Senior Software Engineer in Belfast

Senior Software Engineer in Belfast

Belfast Full-Time 60000 - 75000 £ / year (est.) Home office (partial)
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At a Glance

  • Tasks: Build AI-powered products from scratch and rapidly prototype features.
  • Company: Join a hyper-growth SaaS company on an exciting AI journey.
  • Benefits: Salary up to £75k, flexible remote work, and career growth.
  • Why this job: Shape the future of AI technology and make a real impact.
  • Qualifications: Full stack experience with AI tools and strong engineering practices.
  • Other info: Dynamic team environment with opportunities to innovate and lead.

The predicted salary is between 60000 - 75000 £ per year.

Location: Belfast (2 days per week meetups, rest of the time WFH)

Salary: to £75k

The team at MRJ have partnered exclusively with a hyper growth SaaS company who have embarked on an exciting new AI first journey as they look to grow their global market share. If you’re excited by building AI-powered products from zero to one, rapidly prototyping and scaling; working hands-on with Claude, GPT and other LLMs to build intelligent products; and developing MVPs at pace, this is the role for you.

As a founding Senior Engineer within this new AI R&D venture, you’ll join a high-performing engineering team that is being built from scratch to create innovative AI and LLM products from the ground up. We move fast, build lean, and iterate quickly. If you love solving real problems, experimenting, and shipping impactful products, this one’s for you.

We are looking for a Senior Full Stack Engineer who embraces an AI-first mindset. You understand that tools like Claude, GitHub Copilot, and Cursor aren’t just essential to high-velocity delivery and will enable you to make a great impact in your day-to-day responsibilities which may include:

  • Rapid Prototyping & Delivery: Leverage AI tools to brainstorm, scaffold, and ship production-ready features in days, not months.
  • System Architecture: Design scalable systems that integrate AI capabilities seamlessly into our core product.
  • Strategic Engineering: Spend less time on boilerplate and more time solving the "hard" problems: security, architecture, and user experience.
  • Lead by Example: Help to drive the new team on how to integrate AI workflows into their daily coding habits to 10x our collective output.

We’re looking for a Senior Engineer, who thrives on building end-to-end features in a fraction of the traditional time. You’re an Engineer who’s passionate about engineering excellence, someone who cares deeply about building the right thing and building it the right way. You’ll champion strong engineering practices, from clean design and thoughtful architecture to automated testing and high-quality delivery. This role is for an engineer who takes pride in well-crafted code, values collaboration, and enjoys raising the bar for themselves and the teams around them.

Technology experience summary:

  • The AI Mindset: You are an expert at prompting and utilizing AI tools such as Cursor, Claude Code, Anthropic models, Llama models and OpenAI to accelerate your coding, debugging, and documentation.
  • Full Stack Mastery: A true 50/50 split of front and back end experience utilising a mixture of technologies such as TypeScript, React, .net Core, Python etc.
  • Cloud Native: Hands-on experience with Azure or AWS is essential.
  • Pragmatism: You value "done" over "perfect" but understand when technical debt needs to be addressed.
  • Mission-Driven: You want your code to do more than just generate revenue; you want it to change lives.

Opportunities like this don’t come around every day! If you’re excited by building from scratch, love shipping fast, and want to shape the future of a super exciting company, we’d love to talk. Apply today with your CV or LinkedIn profile and the team will be in touch.

Does your CV stand out? Does it highlight the AI tools you are using daily? Does it have your personal projects highlighted? If not, add them today!

Senior Software Engineer in Belfast employer: MRJ Recruitment

At MRJ, we pride ourselves on being an exceptional employer, offering a dynamic work culture that fosters innovation and collaboration. As a Senior Software Engineer in our AI R&D venture based in Belfast, you'll enjoy the flexibility of working from home most of the week while engaging in exciting meetups with a high-performing team. With a strong focus on employee growth, we provide opportunities to lead cutting-edge projects and leverage the latest AI technologies, ensuring your contributions make a meaningful impact in shaping the future of our products.
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Contact Detail:

MRJ Recruitment Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Engineer in Belfast

✨Tip Number 1

Get your hands dirty with AI tools! When you’re chatting with potential employers, make sure to highlight your experience with tools like Claude and GitHub Copilot. Show them how you’ve used these to speed up your projects and deliver results.

✨Tip Number 2

Don’t just talk about your skills; demonstrate them! If you’ve built any personal projects or MVPs, be ready to share them during interviews. This is your chance to showcase your full stack mastery and how you tackle real-world problems.

✨Tip Number 3

Network like a pro! Connect with other engineers and industry professionals on platforms like LinkedIn. Join discussions about AI and software engineering to get your name out there and learn about hidden job opportunities.

✨Tip Number 4

Apply through our website! We’re all about making the application process smooth and straightforward. Plus, it shows you’re genuinely interested in joining our team. Don’t miss out on this exciting opportunity!

We think you need these skills to ace Senior Software Engineer in Belfast

AI Tools Proficiency
Full Stack Development
TypeScript
React
.NET Core
Python
Cloud Computing (Azure or AWS)
System Architecture
Rapid Prototyping
Automated Testing
Collaboration
Problem-Solving
Engineering Excellence
Technical Debt Management
User Experience Design

Some tips for your application 🫡

Show Off Your AI Skills: Make sure your CV highlights your experience with AI tools like Claude and Cursor. We want to see how you've used these in your projects, so don’t hold back!

Tailor Your CV: Customise your CV to reflect the job description. Use keywords from the posting to show that you’re a perfect fit for the Senior Software Engineer role. It helps us see how you align with our needs!

Highlight Your Projects: Include personal projects that showcase your full stack mastery and AI mindset. We love seeing what you’ve built and how you approach problem-solving, so let your creativity shine!

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 don’t miss out on any updates from our team!

How to prepare for a job interview at MRJ Recruitment

✨Showcase Your AI Expertise

Make sure to highlight your experience with AI tools like Claude, Cursor, and other LLMs during the interview. Be ready to discuss specific projects where you've used these technologies to solve problems or improve processes.

✨Demonstrate Full Stack Mastery

Prepare to talk about your experience in both front-end and back-end development. Bring examples of projects where you’ve successfully integrated various technologies like TypeScript, React, .NET Core, and Python to create seamless applications.

✨Emphasise Rapid Prototyping Skills

Since the role focuses on rapid prototyping, be prepared to discuss how you've leveraged AI tools to quickly develop and deliver features. Share specific instances where you turned ideas into production-ready features in a short timeframe.

✨Highlight Your Pragmatic Approach

Discuss your philosophy on balancing 'done' versus 'perfect'. Share examples of when you chose to prioritise delivery while still addressing technical debt, showing that you understand the importance of both speed and quality in software engineering.

Senior Software Engineer in Belfast
MRJ Recruitment
Location: Belfast

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