Senior Application Architect (Java with AWS)
London Stock Exchange Group20 hours ago
London, United KingdomSenior
Responsibilities
- Produce logical, physical, implementation, process, application, and cloud infrastructure architecture designs.
- Design highly scalable, efficient, secure, performant, and highly available distributed systems.
- Optimize cloud costs through waste identification, automation, and autoscaling.
- Support DevOps teams with CI/CD automation and application teams with governance, privacy, compliance, and risk analysis.
- Lead production issue root-cause analysis and resolution.
- Define domain models, interoperability designs, API and messaging designs, and data models with Solution Architects.
- Develop proofs of concept for handoff to technical leads and development teams.
- Lead and influence architecture standards, communities of practice, and architecture councils.
- Provide technical leadership, training, presentations, and white papers for technical and non-technical audiences.
Requirements
- Significant experience as a software engineer and a consistent record of delivering application and cloud solution architectures.
- Experience architecting highly scalable and efficient distributed systems using open-source tools.
- Extensive experience selecting and implementing cloud services, primarily AWS.
- Detailed understanding of messaging services, cloud patterns, multi-tenancy, sharding, priority queues, throttling, sidecars, and the CAP theorem.
- Hands-on experience with SQL and NoSQL solutions, including MySQL, PostgreSQL, MongoDB, Elasticsearch, and other relational databases.
- Very strong Java skills plus experience with Python, Spring Boot, Node.js, and JavaScript.
- In-depth understanding of HTTP and REST API design, management, and consumption.
- Experience with enterprise integration patterns and authentication methods such as SAML, OIDC, and OAuth 2.0.
- Experience designing large-scale systems that are scalable, extensible, performant, secure, and highly available.
- Strong communication, negotiation, influencing, analytical, and leadership skills across technical and business teams.
- Awareness of GDPR and ISO standards.
- Desired knowledge of risk management, customer and third-party risk, regulatory markets, financial markets, banking, and news.
Benefits
- Healthcare, retirement planning, paid volunteering days, and wellbeing initiatives.
- Collaborative and inclusive workplace with opportunities for innovation, learning, and professional growth.
- Equal-opportunity employer with reasonable accommodations for religious practices, mental health needs, and disabilities.
Tech Stack
Categories
About London Stock Exchange Group
London Stock Exchange Group (LSEG) provides market infrastructure, financial data, and analytics to banks, asset managers, and corporations. Its businesses span capital markets (London Stock Exchange), post-trade clearing (LCH), and information services including FTSE Russell indices and the Refinitiv data platform, funded by transaction fees, subscriptions, and licensing. Headquartered in London and publicly listed on the LSE, the group serves global customers seeking trading, clearing, benchmarks, and enterprise data solutions.