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Client Server

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42 jobs

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42 jobs Posted Sort

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

Lead C# Developer .Net - FinTech

Hands-on Lead C# Developer role building and leading development of complex, scalable C#/.NET desktop applications for a global fintech. Based in Reigate, Surrey with hybrid working (3 days a week from home), paying up to £100k plus a ~20% bonus.

C# .NET Fintech

Client Server Limited

Backend Software Engineer C++ Python - Trading

UKFull-timeLead

Hands-on backend engineer at a systematic trading firm in London, designing, implementing and optimising C++ and Python components that power proprietary, data-driven trading strategies, collaborating with experienced engineers and quantitative researchers. Office-based Monday-Friday near St James Park; salary up to £125k.

C++ Linux Python

90K – 125K £

Backend Software Engineer C++ Python - Trading

Backend Software Engineer / Developer (C++ Python) London / WFH to £125k Are you a bright, ambitious technologist with strong C++ and Python skills combined with a good understanding of the trade lifecycle? You could…

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

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

Client Server Limited

Lead Full Stack Engineer TypeScript Python API

Lead Full Stack Engineer at a profitable London private equity firm, working at the intersection of tech, data, strategy and investment — leading data diligence and shaping tech/data strategy for portfolio companies. Day to day spans TypeScript and Python development, cloud data platforms (AWS/Azure/GCP) and agentic AI, hybrid with three days a week in the London office.

Agentic AI AI Analytics API AWS +5 skills

100K – 125K £

Client Server Limited

Lead Full Stack Engineer (TypeScript + Python) – Hybrid London

Lead a full stack engineering effort in London, blending hands-on TypeScript and Python API development with strategic leadership of data transformation across a private equity portfolio. Hybrid role with London office presence.

API Python TypeScript

Client Server Limited

Senior React Frontend Lead - Remote-Friendly with Equity

Senior/lead React developer to own the frontend of Client Server's core product — a financial operating system for live events — leading frontend architecture, improving performance and usability, collaborating with product/design, and mentoring juniors. Hybrid role based in London (3-4 office days/week) with equity on offer.

Client Server Limited

React Developer Senior / Lead

Senior/Lead React Developer owning the front end of a scale-up's core product — a financial operating system for live events — leading architecture, staying hands-on with React, integrating payment flows and real-time data, and mentoring junior developers. London-based with WFH flexibility after the first six months.

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

Client Server Limited

Hybrid Lead Java Engineer & Team Architect

Open 18d UKLead

Lead a small development team in Manchester building real-time sports betting applications, blending hands-on Java architecture and coding with mentoring, coaching, and full delivery lifecycle ownership alongside the Product Owner.

Full Stack Engineer / Technical Lead B2B SaaS

Open 18d UKLead

Senior hands-on lead role owning the technical strategy and architecture for a real-time infrastructure company's developer ecosystem: designing APIs and SDKs, expanding client libraries, guiding open-source collaboration and mentoring engineers. Core stack is Ruby, TypeScript and React, with openness to AI tooling like Claude and Cursor.

AI API Automation Design Patterns iOS +5 skills

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

Lead Backend Engineer - Technologist

Open 21d UKLead

Overview In this role you will lead backend engineering to design and implement core application logic, APIs and microservices for data processing and integrations, while ensuring secure, reliable server environments.…

API Api Design AWS Azure Cloud +13 skills

Client Server Limited

Lead Backend Engineer - Technologist

Open 22d 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

Lead Backend Engineer - Python/TypeScript (Onsite, Newcastle)

Open 22d UKLead

A hands-on lead role designing and building core applications and APIs for clients at a FinTech consultancy, based onsite in Newcastle. The engineer oversees secure server environments and architecture while mentoring others, working across Python, TypeScript, and C#.

API C# Fintech Python TypeScript