Specialist – Software Engineering

Company: United States Digital Space LLC
Apply for the Specialist – Software Engineering
Location: London
Job Description:

Role description

Role: Java & CloudNative

Location: London / Warsaw – 3 days from office

Type: Perm/FTE

Job Summary

Seeking a Specialist with 5 to 7 years of experience in Core Java React and cloud native technologies to design, develop, and maintain scalable applications within the investment banking domain.

Job Description

  • Design and develop robust applications using Core Java, ReactJS and associated frameworks.
  • Utilize multithreading algorithms and data structures to build efficient and scalable solutions.
  • Develop and maintain cloud-native applications leveraging Kubernetes and Amazon AWS services.
  • Implement RESTful APIs and gRPC for seamless backend and frontend integration.
  • Build responsive and user‑friendly UI components using JavaScript, TypeScript, HTML5, CSS3 and state management tools like Redux or Context API.
  • Integrate Kafka for event streaming and real‑time data processing.
  • Utilize Apache Ignite for in‑memory data grid and caching solutions.
  • Collaborate with cross‑functional teams to gather and analyze business requirements within the investment banking and risk domain.
  • Follow best coding practices and ensure code quality through thorough testing.
  • Stay updated with the latest advancements in Java, React, cloud‑native technologies and investment banking trends.
  • Troubleshoot and debug application issues to optimize performance and reliability.
  • Document application design architecture and operational procedures.

Roles and Responsibilities

  • Lead development initiatives within the React, Java and cloud-native technology stack.
  • Design and implement RESTful APIs and gRPC services to ensure smooth integration between frontend and backend systems.
  • Collaborate closely with DevOps teams to support CI/CD pipelines and automate deployments using Kubernetes and AWS.
  • Mentor and provide technical guidance to junior developers on Core Java, ReactJS, Kafka, Apache Ignite and cloud-native best practices.
  • Participate actively in Agile ceremonies including sprint planning, daily standups and retrospectives.
  • Ensure adherence to security compliance standards and best practices in application development.
  • Optimize application performance and scalability based on monitoring and feedback.
  • Troubleshoot and resolve production issues to maintain high system availability.
  • Apply investment banking domain knowledge particularly in risk management to align technical solutions with business needs.

Mandatory Skills

  • AWS Infra Services
  • GCP DevOps
  • Java
  • Kafka

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Posted: June 28th, 2026