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Client Server

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99 jobs

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99 jobs Posted Sort

Client Server Limited

Founding Software Engineer (Python) – Equity & Impact

Founding engineer at an early-stage AI start-up, owning the design and build of scalable, cloud-native apps end-to-end (backend and frontend) in Python and TypeScript, with CI/CD and Azure deployments. Works alongside the founding team to set engineering direction, splitting time between London and Cambridge.

AI Azure CI/CD Cloud Cloud Native +2 skills

Client Server Limited

Senior Software Engineer Python TypeScript AI

New RemoteUKSenior

Senior Software Engineer at a global games software house, taking AI prototypes into reliable production systems used by ~700,000 live users. Builds LLM-powered applications and agentic workflows across Python and TypeScript backends on AWS, working hybrid from Central Manchester three days a week.

Agentic AI AI AWS CI/CD Cloud +7 skills

Founding Software Engineer Python - Start-up

Founding engineer at a London/Cambridge startup who owns design and delivery of scalable cloud-native apps in Python and TypeScript, deployed on Azure, leveraging LLMs and agentic AI. Sets engineering practices, builds backend services, frontend components and CI/CD, and shapes product decisions alongside the founders.

Agentic AI AI API Azure CI/CD +11 skills

Senior Software Engineer Python TypeScript AI

Senior Software Engineer role at a global games software house in Manchester (with WFH options), building and enhancing AI-powered products used by ~700,000 live users. Day to day involves developing scalable applications with strong Python and TypeScript skills; salary up to £80,000.

AI Python TypeScript

Senior Python Developer - Cyber Security

New HybridUKSenior

Senior Python Developer building a new Greenfield, AI-powered security product in an R&D team in London (hybrid). Day-to-day involves rapid backend prototyping and structured delivery primarily in Python, with some Rust, TypeScript, C++, and cloud (AWS/Azure/GCP) work.

AI AWS Azure C++ GCP +4 skills

Senior Software Engineer Python TypeScript AI

Senior Software Engineer in Manchester (with WFH) at a global games software house, building and enhancing AI-powered products used by 700,000 live users. Day to day you work at the intersection of software engineering and AI, turning prototypes into production features using Python and TypeScript, earning up to £80k.

AI Python TypeScript

Client Server Limited

Full Stack Engineer / Technical Lead B2B Saas

Technical lead role at a B2B SaaS provider of serverless real-time infrastructure that processes billions of messages daily. You'd own technical strategy and architecture for developer ecosystems, define API/SDK design standards, lead cross-team initiatives, and mentor engineers. Core stack: Ruby, TypeScript, React; mostly remote with monthly meetups at a North London office.

AI API Automation Design Patterns iOS +8 skills

Python Software Engineer - Technologist

Python Software Engineer / Backend Developer Cambridge to £80k Do you have strong backend software development experience using Python? You could be joining the world's most advanced cybersecurity technology business…

AI Cybersecurity Python

Founding Software Engineer Python - Start-up

Founding Software Engineer (Python) to £115k Are you an ambitious full stack Software Engineer who thrives in early-stage environments where you can shape both the technology and the product? You could be joining a…

Client Server Limited

Software Engineer Python Django SQL - FinTech

HybridUKFull-time

Python developer at a scaling London FinTech whose core product is a private equities / alternative investment management platform. Day to day you build internal platforms and apps with Python, Django and SQL, work directly with business stakeholders, and own projects end to end. London-based role with salary to £80k plus bonus.

Agentic AI AI API Django Fintech +2 skills

Client Server Limited

Senior Full-Stack Engineer – Remote UK, AI‑Driven Fintech

Staff-level full-stack engineer owning the architecture of a real-time energy trading platform, staying hands-on building scalable systems with TypeScript, Node.js, React and AWS, collaborating across teams and influencing product decisions while using AI-assisted development practices. UK-based role.

AI AWS Node.js React TypeScript

C++ Software Engineer Swift macOS - Cyber Security

A C++ Software Engineer role at a leading cyber security technology company in Cambridge, UK (with work-from-home option), developing next-generation software to protect organisations against AI-driven cyber threats. Core stack is C++ with Swift on macOS; salary up to £80,000.

AI C++ Cybersecurity macOS Swift

Client Server Limited

Senior Java Backend Engineer — AI Claude, Real-Time FinTech

Senior Java backend engineer, onsite in Newcastle upon Tyne, to modernise a trading system for a scaling FinTech: designing robust, high-performance, low-latency Java solutions with Front Office teams, using AI tools like Claude. Salary up to £120k.

AI Fintech Java

Client Server Limited

Backend Software Engineer Python - Technologist

Backend Software Engineer joining the R&D team of a cybersecurity firm that uses AI to defend against AI-based attacks, building a new greenfield product. Mostly backend Python with some Rust/TypeScript/C++ and cloud (AWS/Azure/GCP); hybrid role based in the Cambridge office two days a week. Salary to £80k plus bonus.

AI AWS Azure C++ Cybersecurity +5 skills

Client Server Limited

Backend Software Engineer Python R&D

Backend Python engineer in the R&D team of a Cambridge cybersecurity firm building a greenfield product to combat AI-based security attacks. Day to day is rapid prototyping and platform development, mainly in Python with exposure to Rust and cloud platforms, hybrid from the Cambridge office twice a week.

AI AWS Azure C++ Cybersecurity +5 skills

Engineering Manager Big Data

UKFull-timeC-level

2 days ago Be among the first 25 applicants Get AI-powered advice on this job and more exclusive features. This range is provided by Client Server. Your actual pay will be based on your skills and experience — talk…

Agile AI Azure Big Data Data Engineering +4 skills

Client Server Limited

Senior Python Backend Engineer - AI Cybersecurity

Build a greenfield AI-driven cybersecurity product at Client Server Limited: as Senior Python Backend Engineer you will rapidly prototype ideas, tackle complex problems, and deliver robust backend services using Python and cloud platforms, ideally with some Rust, TypeScript, or C++ exposure.

AI Cloud C++ Cybersecurity Prototyping +3 skills

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

Software Engineer Python AI - Renewable Energy

An in-house engineer at a rapidly scaling UK renewable energy business builds AI and conventional software for teams across development, asset management, trading and investment — taking ambiguous problems from discovery through prototyping to production. Core stack: Python, APIs, data integration, LLMs/retrieval, CI/CD; London office with 2 days WFH.

Agentic AI AI API Automation CI/CD +4 skills

90K – 120K £

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