Senior Software Engineer

Senior Software Engineer

London Full-Time 90000 - 100000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead the digitalisation of global financial markets by building resilient systems.
  • Company: Join a global powerhouse in FinTech Infrastructure with a modern engineering culture.
  • Benefits: Competitive salary, performance bonuses, hybrid work model, and top-notch healthcare.
  • Why this job: Make a real impact on financial services while innovating with cutting-edge technology.
  • Qualifications: Expertise in C#, .NET Core, and a strong background in financial services.
  • Other info: Dynamic team environment with opportunities for mentorship and career growth.

The predicted salary is between 90000 - 100000 £ per year.

On behalf of a global powerhouse in FinTech Infrastructure, we are seeking a Senior Software Engineer. Our client operates one of the largest financial networks, serving as the digital backbone for thousands of global financial institutions. This is a senior-tier appointment for an engineer who excels at building resilient, high-concurrency systems and wants to lead the digitalization of global financial markets.

The Technical Stack

  • The Engine: Expert-level C# and .NET Core mastery.
  • Architecture: Deep understanding of SOA (Service Oriented Architecture) and complex Object-Oriented design patterns.
  • System Dynamics: Specialized knowledge of concurrency, asynchrony, and parallelism—essential for real-time transactional processing.
  • Data & Web: High proficiency in SQL Server, Web API design, and modern front-end fundamentals (HTML/CSS/JS).
  • Reliability: A strict practitioner of TDD (Test Driven Development) and robust CI/CD processes.

Desired Innovations

  • Cloud & Orchestration: Azure ecosystems, Docker, and Kubernetes (AKS).
  • Messaging Patterns: Enterprise systems like Azure Service Bus or NServiceBus.
  • Next-Gen Tech: Experience with Blockchain development or Cryptographic concepts is a significant plus.
  • Modern UI: TypeScript and Angular for responsive, data-heavy interfaces.

Your Impact

  • Technical Leadership: You will participate in defining the technology and process strategy, occasionally leading high-level innovation or software design initiatives.
  • Full-Lifecycle Ownership: Design, document, and communicate system solutions that balance high performance with security and cost-effectiveness.
  • Collaboration & Mentorship: Act as a "Technical Enabler," bridging the gap between deep engineering and business-led requirements while mentoring junior talent.
  • Innovation: Drive the modernization of global financial infrastructure, replacing frictional legacy processes with fast, efficient, and scalable digital services.

Who You Are

  • FinTech Professional: You have a deep commercial background in Financial Services, Payments, or Transactional Systems. You understand the stakes of high-volume, regulated data.
  • Team-Centric: You thrive in an Agile environment where team dynamics and peer reviews are taken seriously.
  • Strategic Thinker: You can contextualize your technical work for non-technical stakeholders and have a passion for "big picture" system evolution.

Package & Culture

  • Salary: £90,000-£100,000 per annum + Performance-related Bonus.
  • Flexibility: A balanced Hybrid model out of a state-of-the-art Central London office.
  • Benefits: Industry-leading pension, private healthcare, and a culture that prioritises professional growth.

Senior Software Engineer employer: Retelligence

Join a leading global FinTech powerhouse that champions innovation and technical excellence in the heart of Central London. With a strong emphasis on professional growth, our company offers a dynamic hybrid work model, competitive salary, and exceptional benefits including an industry-leading pension and private healthcare. Here, you will thrive in a collaborative, engineering-first culture that values mentorship and strategic thinking, making it an ideal environment for Senior Software Engineers looking to make a significant impact in modernising financial infrastructure.
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Contact Detail:

Retelligence Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer

✨Network Like a Pro

Get out there and connect with people in the FinTech space! Attend meetups, webinars, or industry events. You never know who might have the inside scoop on job openings or can put in a good word for you.

✨Show Off Your Skills

Don’t just talk about your experience; demonstrate it! Create a portfolio showcasing your projects, especially those involving C#, .NET Core, or any cool tech like Azure or Docker. This will make you stand out when you apply through our website.

✨Ace the Interview

Prepare for technical interviews by brushing up on your coding skills and system design knowledge. Practice common interview questions related to concurrency and TDD. Remember, confidence is key!

✨Follow Up

After an interview, don’t forget to send a thank-you email! It shows your enthusiasm for the role and keeps you fresh in their minds. Plus, it’s a great opportunity to reiterate why you’re the perfect fit for the team.

We think you need these skills to ace Senior Software Engineer

C#
.NET Core
Service Oriented Architecture (SOA)
Object-Oriented Design Patterns
Concurrency
Asynchrony
Parallelism
SQL Server
Web API Design
HTML
CSS
JavaScript
Test Driven Development (TDD)
Continuous Integration/Continuous Deployment (CI/CD)
Azure
Docker
Kubernetes
Azure Service Bus
NServiceBus
Blockchain Development
Cryptographic Concepts
TypeScript
Angular
Agile Methodologies
Technical Leadership
Mentorship

Some tips for your application 🫡

Tailor Your CV: Make sure your CV speaks directly to the job description. Highlight your experience with C#, .NET Core, and any relevant FinTech projects. We want to see how your skills align with what we're looking for!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Share your passion for financial technology and how you can contribute to our mission. Be sure to mention any experience with cloud technologies or modern UI frameworks like Angular.

Showcase Your Technical Skills: Don’t just list your skills—demonstrate them! Include specific examples of projects where you've used TDD, CI/CD, or worked on high-concurrency systems. We love seeing real-world applications of your expertise.

Apply Through Our Website: We encourage you to apply through our website for a smoother process. It helps us keep track of your application and ensures you don’t miss out on any important updates from us!

How to prepare for a job interview at Retelligence

✨Know Your Tech Stack Inside Out

Make sure you’re well-versed in C# and .NET Core, as these are crucial for the role. Brush up on your knowledge of SOA and Object-Oriented design patterns, and be ready to discuss how you've applied these in past projects.

✨Showcase Your Problem-Solving Skills

Prepare to discuss specific examples where you've tackled high-concurrency issues or implemented TDD in your work. Use real-world scenarios to illustrate your thought process and how you approach complex problems.

✨Demonstrate Your Leadership Qualities

Since this is a senior position, be ready to talk about your experience in mentoring junior engineers and leading projects. Highlight any instances where you’ve bridged the gap between technical and non-technical teams.

✨Stay Current with Industry Trends

Familiarise yourself with the latest innovations in FinTech, especially around cloud technologies like Azure and modern UI frameworks like Angular. Showing that you’re proactive about learning can set you apart from other candidates.

Senior Software Engineer
Retelligence
Location: London

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