Lead Frontend Developer .NET

Job title:

Lead Frontend Developer .NET

Company:

London Stock Exchange Group

Job description

ROLE PROFILE:Data Platforms is an exciting collective of teams spanning product and engineering teams. LSEG Data Platforms provides a range of tools and solutions for handling, accessing, and distributing financial data. They offer various platforms, including the LSEG Data Platform, LSEG DataScope Select, and LSEG DataScope Warehouse. These platforms enable users to access both LSEG’s own data and third-party data, with options for real-time, delayed, and historical data delivery.
Role ProfileThe DataScope suite of applications is part of our Pricing and Reference Service business. It is a respected application used in the wider finance industry where clients can download both market data in bulk form or in customized reports. The application has 4k+ external clients who consume financial data to analyse funds and the market position of global industry players.ROLE SUMMARY:In this role, you’ll be joining our Enterprise Data Solutions as a Lead Front End Developer (.NET): serving the entire spectrum of data needs across asset classes, latency and delivery mechanisms including real-time data and news, reference and legal entity data.WORKSTYLE MODELWe know balance is the key, therefore we propose hybrid way of working. You are welcome to work from our brand-new office every day, but you have still an opportunity to stay at home if needed. In this position you can work 4 days a week from home.WHAT YOU’LL BE DOING:

• Implements features, adjusts and supports solutions according to business requirements from product managers.
• Improves technical solutions to make them more stable and maintainable.
• Provides assistance to 2nd and 3rd line support teams to analyze and resolve data and behavioral issues from clients.
• Collaborates with the software development team on application design and development.
• Develops knowledge and understanding of technologies in LSEG and utilises these in their own scope of work, to create a network within the company.
• Adapts existing patterns to develop robust solution and provides strong knowledge on coding.
• Optimizes software by performing maintenance, updates, and upgrades.
• Documents processes and maintaining software development records.
• Keeps up to date with .NET development standards and advancements in application development.
• Build and develops trusting relationships with people at all levels, represents LSEG appropriately. Promotes collaboration between and within teams and communicates complex information clearly to all audiences.

WHAT YOU’LL BRING:Minimum of 4 years’ experience as a .NET/C#; Microsoft .NET certification preferred.

• Enterprise-scale application development experience using Microsoft .NET.
• Practical Experience with all of the following:

– Customer-facing web development
– SOAP/REST API Services
– JSON and XML
– SQL
– Version Control Systems such as Mercurial or Git

• .NET Framework 4.5/4.8 and C#
• ASP.NET and ASP.NET MVC
• Javascript and js-frameworks:
• jQuery
• jQuery UI
• Bootstrap
• KnockoutJs
• d3js
• REST and SOAP API
• Sybase or Microsoft SQL Server (T-SQL, ANSI-SQL)
• Web development: HTTP/HTTPS, AJAX, XML, JSON
• Automated unit testing with nUnit
• Experience with financial market data and/or financial market products.Analysis of business requirements to identify flexible and pragmatic design changes to development and production architecture.
• Strong analytical and problem-solving skills
• Excellent people skills and emotional intelligence.

Nice to Have skills:

• Experience in ElasticSearch and NEST
• Modern development practices – scrum, CI/CD, BDD, automation, Infrastructure as Code.
• ELK (Elastic Search, Logstash, Kibana)
• Financial Market data experience
• Cloud development experience

We are looking for someone who:
Works with colleagues and customers to develop new software applications and update and modify existing applications. The application developer processes users’ needs to customize the software for computer programs, designs prototype applications, implements, and tests source code and fix software applications.
Your duties will primarily revolve around building software by writing code, as well as modifying software to fix errors, adapt it to new hardware, improve its performance, or upgrade interfaces. You will also be involved in system testing and validation procedures, and also working with customers or departments on technical issues including software system design and maintenance.
To be successful in this role, you will need extensive knowledge of programming languages and the software development life-cycle.YOUR PACKAGE WHEN JOINING GDYNIA TEAM:

• Bonus: bonus plan assigned to every position
• Wellbeing: monthly wellness and work-from-home allowance, and employee assistance program
• Lunch card: meal allowance on personal lunch card provided monthly
• Healthcare: private medical care with Medicover, premium package fully covered by employer and life insurance with Generali
• Future: corporate pension plan supported by Fidelity International offering additional 5% of base salary to invest in selected funds, and LSEG Employee Share Purchase plan available
• Reward and Recognition: additional awards and vouchers available for extra achievements
• Referral: Bonus between 8,000 to 10,000 PLN for successful recommendation of a new colleague
• Development: E-learning platforms access with a range of training and certified courses
• LSEG Products: availability to access to real-time economic data through our flagship Workspace platform
• Diversity: Inclusive culture built by colleagues from over 40 countries representing various age, gender, race, and beliefs
• Charity: 2 additional days off for voluntary jobs
• Office: brand new, sustainable office with cafeteria and chillout space. Location 3T Office, Gdynia is less than 200m to PKM station and a walking distance to SKM station. Underground car park with 122 spaces for LSEG employees
• Activities: sport teams and social events to join e.g. weekly yoga classes in the office
• Company events: Annual Summer and Winter Parties for colleagues and Family Day for employees with partners and children

We are proud to be recognised as a Great Place to Work ‘24.Learn more about life and purpose of our company directly from the Gdynia colleagues’ video: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. You will be part of a collaborative and creative culture where we encourage new ideas and are committed to sustainability across our global business. You will experience the critical role we have in helping to re-engineer the financial ecosystem to support and drive sustainable economic growth. Together, we are aiming to achieve this growth by accelerating the just transition to net zero, enabling growth of the green economy and creating inclusive economic opportunity.LSEG offers a range of tailored benefits and support, including healthcare, retirement planning, paid volunteering days and wellbeing initiatives.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.Please take a moment to read this 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, .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.

Expected salary

Location

Gdynia, pomorskie

Job date

Sat, 19 Jul 2025 22:15:52 GMT

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