πŸ“
Bengaluru, India

Application Engineer

3 years experience
Finance
Software engineering
Posted:
December 28, 2025

LSEG

Financial markets infrastructure provider
76.5
Palpable Score
Apply >view company >

ABOUT US:

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LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a dedication to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years. Through a comprehensive suite of trusted financial market infrastructure services – and our open-access model – we provide the flexibility, stability and trust that enable our customers to pursue their ambitions with confidence and clarity.

LSEG is headquartered in the United Kingdom, with significant operations in 65 countries across EMEA, North America, Latin America and Asia Pacific. We employ 25,000 people globally, more than half located in Asia Pacific. LSEG’s ticker symbol is LSEG.

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OUR PEOPLE:

People are at the heart of what we do and drive the success of our business. Our values of Integrity, Partnership, Excellence and Change shape how we think, how we do things and how we help our people fulfil their potential. We embrace diversity and actively seek to attract individuals with unique backgrounds and perspectives. We break down barriers and encourage teamwork, enabling innovation and rapid development of solutions that make a difference. Our workplace generates an enriching and rewarding experience for our people and customers alike. Our vision is to build an inclusive culture in which everyone feels encouraged to fulfil their potential.We know that real personal growth cannot be achieved by simply climbing a career ladder – which is why we encourage and enable a wealth of avenues and interesting opportunities for everyone to broaden and deepen their skills and expertise. As a global organisation spanning 65 countries and one rooted in a culture of growth, opportunity, diversity and innovation, LSEG is a place where everyone can grow, develop and fulfil your potential with meaningful careers.

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ROLE PROFILE

As an Application Engineer, you will be instrumental in building and optimising applications using Retool. You will enhance our capabilities in developing internal tools and client-facing interfaces with speed and efficiency.

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TECH PROFILE/ESSENTIAL SKILLS

β€’ 3-5 years of technical experience.

β€’ 3+ years of hands-on experience with Retool application development.

β€’ Proficient in writing efficient and scalable JavaScript code.

β€’ Solid experience with API integrations and managing databases.

β€’ Good understanding of UI/UX design principles and application performance optimisation.

β€’ Strong problem-solving skills and attention to detail.

β€’ Excellent communication and teamwork abilities.

β€’ Eagerness to learn and adapt in a fast-paced environment.

β€’ Experience with providing technical solutions and supporting documentation.

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PREFERRED SKILLS AND EXPERIENCE

β€’ HTML (Hypertext Markup Language):

Proficiency in HTML is fundamental, as it is the backbone of web content, structuring the elements and layout of web pages.

β€’ CSS (Cascading Style Sheets):

Strong knowledge of CSS is essential for styling web pages, controlling typography, colors, and layouts, and ensuring a visually appealing design.

β€’ JavaScript:

Mastery of JavaScript is crucial for adding interactivity, functionality, and dynamic features to web pages. This includes using libraries like jQuery and modern JavaScript frameworks like React, Angular, or Vue.js.

β€’ Responsive Web design

β€’ CSS Preprocessors:

Familiarity with CSS preprocessors like SASS or LESS enhances CSS maintainability and organization.

β€’ Proficiency in using version control systems like Git for code collaboration, tracking changes, and maintaining codebase integrity.

β€’ Experience with front end frameworks and libraries is often required, depending on the specific role.

β€’ Knowledge of techniques to optimize web page loading times, minimize HTTP requests and reduce resource sizes for improved performance.

β€’ Ensuring that web applications work consistently across different web browsers and platforms, with the ability to debug and address compatibility issues.

β€’ Proficiency in using browser developer tools to debug JavaScript, CSS, and HTML issues and conduct testing for functionality and usability.

β€’ Familiarity Build Tools and Task Runners.

β€’ Integrating with various APIs (Application Programming Interfaces) to fetch and display data from external sources.

β€’ UI/UX Principles:

A basic understanding of UI and UX design principles is essential for collaborating effectively with designers and ensuring a user-friendly interface.

β€’ Problem-Solving:

Strong problem-solving skills are crucial for troubleshooting issues and finding efficient solutions in a dynamic web development environment.

β€’ Ability to work independently and in a team environment.

β€’ Ability to communicate effectively in English with all levels of staff, both orally and written.

β€’ Ability to handle own work and multitask to meet tight deadlines without losing sight of priorities under minimum supervision.

β€’ Highly motivated, self-directed individual with a positive & pro-active demeanor to work.

β€’ Customer and service focused, with determination to meet their needs and expectations.β€’ Be driven and committed to the goals and objectives of the team and organization.

β€’ Experience with JIRA and Confluence

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EDUCATION AND PROFESSIONAL SKILLS

β€’ BE/MS degree in Computer Science, Software Engineering or STEM degree (Desirable).

β€’ Solid English reading/writing capability required.

β€’ Good communication & articulation skills.

β€’ Curious about new technologies and tools, creative thinking and initiative taking.

β€’ Agile related certifications preferable.

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DETAILED RESPONSIBILITIES

β€’ Collaborate with development teams and product managers to conceptualise software solutions using Retool.

β€’ Design and implement highly efficient user interfaces for internal and external applications.

β€’ Write robust JavaScript code to extend Retool's functionalities and integrate with third-party and internal APIs.

β€’ Ensure applications are responsive, performant, and scalable.

β€’ Engage in software testing to guarantee responsiveness and efficiency.

β€’ Troubleshoot, debug and upgrade applications to ensure high availability and reliability.

β€’ Create and maintain technical documentation related to application configuration, design, and deployment strategies.

β€’ Continuously seek to improve applications by exploring new features and capabilities released by Retool.

β€’ Responsible for building and maintaining a relationship with business collaborators and impacted users.

β€’ Proactively identifies, recommends, and implements improvements to the process as it relates to assigned projects.

β€’ Frequently keeps up to date with the latest industry development and technology innovations.

β€’ Flexible in approach, adapting plans and strategies to help manage risks around ambiguity.

β€’ Strategic problem solver with strong intuition for business and well-versed in current technological trends and business concepts.

About the company

LSEG

Company overview
LSEG is a financial markets infrastructure and data company, combining trading venues, clearing and post-trade services, and large-scale market data and analytics products. LSEG serves banks, asset managers, corporates, and public-sector organisations across the trade lifecycle, from pre-trade data through execution, clearing, and risk management. The group includes major businesses such as Data and Analytics, FTSE Russell, FX and other markets, plus post-trade capabilities. LSEG sells products globally, including news, indices, analytics, and workflow tools used by financial services teams.

Locations and presence

LSEG is headquartered in the UK and operates across 65 countries, with major hubs across Asia Pacific, Europe, and North America, including locations like London, New York, Bengaluru, Colombo, Bangkok, Bucharest, and Manila. LSEG uses a hybrid-working approach where team-specific patterns are agreed locally, rather than one fixed global schedule.

Palpable Score

76.5
/ 100
LSEG is one of the clearer large employers for graduates because the company publishes a structured early-careers funnel, runs both graduate and internship programmes, and explains assessment stages in detail. Learning support is well-specified for early talent, including induction, buddies, and development pathways such as e-learning and group projects. The score is held back by mixed public signals on progression speed and limited early-career outcome reporting such as promotion timelines and retention.
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