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Client Server Limited

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63 jobs

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63 jobs Posted Sort

Client Server Limited

Senior Full Stack Developer: Vue + C#, Remote/Hybrid

NewBe an early applicant HybridUKSenior

Senior full stack developer based in Bracknell (hybrid, with two office days per week) owning features end-to-end with a Vue frontend and C#/.NET backend (70/30 split) for a global financial services employer. The senior hire drives architecture, mentors others, and works with Product, Design and Compliance.

Client Server Limited

Remote Backend Engineer (Go/Node) - Real-Time Pub/Sub, Equity

NewBe an early applicant HybridUK

Backend engineer building and optimizing a real-time pub/sub messaging platform using Go and Node.js — designing scalable distributed systems, tuning performance, and owning critical components in an AI-driven environment. Remote with occasional meetups at the North London office; equity included.

AI Distributed Systems Node.js

Client Server Limited

Full Stack Engineer (C# & TS) — AI SaaS, Hybrid WFH

NewBe an early applicant HybridUK

Full Stack Engineer building SaaS products at a scaling AI startup in London, working across C# and TypeScript on Azure and leveraging AI tooling. Hybrid role with two days a week in the office; salary is £100k–£120k per year plus pension.

AI Azure C# SaaS TypeScript

100K – 120K £

Client Server Limited

Software Engineer Python Django Sql - Fintech

NewBe an early applicant HybridUKFull-time

Business-facing software engineer building internal platforms and applications with Python, Django, and SQL at a scaling London FinTech whose core product is a private equities / alternative investment management platform. Works across multiple teams and stakeholders, London-based, salary to £80k plus bonus.

Agentic AI AI API Django Fintech +2 skills

Client Server Limited

Software Engineer Python Genai Llm - Finance

NewBe an early applicant HybridUKContract

Senior Python engineer on a 12-month fixed-term contract at a global asset manager's Investment Technology Research team in London, prototyping and building reliable internal GenAI tools — RAG/retrieval workflows, MCP and tool integrations, and LLM evaluation. Hybrid: 3 days per week in the London office; salary to £180k.

Agentic AI API Claude Code Data Engineering Developer Experience +7 skills

Client Server Limited

Senior Python Developer / Consultant SaaS

NewBe an early applicant HybridUKSenior

Senior hands-on Python developer/consultant building cloud-based applications for a legal-tech SaaS scale-up, owning client bespoke projects end-to-end using Python (FastAPI) and AWS including CDK. Hybrid role: 3 days in the Central Manchester office or client sites, 2 days WFH; salary up to £80k.

AWS CDK Cloud DevOps FastAPI +3 skills

Client Server Limited

IAM Software Engineer (Python/Rust) — Remote + EU 30 Days

NewBe an early applicant HybridEurope

Client Server Limited is hiring an IAM Software Engineer in Madrid (hybrid: weekly office visits, with remote work possible from EU countries). Day to day the engineer builds IAM solutions and automation in Python and/or Rust, integrating Okta and IaC tools in modern cloud environments.

Automation Cloud IAM Infrastructure as Code Okta +2 skills

Client Server Limited

Full Stack Engineer (C#/.NET) – Hybrid, Cloud & Data

Build and maintain sports analytics platforms as a full-stack engineer, focused on C#/.NET Core backend work within large-scale distributed systems handling real-time data in the cloud. Hybrid role based in St Albans, UK, with two days of home working per week.

Analytics Cloud C# Distributed Systems .NET

Client Server Limited

Full Stack Engineer .Net JavaScript - Sports Betting

Full Stack Engineer building platforms that analyse and trade on global sports markets, working on large-scale distributed, real-time systems in a collaborative team. Core stack is C#/.NET Core with JavaScript, AWS, and microservices, in a hybrid role based in St Albans.

AWS Cloud C# Design Patterns Distributed Systems +3 skills

85K – 100K £

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

Client Server Limited

Data Engineer - Finance Data | Hybrid/WFH

Data Engineer building and evolving a modern AWS cloud data platform for financial data at a scaling fintech in London — designing data pipelines, ingestion frameworks and processing workflows, plus data modelling and database optimisation. Hybrid: three days in the London office, two remote.

AWS Cloud Data Modeling Data Pipelines Fintech

Client Server Limited

Senior Data Engineer – FinTech Pipelines (Remote)

New HybridUKSenior

Senior Data Engineer designing and operating scalable data pipelines for a finance/FinTech environment: building AWS ingestion frameworks, maintaining PostgreSQL and TimescaleDB, and collaborating on architecture and data governance. London-based hybrid role (3 days office, 2 remote) paying up to £120k plus bonus.

AWS Data Governance Data Pipelines Fintech PostgreSQL +1 skills

Data Engineer - Finance Data

Data Engineer at a scaling investment-research tech company in London: build and maintain AWS-based data pipelines and ingestion workflows, migrate datasets into a unified cloud architecture, and optimize PostgreSQL and time-series databases for reliable access to finance data. Hybrid role, salary to £85k + bonus.

Airflow AWS Cloud Dagster Data Lake +10 skills

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

Client Server Limited

Senior Full-Stack Tech Lead – Ruby/TS/React, B2B SaaS, Remote

New HybridUKLead

Senior full-stack engineer / technical lead owning technical strategy and architecture for developer ecosystems, centered on API and SDK design. Day to day: driving the full development lifecycle with Ruby, TypeScript and React, mentoring engineers, reviewing contributions, and collaborating with the developer community. Hybrid London/remote, package to £130k.

API React Ruby TypeScript

Release Engineering Lead Azure DevOps

New HybridUKLead

Leads release engineering for a SaaS product: owns packaging, releases and customer-facing delivery, runs day-to-day releases, and modernises CI/CD, automation, governance and observability on Azure while coaching teams to raise release maturity. Core tech: Azure, Azure DevOps, GitHub, Infrastructure as Code, GitOps.

Automation Azure Azure DevOps CI/CD Cloud +8 skills

Client Server Limited

Hybrid Senior Full-Stack Engineer (Vue + C#/.NET)

New HybridUKSenior

Senior full-stack engineer in Bracknell (hybrid: mostly remote, twice-weekly in office) owning features end-to-end across a Vue.js frontend and C#/.NET backend, driving architecture decisions and working with Product, Design, and Compliance. A regulated payments background and STEM degree are pluses.

Client Server Limited

Data Scientist (Python & SQL) - Flexible WFH €65k

Client Server Limited seeks a Data Scientist (Python SQL) in Milan with work-from-home flexibility. You will join the Pricing team to design and build predictive technology handling claims predictions, renewal…

Data Science Machine Learning Python SQL Statistics

Release Engineering Lead Azure DevOps

Release Engineering Lead at a global InsurTech business: you own day-to-day releases for an assigned SaaS product stack while modernising CI/CD pipelines, release automation and governance across the estate. Hands-on role blending Azure DevOps, GitHub, IaC and GitOps with coaching engineering teams; hybrid (3 days WFH), up to £130k plus bonus.

Automation Azure Azure DevOps CI/CD Cloud +7 skills

Full Stack Developer .Net Core AWS React

HybridUKFull-time

Full-stack developer building scalable, secure backend systems in C# .NET Core and working with AWS cloud infrastructure (Docker, Terraform) within an Agile team. Hybrid role based in Sunderland with 2-3 office days per week, paying up to £55k plus quarterly bonus; React featured in the role title.

Agile AWS Cloud C# Docker +3 skills