Senior Solutions Architect

LSEG (London Stock Exchange Group)

Solutions Architect at London Stock Exchange Group driving operational risk remediation and platform modernization. Collaborating across teams to deliver scalable and resilient solutions in complex environments.

Posted 4/25/2026full-timeLondon • 🇬🇧 United KingdomSeniorWebsite

Tech Stack

Tools & technologies

AngularAWSETLJavaMicroservices.NETPythonSQL

About the role

Key responsibilities & impact

Design and deliver scalable, resilient solutions across legacy and modern platforms.
Lead architecture for risk, regulatory, and resilience-driven initiatives.
Navigate and simplify complex (“spaghetti”) system landscapes while maintaining stability.
Define target architectures and transition roadmaps, making pragmatic trade-offs.
Act as a hands-on technical leader—review designs, support implementation, and build PoCs.
Drive data-intensive and calculation-heavy system design, including ETL and processing pipelines.
Ensure alignment with enterprise architecture, security standards, and governance.
Partner with Engineering, Operations, Risk, and Product teams to deliver end-to-end solutions.
Represent the domain in architecture forums and influence strategic decisions.
Mentor engineers and uplift engineering and architectural practices.

Requirements

What you’ll need

Proven experience as a Solutions Architect / Senior Technical Lead in complex enterprise environments.
Strong track record working with legacy systems and distributed architectures.
Deep expertise in AWS, data platforms, and microservices architecture.
Strong development background in SQL, Python, Java or C# (.NET), and Angular.
Experience designing highly resilient, scalable, and secure systems.
Strong understanding of risk management, controls, and regulatory environments.
Experience operating in matrix organizations with multiple stakeholders.
Experience with AI/ML or intelligent automation use cases.

Benefits

Comp & perks

Healthcare
Retirement planning
Paid volunteering days
Wellbeing initiatives

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

AWSSQLPythonJavaC#AngularETLmicroservices architecturedata platformsresilient systems design

Soft Skills

technical leadershipmentoringcollaborationinfluencingproblem-solvingcommunicationstakeholder managementpragmatic decision-makingorganizational skillsadaptability