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From the employer's careers site First seen 1 Nov 2026

Senior Software & Platform Engineer

The employer hasn't listed a salary.

Apply on London Stock Exchange Group (LSEG)

Description

LSEG is seeking a dynamic and hands-on Senior Software & Platform Engineer to be part of a high-performing engineering team in delivering strategic services for our flagship LSEG Workspace platform.

As a Senior Software & Platform Engineer, you will be a member of the Application Infrastructure team, responsible for building, improving and maintaining the delivery of cloud-native products, applying your expertise in technologies to deliver scalable, reliable, and high-performance solutions.

Responsibilities:

  • Architect and implement backend services using NodeJS, C# and both Azure and AWS cloud infrastructure.
  • Collaborate with multi-functional teams to deliver new features and improvements.
  • Ensure code quality, security, and performance across the application's framework.
  • Participate in code reviews, design discussions, and agile ceremonies.
  • Applying a wide range of policies or standards.
  • Identifying and resolving technical and operational problems.
  • Taking decisions involving interpretation of data, planning your own work, and refining the methods and techniques to be used.

Requirements:

  • Bachelor's or Master's degree in Computer Science, Information Technology, or a related field, with 4–5 years of professional software engineering experience, including back-end development and infrastructure support.
  • Experience in DevOps, system administration, and automating software delivery processes, including CI/CD pipelines and infrastructure-as-code. Terraform experience would be advantageous.
  • Strong experience in Cloud Computing Architecture, Serverless Computing, and Container Services (ideally with both Azure and AWS).
  • Strong technical understanding of modern web application development, web API standards, and Linux; experience with API gateways or web traffic management technologies would be beneficial.
  • Demonstrated knowledge of the design and operation of critical, high-volume distributed systems, including synchronous/asynchronous service patterns, long-running processes, concurrency, and multithreading.
  • Demonstrated experience in complex system design, development, and collaboration in an agile environment.
  • Proficient in one or more programming languages, including .NET (C#), Java, NodeJS/TypeScript, Python, and shell scripts.
  • Experience with both relational and non-relational databases.
  • Experience with load testing operation and analysis, and performance optimisation.

Benefits:

  • 25 days' holiday per year
  • 1 additional day off for your Birthday
  • Annual wellness allowance
  • Share Purchase Plan
  • Medical Health Insurance
  • Medical Subscription (preventive medical services)
  • Life insurance
  • Pillar 3 Private Pension
  • Meal Vouchers
  • Flexible Benefits
  • Bookster
  • Volunteering Events
  • All LSEG colleagues with at least one year's continuous service, who become parents, are now entitled to at least 26 weeks' paid leave, and the option to return to work on a phased basis, in relation with specific company's policy and guidelines

Skills

Required

Ready to apply?

You apply with the employer directly. Their original posting is here: https://lseg.wd3.myworkdayjobs.com/en-US/Careers/job/Bucharest-Romania/Senior-Software-Engineer_R0124069

Apply on London Stock Exchange Group (LSEG)