DataScope Senior Software Engineer (.NET)

Join our Enterprise Data Solutions team as a Software Engineer (.NET) and help shape the future of DataScope—a trusted platform used by thousands of clients to access critical financial data. You’ll work on meaningful projects that support global financial decision-making, collaborating with a diverse, supportive team that values your voice and ideas. You will build and maintain .NET-based applications, improve system performance, and contribute to a culture of continuous learning.

Must Have

• Experience with .NET Framework (4.5/4.8) and C#
• Familiarity with ASP.NET, MVC, and front-end tools like JavaScript, jQuery, Bootstrap, KnockoutJS, and D3.js
• Understanding of REST/SOAP APIs, SQL, and web technologies (AJAX, XML, JSON)
• Strong problem-solving and communication skills
• A team-first attitude and a willingness to learn

Good to Have

• Experience with ElasticSearch, NEST, or the ELK stack
• Exposure to cloud platforms, CI/CD, or Infrastructure as Code
• Background in financial data or enterprise-scale systems

Perks & Benefits

• Bonus plan assigned to every position
• Monthly wellness and work-from-home allowance
• Employee assistance program
• Meal allowance on personal lunch card provided monthly
• Private medical care with Medicover, premium package fully covered by employer
• Life insurance with Generali
• Corporate pension plan supported by Fidelity International offering additional 5% of base salary to invest in selected funds
• LSEG Employee Share Purchase plan available
• Additional awards and vouchers available for extra achievements
• Bonus between 8,000 to 10,000 PLN for successful recommendation of a new colleague
• E-learning platforms access with a range of training and certified courses
• Availability to access to real-time economic data through our flagship Workspace platform
• Inclusive culture built by colleagues from over 40 countries representing various age, gender, race, and beliefs
• 2 additional days off for voluntary jobs
• Brand new, sustainable office with cafeteria and chillout space
• Sport teams and social events to join e.g. weekly yoga classes in the office
• Annual Summer and Winter Parties for colleagues and Family Day for employees with partners and children

Role profile:

Join our Enterprise Data Solutions team as a Software Engineer (.NET) and help shape the future of DataScope—a trusted platform used by thousands of clients to access critical financial data.

WORKSTYLE MODEL

We 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:

You’ll work on meaningful projects that support global financial decision-making, collaborating with a diverse, supportive team that values your voice and ideas.

• Build and maintain .NET-based applications that deliver high-quality financial data.
• Collaborate with product managers, designers, and engineers to create inclusive, user-friendly solutions.
• Improve system performance, scalability, and reliability.
• Support production systems and troubleshoot issues with empathy and care.
• Contribute to a culture of continuous learning and innovation.

WHAT YOU'LL BRING:

We’re looking for someone who is collaborative, curious, and committed to making a difference. You don’t need to check every box—your unique perspective matters.

Core Skills:

• Experience with .NET Framework (4.5/4.8) and C#
• Familiarity with ASP.NET, MVC, and front-end tools like JavaScript, jQuery, Bootstrap, KnockoutJS, and D3.js
• Understanding of REST/SOAP APIs, SQL, and web technologies (AJAX, XML, JSON)
• Strong problem-solving and communication skills
• A team-first attitude and a willingness to learn

Bonus Skills (Nice to Have):

• Experience with ElasticSearch, NEST, or the ELK stack
• Exposure to cloud platforms, CI/CD, or Infrastructure as Code
• Background in financial data or enterprise-scale systems

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: https://www.lseg.com/en/careers/where-we-work/gdynia-poland

Follow us on Facebook, Carers at LSEG Gdynia

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.