.NET Core Developer

Syntax Consultancy; Thorpe-on-the-Hill; Hybrid; GBP 60,000; Full time

Job summary

A leading global IT transformation company is looking for a .NET Core Developer in Leeds. This permanent position offers a salary of up to £60,000, with a hybrid work model of 3 days remote and 2 days on-site. Applicants should have strong AWS Serverless experience and a proven background in .NET Core development. Benefits include a bonus, pension, and increased holiday days. The ideal start is in December 2025 or January 2026.

Benefits

Bonus

Pension

Health Care Plan

22 days holiday plus bank holidays (rising to 25 days)

Death in Service

Qualifications

• Strong hands-on Back End development experience with .NET Core.
• Expertise in building and optimizing .NET Core microservices and RESTful APIs.
• Familiarity with Front End frameworks like React or Blazor is an advantage.

Responsibilities

• Develop scalable serverless applications using AWS services.
• Implement and manage CI/CD pipelines for automated deployment.
• Ensure application security and monitor using AWS best practices.

Skills

.NET Core development

AWS Serverless

DevOps practices

Building cloud-native applications

CI/CD pipelines

Front End development frameworks (React or Blazor)

Tools

AWS services

Azure DevOps

Git

Docker

Terraform

Job description

.NET Core Developer

Leeds (Hybrid)

Permanent

£60,000 (DOE)

.NET Core Developer needed with strong AWS Serverless experience for a permanent career opportunity based in Leeds (Hybrid). Start ideally Dec 2025/Jan 2026.

Hybrid Working - 3 days/week remote (WFH), and 2 days/week working on-site in the Leeds office.

A chance to work with a leading global IT transformation business specialising in large-scale Government projects.

Key experience, responsibilities + tasks:

• .NET Core Developer with strong expertise in building cloud-native applications.
• Strong hands-on Back End development using .NET Core, AWS serverless architecture + DevOps pipelines.
• Strong experience in .NET Core, ASP.NET Core (Web APIs, microservices).
• Building + optimizing .NET Core microservices and RESTful APIs.
• Developing + maintaining scalable serverless applications using AWS services such as: AWS Lambda, API Gateway, DynamoDB, S3, Step Functions, EventBridge, SNS/SQS, AppSync.
• Expertise in AWS serverless services (Lambda, API Gateway, S3, DynamoDB), DevOps practices + CI/CD pipelines.
• Front End development frameworks such as React or Blazor is an advantage.
• Implement and manage CI/CD pipelines using Azure DevOps, or GitHub Actions.
• Ensuring application security, monitoring, logging using AWS CloudWatch + IAM best practices.
• Technical Environment: Git, Docker, Containerization, automated deployment, Databases (SQL/NoSQL, PostgreSQL, DynamoDB), Infrastructure as Code (IaC), AWS CDK, Terraform, CloudFormation.
• Benefits: Salary to £60k (DOE) + Hybrid Work + Bonus + Pension + 22 days holiday plus BHs (rising to 25 days) + Death in Service + Health Care Plan + More.