Delta1 Developer

Barclays; Hong Kong; On-site; HKD 480,000 - 720,000; Full time

Job summary

Barclays is hiring a Java Developer to design and develop the Delta1 Algorithmic Trading platform used to execute in‑house trading algorithms across equities and derivatives. You will help build and enhance trading algorithms, supporting regional business strategy within the Delta1 Trading Technology group.

The role requires strong Java expertise, experience with threading, data structures, and design patterns, plus scripting skills in Python or Bash and Linux proficiency.

Qualifications

• Excellent knowledge of Java.
• Excellent knowledge of Java threading.
• Strong understanding of data structures, algorithms and design patterns.
• Proficient scripting with Python, Bash or similar.
• Experience in a Linux environment.
• A degree in Computer Engineering, Computer Science or an equivalent stream.

Responsibilities

• Development and delivery of high‑quality software solutions using industry‑aligned programming languages, frameworks, and tools, ensuring code is scalable, maintainable and optimised for performance.
• Cross‑functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
• Participation in code reviews and architectural decisions to maintain code quality and systemic integrity.
• Support the implementation of new trading algorithms and enhance existing ones while adhering to security and risk controls.

Skills

Java

Java threading

Data structures

Algorithms

Design patterns

Python scripting

Linux

Education

Bachelor's degree in Computer Engineering or Computer Science

Tools

C++

Linux

Job description

Overview

We are seeking a Java Developer to design and develop the Delta1 Algorithmic Trading platform, which executes our in‑house trading algorithms. In this role within Barclays Delta1 Trading Technology, you will help build and enhance trading algorithms across equities and equity derivatives, supporting the delivery of the regional business strategy.

Key Accountabilities / Requirements

• Analyze, design and develop industry‑leading trading systems
• Back‑testing of trading algorithms for reliability & returns
• Participate in code reviews and architectural decisions
• Comfortable working in a fast‑paced environment

Decision-Making and Problem Solving

• Analyzing requirements to find the most appropriate technical solution and creating technical specifications where needed
• Developing pragmatic software solutions as per the requirement specifications
• Participate in code reviews
• Support the implementation of new algorithms and enhance existing ones

Essential Skills / Basic Qualifications

• Excellent knowledge of Java
• Excellent knowledge of threading in Java
• Strong understanding of concepts such as data structures, algorithms and design patterns
• Good scripting skills using Python, Bash or similar
• Experienced working in a Linux environment
• A degree in Computer Engineering, Computer Science or an equivalent stream

Desirable Skills / Preferred Qualifications

• Experience working in an Investment Bank
• Experience in Algo Development is a plus
• Experience in C++ Development is a plus
• Advanced knowledge of Linux
• Knowledge of computer networks, computer architecture, and operating systems
• Familiarity with Agile software development methodology

Accountabilities

• Development and delivery of high‑quality software solutions using industry‑aligned programming languages, frameworks, and tools. Ensuring that the code is scalable, maintainable, and optimised for performance.
• Cross‑functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives.
• Collaboration with peers, participation in code reviews, and promotion of a culture of code quality and knowledge sharing.
• Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth.
• Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions.
• Implementation of effective unit testing practices to ensure proper code design, readability, and reliability.

Analyst Expectations

• To perform prescribed activities in a timely manner and to a high standard consistently driving continuous improvement.
• Requires in depth technical knowledge and experience in their assigned area of expertise.
• Thorough understanding of the underlying principles and concepts within the area of expertise.
• They lead and supervise a team, guiding and supporting professional development, allocating work requirements and coordinating team resources.
• For an individual contributor, they develop technical expertise in the work area, acting as an advisor where appropriate.
• Will have an impact on the work of related teams within the area.
• Partner with other functions and business areas.
• Takes responsibility for end results of a team’s operational processing and activities.
• Escalates breaches of policies / procedure appropriately.
• Take responsibility for embedding new policies/ procedures adopted due to risk mitigation.
• Advise and influence decision making within own area of expertise.
• Take ownership for managing risk and strengthening controls in relation to the work you own or contribute to. Deliver your work and areas of responsibility in line with relevant rules, regulation and codes of conduct.
• Maintain and continually build an understanding of how own sub‑function integrates with function, alongside knowledge of the organisation’s products, services and processes within the function.
• Demonstrate understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub‑function.
• Make evaluative judgements based on the analysis of factual information, paying attention to detail.
• Resolve problems by identifying and selecting solutions through the application of acquired technical experience and will be guided by precedents.
• Guide and persuade team members and communicate complex / sensitive information.
• Act as contact point for stakeholders outside of the immediate function, while building a network of contacts outside team and external to the organisation.