AWS App Modernization Consultant

Who You'll Work With
We are seeking an experienced AWS App Modernization consultant with a proven track record of transforming legacy applications into cloud-native, modern architectures. This role will lead delivery teams in designing, modernizing, and optimizing applications on AWS, leveraging containers, serverless, microservices, and DevOps best practices.

As a consulting leader, you will partner with enterprise clients to assess current application portfolios, define modernization roadmaps, and oversee the successful delivery of complex modernization programs. This is an excellent opportunity for a senior AWS professional with strong application architecture experience, cloud-native delivery expertise, and client-facing leadership skills to drive large-scale transformation initiatives.

What You'll Do

• Lead application modernization programs, guiding delivery teams through the re-platforming, re-architecting, and refactoring of enterprise applications for AWS.
• Conduct portfolio assessments and develop modernization roadmaps, leveraging AWS services such as EKS, ECS, Lambda, API Gateway, Step Functions, DynamoDB, Aurora, and App Runner.
• Partner with clients to define modernization strategies, including microservices adoption, event-driven architectures, and serverless-first designs.
• Oversee the design and delivery of DevOps pipelines and cloud-native CI/CD workflows to accelerate application delivery.
• Drive containerization strategies using Kubernetes (EKS), Docker, and ECS with best practices for scaling and resilience.
• Modernize data layers, leveraging Aurora, DynamoDB, RDS migrations, ElastiCache, and API-driven integration patterns.
• Ensure application architectures meet enterprise-grade requirements for security, compliance, observability, and disaster recovery.
• Collaborate with security and governance teams to embed cloud-native security controls, identity, and compliance frameworks.
• Provide technical and strategic leadership in client workshops, executive sessions, and modernization assessments.
• Mentor and grow technical teams in application modernization practices, DevOps culture, and cloud-native development.

We are looking for candidates who are interested in working in a hybrid environment as we build the foundation and grow our team in Colombia. We offer a flexible working environment to balance the need to work independently, with days that may require in-person collaboration at our office.
What You'll Bring

• 10+ years of experience in application architecture, development, or modernization, with at least 5+ years in AWS cloud modernization engagements.
• Strong hands-on expertise in modernizing applications using microservices, containers, and serverless architectures.
• Deep knowledge of AWS services supporting modernization, including EKS, ECS, Lambda, API Gateway, App Runner, Aurora, DynamoDB, CloudFront, and Step Functions.
• Proficiency with DevOps and Infrastructure-as-Code (Terraform, CloudFormation, AWS CDK).
• Experience designing and implementing CI/CD pipelines for application delivery.
• Strong understanding of modern software delivery practices (Agile, DevOps, GitOps).
• Experience with legacy-to-modern transformations (Java/.NET to containerized or serverless architectures).
• Knowledge of application integration patterns, APIs, and event-driven systems (SNS, SQS, Kafka, Kinesis).
• Excellent client-facing and consulting skills with the ability to translate technical strategies into business value.

About Us
Slalom is a fiercely human business and technology consulting company that leads with outcomes to bring more value, in all ways, always. From strategy through delivery, our agile teams across 52 offices in 12 countries collaborate with clients to bring powerful customer experiences, innovative ways of working, and new products and services to life. We are trusted by leaders across the Global 1000, many successful enterprise and mid-market companies, and 500+ public sector organizations to improve operations, drive growth, and create value. At Slalom, we believe that together, we can move faster, dream bigger, and build better tomorrows for all.