Hire AWS Developers: 7 Things to Check Before Choosing a Cloud Expert

Choosing the right cloud expert can make a significant difference to your application's security, performance, and long-term operating costs. Whether you are launching a new product, migrating an existing application to the cloud, or modernizing your infrastructure, the AWS developer you hire should understand your business requirements as well as the technology.

Amazon Web Services (AWS) offers services for computing, storage, databases, networking, application deployment, monitoring, and much more. However, simply knowing how to configure AWS services does not make someone the right fit for every project. You need a developer who can make sound architectural decisions, protect your data, manage cloud spending, and prepare your infrastructure for future growth.

If you are planning to hire AWS developers, here are seven important things to evaluate before making your decision.

1. Check Their Practical AWS Experience

Start by looking beyond certifications and reviewing the developer's hands-on experience. AWS is a broad ecosystem, and different projects require different technical skills.

For example, a startup building a SaaS platform may need expertise in Amazon EC2, AWS Lambda, Amazon RDS, and Amazon S3. A business processing large volumes of data may require experience with analytics services, data pipelines, and event-driven architecture.

Ask candidates about projects they have worked on and the technical decisions they made. Find out how they handled deployment issues, application performance, infrastructure changes, and unexpected failures.

What to check:

• Experience with services relevant to your application.

• Understanding of cloud architecture and service integration.

• Practical experience with deployment, troubleshooting, and maintenance.

• Ability to explain technical decisions in straightforward business terms.

A developer who can explain why a particular AWS service was selected is often more valuable than someone who simply lists dozens of tools on a résumé.

2. Evaluate Cloud Security Knowledge

Security should be a priority from the beginning of any AWS project. Poor access controls, exposed credentials, and incorrectly configured storage can put business data at risk.

A qualified AWS developer should understand the principle of least privilege, which means giving users and applications only the permissions they need. They should also know how to use AWS Identity and Access Management (IAM), manage secrets securely, configure encryption, and monitor suspicious activity.

Ask how the developer would protect a production application containing customer information. Their answer should cover access management, data protection, logging, and incident response rather than relying on a single security tool.

Modern cloud security also requires regular reviews as applications and infrastructure change. AWS security guidance emphasizes protecting workloads, controlling access, and responding to security events.

What to check: IAM policies, encryption practices, secrets management, network security, audit logging, and familiarity with relevant compliance requirements.

3. Look for Infrastructure as Code and Automation Skills

Manually configuring cloud resources may work for a small experiment, but it becomes difficult to manage as an application grows. Infrastructure as Code (IaC) allows developers to define and manage cloud infrastructure through reusable configuration files.

Check whether your candidate has experience with AWS CloudFormation, AWS Cloud Development Kit (CDK), or Terraform. These tools help teams reproduce environments, review infrastructure changes, and reduce errors caused by inconsistent manual configuration.

Automation also matters for application delivery. A capable developer should understand continuous integration and continuous deployment (CI/CD), automated testing, and controlled releases.

For example, when deploying a new version of a customer portal, a well-designed pipeline can run tests, build the application, and deploy changes through defined stages instead of relying on manual steps.

What to check:

• Infrastructure as Code experience.

• Automated deployment and rollback procedures.

• Version control for infrastructure configuration.

• Separate development, testing, and production environments.

These practices make cloud environments easier to maintain and help teams deliver changes with greater consistency.

4. Assess Their Ability to Control AWS Costs

Cloud spending can increase unexpectedly when resources are oversized, idle, or poorly monitored. A good AWS developer should consider cost implications while designing the application, rather than treating billing as a problem to solve after deployment.

Ask how they would estimate monthly cloud expenses and identify opportunities to reduce unnecessary spending. Depending on the workload, useful measures may include selecting suitable compute resources, setting budgets and alerts, reviewing storage usage, and scaling capacity according to demand.

For example, an application with unpredictable traffic may benefit from serverless computing or automatic scaling. A service with steady workloads may be better suited to provisioned resources. The right choice depends on performance requirements, traffic patterns, operational complexity, and pricing.

AWS's Well-Architected guidance treats cost optimization as a core part of designing and operating cloud workloads. It also highlights the importance of reviewing architecture decisions for hidden costs and operational risks. <Cite refs={["turn538926search3","turn538926search5"]}/>

What to check: Cost estimation, AWS Budgets, billing analysis, resource monitoring, rightsizing, and a clear explanation of cost-performance trade-offs.

5. Verify Performance, Scalability, and Reliability Skills

Your application may run smoothly during initial testing but struggle when more users, transactions, or data arrive. The developer you choose should know how to design infrastructure that meets current needs without creating unnecessary complexity.

Look for experience with load balancing, auto scaling, caching, database performance, and resilient application architecture. Depending on your project, relevant AWS services may include Elastic Load Balancing, Amazon CloudFront, Amazon ElastiCache, and Amazon RDS.

Reliability also involves planning for failures. Ask how the developer would monitor application health, recover from service disruptions, back up important data, and test recovery procedures.

A useful interview question is: What would you change if our application suddenly had ten times its current traffic?

A strong answer should begin with understanding the workload and identifying bottlenecks, rather than immediately recommending more servers.

What to check: Monitoring, load testing, capacity planning, backup strategies, recovery planning, and experience designing for high availability.

6. Check Their Knowledge of Modern AWS Development Practices

Cloud development continues to evolve, particularly around serverless applications, containers, automation, and AI-enabled services. The right developer should understand current approaches and know when they are appropriate for your project.

For example, AWS Lambda can support event-driven workloads, while Amazon ECS and Amazon EKS help teams run containerized applications. Amazon Bedrock may be relevant when a project requires access to foundation models for generative AI features.

However, newer technology is not automatically better. A simple application may not need Kubernetes, and an AI feature may introduce additional security, monitoring, and cost considerations.

Also assess the developer's familiarity with observability, automated testing, API integration, and maintainable application code. If your business is developing AI features, ask how they would handle sensitive data, control model access, and monitor application behavior.

AWS continues to expand its cloud and AI capabilities, making it important to choose developers who keep their knowledge current while making technology decisions based on real requirements. 

What to check: Relevant experience with serverless or containerized workloads, modern deployment practices, monitoring tools, and the AWS services your project actually needs.

7. Review Communication, Problem-Solving, and Ongoing Support

Technical expertise alone does not guarantee a successful cloud project. Your developer must communicate clearly, document important decisions, and work effectively with your internal team.

Before hiring, discuss how progress will be reported, how issues will be escalated, and who will maintain the infrastructure after launch. Clarify responsibilities for bug fixes, security updates, cloud monitoring, backups, and future improvements.

It is also worth asking how the developer approaches unfamiliar problems. Cloud projects rarely follow every initial assumption, so you need someone who can investigate issues systematically and explain possible solutions, risks, and costs.

If you are hiring a dedicated AWS developer or outsourcing the work to a development company, confirm the engagement model, availability, ownership of code and infrastructure configurations, and handover arrangements.

What to check: Communication, technical documentation, troubleshooting, accountability, maintenance planning, and post-deployment support.

When Should You Hire AWS Developers?

Consider bringing in an AWS specialist when you are migrating from on-premises infrastructure, building a cloud-native application, improving security, reducing cloud expenses, or preparing an existing platform for increased traffic.

You may need one dedicated developer for a focused project or a broader team for architecture, application development, DevOps, and ongoing cloud management. The best arrangement depends on the complexity of your infrastructure and the support your in-house team can provide.

Before starting, define your project scope, current technical challenges, expected traffic, security requirements, and budget. These details make it easier to evaluate candidates against meaningful requirements instead of choosing based on hourly rates or certifications alone.

Final Thoughts

Hiring the right AWS developer means finding someone who can balance technical quality with security, reliability, cost control, and business priorities. Review practical experience, test problem-solving skills, and ask candidates to explain how they would approach your specific requirements.