Senior C# Developer - Londin - Perm
Senior C# Developer - Londin - Perm

Senior C# Developer - Londin - Perm

Full-Time 50000 - 80000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Design and develop business-critical applications using C#/.NET and SQL.
  • Company: Dynamic London-based organisation with a collaborative engineering team.
  • Benefits: Competitive salary, long-term stability, and career progression opportunities.
  • Why this job: Take ownership of complex systems and make a real impact in a hands-on role.
  • Qualifications: Strong experience in C#/.NET and SQL, with excellent communication skills.
  • Other info: Onsite position in London with a focus on mentoring and teamwork.

The predicted salary is between 50000 - 80000 £ per year.

Location: London (Fully Onsite)

Employment Type: Permanent

Salary: £50,000 - £60,000 (DOE)

Visa Sponsorship: Not available

We’re working with a London-based organisation that is looking to hire an experienced Senior C# Developer to join their engineering team in a fully onsite position. This role is ideal for someone who enjoys hands-on development, working closely with the business, and taking ownership of complex systems.

The Role

As a Senior C# Developer, you’ll be responsible for designing, developing, and maintaining business-critical applications built on C#/.NET and SQL. You’ll play a key role in technical decision-making, improving code quality, and ensuring the reliability and performance of core systems. You’ll work closely with other developers, QA, product owners, and non-technical stakeholders, contributing across the full software development lifecycle.

Key Responsibilities

  • Design, develop, and maintain applications using C# / .NET
  • Write, optimise, and maintain SQL queries, stored procedures, and database schemas
  • Contribute to technical architecture and system design discussions
  • Carry out code reviews and promote best development practices
  • Support and mentor junior and mid-level developers
  • Troubleshoot, debug, and improve existing systems
  • Collaborate closely with business and technical teams onsite

Essential Skills & Experience

  • Strong commercial experience as a Senior C# Developer
  • Advanced knowledge of C# / .NET
  • Strong experience working with SQL (SQL Server or similar)
  • Experience delivering and supporting production-grade applications
  • Solid understanding of software design principles and best practices
  • Comfortable working in a onsite London-based team
  • Strong communication and stakeholder engagement skills

Desirable Skills

  • Experience with modern .NET versions
  • Exposure to cloud platforms (Azure, AWS, or similar)
  • Experience with RESTful APIs
  • Familiarity with Agile / Scrum environments

What’s On Offer

  • Salary of £50,000 - £80,000 depending on experience
  • Onsite role in London
  • Opportunity to work on business-critical systems
  • Collaborative, experienced engineering team
  • Long-term stability and career progression

If you’re a Senior C# Developer looking for an onsite role in London where you can have real technical ownership and work on complex systems, we’d love to hear from you.

Senior C# Developer - Londin - Perm employer: Infused Solutions

Join a dynamic London-based organisation as a Senior C# Developer, where you will thrive in a collaborative and experienced engineering team. Enjoy the benefits of a competitive salary, long-term stability, and ample opportunities for career progression while working on business-critical systems in a fully onsite environment. This role offers the chance to take ownership of complex projects and contribute significantly to both technical and business discussions.
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Contact Detail:

Infused Solutions Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior C# Developer - Londin - Perm

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work in London. A personal recommendation can make all the difference when you're applying for that Senior C# Developer role.

✨Tip Number 2

Show off your skills! Prepare a portfolio or GitHub repository showcasing your C# and .NET projects. This gives potential employers a taste of what you can do and sets you apart from the crowd.

✨Tip Number 3

Ace the interview! Brush up on your technical knowledge and be ready to discuss your past projects. Don’t forget to highlight your experience with SQL and how you've contributed to team success in previous roles.

✨Tip Number 4

Apply through our website! We make it easy for you to find the right job. Plus, we’re always on the lookout for talented developers like you, so don’t miss out on the chance to join a collaborative engineering team.

We think you need these skills to ace Senior C# Developer - Londin - Perm

C#
.NET
SQL
Technical Architecture
Code Reviews
Software Design Principles
Troubleshooting
Debugging
Stakeholder Engagement
Agile
Scrum
RESTful APIs
Cloud Platforms (Azure, AWS)

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with C# and .NET, as well as any SQL skills. We want to see how your background aligns with the role, so don’t be shy about showcasing relevant projects!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Tell us why you’re passionate about this role and how your skills can contribute to our team. Keep it concise but engaging – we love a good story!

Showcase Your Problem-Solving Skills: In your application, mention specific challenges you've faced in previous roles and how you tackled them. We’re looking for someone who can take ownership of complex systems, so let us know how you’ve done that before!

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’re considered for the role. Plus, it’s super easy!

How to prepare for a job interview at Infused Solutions

✨Know Your C# Inside Out

Make sure you brush up on your C# and .NET knowledge before the interview. Be prepared to discuss your past projects in detail, especially those that showcase your ability to design and maintain complex systems. Practising coding challenges can also help you demonstrate your technical skills.

✨SQL Skills Are Key

Since SQL is a big part of the role, ensure you're comfortable with writing and optimising queries. You might be asked to solve a problem on the spot, so review your SQL skills and be ready to explain your thought process while troubleshooting or debugging.

✨Showcase Your Team Spirit

This role involves collaborating closely with various teams, so highlight your experience working in a team environment. Share examples of how you've mentored junior developers or contributed to code reviews, as this will show your ability to engage with both technical and non-technical stakeholders.

✨Prepare Questions for Them

Interviews are a two-way street! Prepare thoughtful questions about their development processes, team dynamics, and the technologies they use. This not only shows your interest in the role but also helps you assess if the company is the right fit for you.

Senior C# Developer - Londin - Perm
Infused Solutions
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