Sql systems developer Work, Jobs in London, Eng (with Salaries)

Backend Developer
National Gas —East London
- £40,000 a year
- Full-time
- Azure
- In-person
Quick apply
1d
Software Support Specialist
LegalRM —Orpington
- £32,000 - £40,000 a year
- Full-time
- Hybrid work
- Azure
- SQL
- Communication skills
- Flexitime
- Work from home
Quick apply
Junior Systems Administrator
CBRE —London
- Full-time
- Azure
- SQL
- AWS
Software Developer/Analyst
International Rescue Committee —London
- £45,954 - £53,614 a year
- Spanish
- English
- Software development
12d
Experienced Database Administrator
iPipeline —Bromley
- Full-time
- Azure
- Oracle
- Computer Science
Trading Desk Full Stack Developer
ExxonMobil —London
- Computer Science
- Engineering
- Analysis skills
8d
Developer - Dynamics 365 CE
Safetykleen —Brentford
- £70,000 - £75,000 a year
- Full-time
- Azure
- AI
- Employee assistance programme
- Referral programme
Quick apply
Core Developer (Python)
Wintermute Trading —London
- Full-time
- Remote
- C++
- Software development
- Linux
- Relocation assistance
Database Administrator (DBA)
Air Apps —London
- £55,000 - £69,000 a year
- Full-time
- Azure
- DevOps
- SQL
- Life insurance
Catastrophe Risk Data Automation & Reporting Developer
Beazley Management Limited —London
- Microsoft Excel
- SQL
- Organisational skills
Backend Web Developer
Vebular Agency —London
- £45,000 - £55,000 a year
- Full-time
- Azure
- Software troubleshooting
- Java
Quick apply
2d
Java Full Stack Developer | Microservices. Kafka | London
Infosys —London
- Azure
- DevOps
- Java
Data Scientist (Computer Vision)
Revolut —London
- £24,900 - £36,600 a month
- System design
- Java
- SQL
9d
Senior Developer - Risk Technology - C# .NET, Python, Snowflake SQL (Vice President)
Jefferies & Company, Inc. —London
- Full-time
- Computer Science
- Engineering
- SQL
Oracle Developer
vServices —London
- Management
- Bachelor's degree
- Quality control
Junior AI Applied Python Backend Engineer
Code X London —London
- £30,000 - £35,000 a year
- Full-time
- Azure
- Computer Science
- Engineering
- Free parking
- Gym membership
Quick apply
12d
Junior / Mid-level Front Office Python Engineer (R&D / Trading Systems)
Margo Conseil —London
- Computer Science
- SQL
- Analysis skills
Software Development Engineer III (.NET/Java)
Tesco UK —London
- Full-time
- Databases
- Mentoring
- Agile
- Employee assistance programme
16h
Trainee Trading Systems Support Analyst (Foreign Exchange & Fixed Income Technology)
Société Générale —London
- Windows
- Databases
- SQL
5d
Java Developer (React)
Talan —London
- Full-time
- Hybrid work
- Java
- SQL
- Continuous improvement
Quick apply

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sql systems developer jobs near london, eng

Backend Developer

National Gas
East London

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Job details

Permanent | Full-time
£40,000 a year
1 day ago

Benefits

Company pension

Qualifications

Authentication
Website maintenance
Performance tuning
ASP.NET
Website management
Azure
ASP.NET Core
IIS
Microsoft SQL Server
Software development operations experience
Docker
CI/CD pipelines
Cloud development
Continuous integration
Back-end development
REST
GitHub
Microsoft Azure
Entity Framework

Full job description

We are looking for a Backend Developer to take ownership of the backend architecture, APIs, and core services that power both our existing web platforms and a new, modern, real-time operational system.

This is a hands-on role focused on developing scalable backend solutions, maintaining and enhancing our existing ASP.NET applications, and building cloud-based services using ASP.NET Core and Microsoft Azure. You will work closely with our developers to deliver modern, API-driven applications while helping to modernise our technology stack and improve the performance, security, and reliability of our systems.

You can find out more about us here: https://nationalgas.org.uk/

WHAT YOU’LL DO

Maintain, enhance, and support existing ASP.NET-based websites hosted on IIS
Build and extend backend services and REST APIs using ASP.NET Core / .NET
Implement real-time features using SignalR.
Support and integrate WebRTC audio-only calling functionality.
Design, optimise, and maintain SQL Server and MariaDB databases.
Build features involving mapping, GPS, geolocation, and geofencing.
Collaborate with product, engineering, and DevOps teams on system architecture.
Write clean, testable, and maintainable code across the full stack.
Contribute to performance, scalability, and security improvements.
Participate in code reviews, technical planning, and system design discussions

REQUIRED SKILLS AND EXPERTISE

Strong experience with ASP.NET Core / .NET
Experience maintaining or building ASP.NET websites
Strong background building RESTful APIs
Solid knowledge of SQL Server or MariaDB
Experience with Entity Framework Core and/or Dapper
Understanding of async programming, concurrency, and performance
Experience implementing authentication and authorisation (JWT, OAuth2)

DevOps & Cloud

Experience with CI/CD pipelines (Azure DevOps, GitHub Actions)
Comfortable using Docker for development and deployment
Exposure to Microsoft Azure (App Services, SignalR Service, Storage)
Familiarity with logging and monitoring tools (Application Insights, Serilog)
Comfortable working with IIS and Windows-based hosting environments

WHAT WE OFFER

Ownership of both existing platforms and new system builds
Opportunity to modernise and shape our long-term tech stack
Engineering-led environment with real technical ownership
Clear career progression and skills development

Pay: £40,000.00 per year

Benefits:

Company pension

Work Location: In person

Quick apply

Refine Your Search

sql systems developer jobs in london, eng

Backend Developer

Software Support Specialist

Junior Systems Administrator

Software Developer/Analyst

Experienced Database Administrator

Trading Desk Full Stack Developer

Developer - Dynamics 365 CE

Core Developer (Python)

Database Administrator (DBA)

Catastrophe Risk Data Automation & Reporting Developer

Backend Web Developer

Java Full Stack Developer | Microservices. Kafka | London

Data Scientist (Computer Vision)

Senior Developer - Risk Technology - C# .NET, Python, Snowflake SQL (Vice President)

Oracle Developer

Junior AI Applied Python Backend Engineer

Junior / Mid-level Front Office Python Engineer (R&D / Trading Systems)

Software Development Engineer III (.NET/Java)

Trainee Trading Systems Support Analyst (Foreign Exchange & Fixed Income Technology)

Java Developer (React)

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