NET Core Developer

Syntax Consultancy Ltd; Leeds; Hybrid; GBP 60,000; Full time

Job summary

A global IT transformation business is seeking a .NET Core Developer for a permanent position based in Leeds (Hybrid). This role involves developing cloud-native applications with AWS serverless architecture and optimizing microservices. The candidate should possess strong skills in .NET Core and DevOps practices. Benefits include a competitive salary, hybrid work model, and additional perks such as a pension and healthcare plan.

Benefits

Salary up to £60k (DOE)

Hybrid Work

Bonus

Pension

22 days holiday plus BHs (rising to 25 days)

Death in Service

Health Care Plan

Qualifications

• Strong experience in developing cloud-native applications with .NET Core.
• Hands-on back-end development using AWS serverless architecture.
• Expertise in building and optimizing RESTful APIs.

Responsibilities

• Develop and maintain scalable serverless applications using AWS services.
• Implement and manage CI/CD pipelines using Azure DevOps or GitHub Actions.
• Monitor and secure applications using AWS CloudWatch.

Skills

.NET Core development

AWS serverless architecture

DevOps practices

CI/CD pipelines

React or Blazor

Tools

AWS Lambda

API Gateway

Docker

Azure DevOps

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.