11 of 11 Client/Server Jobs in the City of London

native Android applications. Proficient in Kotlin (and familiar with Java), with a solid grasp of Android fundamentals and app lifecycle. Comfortable working with REST / GraphQL APIs, client / server patterns, and modern Android tooling (e.g., Jetpack, Compose). Intentional about building high‐quality … experiences. Thoughtful about using AI‐powered coding and productivity tools Preferred Qualifications: Experience using Jetpack libraries and modern Android tooling (e.g., Jetpack Compose, Coroutines / Flows, Android Studio, Gradle) to build scalable, testable architectures. Awareness of performance and reliability considerations on mobile (app start, scrolling performance, memory, battery ...

applications. Proficient in Swift, SwiftUI and familiar with common iOS patterns (e.g., MVC, MVVM, MVI) and Apple’s tooling. Comfortable working with REST / GraphQL APIs, client / server architectures, and modern iOS development practices. Intentional about building high‐quality, performant, and accessible … offline behaviour) and common architectural patterns. Awareness of performance and reliability considerations on mobile (app start, scrolling performance, memory, battery) and experience using profiling / monitoring tools to diagnose and fix issues. Comfortable defining and implementing test strategies (unit, UI, snapshot, and integration tests) Awareness of accessibility and inclusive ...

Backend Software Engineer / Developer (Java AWS Kafka) London / WFH to £140k Are you a Java technologist with Futures trading systems experience? You could be progressing your career, in a senior, impactful role at a global, cloud-native, prime broker that is replacing the legacy infrastructure used … empowered to implement the latest tech, seeking continual improvement and can build a team around you, progressing to a leadership role. Location / WFH: You'll join a small, highly talented and collaborative team in the London, City office three days a week with flexibility to work from home ...

Full Stack Engineer / Developer (Java AWS React) London / WFH to £80k Are you a Java technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start … Lead Engineer, Architect and Product Manager to shape system design, APIs and data models to enable scalable backend logic and clean UI. Location / WFH: You can work from home most of the time, meeting up with colleagues in London; as the company grows there will likely be some ...

C++ Developer / Engineer (C++ Mac Extensions) WFH / London to £80k Do you have C++ coding skills combined with experience of developing Mac Extensions? You could be progressing your career at a rapidly expanding scale-up software house that is developing a highly complex network cyber security … detect hackers, malware, data leakage and other malicious activity. As a C++ Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations. Location / ...

Java Developer / Software Engineer (Spring Boot AWS) London / WFH to £90k Are you a backend focussed Java technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital markets with … coordinating with other developers with the goal of writing software as one, supported to learn and develop your skills by the senior engineer. Location / WFH: You'll join a small, highly talented and collaborative team in the London, City office three days a week with flexibility to work ...

remained unchanged over the past 160 years. The lack of standardisation and digitisation created many problems for this fundamental industry, including reproducibility and cost / time efficiency which cost millions annually. A start-up in London, looking to expand its highly interdisciplinary team of exceptionally talented mechanical engineers, software … rewards. - Able to work alone and as part of a team. - You must be entitled to work in the UK. Desirable - Experience with C / C++ or firmware development. - Experience with GitHub and GitHub actions. - Project management / history of sole responsibility. - Previous start up experience. - Experience ...

Applications Developer We are on the lookout for a versatile, forward-thinking Applications Developer who excels in developing high-performance web, mobile, and client-server applications, and who takes a proactive … approach to technology trends in the legal industry to meet evolving business needs. Salary to £80,000 Hybrid working (4 days in the office / 1 day WFH) 09:30-17:30 (Monday-Friday) £100 monthly employee contribution that can be used for lunch or other expenses Free lunch ...

RESTful architectures and backend–frontend integration Familiarity with modern frontend tooling (TypeScript, CSS frameworks, component-based design) Experience writing tests and working with CI / CD pipelines Comfort working in fast-paced environments with high ownership Nice to have: Experience with containerisation and cloud environments Familiarity with developer tooling … internal platforms Exposure to data-intensive or ML-adjacent workflows Experience working with databases (SQL and / or NoSQL ...

Offensive Security Tester (Red Team) London / WFH to £70k Opportunity to progress your career as an Offensive Security Tester at a rapidly expanding scale-up software house that is developing a highly complex network cyber security platform; you'll be working on Greenfield projects, collaborating with and learning … Team testing to try anything and everything to outmanoeuvre the defenders and gain access to customer networks. WFH Policy: There's a remote interview / onboarding process and the ability to work from home for the majority of the time with only occasional visits to the London, City offices ...