Client Server

Backend Software Engineer Python LLM - Finance

Agentic AI Agile AI API Api Design +9 skills

Overview As a Backend Software Engineer, you will design and build autonomous AI systems that integrate multi-modal LLMs, and create agentic workflows to enable AI agents to interact with data sources and APIs. You…

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Lead Software Engineer Python API - Fintech

API AWS Azure CI/CD Cloud +7 skills

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…

Python Developer IAM Okta SaaS

Automation Cloud Cloudflare IAM Infrastructure as Code +5 skills

Overview In this role you will advance identity and access management through software, automation, and cloud tooling. You’ll contribute to secure access platforms and internal tooling, collaborating with Security,…

Full Stack Developer JavaScript Vue.js C# .Net

API AWS Cloud C# .NET +7 skills

Bracknell, Berkshire | £70k - £85k per year Do you enjoy working across the full tech stack, taking ownership and leading projects? You could be progressing your career in a senior, hands-on Full Stack Developer role a…

NewBe an early applicant UKSenior

Senior DevOps Engineer (Azure) - C# | Kubernetes & CI/CD

Ansible Azure Azure DevOps CI/CD Cloud +8 skills

Senior DevOps engineer owning cloud infrastructure for a fintech platform on Azure — building and running CI/CD pipelines, infrastructure-as-code, Kubernetes and monitoring across Windows and Linux. Core stack: Azure DevOps, Terraform, Ansible, Docker, Kubernetes, PowerShell.

NewBe an early applicant UKFull-timeSenior

Senior DevOps Engineer C# Azure - FinTech

Analytics Ansible Automation AWS Azure +13 skills

Senior DevOps Engineer at a scaling fintech in Newcastle building platform software for investment management (hedge funds). Owns CI/CD, infrastructure-as-code, monitoring and operational tooling on Azure using Terraform, Ansible, Docker/Kubernetes and PowerShell across Windows/Linux; onsite Mon-Fri, salary to £130k.

up to 130K £

Backend Developer Golang Node Pub / Sub

AI Cloud Distributed Systems Event Driven Architecture Kafka +4 skills

Backend engineer working on the core of a real-time messaging platform, building scalable distributed systems for low-latency Pub/Sub messaging, state sync and AI communication infrastructure in Go or Node.js. Mostly remote with monthly meetups at a North London office; salary up to £120k plus equity.

up to 120K £

Backend Software Engineer Python LLM - Finance

Agentic AI Agile AI API Cloud +14 skills

Backend engineer at a finance technology consultancy serving global investment banks, designing autonomous AI systems: multi-modal LLM integration, agentic workflows with RAG and prompt engineering, model optimisation, and scalable MLOps pipelines. Core stack is Python with API development and cloud-native AI deployment.

75K – 90K £

Python Developer for IAM & Okta SaaS (Remote)

Cloud IAM Okta Python Rust +2 skills

Python Developer/Software Engineer building IAM & Okta SaaS: writing code in Python and Rust, managing Terraform-based cloud infrastructure, and collaborating with security and engineering teams across the full development lifecycle. Remote-friendly role with office days in London.

75K – 90K £

NewBe an early applicant RemoteUKFull-time

Python Developer IAM Okta SaaS

Automation Cloud Cloudflare IAM Infrastructure as Code +7 skills

Python Developer shaping identity and access management at a European car-insurance tech company: building secure-access solutions with Python (some Rust), Terraform IaC, and platforms like Okta and Cloudflare Zero Trust, plus automation and internal tooling. Remote-mostly with a London office option; £75k–£90k.

75K – 90K £

Full Stack Developer JavaScript Vue.js C# .Net

API AWS Cloud C# .NET +7 skills

Senior hands-on full stack developer at a global financial services company rebuilding its international payments platform. Focus is the Vue.js frontend with C# .NET backend work (~70/30), owning features end-to-end, leading technical decisions, and improving reliability in a microservices/AWS environment.

up to 85K £

yesterday

Full Stack Engineer C# TypeScript - AI Start-up

Agentic AI AI Azure CI/CD Claude Code +5 skills

Full stack engineer at an AI start-up building scalable SaaS products with C#, TypeScript, and Azure, using AI coding tools (Cursor, Claude) to ship MVPs fast. Day to day you own features end to end — design, CI/CD, testing, production — and work with the CTO to shape the product backlog.

up to 120K £

Full Stack Engineer C# TypeScript - AI Start-up

Agentic AI AI Azure CI/CD Claude Code +5 skills

Full stack engineer at a bank-funded AI start-up incubator in London, building SaaS products from rapid, design-led MVPs using C#, TypeScript and Azure, while directing AI coding tools (Cursor, Claude Code) and owning CI/CD, testing and deployments. Hybrid: in the London office Wed/Thu, WFH otherwise.

100K – 120K £

Data engineer in fintech

Airflow AWS Cloud Dagster Data Engineering +11 skills

Senior hands-on Data Engineer at a scaling investment research tech company in London, building and evolving a modern AWS-based data platform. Day to day: designing data pipelines and ingestion workflows, migrating datasets into a unified architecture, and managing/optimising PostgreSQL and time-series (TimescaleDB) databases.

up to 120K £

Founding Software Engineer Python - Start-up

Agentic AI AI API Azure CI/CD +10 skills

Founding full-stack engineer at a fast-growing AI start-up building compliance and operational-efficiency products for the NHS and other regulated industries. You own architecture through deployment, working mainly in Python and TypeScript with FastAPI, React, LLM/agentic AI, and CI/CD on Azure.

100K – 115K £

NewBe an early applicant UKLead

Lead Backend Engineer - Technologist

API AWS Azure CI/CD Cloud +16 skills

Lead Backend Engineer at a scaling FinTech consultancy in central Newcastle (onsite, Mon-Fri): designing APIs and microservices, overseeing secure server environments, gathering client requirements, and mentoring the team. Broad tech stack including Python, TypeScript, C#/.NET, REST APIs, PostgreSQL, CI/CD and AWS/Azure/GCP; salary to £130k plus bonus.

up to 130K £

NewBe an early applicant HybridUKSenior

Senior Python Developer / Consultant SaaS

AWS CDK Cloud DevOps FastAPI +3 skills

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.

up to 80K £

Full Stack Developer JavaScript Vue.js C# .Net

API AWS Cloud C# .NET +8 skills

Senior hands-on full-stack developer at a global financial services company rebuilding its international payments platform in the Corporate Payments division. You own features end-to-end — roughly 70% Vue.js frontend, 30% C#/.NET backend/API work — plus architecture decisions, mentoring, and improving reliability and observability. Hybrid: WFH most days, two days a week in Bracknell.

up to 85K £

NewBe an early applicant HybridEurope

4 days ago

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

Spain

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