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Lead Software Engineer (C#/AWS, Cloud)

LSEG

Office

Bangkok

Full Time

Overview

We’re seeking a Lead Software Engineer to join a highly collaborative, multi-functional, agile product development team. This team is responsible for building and conducting critical technology solutions across multiple technical areas on our strategic Application Hosting Platform — a system designed to distribute and host full-stack applications across our technology ecosystem, enabling organizations to deliver software faster and more efficiently.

Refinitiv Application Platform Library (RAPL) and Eikon Library are the Application Metadata backend maintains a comprehensive registry of applications used daily by over 100,000 traders. It serves as the backbone for strategic applications, enabling seamless navigation, enhanced discoverability, and efficient application management—including the capability to deliver specific application versions to end users. Powered by cloud-native technologies, RAPL equips teams to build and operate scalable, resilient applications in modern, dynamic environments.

Main Responsibilities:

As a Lead Software Engineer role, you will be a member of the Application Infrastructure team, leading technical domains of the Refinitiv Application Platform Library (RAPL), Eikon Library development team to improving and maintaining the Applications framework which powers of flagship products Eikon and Refinitiv Workspace, delivery of hybrid cloud solution on clouds and on-premises infrastructure, leading various number of projects and collaborate with hardworking Product Managers, Architects, Software Engineers and Reliability Engineers across the globe.

Scope of Impact:

  • Lead and accountable for straight-forward projects and associated teams.

  • Responsible for handling own time and responsibilities.

  • Participates in complex projects that affect a Business Unit

Planning & Decision Making:

  • Lead priorities to meet timeline; develops plans to meet short-term objectives.

  • Applies a wide range of policies or standards in straightforward situations.

  • Identifies and resolves technical and operational problems.

  • Decisions involve interpretation of data, planning own work, or refining the methods and techniques to be used.

Required Skills:

  • Proficient in maintaining and support back-end infrastructure

  • Experience in Backend Development, Sysadmin and DevOps

  • Strong experience in Cloud Computing Architecture, Serverless Computing, Container Service (AWS, Azure)

  • Shown experience of complex system design, development and partnership in Agile environment

  • Shown Understanding of web applications development and web API standards

  • Shown knowledge of service development, synchronous/asynchronous, long running, concurrency and multithreading

  • Shown good knowledge of C#, Shell Scripts and Databases

  • Familiar with Agile Scrum/Kanban Process, good Communication Skill

  • Experience in automates software delivery process, continuous integration/continuous delivery

Personal Qualities:

  • Enjoys the challenge of solving complex problems with strong analytical and solving skills

  • Self motivation on learning and skilled at drives themselves and empower others

  • Good interpersonal skills, ability to work remotely with other team members and others development teams.

  • Ability to collaborate effectively across geography boundaries, time-zones, cultural differences, etc.

  • Demonstrate multitasking skills in a fast-paced environment.

  • Innovative and looking to industry standards and trends.

LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth.

Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership, Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions.

Working with us means that you will be part of a dynamic organisation of 25,000 people across 65 countries. However, we will value your individuality and enable you to bring your true self to work so you can help enrich our diverse workforce. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.

LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.

We are proud to be an equal opportunities employer. This means that we do not discriminate on the basis of anyone’s race, religion, colour, national origin, gender, sexual orientation, gender identity, gender expression, age, marital status, veteran status, pregnancy or disability, or any other basis protected under applicable law. Conforming with applicable law, we can reasonably accommodate applicants' and employees' religious practices and beliefs, as well as mental health or physical disability needs.

Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.

If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.

Lead Software Engineer (C#/AWS, Cloud)

Office

Bangkok

Full Time

August 15, 2025

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LSEG

LSEG.com

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