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Posted 06 August, 2026

Full Stack Engineer

Randstad Digital
City of London, ENG, GB Full Time

Job Description

Role: Senior Full Stack Engineer – Investment Banking

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Location: London (3 Days Hybrid / 2 Days Remote)

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Type: Permanent / Full-Time

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Experience: 5–7 Years

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Overview

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An opportunity to join a global investment bank, designing and scaling cloud-native applications within the risk management space. You will drive end-to-end development using modern Java, Kotlin, React, and cloud technologies while working alongside cross-functional engineering teams.

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Mandatory Skills

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  • Core Tech: Java, Kotlin, React, AWS Lambda, Kubernetes
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Key Responsibilities

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  • Architecture & Development: Build performant frontend and backend systems using Java, Kotlin, ReactJS, and modern state management tools (Redux/Context API).
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  • API & Event Integration: Design RESTful APIs, gRPC services, and event-driven architectures leveraging Kafka and Flink for real-time data processing.
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  • Cloud & DevOps: Deploy and maintain cloud-native applications on AWS and Kubernetes while supporting automated CI/CD pipelines.
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  • Technical Leadership: Mentor junior engineers, enforce clean code standards, and drive performance optimizations.
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  • Domain Alignment: Apply investment banking and risk management knowledge to translate business requirements into technical solutions.
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Technical Requirements

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  • Backend: Core Java, Kotlin, Multithreading, Algorithms, Data Structures, RESTful APIs, gRPC
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  • Frontend: ReactJS, JavaScript, TypeScript, Redux/Context API, HTML5, CSS3
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  • Cloud & Streaming: AWS (Lambda), Kubernetes, Kafka, Flink
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Process & Security: CI/CD, Agile/Scrum methodologies, security compliance standards