Client Server Limited

Client Server

4 days ago

Backend Software Engineer TypeScript

AI Cybersecurity TypeScript

Backend Software Engineer / Developer (TypeScript) Cambridge / WFH to £70k Are you a backend focussed TypeScript Engineer? You could be progressing your career at one of the world's leading cyber security technology…

Senior Full-Stack Engineer: Vue & C#.Net, Remote

Senior full-stack engineer owning features end-to-end at a global financial services firm — primarily Vue front-end development alongside C#/.NET API and backend work, blending hands-on coding with architectural thinking. Mostly work-from-home with occasional days in the Bracknell, UK office.

API C# .NET Vue

up to 85K £

Senior Full Stack Engineer Vue C# .Net

API AWS Cloud C# .NET +7 skills

Senior full-stack engineer at a global financial services company rebuilding its international payments platform, working in the Corporate Payments division. Own features end-to-end with a Vue.js frontend focus (70%) plus C# .NET backend/API work (30%), including architecture, reliability and mentoring. Hybrid: WFH most days, Bracknell office twice a week.

75K – 85K £

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

Analytics Cloud C# Distributed Systems .NET

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.

up to 100K £

Full Stack Engineer .Net JavaScript - Sports Betting

AWS Cloud C# Design Patterns Distributed Systems +3 skills

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.

85K – 100K £

Senior Backend Engineer - C++/Windows (Finance) – 12m FTC

New UKContractSenior

12-month fixed-term contract in London building real-time, low-latency backend systems for finance/exchange connectivity, handling large data feeds over TCP/IP on Windows. Core stack is C/C++ with some C#, working in an Agile team across the full software development lifecycle.

Agile C++ C# TCP/IP

Python Software Engineer - Technologist

AI AWS Azure C++ Cybersecurity +5 skills

Backend Python engineer in the R&D team of a cybersecurity technology firm in Cambridge, building a greenfield product to defend against AI-based attacks. Day to day is backend Python development with some Rust/TypeScript/C++ and cloud platforms, hybrid from the Cambridge office twice a week.

68K – 80K £

Remote IAM Software Engineer (Python) – SaaS, 30 EU Days

IAM Infrastructure as Code Okta Python Rust +2 skills

Software engineer focused on identity and access management for a SaaS product: day to day you develop Python and Rust applications, integrate Okta, and build Terraform-based infrastructure as code in a remote-friendly global team. Offers a UK-based salary package with bonus, benefits and 30 days' leave.

Software Engineer IAM Python SaaS

New RemoteUKFull-time

Automation Cloud Cloudflare IAM Infrastructure as Code +7 skills

Software engineer focused on identity and access management for a European car-insurance tech company — building custom Python/Rust applications, Infrastructure as Code (Terraform), and integrating Okta and Cloudflare Zero Trust. Remote-first within the UK with a London office option; £78k–£90k plus bonus and benefits.

78K – 90K £

Founding Software Engineer (Python) – Equity & Impact

New RemoteUK

AI Azure CI/CD Cloud Cloud Native +2 skills

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.

Senior Software Engineer Python TypeScript AI

Agentic AI AI AWS CI/CD Cloud +7 skills

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.

70K – 80K £

Client Server

DevOps Engineer AWS - FinTech

Automation AWS CI/CD Cloud Cloud Security +10 skills

Hands-on DevOps engineer designing and scaling AWS infrastructure for trading and market data products at a fast-growing fintech. Day to day: building platforms with Terraform IaC, managing ECS container workloads, improving CI/CD and observability, and enforcing cloud security/IAM — hybrid in London, up to £80k plus bonus.

up to 80K £

Client Server

Founding Software Engineer Python - Start-up

Agentic AI AI API Azure CI/CD +11 skills

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.

up to 115K £

6 days ago

Data Engineer - Finance Data | Hybrid/WFH

AWS Cloud Data Modeling Data Pipelines Fintech

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.

6 days ago

Senior Data Engineer – FinTech Pipelines (Remote)

New HybridUKSenior

AWS Data Governance Data Pipelines Fintech PostgreSQL +1 skills

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.

up to 120K £

6 days ago

Data Engineer - Finance Data

New RemoteUK

Airflow AWS Cloud Dagster Data Engineering +11 skills

Hands-on Data Engineer at a scaling investment research tech company in London, building and evolving an AWS cloud data platform: designing data pipelines, ingestion frameworks and workflows, and managing PostgreSQL/time-series databases. Hybrid role — 3 days in the London office, 2 from home.

up to 85K £

7 days ago

Senior Data Engineer - Finance Data

Airflow AWS Cloud Dagster Data Engineering +10 skills

Senior hands-on Data Engineer at a scaling investment-research tech company in London, building AWS-based data pipelines and ingestion workflows, managing PostgreSQL and time-series databases, and migrating datasets into a unified data architecture. Hybrid: 3 days/week in the office, 2 WFH. Stack: Python, SQL, AWS, PostgreSQL, TimescaleDB, Dagster/Airflow.

up to 120K £

7 days ago

Senior DevOps Engineer - AWS, Kubernetes & CI/CD (Remote)

New UKSenior

AWS CI/CD DevOps ELK Grafana +5 skills

Senior DevOps Engineer building and operating scalable production platforms on AWS, VMware and Kubernetes. Day to day: CI/CD and Infrastructure as Code, zero-downtime deployments, observability with Prometheus, Grafana and ELK, and mentoring dev teams — mostly from home with two days a week in the Bracknell office.

7 days ago

Senior Backend Engineer - C#/.NET (Sports Trading, London)

New On-siteUKSenior

Senior, hands-on backend engineer building and improving systems in C#/.NET (ASP.NET) for a global sports trading business, based onsite in Shoreditch, London. Strong SQL/Oracle database knowledge and solid computer science fundamentals are expected.

C# .NET Oracle SQL