Senior Developer, Index Support .NET/SQL

LSEG; Greater London; On-site; CAD 90,000 - 120,000; Full time

Job summary

LSEG (London Stock Exchange Group) is seeking a Senior Support Engineer specialized in SQL to lead production support for critical systems within the FTSE Engineering team. You will diagnose and resolve complex database issues across SQL Server, Sybase, and PostgreSQL, collaborating with developers, product owners, and analysts on data-intensive workflows.

The role emphasizes 3rd-line support, cloud familiarity (AWS/Azure), and strong SQL/C#.NET skills to ensure high availability and performance

Qualifications

• 8-10+ years of solid experience in database application support across multiple databases (SQL Server, Sybase, PostgreSQL).
• Extensive experience providing 3rd line support, including diagnosing, solving, and resolving complex technical issues related to database systems and integrations.
• Experience working with data-intensive applications and large datasets.
• Strong SQL skills: debugging queries, stored procedures, triggers, scripts, and performance tuning.
• Proficiency in C#.NET and application development to support database operations.
• Familiarity with cloud services (AWS or Azure) for hosting and managing databases.
• Excellent verbal and written communication for collaboration with diverse stakeholders.

Responsibilities

• Lead and supervise day-to-day production support of critical systems.
• Diagnose, solve, and resolve high-complexity issues beyond first/second line support.
• Collaborate with internal and external teams to understand workflows and data interactions in the Index lifecycle.
• Manage incidents, ensure high availability and performance of database environments.
• Work with AWS/Azure cloud resources for database hosting and scaling.

Skills

3rd line support

SQL

C#.NET

PostgreSQL

SQL Server

Sybase

AWS

Azure

data analysis

communication skills

Tools

SQL Server

Sybase

PostgreSQL

Aurora

Elasticsearch

Job description

LSEG (London Stock Exchange Group) is more than a diversified global financial markets infrastructure and data business. We are dedicated, open-access partners with a commitment to excellence in delivering the services our customers expect from us. With extensive experience, deep knowledge and worldwide presence across financial markets, we enable businesses and economies around the world to fund innovation, manage risk and create jobs. It’s how we’ve contributed to supporting the financial stability and growth of communities and economies globally for more than 300 years.

Key Functions and Responsibilities

As a Senior Support Engineer specializing in SQL within FTSE Engineering, the individual will be expected to lead and supervise day to day activities surrounding production support of critical systems. The candidate must be an authority in diagnosing, solving, and resolving complex technical issues that advance beyond first and second-line support, ensuring the stability and reliability of our production systems.

The ideal candidate will collaborate with other technology teams and business users to deeply understand the complex user journeys, workflows, and data interactions involved in the Index business lifecycle. This understanding is crucial for effectively addressing and resolving high-level technical support issues.

This role works with the FTSE Engineering – 3rd Line Support Manager and will require close collaboration with both internal and external index business collaborators, including Full Stack Developers, Product Owners, Business Analysts, and technology teams. The Senior Support Engineer will also work directly with users and technical teams to manage, diagnose, and resolve technical issues within our key Index Platforms, which embrace innovative technologies and AWS cloud-native architecture.

We are looking for an enthusiastic and hard-working software engineer who is adept in , long-term fixes for database applications across multiple databases (SQL Server, Sybase, PostgreSQL) and possesses solid experience in providing 3rd line support, including incident management, and collaborating closely with business collaborators.

Role Requirements:

• Extensive experience providing 3rd line support, including diagnosing, solving, and resolving complex technical issues related to database systems and integrations, ensuring high availability and performance.
• 8-10+ years of solid experience in database application support across multiple databases (SQL Server, Sybase, PostgreSQL).
• Prior experience working in data-intensive applications, demonstrating a capacity to handle, analyse, and optimize large datasets and complex database structures.
• Solid experience in debugging sophisticated SQL queries, stored procedures, triggers, scripts, cursors, and views, with a focus on SQL code tuning, consolidating views, and supervising database performance metrics.
• Solid experience in C#.NET, showcasing proficiency in programming and application development within .NET frameworks to support database operations and integrations.
• Familiarity with PostgreSQL Aurora, queues, elastic search, indicating a broad understanding of database technologies and the ability to use these tools for improved data processing and search capabilities.
• Good experience with cloud services (AWS or Azure preferred), demonstrating a capability to use cloud-based resources and services for database hosting, scaling, and management.
• Some experience in Business and Technical Analysis, Quality Assurance, Delivery Management, and/or Emerging Technology and Governance, reflecting well-rounded abilities that support project management, quality assurance practices, and the exploration of new technologies.
• Strong verbal and written communication skills, essential for effective collaboration with internal and external collaborators, clear documentation, and the ability to convey complex technical information to non-technical audiences.

If you’re looking for a new challenge where you can stretch and develop your technical skills this could be the opportunity for you. We’d love to hear from you!

Career Stage:

Senior Associate

London 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.

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