At a Glance
- Tasks: Design and build scalable microservices and real-time API integrations for a fintech startup.
- Company: Join a hyper-growth fintech startup disrupting the digital treasury landscape.
- Benefits: Competitive salary, flexible work environment, and opportunities for professional growth.
- Other info: Work in a dynamic, greenfield environment with no corporate red tape.
- Why this job: Take ownership of innovative projects and make a real impact in the fintech industry.
- Qualifications: Expertise in C#/.NET, experience with complex data streams, and a passion for engineering.
The predicted salary is between 70000 - 90000 £ per year.
I am exclusively headhunting for a hyper-growth, venture-backed fintech startup that is completely disrupting the cross-border digital treasury and real-time FX landscape. They deploy an AI-powered, real-time capital connectivity platform to multinational corporate treasuries, while white-labeling their infrastructure directly to giant global banks. Following massive revenue growth, we are doubling the London engineering team. This is a pure greenfield engineering environment with zero corporate bureaucracy and high-stakes technical complexity.
The Role
I am looking for a heavy-hitting, backend-focused C# / .NET Software Engineer to take absolute ownership of core transaction infrastructure, multi-bank API connectors, and real-time event-driven pipelines. You will be embedding AI automation into financial workflows, building agentic LLM pipelines for automated data classification, and engineering low-latency transaction normalization engines where millions of pounds in cross-border liquidity are processed under high concurrent load.
Core Responsibilities
- Distributed Architecture: Design and build horizontally scalable microservices and real-time API integrations connecting to global banking rails.
- AI & Automation: Integrate advanced AI/LLM tooling (e.g., Claude Code, OpenAI API) to build intelligent data classification and automated workflow engines.
- High-Concurrency Engineering: Solve complex data correctness challenges, handling multi-bank event streams, exactly-once processing, and retry-backed message pipelines.
- Greenfield Delivery: Write clean, high-performance .NET 8/9 code, driving features from architectural conception to live production.
What We Are Looking For
- The Tech Stack: Deep, production-grade mastery of C# and modern .NET Core / .NET 8+, SQL, and familiarity with AI integration.
- Domain Experience: A proven track record handling complex data streams—ideally within Fintech, FX, Payments, Front-Office Trading, or low-latency infrastructure.
- Architectural Fluency: Event-driven architecture, asynchronous messaging (RabbitMQ/Service Bus), and caching (Redis).
- The Startup Mindset: High technical autonomy and a passion for engineering craftsmanship using modern tools.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Software Engineer (C#/.net) in London
✨Join Local Tech Meetups
Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Discovered MENA or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!
✨Contribute to Open Source Projects
Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Discovered MENA.
✨Tap into Online Developer Communities
Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Discovered MENA.
✨Explore Job Boards Specifically for Tech Roles
Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Discovered MENA that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!
We think you need these skills to ace Senior Software Engineer (C#/.net) in London
Some tips for your application 🫡
Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.
Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Discovered MENA.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Discovered MENA and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!
Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!
How to prepare for a job interview at Discovered MENA
✨Brush Up on Your Coding Skills
For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.
✨Know Your Tools and Frameworks
Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Discovered MENA uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.
✨Showcase Your Projects
Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.
✨Prepare for Behavioural Questions
While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.
