Senior AWS Cloud Developer

Help shape the future of OSM’s cloud environment.
OSM Worldwide is looking for a Senior AWS Cloud Developer to help lead the evolution of our cloud technology and AWS strategy. This role goes beyond developing cloud applications. You’ll help define architecture, influence our AWS roadmap, establish development standards, and guide how we build scalable, secure, and reliable solutions for the future.

As a senior member of the technology team, you’ll combine hands-on development with technical leadership, partnering with developers and technology leaders to solve complex problems, evaluate new technologies, and mentor others. We’re looking for someone who enjoys taking ownership, challenging existing approaches, and turning ideas into practical solutions that move the business forward.

This is an on-site position based in Glendale Heights, IL.

What You'll Do

• Lead the design, development, deployment, and ongoing improvement of cloud-based applications and infrastructure using AWS services such as Lambda, EC2, S3, RDS, and related technologies.
• Help develop and maintain OSM's AWS cloud roadmap, identifying priorities, architecture improvements, modernization opportunities, and technologies that support the company's long-term business and technology strategy.
• Partner with technology leadership, developers, and business stakeholders to design scalable, reliable, secure, and cost-effective cloud solutions.
• Serve as a technical mentor and AWS subject matter expert, providing guidance to developers on cloud architecture, development practices, troubleshooting, and solution design.
• Provide technical leadership on cloud initiatives, helping teams evaluate requirements, identify solutions, and make sound architecture and development decisions.
• Partner with the Cloud Engineers & Architects to promote AWS development, security, and engineering standards across the organization.
• Monitor application and infrastructure performance, lead troubleshooting of complex production issues, perform root-cause analysis, and identify opportunities to improve reliability and performance.
• Own and continuously improve CI/CD pipelines in Azure DevOps, including reusable pipeline templates, pull request validation, automated builds and testing, branch policies, environment configuration, and multi-environment deployments.
• Develop and maintain Infrastructure as Code using technologies such as CloudFormation, Terraform, or AWS CDK.
• Identify opportunities to modernize applications and infrastructure, including serverless architectures, containers, automation, and cloud-native AWS services.
• Evaluate emerging AWS services and technologies and make recommendations based on business value, scalability, security, reliability, and cost.
• Participate in an occasional on-call rotation and provide senior-level support for critical production issues outside standard business hours when necessary.

What You'll Bring

• Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field, or equivalent professional experience.
• 7+ years of professional software development experience, including significant experience designing and developing cloud-based applications.
• 4+ years of hands-on AWS experience developing and supporting production applications and cloud infrastructure.
• Strong programming and application development experience in C# and .NET.
• Deep working knowledge of AWS services such as Lambda, EC2, S3, RDS, IAM, CloudWatch, and related AWS technologies.
• Experience with Infrastructure as Code using Terraform, AWS CloudFormation, AWS CDK, or similar technologies.
• Strong understanding of DevOps practices and hands-on experience building and maintaining CI/CD pipelines using AWS CodePipeline, Azure DevOps, GitHub Actions, Jenkins, or similar platforms.
• Experience with relational and NoSQL databases and designing cloud-based data solutions.
• Experience with containerization technologies such as Docker; experience with Kubernetes, Amazon ECS, or Amazon EKS is a plus.
• AWS certifications such as AWS Certified Developer – Associate or AWS Certified Solutions Architect – Associate/Professional are a plus.
• Knowledge of Flyway preferred.

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