Back end developer Work, Jobs in Watford Wd25 (with Salaries)

Backend Developer
National Gas —East London
- £40,000 a year
- Full-time
- Azure
- In-person
Quick apply
19h
Back End Engineer
Voy —London
- Hybrid work
- JavaScript
- No degree
- APIs
Quick apply
Full Stack Developer
StoryTerrace —London
- £4,000 a month
- Remote
- AI
Quick apply
9d
Web Designer/Front end developer
Amplefuture —London
- Software troubleshooting
- HTML
Software Engineer
Longshot Systems Ltd —London
- Full-time
- Hybrid work
- English
- Java
- Master's degree
- Gym membership
Quick apply
Frontend Developer (React) Junior/Mid
Careerswift —London
- Full-time
- Remote
- JavaScript
- APIs
Junior Front End Developer
Byte9 —London
Solar Web UI Developer
Standard Chartered —London
- English
- Communication skills
- Annual leave
- Employee assistance programme
1d
Python Developer
Durlston Partners —London
- £150,000 - £175,000 a year
- Remote
- C++
- Python
Full-Stack Developer
Applied Data Science Partners —London
- Hybrid work
- Analysis skills
- Organisational skills
- Agile
- Annual leave
12d
Junior Software engineer
vServices —London
- Computer Science
- SQL
- C++
Back End Developer
DataSpartan Consulting —London
- Computer Science
- Master's degree
- Bachelor's degree
Java Developer
Capgemini Sogeti —London
- Hybrid work
- Java
- Software development
- Agile
11h
Full Stack Developer
LEWIS —London
- JavaScript
- HTML
Software Engineer - Customer Capabilities
Compare the Market —London
- APIs
Quick apply
Junior Developer
EeBria Ltd —London
- Bar
- Analysis skills
- JavaScript
Quick apply
S/4HANA ABAP Developer (Back-end)
Capgemini Sogeti —London
- Software troubleshooting
- Continuous improvement
1d
S/4HANA ABAP Developer (Back-end)
Capgemini —London
- Software troubleshooting
- Continuous improvement
1d
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
11d
Back-End Engineer, Trading
Blockchain.com —London
- Full-time
- Remote
- SQL
- AWS
- APIs
Quick apply

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Backend Developer

National Gas
East London

Quick apply

Job details

Permanent | Full-time
£40,000 a year
19 hours 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

back end developer jobs in watford wd25

Backend Developer

Back End Engineer

Full Stack Developer

Web Designer/Front end developer

Software Engineer

Frontend Developer (React) Junior/Mid

Junior Front End Developer

Solar Web UI Developer

Python Developer

Full-Stack Developer

Junior Software engineer

Back End Developer

Java Developer

Full Stack Developer

Software Engineer - Customer Capabilities

Junior Developer

S/4HANA ABAP Developer (Back-end)

S/4HANA ABAP Developer (Back-end)

Junior AI Applied Python Backend Engineer

Back-End Engineer, Trading

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