Job Title: Senior .NET / AWS Developer

100% Remote

12 Months Contract

Position Overview

We are seeking a Senior .NET / AWS Developer to design, develop, and support modern, enterprise-scale integration solutions across cloud, on-premises, and third-party applications.

This is a hands-on development role for an experienced integration engineer who is passionate about AWS, serverless architecture, APIs, event-driven integration, and modern software development. You will work with technologies including C#/.NET, AWS Lambda, AWS Step Functions, API Gateway, EventBridge, SQS, SNS, S3, DynamoDB, and CloudWatch to build secure, scalable, and highly reliable integration services.

The successful candidate will bring strong software engineering fundamentals, experience solving complex integration challenges, and the ability to work collaboratively with architects, developers, business analysts, and application teams.

Responsibilities:

- Design, develop, and maintain enterprise-grade integration solutions using C#/.NET.
- Build serverless and event-driven architectures using AWS Lambda, Step Functions, EventBridge, SQS, and SNS.
- Design and develop REST APIs, microservices, and integration services connecting cloud, on-premises, and third-party applications.
- Develop reliable, scalable workflows for data movement, application integration, orchestration, and business process automation.
- Integrate enterprise applications and business platforms through secure, well-designed APIs and services.
- Apply software engineering best practices around code quality, security, scalability, resiliency, observability, and performance.
- Implement logging, monitoring, alerting,



and troubleshooting using Amazon CloudWatch and related AWS services.
- Diagnose and resolve complex integration, application, and production issues.
- Optimize existing integrations for performance, reliability, maintainability, and cost efficiency.
- Contribute to CI/CD pipelines, automated deployments, infrastructure automation, and DevOps practices.
- Participate in architecture and technical design discussions and help identify opportunities to modernize legacy integration patterns.
- Work closely with solution architects, business analysts, developers, infrastructure teams, and other stakeholders to deliver high-quality solutions.
- Provide technical guidance and mentorship to other developers and contribute to development standards and best practices.

Required Qualifications

- 8+ years of hands-on experience with C#/.NET development.
- 5+ years of hands-on AWS development experience, including significant experience with:
- AWS Lambda
- AWS Step Functions
- API Gateway
- EventBridge
- SQS and SNS
- S3
- DynamoDB
- CloudWatch
- Strong experience designing and developing REST APIs and microservices.
- Demonstrated experience building serverless and event-driven integration solutions.
- Experience integrating cloud, on-premises, and third-party applications.
- Strong understanding of integration patterns, API design, asynchronous messaging, workflow orchestration, and distributed systems.
- Experience with Git, CI/CD, automated deployments, and modern DevOps practices.
- Experience working in Agile/Scrum or similar software development environments.

Preferred Qualifications

- AWS Certified Developer – Associate/Skilled or AWS Solutions Architect – Associate/Professional certification.

📌 .NET Developer with AWS Certification (Canada)
🏢 United Software Group
📍 Canada