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Manager Software Engineer

Scale and maintain a high-availability, secure token service for customer authentication
London
Senior
3 days ago
London Stock Exchange Group

London Stock Exchange Group

Provides global financial markets infrastructure, data, analytics, and trading solutions for capital markets, investment, and risk management.

76 Similar Jobs at London Stock Exchange Group

Senior Engineering Manager

We are seeking a Senior Engineering Manager to join our Customers Identity & Access Management team at LSEG. You will play a pivotal role in maintaining and evolving our custom Secure Token Service, a critically significant component of our infrastructure that underpins secure authentication across to our customers.

This is a rare opportunity to work on a high-performance, low-latency, and highly resilient system at scale, with direct impact on the security and reliability of financial services used globally.

What You'll be doing:

  1. Lead and mentor a team of Senior Developers.
  2. Own and evolve a custom-built application written in Go & Python, deployed in AWS, and crafted for sub-millisecond latency and 99.999% uptime.
  3. Implement and optimize OAuth2 and OpenID Connect flows for secure, scalable authentication.
  4. Collaborate with DevOps and Security teams to ensure robust observability, automated recovery, and zero-downtime deployments via Gitlab pipeline, Terraform and DevSecOps practices.
  5. Drive architectural decisions and mentor engineers in performance tuning, resilient design, and secure coding practices.
  6. Contribute to incident response and postmortems, continuously improving system reliability.

What You'll bring:

  • Experience in managing engineers, with 3+ years in deep expertise in distributed systems.
  • Proven record building low-latency, high-throughput, and fault-tolerant services in cloud-native environments (preferably AWS or Azure).
  • Strong understanding of OAuth2, OpenID Connect, and identity federation protocols.
  • Proficiency in Linux internals, networking, and performance profiling.
  • Experience with infrastructure as code, CI/CD pipelines, and monitoring tools.
  • Passion for clean code, automation, and continuous improvement.
  • Excellent interpersonal skills and a collaborative mentality.

What you'll get in return:

  • At LSEG, we invest in excellence. You'll be part of a high-performing team where your expertise is valued and your impact is visible. We offer:
  • Competitive compensation with performance-based rewards.
  • A flexible hybrid work model that supports work-life balance.
  • Access to cutting-edge tools and infrastructure to do your best work.
  • Opportunities for continuous learning, including certifications, conferences, and internal mobility.
  • A collaborative culture that values technical mastery, ownership, and innovation.
  • The chance to work on a globally critical system that powers secure financial transactions across markets.

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.

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Manager Software Engineer
London
Engineering
About London Stock Exchange Group
Provides global financial markets infrastructure, data, analytics, and trading solutions for capital markets, investment, and risk management.