At a Glance
- Tasks: Enhance and modernise a legacy C# codebase while collaborating with a dynamic engineering team.
- Company: A growing tech-led business in Slough, transforming its systems post-acquisition.
- Benefits: Competitive salary, hybrid working, and opportunities for technical ownership and progression.
- Other info: Engage in leadership decisions and contribute to a collaborative environment with 40 projects in the pipeline.
- Why this job: Join at a pivotal moment and shape the future of our platform with impactful projects.
- Qualifications: Strong C# and .NET experience, agile familiarity, and cloud knowledge are essential.
The predicted salary is between 65000 - 80000 £ per year.
Requirements
- We are looking for strong experience with C# development.
- We require experience with . NET Framework and . NET Core.
- We need hands‑on experience with Win Forms or other desktop application development.
- We require experience working with MS SQL Server.
- We are looking for experience with refactoring and modernisation projects.
- We require experience working in agile environments.
- We need familiarity with CI/CD practices.
- We require experience with testing methodologies such as TDD.
- We are looking for cloud experience.
- We would value experience migrating legacy systems.
- We would value exposure to React or Java Script.
- We are looking for someone comfortable working onsite regularly during the early stages of a project in a hybrid setup.
Responsibilities
- We will have you assess, improve, and progressively enhance an established C# codebase built on older Microsoft technologies.
- We will have you help evolve a large-scale legacy platform from an on‑premise desktop environment to a modern . NET Core, cloud‑based architecture.
- We will have you work closely with our CTO and wider engineering team on technical direction.
- We will have you contribute to planning, collaboration, and technical workshops.
- We will have you support the transition from legacy desktop applications toward modern web and cloud platforms.
- We will have you help manage and influence a major systems transformation programme.
- We will have you work across multiple projects in the transformation pipeline.
- We will have you bring greenfield thinking within an established business.
- We will have you participate in leadership and architecture decisions.
- We will have you contribute as part of a small, collaborative engineering team.
- Technologies
- . NET Framework
- C#
- CI/CD
- Cloud
- CTO
- Support
- Java Script
- React
- SQL
- TDD
- Web
- ASP. NET
- Frontend
- More
We are a growing, technology‑led business based in Slough, undergoing a major systems transformation following a recent acquisition.
This is a high‑impact opportunity to join at a pivotal stage of our journey, with around 40 projects in the pipeline and the chance to shape the future of our platform.
We offer hybrid working, although we would ideally like someone who can attend onsite regularly during the early stages for collaboration and technical workshops.
This role offers significant technical ownership, direct access to leadership, and long‑term progression as our technology function continues to grow.
The salary for this position is £65,000 to £80,000 plus benefits.
- last updated 33 week of 2026
- #J-18808-Ljbffr
Senior .NET Developer in Langley employer: Avanti Recruitment
Join an innovative technology company that values collaboration and excellence in software development. As a Principal Embedded Software Engineer, you will thrive in a dynamic Agile environment, contributing to cutting-edge products while enjoying competitive benefits such as a private pension and healthcare. With a strong focus on employee growth and technical leadership, this role offers a unique opportunity to make a significant impact in the field of embedded systems.
StudySmarter Expert Advice🤫
We think this is how you could land Senior .NET Developer in Langley
✨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 Avanti Recruitment 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 Avanti Recruitment.
✨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 Avanti Recruitment.
✨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 Avanti Recruitment 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 in Langley
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 Avanti Recruitment.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Avanti Recruitment 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 Avanti Recruitment
✨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 Avanti Recruitment 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.
