Our Team
We are evolving our Reliability Engineering team to move beyond support and operations. As a Senior Engineer, you will be part of a diverse and inclusive organization that has full ownership of the availability, performance, and scalability of one of the most critical shared services at LSEG.
Job Summary
The Application Support Engineer (L2) is responsible for providing advanced technical support for business-critical applications. This role handles incident resolution escalated from L1 support, performs root cause analysis, and works closely with development, infrastructure, and business teams to ensure application stability, performance, and availability.
Key Responsibilities
Provide Level 2 support for production and non-production applications
Investigate and resolve application incidents escalated from L1 within SLA
Perform root cause analysis (RCA) and implement preventive fixes
Monitor application health, logs, and system performance
Execute SQL queries or scripts to analyze and fix data-related issues
Support application deployments, releases, and patches
Coordinate with development, DevOps, DB, and infrastructure teams
Document known issues, workarounds, and standard operating procedures (SOPs)
Participate in on-call / shift rotations as required
Assist in problem management and continuous service improvement
Ensure compliance with security, audit, and change management processes
Required Skills & Qualifications
Bachelor’s degree in Computer Science, IT, or related field (or equivalent experience)
5–8 years of experience in Application support or Production support
Strong understanding of application architecture and support processes
Experience with:
Incident, problem, and change management (ITIL-based)
Log analysis and troubleshooting
SQL / database queries (Oracle, MySQL, PostgreSQL, etc.)
Linux/Unix and/or Windows environments
Familiarity with monitoring tools (Bigpanda, Splunk, Datadog etc.)
Good communication and documentation skills
Preferred Skills
Knowledge of cloud platforms (AWS, Azure, GCP)
Experience with middleware (WebLogic, WebSphere, Tomcat, Kafka)
Understanding of APIs, microservices, and batch jobs(Autosys)
Basic scripting (Shell, Python, PowerShell)
ITIL certification
Key Competencies
Strong problem-solving and analytical skills
Ability to work under pressure in production environments
Customer-focused mindset
Effective collaboration across teams
Attention to detail and ownership of issues
Does this sound like a challenge you'd be interested in taking on? Join us!
Career Stage:
Senior AssociateLondon Stock Exchange Group (LSEG) Information:
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.
Please take a moment to read this privacy notice carefully, as it describes what personal information London Stock Exchange Group (LSEG) (we) may hold about you, what it’s used for, and how it’s obtained, your rights and how to contact us as a data subject.
If you are submitting as a Recruitment Agency Partner, it is essential and your responsibility to ensure that candidates applying to LSEG are aware of this privacy notice.
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