Senior Python Developer - Agentic AI Systems

DeliveryApp; Manchester; On-site; GBP 90,000 - 120,000; Full time

Job summary

A leading logistics technology company in Manchester is looking for an experienced Senior Python Developer. In this role, you will take ownership of designing and deploying advanced AI systems, tackling complex logistical challenges. The ideal candidate has over 5 years of experience in Python development and a proven track record of successful AI implementations. You must communicate effectively with non-technical stakeholders and work collaboratively in an on-site environment for strategic planning and architectural discussions.

Qualifications

• 5+ years of professional Python development experience.
• Portfolio of deployed AI systems required.
• Experience building autonomous task-solvers or multi-agent systems.
• Strong architectural and system design capabilities.
• Fluent English speaking skills essential for communication.
• Willingness to work on-site at least 4 days per week.

Responsibilities

• Architect and deploy autonomous AI systems aimed at solving real-world challenges.
• Lead technical decisions and drive the implementation of AI capabilities.
• Design agentic architectures that deliver business value.

Skills

Expert level Python

AI Frameworks (LangChain, CrewAI, AutoGPT)

Vector Databases (Pinecone, Milvus, Weaviate)

API Design (REST and GraphQL)

Deep understanding of LLM reasoning loops

Prompt engineering at a production scale

Tools

LangChain

CrewAI

AutoGPT-style frameworks

Pinecone

Milvus

Weaviate

REST

GraphQL

Job description

About DeliveryApp

DeliveryApp is in an exciting phase of rapid growth. As we scale our operations and technology, we are expanding our engineering team to build the next generation of our platform. We are looking for a highly capable Senior Python Developer to step in and take full ownership of our AI initiatives. You will not just be writing code; you will be driving the architecture, making critical technical decisions, and leading the implementation of our AI capabilities from the ground up.

The Mission

You will be architecting autonomous agents designed to solve high-impact, real-world challenges across our logistics network. Expect to tackle complex, reasoning-driven problems involving dynamic logistical optimization, intelligent operational automation, and advanced customer-facing solutions.

The Role

This role focuses on building autonomous, reasoning-driven AI systems. We are not looking for someone to build simple API wrappers. You will take complete ownership of designing and deploying sophisticated agentic architectures that drive real value for the business.

Core Stack

• Python: Expert level
• AI Frameworks: LangChain, CrewAI, AutoGPT-style frameworks
• Vector Databases: Pinecone, Milvus, Weaviate
• Architecture: LLM orchestration and tool-calling pipelines
• API Design: REST and GraphQL

What Sets This Role Apart

• Deep Reasoning: Deep understanding of LLM reasoning loops
• Self-Correction: Building self-correcting agent architectures
• Scale: Prompt engineering at a production scale
• Complexity: Designing and managing multi-agent workflows
• Optimization: Advanced memory and retrieval strategies (RAG optimization)

Requirements

• Experience: 5+ years of professional Python development
• Proven Track Record: A portfolio of deployed AI systems (prototypes alone will not suffice)
• Specialization: Direct experience building autonomous task-solvers or multi-agent systems
• System Design: Strong architectural and system design capabilities (whiteboarding will be required during the interview process)
• Communication: Excellent and fluent English speaking skills are absolutely essential. You must have the ability to clearly explain complex AI logic to non-technical stakeholders
• Working Model: A minimum of 4 days a week on-site is required for deep collaboration, architectural whiteboarding, and strategic planning

Compensation

• Salary: Competitive and negotiable based on experience