Overview
We are seeking a Solutions Architect to lead a diverse portfolio of initiatives across the FTSE Russell Index platform estate, including operational risk remediation, regulatory compliance, resiliency improvements, and platform modernization.
This role requires a hands-on architect who can work effectively within complex, highly interconnected legacy systems, while driving pragmatic, incremental improvements in architecture, scalability, and operational efficiency.
You will balance run and change, ensuring stability of critical platforms while enabling transformation aligned to business and risk priorities.
You will act as a strategic thought partner across Product, Operations, and Engineering:
- Product Partnership: Collaborate closely with Product teams to shape solutions that balance business value, scope, cost, and timelines, while maintaining high standards of quality and technical integrity. Contribute actively to solution design and drive pragmatic decision-making.
- Operations Partnership: Partner with Operations to ensure platforms are scalable, resilient, and operationally efficient, embedding operational excellence, risk awareness, and supportability into all solutions.
- Engineering Partnership: Work with the wider engineering organization to ensure solutions are fit-for-purpose, delivered efficiently, and aligned to architectural standards. Proactively identify risks, anticipate delivery challenges, and mobilize the right teams and approaches to resolve them.
Key Responsibilities
- 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.
Technology Environment
- Cloud: AWS (EC2, Lambda, Glue, EKS, S3, SQS, SNS)
- Backend: Python, Java / C# (.NET), APIs, microservices
- Frontend: Angular
- Data: SQL Server, PostgreSQL, ETL pipelines, data lake patterns
- Architecture: Event-driven systems, microservices, API-first design
- DevOps: CI/CD (GitHub Actions, Jenkins), Terraform, containerization (Docker/Kubernetes)
- Orchestration: Airflow, Step Functions, BPM tools
- Observability (desirable): Grafana
- AI (desirable): AI/ML or GenAI adoption for automation and operational efficiency
Experience & Skills
- 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
What We’re Looking For
- Hands-on mindset – willing to dive into technical detail when needed
- Ability to balance ideal architecture with real-world constraints
- Strong risk-aware and control-focused thinking
- Excellent stakeholder management and communication skills
- Pragmatic, solutions-oriented approach to complex problems
- Curiosity and interest in modern technologies, including AI-driven capabilities
Nice to Have
- Experience in financial markets, index/benchmark platforms, or market data
- Exposure to BPM/workflow automation tools
Career Stage
Manager
About LSEG
London Stock Exchange Group (LSEG) information: Join us and be part of a team that values innovation, quality, and continuous improvement. LSEG is a leading global financial markets infrastructure and data provider with a mission to drive financial stability, empower economies, and enable customers to create sustainable growth.
We are proud to be an equal opportunities employer and do not discriminate based on 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 by law. We aim to accommodate religious practices and beliefs, and mental health or disability needs as required by law.
Our culture values collaboration, creativity, and sustainability. We offer tailored benefits and opportunities for volunteering and community involvement. Please read our privacy notice carefully to understand how personal information is collected and used. If you are submitting as a Recruitment Agency Partner, please ensure candidates are aware of this privacy notice.
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