Experience with cloud platforms and CI/CD pipelines.
• Experience with AI/Generative AI including LLMs and RAG.
• Knowledge of security, observability, and performance tuning.
• Excellent communication and collaboration skills.

Responsibilities

• Design, develop, test, deploy, and maintain secure, scalable backend apps and RESTful APIs using Python.
• Implement CI/CD, testing, code reviews, and technical documentation.
• Integrate backend services with enterprise platforms and third-party APIs.
• Develop AI-enabled capabilities with LLMs, RAG, and prompts.
• Apply AI governance, monitoring, and safety controls.
• Identify and resolve defects and performance issues.
• Collaborate with cross-functional teams and participate in design discussions.
• Stay updated on cloud, security, and AI trends.
• Contribute to engineering standards and processes.

Skills

Python

REST APIs

Python frameworks

CI/CD

Cloud platforms

Generative AI

LLM APIs

Security best practices

Observability

Tools

Docker

Kubernetes

Git

CI/CD tools

Job description

Role Title: Backend Engineer

Location: Sheffield

Work Mode: Hybrid 60% office 40% home

Duration: 07/05/2027

Pay Rate: £384 per day all inc. (PAYE through Umbrella)

Description:

Role Overview:

• We are seeking a highly skilled and motivated Backend Engineer to join our growing technology team. This role will focus on designing, building, and maintaining secure, scalable, and high-performing Back End services that support critical business applications and AI-enabled solutions. The successful candidate will play a key role in developing robust APIs, integrating enterprise systems, and delivering innovative solutions that leverage modern cloud technologies and Generative AI capabilities.
• As a Backend Engineer, you will collaborate closely with product managers, designers, data specialists, architects, and fellow engineers to transform business requirements into reliable and maintainable technical solutions. You will be expected to demonstrate strong engineering fundamentals, uphold software development best practices, and contribute to the continuous improvement of our technology landscape.

Key Responsibilities:

• Design, develop, test, deploy, and maintain secure, scalable Back End applications, services, and RESTful APIs primarily using Python.
• Deliver high-quality, production-ready software through modern engineering practices including version control, automated testing, peer code reviews, CI/CD pipelines, and technical documentation.
• Integrate Back End services with enterprise platforms, data sources, and third-party APIs, ensuring effective authentication, authorization, resilience, and error handling.
• Build and support AI-enabled capabilities, including Large Language Model (LLM) integrations, Retrieval-Augmented Generation (RAG), prompt engineering workflows, and agent-based architectures.
• Implement AI governance practices including model evaluation, monitoring, guardrails, security controls, and human oversight to ensure responsible and reliable deployment of AI solutions.
• Investigate and resolve application defects, performance bottlenecks, and operational incidents using logs, metrics, tracing, and observability tools.
• Work collaboratively with cross-functional teams to understand requirements, define technical approaches, and deliver successful outcomes.
• Participate in architecture and technical design discussions, providing estimates and recommendations to support project planning and delivery.
• Stay informed of emerging trends in software engineering, cloud technologies, cybersecurity, and artificial intelligence, applying relevant innovations where appropriate.
• Contribute to the continuous improvement of development standards, processes, and engineering practices.

Skills & Experience Required:

• Strong commercial experience developing Back End applications and services using Python.
• Proven experience building and maintaining RESTful APIs and distributed systems.
• Hands-on expertise with Python frameworks such as FastAPI, Flask, or Django.
• Experience using testing frameworks such as pytest and working with package/dependency management tools.
• Strong understanding of software engineering principles including clean code, object-oriented and/or functional programming, debugging, testing strategies, API design, and source control.
• Experience working with both relational and NoSQL databases, including data modelling and query optimisation.
• Practical experience implementing Generative AI solutions using LLM APIs and orchestration frameworks.
• Solid understanding of RAG architectures, embeddings, vector databases, prompt engineering, AI evaluation techniques, agent workflows, and AI safety controls.
• Experience with cloud platforms, containerisation technologies, and automated CI/CD deployment pipelines.
• Knowledge of secure software development practices, including secrets management, access control, dependency management, and data protection.
• Strong analytical thinking, troubleshooting capabilities, and problem-solving skills.
• Excellent written and verbal communication skills with the ability to communicate technical concepts to both technical and non-technical stakeholders.

Desirable Skills:

• Front End development experience using React, TypeScript, JavaScript, and modern UI component libraries.
• Experience building full-stack applications or working closely with Front End teams to define API contracts and user experiences.
• Familiarity with observability and monitoring tools, including application logging, monitoring platforms, and distributed tracing solutions.
• Experience delivering solutions within regulated, enterprise-scale, financial services, or security-conscious environments.