Senior Software Developer in London
Senior Software Developer

Senior Software Developer in London

London Full-Time 36000 - 60000 £ / year (est.) No home office possible
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S I Systems

At a Glance

  • Tasks: Design and develop scalable software solutions in a dynamic Azure environment.
  • Company: Join a leading enterprise client focused on innovation and collaboration.
  • Benefits: Competitive salary, health benefits, and opportunities for professional growth.
  • Why this job: Make an impact by integrating systems and enhancing data integrity.
  • Qualifications: 3-5 years in software or data engineering with strong SQL skills.
  • Other info: Collaborative team environment with excellent career advancement potential.

The predicted salary is between 36000 - 60000 £ per year.

Our large, enterprise client is seeking an experienced Senior Software Developer (SQL, C#, Python) to design, develop, and integrate business applications and data systems within a Microsoft Azure environment. This role focuses on building scalable integrations between enterprise systems (e.g., Workday, Dynamics, internal security platforms) to support data integrity, automation, and reporting. The successful candidate will bring strong SQL and development expertise, a delivery mindset, and a collaborative approach in a highly technical, team-oriented environment.

Must-Haves:

  • 3-5 years' experience as a Software Engineer or Data Engineer
  • Strong proficiency in SQL (non-negotiable) — including complex queries, optimization, and data transformation.
  • Experience in data modeling, data mapping, and data pipeline design using best practices for performance, version control, and testing.
  • Experience designing and maintaining system integrations (Workday, CRM, ERP, or similar).
  • Proficiency in one or more languages such as C#, .NET, Python, or Java.
  • Collaborative, delivery-focused mindset — ability to thrive in a fast-paced, highly interactive environment (10+ technical touchpoints daily).
  • Able to be onsite in Edmonton once a month.

Nice-to-Haves:

  • Experience working within the Microsoft Azure ecosystem (data services, automation, cloud infrastructure).
  • Exposure to unified data platforms such as Microsoft Fabric or Snowflake.
  • Knowledge of modern data architectures (Data Lakes, Warehouses, Lakehouses).
  • Experience with Power BI for analytics and reporting.
  • Familiarity with Dynamics CRM, Dynamics F&O, or similar ERP/CRM systems.

Responsibilities:

  • Design, develop, and maintain scalable software solutions that support business applications and data analytics.
  • Build and maintain data pipelines that automate extraction, transformation, and loading (ETL) from various sources into unified data platforms.
  • Conduct troubleshooting, analysis, and performance optimization to ensure system reliability.
  • Create and maintain comprehensive technical documentation (e.g., system diagrams, use cases, functional specs).
  • Develop and execute test plans to validate solutions against business and quality standards.
  • Collaborate with cross-functional teams to identify, troubleshoot, and resolve system issues.
  • Provide subject matter expertise on software, data management, and integration strategies.
  • Apply change management principles to ensure controlled and compliant system updates.

Senior Software Developer in London employer: S I Systems

As a leading enterprise in the technology sector, we pride ourselves on fostering a dynamic and inclusive work culture that prioritises collaboration and innovation. Our employees benefit from ongoing professional development opportunities, competitive compensation packages, and the chance to work with cutting-edge technologies in a supportive environment. Located in Edmonton, our team enjoys a vibrant city life while contributing to impactful projects that drive business success.
S I Systems

Contact Detail:

S I Systems Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Software Developer in London

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work with SQL, C#, or Python. A friendly chat can lead to insider info about job openings that aren't even advertised yet.

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your projects, especially those involving data pipelines and system integrations. This gives potential employers a taste of what you can do and sets you apart from the crowd.

✨Tip Number 3

Prepare for interviews by brushing up on your technical knowledge and soft skills. Practice common coding challenges and be ready to discuss your experience with Microsoft Azure and data architectures. Confidence is key!

✨Tip Number 4

Don't forget to apply through our website! We make it easy for you to find roles that match your skills and interests. Plus, it shows you're serious about joining our team and helps us get to know you better.

We think you need these skills to ace Senior Software Developer in London

SQL
C#
Python
Data Modeling
Data Mapping
Data Pipeline Design
System Integrations
Microsoft Azure
ETL
Performance Optimization
Technical Documentation
Test Plan Development
Collaboration
Change Management

Some tips for your application 🫡

Tailor Your CV: Make sure your CV highlights your experience with SQL, C#, and Python. We want to see how your skills match the job description, so don’t be shy about showcasing your relevant projects and achievements!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to explain why you’re the perfect fit for this role. Share specific examples of your work with data systems and integrations, and let us know how you thrive in collaborative environments.

Showcase Your Problem-Solving Skills: In your application, highlight instances where you've tackled complex challenges, especially in data pipeline design or system integrations. We love candidates who can demonstrate a delivery-focused mindset and a knack for troubleshooting!

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 shows you’re keen on joining our team at StudySmarter!

How to prepare for a job interview at S I Systems

✨Know Your Tech Inside Out

Make sure you brush up on your SQL, C#, and Python skills before the interview. Be ready to discuss complex queries, data transformation, and system integrations. Practising coding challenges or reviewing past projects can help you articulate your experience effectively.

✨Showcase Your Collaborative Spirit

This role requires a delivery-focused mindset in a team-oriented environment. Prepare examples of how you've worked with cross-functional teams in the past. Highlight your ability to communicate technical concepts clearly and how you’ve contributed to successful project outcomes.

✨Understand the Business Context

Familiarise yourself with the enterprise systems mentioned in the job description, like Workday and Dynamics. Understanding how these systems integrate and support business applications will show that you’re not just a techie but also someone who gets the bigger picture.

✨Prepare Questions That Matter

Interviews are a two-way street! Think of insightful questions about the company’s use of Microsoft Azure, their approach to data management, or how they handle system updates. This shows your genuine interest in the role and helps you assess if it’s the right fit for you.

Senior Software Developer in London
S I Systems
Location: London
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