At a Glance
- Tasks: Develop and optimise high-performance .NET systems while collaborating with a dynamic engineering team.
- Company: Join a forward-thinking tech company focused on innovation and excellence.
- Benefits: Enjoy competitive pay, flexible work options, and opportunities for personal growth.
- Other info: Be part of a collaborative culture that values continuous improvement and technical excellence.
- Why this job: Make a real impact by enhancing core systems and tackling exciting challenges.
- Qualifications: Proven experience in C#, .NET, and relational databases is essential.
The predicted salary is between 63000 - 77000 £ per year.
We are looking for a seasoned and highly skilled .
NET / C# engineer who has experience across .
NET Framework, relational databases, and the latest iterations of .
NET and C#.
The role is suited for someone with a deep understanding of distributed, high throughput systems handling very large data volumes where performance and efficiency are key, as well as complex relational databases.
You will be working closely with fellow developers, product colleagues and other stakeholders.
The engineer will work alongside our main engineering team to build, run, maintain, optimise, and support the company’s core platform deployed on servers physically located within our own datacentres.
They will take ownership of the performance, security, and evolution of the core technical functionality as well as the underlying data models.
High performance, stability, and resilience play a key role.
The team’s success will be defined by a stable and resilient system, minimal downtime, fast recovery, high performance, high stakeholder confidence, and the ability to adapt to incoming product and business requirements in a fast-paced environment.
This role would suit a driven problem-solver who combines strong technical judgement with curiosity, pragmatism and a genuine commitment to technical excellence.
Key Responsibilities
Role Description
We are looking for a seasoned and highly skilled .
NET / C# engineer who has experience across .
NET Framework, relational databases, and the latest iterations of .
NET and C#.
The role is suited for someone with a deep understanding of distributed, high throughput systems handling very large data volumes where performance and efficiency are key, as well as complex relational databases.
You will be working closely with fellow developers, product colleagues and other stakeholders.
The engineer will work alongside our main engineering team to build, run, maintain, optimise, and support the company’s core platform deployed on servers physically located within our own datacentres.
They will take ownership of the performance, security, and evolution of the core technical functionality as well as the underlying data models.
High performance, stability, and resilience play a key role.
The team’s success will be defined by a stable and resilient system, minimal downtime, fast recovery, high performance, high stakeholder confidence, and the ability to adapt to incoming product and business requirements in a fast-paced environment.
This role would suit a driven problem-solver who combines strong technical judgement with curiosity, pragmatism and a genuine commitment to technical excellence.
Key Responsibilities
- Develop, enhance, test and support . NET and . NET Framework distributed systems.
- Modernize legacy . NET Framework code and migrate it to . NET.
- Work alongside the DBA and the operations team to help keep the highly complex relational databases estate performing within expectations.
- Work on the company’s core systems, helping to improve reliability, resilience, usability and business value.
- Collaborate with product, engineering and other teams within the business to understand requirements and translate them into workable technical solutions.
- Build and maintain system integrations with internal systems as well as external platforms and services.
- Support the ongoing improvement and maintenance of existing applications, including troubleshooting defects, performance issues and production incidents.
- Contribute to technical design decisions, ensuring solutions are resilient, performant, supportable and aligned to industry standards and practices.
- Write clean, maintainable code and follow agreed standards for version control, testing, deployment and documentation.
- Participate in code reviews, peer support and knowledge sharing within the team.
- Assist with release activity, deployment processes and post-release support where required.
- Work with Git and CI/CD tooling to support structured software delivery.
- Contribute to a collaborative, delivery-focused team culture and support continuous improvement in the way they develop and support software.
- In addition to the duties listed above, the jobholder is expected to perform other ad-hoc duties assigned by the Head of Engineering and / or the Lead Engineer from time to time.
- All colleagues are encouraged to take responsibility for personal development initiatives within the scope of their role, and to encourage the development of others.
- Required experience and skills Mandatory
- Experience engineering software using C#, . NET, Asp. NET, . NET Framework, MS SQL Server.
- Experience building APIs, web services, system integrations.
- Experience building and supporting high throughput distributed systems.
- Experience with relational DBs and large data volumes in high throughput distributed systems.
- Experience engineering software systems from a performance, scalability, resilience, high availability, and high throughput perspective.
- Experience working with on premises systems and . NET legacy code.
- Excellent understanding of C# version 12, . NET version 8, preferably their more recent versions, as well as . NET Framework 2.0 and above.
- Excellent understanding of, Entity Framework Core, LINQ, and collections.
- Excellent understanding of Asp. NET, associated concepts, error handling, and request lifecycle.
- Excellent understanding of asynchronous programming, generics, data types, and memory management in C#.
- Excellent understanding of object-oriented programming and software engineering fundamentals.
- Excellent understanding around complexity, performance, and scalability of software systems.
- Excellent understanding of enterprise design patterns and modern enterprise architecture.
- Excellent understanding of process related concepts such as tasks, threads, processes, concurrency.
- Very good understanding of relational database, database fundamentals, performance aspects, and indexes on Microsoft SQL Server.
- Good understanding of ADO. NET and early . NET Framework data access technologies.
- Good understanding of unit testing and associated technologies.
Desirable
- Experience leveraging AI as a coding tool and AI agents to accelerate the software engineering process.
- Experience working in a fast paced, continuously evolving, and challenging environment.
- Understanding of software testing, particularly test automation and relevant technologies.
- Understanding of CI / CD concepts, pipelines, relevant systems and technologies.
Experienced .NET / C# Engineer in London employer: Insightful Technology
At Insightful Technology, we pride ourselves on being an exceptional employer that fosters innovation and collaboration in the heart of London. Our vibrant work culture encourages professional growth through mentorship and continuous learning, while our commitment to cutting-edge technology ensures that you will be at the forefront of the industry. Join us to make a meaningful impact in regulatory compliance solutions, all while enjoying the benefits of a supportive team environment and a focus on work-life balance.
StudySmarter Expert Advice🤫
We think this is how you could land Experienced .NET / C# Engineer 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 Insightful Technology 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 Insightful Technology.
✨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 Insightful Technology.
✨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 Insightful Technology 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 Experienced .NET / C# Engineer 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 Insightful Technology.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Insightful Technology 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 Insightful Technology
✨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 Insightful Technology 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.
