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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

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

Client Server Limited

Lead Data Engineer GCP BigQuery DBT

RemoteEuropeLead

Lead a squad of data engineers at a global FinTech/CFD trading company in Kraków, delivering batch and real-time Kafka data pipelines on GCP. Core stack: BigQuery, dbt, SQL, Python, with Medallion architecture, data contracts, observability and people management.

Analytics BigQuery Data Governance Data Pipelines Data Quality +9 skills

up to 35K PLN / mo

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 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

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

Backend Software Engineer Python LLM

Overview In this remote-first Backend Software Engineer role, you will build and maintain production-grade AI systems and the supporting infrastructure. You’ll own technical decisions, contribute to the evolution of a…

AI AWS Cloud Conversational AI Infrastructure as Code +4 skills

Client Server Limited

Senior C#/.NET API Engineer — Full-Stack, Remote/WFH

Senior C#/.NET engineer owning features end-to-end — API design, backend services, and Vue.js front-end delivery — on a global payments platform in the Corporate Payments division. Mostly work-from-home with occasional office days in Bracknell; AWS production experience is a plus.

API Api Design AWS C# SQL +1 skills

Client Server Limited

Front Office C++ Backend Engineer — Low-Latency Trading

Open 17d RemoteUK

Backend C++ engineer redeveloping a core equity trading system for the EMEA market, tackling high-volume data and low-latency challenges on Linux. Front-office role with direct trader exposure and design-to-delivery ownership, paying up to £125k plus bonus, based in London with a weekly work-from-home option.

Client Server Limited

Senior Backend Engineer: Python, ML & AWS (Remote UK)

Open 17d RemoteUKSenior

Senior Backend Engineer building Python backend services to help produce and deploy machine learning models into production on AWS, working day to day with data scientists and ML engineers across the full ML lifecycle. Fully remote within England/UK, up to £90k, with flexible hours and mentoring opportunities.

AWS Machine Learning Python

Client Server Limited

Lead Data Engineer – GCP, BigQuery & DBT

Open 20d RemoteEuropeLead

Lead a squad of data engineers owning end-to-end data pipelines on Google Cloud Platform (BigQuery) and dbt, collaborating with Compliance, Marketing and Data Science in a regulated FinTech environment. Hybrid role based in Kraków with the option to work from home twice per week.

BigQuery Data Engineering Data Pipelines Data Science dbt +2 skills

Client Server Limited

Data Engineering Lead GCP BigQuery DBT

Open 20d RemoteEuropeLead

Lead a squad of data engineers at a global fintech/CFD trading firm in Kraków, delivering GCP data pipelines and platform capabilities (BigQuery, DBT, Kafka) across batch and real-time workloads, blending technical leadership, data governance and people management. Hybrid: 3 days in office, 2 WFH.

Analytics BigQuery Data Engineering Data Governance Data Pipelines +11 skills

up to 35K PLN / mo

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

Client Server Limited

Quantitative Developer Python C++ - MFT

Open 24d RemoteUK

A quantitative developer at a global trading firm in London joins a new team building a greenfield mid-frequency trading (MFT) platform for equities, designing and implementing trade execution algorithms (TWAP/VWAP) in Python and C++. Hybrid role (3 days in the London office) with base salary up to £175k plus discretionary bonuses.

C++ Java NumPy pandas Python +1 skills

Hybrid Backend Engineer (TypeScript) - Cybersecurity

Open 28d RemoteUK

Client Server is seeking a Backend Software Engineer / Developer (TypeScript) in Cambridge with work-from-home flexibility up to £70k. The role focuses on backend TypeScript services for the customer portal, within a…

Cybersecurity TypeScript

Full Stack Developer .Net - FinTech

Open 68d RemoteUKFull-time

Build and enhance a web-based trading platform using C#/.NET backend and TypeScript with Angular/React frontend in a TDD environment.

Angular AWS Azure Cloud Containerization +8 skills