Senior C# (.Net Core) Developer (10+ years) with strong backend experience to upgrade a complex[...]

TN United Kingdom; London; Remote; GBP 60,000 - 90,000; Full time

Job summary

An established industry player is seeking a Senior C# (.Net Core) Developer with over 10 years of experience to enhance a complex application in a cloud environment. This fully remote role offers the opportunity to work with cutting-edge technologies on significant projects. You will develop high-quality web applications, focusing on backend processes while also engaging in frontend tasks. Join a dynamic team where your expertise in AWS, database management, and API integration will be invaluable, and help guide architecture decisions while mentoring junior developers. This is a fantastic opportunity to make a real impact in a forward-thinking company.

Qualifications

• 10+ years experience in C# (.Net Core) development with strong backend focus.
• Experience with AWS infrastructure and databases like MongoDB and SQL Server.

Responsibilities

• Develop and deliver production-quality web applications with a focus on backend work.
• Support and troubleshoot existing applications, ensuring system stability.

Skills

C# (.Net Core)

AWS

RESTful API

MongoDB

SQL Server

PostgreSQL

Oracle

CI/CD pipelines

Unit testing

AG Grid

Tools

CircleCI

GitHub Actions

Jenkins

Jest

Mocha

Cypress

Job description

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Senior C# (.Net Core) Developer (10+ years) with strong backend experience to upgrade a complex application in a Cloud environment (AWS), London

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Client:

S.i. Systems

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

38acd2d133e9

Job Views:

12

Posted:

28.04.2025

Expiry Date:

12.06.2025

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Job Description:

Our client is seeking Senior C# (.Net Core) Developer (10+ years) with strong backend experience to upgrade a complex application in a Cloud environment

* This role is 100% remote and candidates must be willing to work standard MST business hours. Preference given to local Calgary candidates.

Must Have:

• 10+ years experience as a Senior C# (.Net Core) Developer with strong backend experience to upgrade a complex application
• Experience with both non-relational (MongoDB, AWS DynamoDB) and relational databases (SQL Server, PostgreSQL, Oracle)
• Experience working with RESTful API services for integration and data flow between front-end and back-end systems
• 3+ years experience developing in and deploying on AWS infrastructure (preferred tools: Cognito, S3, ECS, CDK, Lambda, CloudWatch, API Gateway, Amplify)
• Experience working on complex projects within Manufacturing or Industrial control centers

Nice to have:

• CI/CD pipelines (CircleCI, GitHub Actions, Jenkins)
• Experience creating unit and automated tests using tools like Jest, Mocha, Cypress
• Strong experience with AG Grid, enhancing data presentation and user interaction in data-intensive applications
• Experience implementing secure authentication and authorization using JSON Web Tokens (JWT) through platforms such as AWS Cognito, AWS Amplify, Auth0, or similar services

What you will be doing:

• Develop and deliver production-quality web applications, with approximately 70% backend and 30% frontend work. These applications handle large volumes of real-time data.
• Learn and understand multiple applications and business processes supporting our business units, including large data sets.
• Develop new applications based on identified business needs.
• Support and troubleshoot existing applications, creating code fixes and patches to ensure system stability.
• Provide end-user support for solving complex issues.
• Guide architecture decisions and mentor junior developers.