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97 jobs

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97 jobs Posted Sort

Client Server Limited

Remote Python Backend Engineer — AI & LLM Systems

Backend engineer building production-grade Python backend services and AI/LLM workflows that power conversational AI, working with AWS, TypeScript, Node.js, and asynchronous Python. Remote-first within the UK with flexible hours and monthly team meetups.

AI AWS Conversational AI Node.js Python +1 skills

Client Server Limited

python developer in cybersecurity

A Python backend developer in London building a greenfield cybersecurity product that defends against AI-based attacks. Day to day involves rapid prototyping, structured platform development, and solving complex problems using Python, cloud platforms (AWS/Azure/GCP), and some Rust, TypeScript, or C++.

AI AWS Azure C++ Cybersecurity +4 skills

Client Server Limited

Senior Python Developer - Cyber Security

Senior Python Developer joining the R&D team of a cybersecurity technology business in London (hybrid, twice a week in office) to build a new Greenfield product combating AI-based attacks — mostly backend Python work plus Rust and other emerging technologies. Salary £75k–£85k plus bonus and benefits.

AI AWS Azure C++ Cybersecurity +5 skills

Lead Full Stack Engineer TypeScript Python API

Lead engineer driving data and technology strategy across a private equity portfolio: running data diligence, maturing portfolio companies' data capabilities and delivering data projects that support value creation. Core tech is TypeScript and Python for API development, with cloud (AWS, Azure, GCP) and AI/agentic programming.

Agentic AI AI Analytics API Api Design +7 skills

Client Server Limited

Python Software Engineer Machine Learning Aws

Senior hands-on Python engineer at a European car insurance tech company, joining a cross-functional team to implement machine learning algorithms into production underwriting and pricing systems. Core stack is Python, AWS and ML tooling (Databricks, PostgreSQL, Redshift, MLflow); fully remote within England, salary up to £90k.

Agile AWS Databricks Design Patterns Machine Learning +6 skills

Python Software Engineer Conversational AI

A remote, hands-on engineer role designing and building production-grade AI systems and backend services for a conversational AI platform. Day to day you work with Python, LLMs, AWS, TypeScript, Node.js and infrastructure as code, owning technical decisions and evolving the architecture.

AI AWS Conversational AI Infrastructure as Code LLM +3 skills

Python Developer / Team Lead - FinTech

Hands-on Team Lead for a core banking platform at a well-funded FinTech in London: split roughly 50/50 between hands-on Python/FastAPI architecture, refactoring and feature delivery, and leading/mentoring a small team. Stack is Python with FastAPI APIs, cloud (GCP preferred), and CI/CD.

API AWS Azure CI/CD Cloud +7 skills

Machine Learning Engineer MLOps Python LLM AWS

A senior Machine Learning Engineer role at a London SaaS FinTech whose capital-markets tools serve investment banks and research providers. The hire takes hands-on technical ownership of complex systems, working with MLOps, Python, LLMs and AWS, with WFH flexibility and pay up to £90k.

AWS Fintech LLM Machine Learning MLOps +2 skills

Client Server Limited

Python Software Engineer Agentic Ai

A Python engineer builds backend code and APIs focused on agentic AI — developing, integrating and deploying intelligent agents powered by LLMs like Claude and ChatGPT, with prompt engineering, CI/CD and ideally AWS and Neo4j. London-based with work-from-home one day a week, salary up to £65k plus bonus and EMI share options.

Agentic AI Agile AI Ai Enablement API +10 skills

Client Server Limited

Backend Software Engineer Python R&D

Backend Software Engineer in an R&D team at a cybersecurity technology business, building a Greenfield product to combat AI-based attacks. Day to day is rapid prototyping and iterative development, mainly in backend Python with some Rust and other emerging technologies; hybrid role based in London (2 office days/week), salary up to £85k plus bonus.

AI AWS Azure C++ Cybersecurity +5 skills

Backend Software Engineer Python R&D

Join an R&D team building a greenfield backend product that counters AI-based security threats. The role is primarily Python (with Rust/exposure to other languages), spanning rapid prototyping, architecture, and deploying/scaling on cloud platforms (AWS/Azure/GCP). London-based with WFH.

AI AWS Azure Cloud C++ +5 skills

Senior Software Engineer C# Python AI

Salary: £40,000 - 70,000 per year Requirements Strong backend software engineering skills with C# and/or Python Strong knowledge of Computer Science fundamentals, including OOP, multithreading, design patterns, and…

Agile AI Angular AWS Azure +14 skills

Senior Java Developer – Spring Boot TDD

Salary: £40,000 - 70,000 per year Requirements: Strong backend software engineering skills and experience Strong Java and Spring Boot development experience Technical or team leadership experience, including mentoring…

Agentic AI AI AWS Cloud Design Patterns +9 skills

Client Server Limited

Python Cyber Security Software Engineer

Salary: £40,000 - 70,000 per year Requirements Advanced Python and backend software engineering experience Advanced problem-solving and critical-thinking skills Interest in learning and adopting new technologies…

AI AWS Azure Cloud C++ +6 skills

Python Software Engineer Agentic AI

Overview In this role you will design and deliver backend solutions and AI-enabled workflows that empower intelligent agents. You’ll work with a cross-functional team to implement robust APIs and prompt-driven systems…

Agentic AI Agile AI API AWS +9 skills

Python Software Engineer Cyber Security

Overview In this Python Software Engineer role, you will help build a Greenfield AI cybersecurity product within the R&D team. You’ll mainly develop backend services in Python while evaluating Rust and other…

AI AWS Azure C++ Cybersecurity +4 skills

Client Server Limited

Python Software Engineer Conversational AI

RemoteUKFull-time

Python Software Engineer Conversational AI London, Greater London | £80k - £90k per year Python Software Engineer / Developer (Conversational AI) Remote UK to £90k Are you a backend focussed Python Software Engineer…

Agentic AI AI AWS Conversational AI Infrastructure as Code +4 skills

Lead Software Engineer Python API - Fintech

Overview As Lead Software Engineer you will steer a small tech team to deliver features, perform refactoring, and contribute to a core banking platform. You will balance architecture work with people management to…

API Api Design AWS Azure CI/CD +8 skills

Client Server Limited

Backend Software Engineer Python ML AWS

Backend Software Engineer / Developer (Python Machine Learning AWS) Remote UK to £90k Are you a data savvy Backend Software Engineer with experience of implementing ML algorithms into production? You could be…

Agile AWS Databricks Design Patterns Machine Learning +6 skills

Client Server Limited

Backend Software Engineer Python LLM

RemoteUKFull-time

Backend Software Engineer / Developer (Python LLM) Remote UK to £90k Are you a backend focussed Software Engineer looking for an opportunity to progress your career, whilst working remotely on a modern tech stack? You…

Agentic AI AI AWS Conversational AI Infrastructure as Code +4 skills