At a Glance
- Tasks: Design and develop key features for business-critical software in a collaborative Agile environment.
- Company: Join a globally recognised financial services firm with a strong tech focus.
- Benefits: Enjoy a hybrid working model, competitive salary, and mentorship opportunities.
- Other info: Opportunity for career growth and influence in a high-performing team.
- Why this job: Make a real impact on complex, real-time systems that support live operations.
- Qualifications: 5+ years of .NET/C# experience and strong problem-solving skills required.
The predicted salary is between 50000 - 65000 £ per year.
Location: Belfast (Hybrid)
Employment Type: Full-Time, Permanent
Seniority: Senior Engineer
Core Stack: .NET (C#), WPF, AWS, SQL
Key Requirement: 5+ years back-end .NET/C# experience essential
Who You'll Work For
Our client is a large, globally operating financial services business with a significant and growing technology function. Their Belfast team works on business-critical software supporting internal operations and an external client base, within a collaborative Agile environment. This is a team that takes engineering seriously, with a strong emphasis on quality, continuous improvement, and scalable delivery.
If you are a .NET engineer who wants genuine ownership and the opportunity to work on complex, real-time systems, this is a strong environment to do it in.
What You'll Be Doing
- As a Senior Back-End Engineer, you will take ownership of the design, development, and delivery of key features across business-critical systems.
- You will work closely with Architects and Principal Engineers to deliver solutions aligned with the broader technical strategy, while championing engineering best practices across the team.
- Collaborate with Architects and Principal Engineers to design and deliver solutions aligned with IT strategy and architectural vision.
- Take end-to-end ownership of feature design, development, and delivery, ensuring quality and timely completion.
- Partner with QA to ensure robust testing practices and consistent delivery of defect-free software.
- Champion engineering best practices including unit testing, code reviews, and maintainable design principles.
- Leverage AI-enabled development tooling to enhance productivity, code quality, and delivery velocity within enterprise governance frameworks.
- Design and deliver solutions meeting both functional and non-functional requirements, including performance, scalability, and resilience.
- Support and mentor junior team members, fostering a collaborative and high-performing environment.
- Contribute to continuous improvement by evaluating and adopting appropriate technologies and methodologies.
- Proactively communicate progress, risks, and dependencies, escalating impediments early.
Your Impact
The software you deliver will support live broking operations and an active external client base. You will be working on distributed, real-time systems where quality and reliability genuinely matter. Your technical contributions and mentorship will raise the standard of delivery across the team, and your ability to challenge design decisions will directly influence the quality of what gets built.
What We're Looking For
Essential- 5+ years of experience as a Senior Software Engineer in a complex, delivery-focused environment.
- Strong expertise in .NET (C#) across modern .NET Framework and .NET Core environments.
- Proven experience developing distributed, real-time systems and designing scalable components.
- Solid experience with relational databases, including MS SQL Server or MySQL, covering schema design and optimisation.
- Proficiency in WPF application development.
- Hands-on experience with event-driven and asynchronous messaging architectures.
- Experience with cloud platforms, preferably AWS, including deployment and management of cloud-based services.
- Strong understanding of CI/CD pipelines, version control (GitHub or GitLab), and package management.
- Working knowledge of Agile methodologies and collaborative delivery across distributed teams.
- Experience delivering proofs of concept to validate technical approaches.
- Demonstrable understanding of AI capabilities and limitations in software engineering, applied responsibly within enterprise governance frameworks.
- Strong problem-solving skills with a proactive, detail-oriented, and delivery-focused mindset.
- Experience within financial services or trading platforms, with an understanding of financial markets.
- Knowledge of the FIX protocol and experience managing FIX connectivity.
- Exposure to Java and/or JavaScript.
- Deeper expertise in AWS, including serverless architectures and microservices.
- Experience with TDD, BDD, or similar practices for defining and validating requirements.
What's In It For You
- Genuine ownership of business-critical software in a real-time, high-stakes environment.
- A collaborative Agile team with strong engineering standards and a culture of continuous improvement.
- Hybrid working model based in Belfast.
- Mentorship opportunities and a clear path for senior engineers to influence technical direction.
- The opportunity to work on complex distributed systems within a large, globally recognised organisation.
If you're interested or have any further questions on the role, please feel free to reach out to Eve Geddis directly on LinkedIn.
Senior .NET Developer employer: Ocho
Join a large, globally operating financial services business in Belfast, where you will thrive in a hybrid working environment that champions collaboration and engineering excellence. With a strong focus on continuous improvement and mentorship, this role offers genuine ownership of complex, real-time systems, providing you with the opportunity to influence technical direction while working alongside a talented team dedicated to delivering high-quality software solutions.
StudySmarter Expert Advice🤫
We think this is how you could land Senior .NET Developer
✨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 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.
✨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.
✨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 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
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.
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 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
✨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 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.
