Senior Full Stack Developer (C# + React)
Senior Full Stack Developer (C# + React)

Senior Full Stack Developer (C# + React)

Full-Time 36000 - 60000 £ / year (est.) No home office possible
Grid Dynamics Holdings

At a Glance

  • Tasks: Join a team modernising a core trading platform using C#, Python, and React.
  • Company: Grid Dynamics, a leader in tech consulting and product engineering.
  • Benefits: Competitive salary, flexible schedule, and professional development opportunities.
  • Why this job: Work on cutting-edge projects that make a real impact in finance.
  • Qualifications: Strong C# skills and a willingness to learn Python and React.
  • Other info: Dynamic team environment with global collaboration and growth potential.

The predicted salary is between 36000 - 60000 £ per year.

We are seeking a versatile Senior Full-Stack Engineer to join a high-visibility Flow Modernization initiative within a premier global investment bank. This is a front-office engineering role at the heart of the Equity Derivatives business, focused on rebuilding and modernizing a core Pricing and Booking platform used daily by Traders and Sales teams. You will play a pivotal role in transitioning a legacy C# desktop suite into a high-performance, real-time ecosystem powered by Python, React, and OpenShift.

Essential functions

  • Hybrid Development: Balance high-impact C# engineering on the existing platform with the greenfield rebuild of components in Python and React.
  • Modernize Architecture: Transition batch-pricing systems into low-latency, real-time web clients capable of handling complex event-driven workflows.
  • Full-Stack Ownership: Develop performant Python backends and modern React/TypeScript frontends that integrate seamlessly with Java-based market data services.
  • Performance Engineering: Build scalable, reliable services designed for the high-pressure environment of a global trading floor.

Qualifications

  • Strong background in C# engineering is essential for managing the current core application.
  • Highly desirable experience building modern web applications, ideally using React and TypeScript.
  • A strong willingness (and ideally experience) to pick up Python for backend modernization and event-driven services.
  • Familiarity with MongoDB and containerized deployments via OpenShift (or similar).
  • Ability to thrive in a globally distributed team (London/US) with frequent context switching between legacy maintenance and new feature development.

Would be a plus

  • Experience building backend services using messaging, reactive extensions, or multi-threading for performant streaming analytics.

We offer

  • Opportunity to work on bleeding-edge projects
  • Work with a highly motivated and dedicated team
  • Competitive salary
  • Flexible schedule
  • Professional development opportunities
  • Well-equipped office

About us

Grid Dynamics (NASDAQ: GDYN) is a leading provider of technology consulting, platform and product engineering, AI, and advanced analytics services. Fusing technical vision with business acumen, we solve the most pressing technical challenges and enable positive business outcomes for enterprise companies undergoing business transformation. A key differentiator for Grid Dynamics is our 8 years of experience and leadership in enterprise AI, supported by profound expertise and ongoing investment in data, analytics, cloud & DevOps, application modernization and customer experience. Founded in 2006, Grid Dynamics is headquartered in Silicon Valley with offices across the Americas, Europe, and India.

Senior Full Stack Developer (C# + React) employer: Grid Dynamics Holdings

Grid Dynamics is an exceptional employer, offering a dynamic work environment where innovation thrives. As a Senior Full Stack Developer, you will engage in cutting-edge projects within a collaborative team, benefiting from a competitive salary, flexible schedules, and ample professional development opportunities. Located in a well-equipped office, you will be part of a global leader in technology consulting, driving impactful change in the financial sector.
Grid Dynamics Holdings

Contact Detail:

Grid Dynamics Holdings Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Full Stack Developer (C# + React)

✨Tip Number 1

Network like a pro! Reach out to your connections in the industry, attend meetups, and engage with online communities. You never know who might have the inside scoop on job openings or can refer you directly.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving C#, React, and Python. This will give potential employers a taste of what you can do and set you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on both technical and soft skills. Practice coding challenges and be ready to discuss your past experiences. Remember, they want to see how you think and solve problems!

✨Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets noticed. Plus, we love seeing candidates who are proactive about their job search.

We think you need these skills to ace Senior Full Stack Developer (C# + React)

C#
React
TypeScript
Python
OpenShift
MongoDB
Performance Engineering
Event-Driven Architecture
Full-Stack Development
Scalable Services
Real-Time Web Clients
Complex Event-Driven Workflows
Messaging
Multi-Threading

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with C#, React, and any relevant projects. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re excited about this opportunity and how your background makes you a perfect fit for our team. Keep it engaging and personal.

Showcase Your Projects: If you've worked on any cool projects, especially those involving Python or modern web applications, make sure to mention them. We love seeing real examples of your work and how you tackle challenges.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it’s super easy!

How to prepare for a job interview at Grid Dynamics Holdings

✨Know Your Tech Stack

Make sure you’re well-versed in C#, React, and Python. Brush up on your knowledge of TypeScript and MongoDB too. Be ready to discuss how you've used these technologies in past projects, especially in high-pressure environments like trading floors.

✨Showcase Your Problem-Solving Skills

Prepare to share specific examples of how you've tackled complex engineering challenges. Think about times when you had to modernise legacy systems or improve performance under tight deadlines. This will demonstrate your ability to thrive in a fast-paced setting.

✨Understand the Business Context

Familiarise yourself with the Equity Derivatives business and how technology impacts trading decisions. Showing that you understand the financial implications of your work can set you apart from other candidates.

✨Ask Insightful Questions

Prepare thoughtful questions about the team dynamics, project goals, and the company’s approach to modernisation. This not only shows your interest but also helps you gauge if the role is the right fit for you.

Senior Full Stack Developer (C# + React)
Grid Dynamics Holdings

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