Senior Back End Developer

Narwhal Media Group; Bristol; Hybrid; GBP 55,000 - 75,000; Full time

Job summary

A dynamic tech company in Bristol is seeking a Senior Backend Web Developer with expertise in Python, .NET, and PHP. The role involves designing scalable backend services, optimizing performance, and mentoring junior developers. Candidates should have 5+ years of experience and a deep understanding of AI concepts. This position offers a supportive team environment, opportunities to work with cutting-edge technologies, and competitive compensation.

Benefits

Collaborative team environment

Opportunities with cutting-edge AI technologies

Career growth prospects

Qualifications

• 5+ years backend development experience with Python, .NET (C#), and PHP.
• Solid experience with RESTful APIs, microservices, and database design.
• Strong understanding of cloud platforms like AWS, Azure, or GCP.

Responsibilities

• Design and maintain scalable backend services and APIs.
• Optimize system performance and ensure high code quality.
• Lead technical discussions and guide junior developers.

Skills

Python

.NET (C#)

PHP

RESTful APIs

Cloud platforms (AWS, Azure, GCP)

Mentoring junior developers

AI/ML frameworks

Tools

Docker

Kubernetes

CI/CD tools

Job description

Senior Backend Web Developer (Multi-Language)with AI Expertise

Location: Bristol In House/Hybrid (must be within commutable distance of Bristol)

Employment Type: Full-time

Experience Level: Senior

About the Role

We are seeking a highly skilled Senior Backend Web Developer with expertise across multiple backend technologies such as Python, .NET, and PHP to join our growing development team working on our AI communications platform. In this role, you will architect, build, and maintain robust backend systems while also providing mentorship and technical leadership to a team of junior developers. A strong understanding of AI concepts, tools, and integrations is essential as we continue embedding intelligent features across our products.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs using varied languages such as Python, .NET, and PHP.
• Optimize system performance, reliability, and security across all backend components.
• Ensure high code quality through best practices, testing, and documentation.
• Technical Leadership & Mentoring:
• Support and guide junior developers through code reviews, pair-programming, and ongoing coaching.
• Lead technical discussions and help define coding standards and development processes.
• Collaborate closely with product owners, designers, and other engineers to deliver high-impact features.
• Contribute to system architecture planning and long-term platform roadmap.
• Evaluate and introduce new technologies, libraries, and tools where appropriate.
• AI & Automation:
• Integrate AI and machine-learning powered features into backend systems.
• Collaborate with AI/ML specialists to deploy and maintain intelligent services.
• Stay up to date with emerging AI trends and identify opportunities for automation and optimization.

Qualifications

• 5+ years backend development experience with strong proficiency in Python, .NET (C#), and PHP.
• Solid experience with RESTful APIs, microservices, authentication/authorization, and database design (SQL/NoSQL).
• Strong understanding of cloud platforms (AWS, Azure, or GCP).
• Experience mentoring junior developers or leading small development teams.
• Familiarity with AI/ML frameworks, data pipelines, or integrating large language models/APIs.
• Strong problem-solving skills and the ability to translate complex requirements into scalable solutions.
• Excellent communication skills and a collaborative mindset.

Nice to Have

• Experience with containerization (Docker, Kubernetes).
• Exposure to DevOps tools (CI/CD pipelines, automation).
• Knowledge of model deployment or MLOps practices.
• Experience designing distributed systems or event-driven architectures.

What We Offer

• Collaborative and supportive team environment.
• Opportunities to work with cutting-edge AI technologies.
• Career growth through leadership, architecture, and innovation.
• Flexible work arrangements and competitive compensation.