Senior Software Developer in London

Senior Software Developer in London

London Full-Time 59400 - 72600 £ / year (est.) On-site
Spectrum IT Recruitment Careers

At a Glance

  • Tasks: Design and develop high-performance applications using C# and modern .NET.
  • Company: Join a high-performing tech team shaping trading and research systems.
  • Benefits: Competitive salary, flexible working, and opportunities for professional growth.
  • Other info: Dynamic environment with mentorship opportunities and career advancement.
  • Why this job: Make a real impact on innovative trading strategies and collaborate with experts.
  • Qualifications: 5+ years in software development with strong C#/.NET skills.

The predicted salary is between 59400 - 72600 £ per year.

An excellent opportunity for an experienced Senior Software Developer to join a high-performing technology team responsible for architecting, developing, and enhancing sophisticated trading and research systems.

This role would suit a strong C#/.

NET engineer who enjoys solving complex technical problems and wants to have genuine influence over the architecture and direction of the systems they build.

You will work on a combination of greenfield development and the continuous improvement of established platforms, building high-performance, reliable and scalable applications that directly support real-world trading strategies and quantitative research.

As a senior member of the engineering team, you will have the opportunity to influence technical architecture, development standards, performance optimisation and engineering best practices, while working closely with researchers, traders and other technical specialists.

Key Responsibilities

  • Design, develop and maintain high-performance applications using C# and modern . NET
  • Take ownership of significant software development projects from initial design through to production
  • Contribute to and lead architectural and technical design decisions
  • Design and develop scalable systems supporting automated trading, research and data-driven applications
  • Work closely with quantitative researchers and traders to understand requirements and translate them into robust technical solutions
  • Develop, optimise and maintain relational database solutions using SQL Server, Oracle or equivalent
  • Identify and resolve performance bottlenecks across applications, databases and supporting infrastructure
  • Develop solutions with a strong focus on reliability, scalability, maintainability and performance
  • Contribute to the design of multi-threaded, concurrent and potentially distributed applications
  • Participate in code reviews and maintain consistently high engineering standards
  • Establish and promote software development best practices across the team
  • Mentor and support junior and mid-level developers
  • Contribute to development tooling, automation, testing and continuous improvement initiatives
  • Investigate complex technical issues and provide effective, long-term solutions
  • Help shape coding standards, development processes and overall engineering practices
  • Stay current with developments across the C#/. NET ecosystem and modern software engineering practices

Essential Skills & Experience

  • 5+ years' professional software development experience
  • Strong commercial experience developing applications using C# and modern . NET
  • Excellent understanding of object-oriented programming, software design principles and architecture
  • Proven experience designing and developing production-grade, scalable software systems
  • Strong experience working with SQL Server, Oracle or another enterprise relational database
  • Experience developing reliable applications where performance and scalability are important
  • Strong problem-solving and analytical abilities
  • Experience working across the full software development lifecycle
  • Strong understanding of software engineering principles, development methodologies and version control
  • Excellent written and verbal English communication skills
  • High level of attention to detail and a methodical approach to problem solving
  • Bachelor's degree or higher in Computer Science, Mathematics, Physics, Engineering or another relevant scientific/technical discipline

Desirable Technical Experience

  • Experience developing multi-threaded and concurrent applications
  • Understanding of asynchronous programming and parallel processing
  • Experience with TCP/IP, UDP or network programming
  • Experience building low-latency or high-throughput applications
  • Experience working with Git or other distributed version control systems
  • Strong understanding of Windows development technologies
  • Experience with automated testing and continuous integration
  • Exposure to distributed systems and service-oriented architectures
  • Experience with performance profiling and application optimisation
  • Familiarity with financial markets, quantitative research, algorithmic trading or trading systems
  • Experience working alongside quantitative analysts, researchers, traders or data scientists

Spectrum IT Recruitment (South) Limited is acting as an Employment Agency in relation to this vacancy.

Senior Software Developer in London employer: Spectrum IT Recruitment Careers

Join a dynamic and innovative team as an Automation QA Engineer, where your expertise will be valued in a collaborative work culture that prioritises quality and continuous improvement. Our commitment to employee growth is evident through mentorship opportunities and involvement in key QA initiatives, all while enjoying the benefits of a supportive environment in a thriving location. With a focus on cutting-edge technology and best practices, we offer a rewarding career path for those looking to make a meaningful impact in software quality assurance.

Spectrum IT Recruitment Careers

Contact Details:

Spectrum IT Recruitment Careers Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Senior Software Developer 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 Spectrum IT Recruitment Careers 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 Spectrum IT Recruitment Careers.

✨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 Spectrum IT Recruitment Careers.

✨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 Spectrum IT Recruitment Careers 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 Software Developer in London

C#
.NET
Object-Oriented Programming
Software Design Principles
Architectural Design
SQL Server
Oracle

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 Spectrum IT Recruitment Careers.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Spectrum IT Recruitment Careers 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 Spectrum IT Recruitment Careers

✨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 Spectrum IT Recruitment Careers 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.