Senior .NET Developer (Multiple Roles)

Senior .NET Developer (Multiple Roles)

Full-Time 60000 - 80000 £ / year (est.) Home office (partial)
Ocho People

At a Glance

  • Tasks: Lead the development of a major trading platform upgrade using modern .NET technologies.
  • Company: Join a global financial services business investing heavily in technology.
  • Benefits: Earn up to £65,000, enjoy hybrid working, and receive 25 days annual leave.
  • Other info: Collaborate with experienced engineers and enjoy clear paths for career growth.
  • Why this job: Make a real impact on a large-scale project while gaining AWS exposure.
  • Qualifications: 5+ years of .NET development experience and strong skills in C# and SQL Server.

The predicted salary is between 60000 - 80000 £ per year.

Senior .NET Developer, Belfast, hybrid working with three days per week in the office. Salary up to £65,000 depending on experience.

Join a major upgrade of a trading platform, working with C#, .NET Core, SQL Server and microservices. Genuine hands-on exposure to AWS, with support towards AWS certifications. Work for a global markets and financial services business investing heavily in its technology estate.

About the Company

Our client is a global markets infrastructure and financial services business, providing trading, technology and data solutions to institutions worldwide. With a substantial international footprint and decades of expertise in financial markets, the business is investing heavily in its technology estate, including a major upgrade of its core trading platform. It is a stable, well-regarded employer with a strong track record of developing engineers technically and supporting career progression.

The Role

This is a rare opportunity to join a senior engineering team at the centre of a major trading platform upgrade, working with modern .NET technologies and cloud infrastructure. You will operate with real autonomy, contributing to architecture decisions alongside experienced engineers and stakeholders across the business. The role suits a developer who enjoys solving complex problems in high performance, low latency systems and wants genuine exposure to AWS as the platform modernises. You will collaborate closely with fellow senior developers, architects and product teams to deliver a platform used across global markets.

Key Responsibilities

  • Lead development of core components within the trading platform upgrade programme
  • Design and build scalable, high performance services using C#, .NET Core and SQL Server
  • Architect microservices that support real time trading workflows
  • Drive adoption of AWS services as part of the platform's cloud migration
  • Mentor junior and mid-level developers across the team
  • Collaborate with architects to define technical standards and best practice
  • Review code and champion quality across the development lifecycle
  • Partner with QA and DevOps to improve deployment pipelines and system reliability
  • Troubleshoot and resolve complex production issues within trading systems
  • Contribute to sprint planning and technical roadmap discussions

What You'll Need

Essential:

  • 5+ years of professional .NET development experience
  • Strong commercial experience with C# and .NET Core
  • Solid experience with SQL Server and relational database design
  • Experience building and maintaining microservices architectures
  • Based in or able to commute to Belfast for hybrid working, three days per week in the office

Desirable / Nice to Have:

  • Exposure to AWS or another major cloud platform
  • Experience within trading, exchange or financial markets technology
  • Interest in pursuing AWS certifications

Why Apply?

  • Salary up to £65,000 depending on experience
  • Hybrid working, three days per week in the Belfast office
  • 25 days annual leave plus bank holidays
  • Pension contribution and annual bonus scheme
  • Direct exposure to AWS, with the business actively supporting AWS certifications
  • Join a genuinely large scale trading platform upgrade, not routine maintenance work
  • Work alongside experienced engineers in a senior, high trust team
  • Clear path for technical growth within a stable, global business

Senior .NET Developer (Multiple Roles) employer: Ocho People

Ocho People is an excellent employer that fosters a dynamic and supportive work culture in Belfast, perfect for those looking to advance their careers in finance. With a commitment to employee growth, we offer study support alongside competitive salaries and benefits, ensuring our team members thrive both professionally and personally in a fast-paced environment.

Ocho People

Contact Details:

Ocho People Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior .NET Developer (Multiple Roles)

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 Ocho People 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 Ocho People.

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 Ocho People.

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 Ocho People 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 .NET Developer (Multiple Roles)

C#
.NET Core
SQL Server
Microservices Architecture
AWS
Cloud Migration
High Performance Systems

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 Ocho People.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Ocho People 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 Ocho People

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 Ocho People 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.