Lead Software Engineer

ROLE PROFILE

Workspace Digital Journeys is on a mission to deliver an exceptional customer experience for LSEG Workspace users, offering best-in-class migration, onboarding, learning, and support experiences. LSEG Workspace is our flagship financial platform - a Desktop, Web, and Mobile SaaS solution providing unparalleled insights across the full breadth of LSEG data.

We are looking for a highly skilled and motivated Lead Software Engineer to join the Workspace team in Bucharest. In this Agile, cross‑functional environment, you’ll collaborate with front‑end, back‑end, and quality engineers to build impactful capabilities across the customer digital journey.

Our team accelerates business innovation by creating reusable solutions that handle upgrade workflows and enable safe, gradual feature rollouts across user segments. This role focuses on redefining our existing .NET/on‑prem platform into a modern, cloud‑based stack. Responsibilities include developing the Upgrade Advisor front‑end, AWS/Azure back‑end services, and in‑product APIs that empower customer self‑service.

The ideal candidate brings strong proficiency in JavaScript, Node.js, and TypeScript, practical experience with .NET/C#/WebAPI, and deep knowledge of cloud platforms. Success in this role requires a proven track record to deliver scalable, efficient, and resilient software solutions.

REQUIRED QUALIFICATIONS

• 7+ years of professional experience in software development

• Proficiency in Node.js, JavaScript, and TypeScript (future stack)

• Proficiency in .NET/C#/WebAPI (legacy stack)

• Strong expertise in cloud platforms, including AWS (e.g. ECS, Lambda, S3, DynamoDB) and Azure (e.g. App Services, Azure Functions, Cosmos DB)

• Experience with containerisation tools like Docker

• In-depth knowledge of RESTful API design and micro-services architecture

• Experience with CI/CD pipelines and DevOps practices

KEY RESPONSIBILITIES

Software Development

• Design, develop, and maintain back-end systems using Node.js, ensuring scalability, security, and high performance

• Write clean, efficient, and well-documented code

• Conduct code reviews and establish standard processes for software development

System Design and Architecture

• Architect, deploy, and run applications on AWS and Azure platforms

• Optimise cloud infrastructure for cost-efficiency and performance

• Lead architectural decisions for back-end systems, ensuring alignment with business goals and technical requirements

• Collaborate with Product, Design, DevOps to build end-to-end solutions

• Identify and resolve performance bottlenecks and system issues

• Implement robust monitoring and alerting solutions

Project Management

• Participate in sprint planning, task estimation, and roadmap development

• Ensure timely delivery of projects, meeting both technical and business objectives

PREFERRED SKILLS

• Familiarity with front-end frameworks e.g. Angular, React

• Knowledge of security and compliance standards

• Exposure to serverless architecture and event-driven systems

CAREER STAGE

Senior Associate

ABOUT LSEG

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

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.

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.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

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

London Stock Exchange Group (LSEG) Information:

Join us and be part of a team that values innovation, quality, and continuous improvement. If you're ready to take your career to the next level and make a significant impact, we'd love to hear from you.

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.

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.

You will be part of a collaborative and creative culture where we encourage new ideas. We are committed to sustainability across our global business and we are proud to partner with our customers to help them meet their sustainability objectives. Our charity, the LSEG Foundation provides charitable grants to community groups that help people access economic opportunities and build a secure future with financial independence. Colleagues can get involved through fundraising and volunteering.

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

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.