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Client Server

Jobs Hiring Closed Discussion

53 jobs

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53 jobs Posted Sort

Founding Software Engineer Python - Start-Up

Founding full-stack engineer at an early-stage AI start-up building compliance and operational-efficiency technology for the NHS and other regulated industries. You own Python/TypeScript development end to end — architecture, FastAPI backend services, React frontend, and Azure CI/CD — working hybrid from London and Cambridge.

Agentic AI AI API Azure CI/CD +10 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

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

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

Founding Software Engineer Python - Start-up

Overview In this Founding Software Engineer role you will shape both technology and product in a fast-growing AI startup. You’ll own the design and development of cloud-native applications, spanning backend, frontend,…

Agentic AI AI API Azure CI/CD +10 skills

Lead Software Engineer Python API

Overview In this Lead Software Engineer role, you’ll stay hands-on while guiding a technical team to build a complex SaaS calculation platform for cyber security insurance. You’ll shape architecture, define…

Azure CI/CD Cybersecurity Databricks Design Patterns +7 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

Founding Software Engineer (Python) - AI for Compliance

Client Server is seeking a Founding Software Engineer (Python) in the UK to help shape core technology and product in a fast-growing AI startup. You will own the design and build of cloud-native applications, spanning…

AI Azure CI/CD Cloud Cloud Native +2 skills

Client Server Limited

Software Engineer Python SQL - Market Data

Software Engineer Python SQL - Market Data London, Greater London | £130k - £150k per year Software Engineer / Developer (Python SQL) London to £150k+ Are you a data savvy Software Engineer with strong Python coding…

CI/CD Data Engineering Data Lake Distributed Systems ETL +7 skills

Client Server Limited

Lead Software Engineer Python Api - Fintech

Lead Software Engineer / Developer London / WFH to £120k Are you a skilled a backend focussed Python technologist with team leadership experience? You could be progressing your career at a well-funded and profitable…

API AWS Azure CI/CD Cloud +7 skills

Senior Software Engineer Python AWS - Front Office

Overview In this role you will design and build high-performance trading systems and cloud infrastructure to support front, middle and back-office operations. You will collaborate with stakeholders to translate complex…

Automation AWS CI/CD Cloud Containerization +2 skills

Client Server Limited

Python Developer / Team Lead - FinTech

A hands-on Python Developer / Team Lead at a profitable FinTech start-up, leading a small team building features for a core banking platform that integrates with major banks like HSBC. Roughly a 50/50 split between architecture/design and people management, using Python, FastAPI and GCP in a hybrid London role.

API AWS Azure CI/CD Cloud +7 skills

100K – 120K £

Client Server Limited

Lead Python Developer & Team Lead — Hybrid (London)

Lead a small London tech team as a hands-on Python Developer & Team Lead, splitting time 50/50 between architecture/design and people management while delivering features and refactoring a core banking platform. Core stack: Python, APIs, cloud services, CI/CD; hybrid model with office days in London and up to two remote days per week.

API CI/CD Cloud Python

Senior Full Stack Engineer C# Vue.js

Open 21d UKSenior

Overview In questa role you will own and deliver features end-to-end across the tech stack for an international payments platform within a global financial services group. You’ll design scalable backend services in C#…

API AWS CI/CD C# Distributed Systems +13 skills

Senior Python Developer FastAPI Azure

Open 21d UKSenior

Overview As a Senior Python Developer you combine hands-on coding with technical leadership to design and deliver a scalable SaaS calculation platform for cyber security insurance. You will shape architecture, set…

AWS Azure CI/CD Cybersecurity Design Patterns +4 skills

Python Developer SQL - Market Data

Overview As a Python Dev you will build and optimize a data platform for high-quality, reliable data delivery in a financial setting. You’ll shape implementations across the full lifecycle and work with…

CI/CD Data Quality Distributed Systems ETL Infrastructure as Code +7 skills

Web Developer JavaScript Angular - HealthTech

Overview In this role you will shape the frontend of a real-time shift rota platform, leveraging Angular 21 to modernise the web experience. You will work closely with a small team to influence best practices while…

Agile Android Angular API AWS +8 skills

Client Server Limited

Lead Backend Engineer - Technologist

Open 21d UKFull-timeLead

Lead Backend Engineer joining the consulting division of Client Server's Newcastle office, serving a scaling FinTech. Day to day: designing backend logic, building APIs and microservices (Python, TypeScript), maintaining secure server environments, mentoring engineers, and gathering requirements directly with clients. Full-time onsite, salary to £130k + bonus.

API AWS Azure CI/CD Cloud +16 skills

Client Server Limited

Senior Data Engineer - GCP, BigQuery & DBT | Hybrid

Open 22d EuropeSenior

Senior data engineer owning the GCP data platform (BigQuery, dbt) for analytics, compliance and AI at a regulated financial services firm in Kraków. Day to day: build batch and real-time ingestion/transformation pipelines, ensure data quality, and contribute to CI/CD and data governance within a squad.

AI Analytics BigQuery CI/CD Data Engineering +4 skills

Client Server Limited

Senior Data Engineer GCP BigQuery DBT

Open 22d RemoteEuropeSenior

Hands-on senior data engineer role in Kraków at a global fintech/CFD trading company: design, build and operate batch and real-time data pipelines on GCP using BigQuery, Kafka, Airflow and DBT as part of a Medallion architecture move, own data quality, observability and integrations, and support AI/data science initiatives. Office-based with 2 days a week work from home.

AI Airflow Analytics BigQuery CI/CD +15 skills

up to 27K PLN / mo