Senior AWS Cloud Architect

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Callista

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2010

🤝 B2B

💸 Finance

💊 Pharmaceuticals

B2B • Finance • Pharmaceuticals

Callista is a consulting and engineering company specializing in complex projects in the insurance, finance, industrial, and life science sectors. Based in Zug, Switzerland, Callista was founded in 2010 and employs around 160 experts. The company focuses on delivering impactful results through strategic digital enterprise consulting, enterprise agility, software engineering, data engineering, cloud engineering, security & identity management, and pharmaceutical engineering. Callista supports clients by transforming their processes and systems to adapt to changing market demands and technological advancements, ensuring long-term project success. With a commitment to innovation and quality, Callista collaborates closely with clients to enhance their business agility and competitive edge.

📋 Description

• Design, implement, and review enterprise-grade AWS cloud architectures • Define architecture standards, best practices, and cloud platform guidelines • Ensure solutions meet requirements for scalability, high availability, security, and disaster recovery • Lead architecture discussions and technical reviews with business, security, development, and operations teams • Advise engineering teams on cloud-native approaches and implementation decisions

🎯 Requirements

• Bachelor’s or Master’s degree in Computer Science, Software Engineering or Information Technology • Extensive hands-on experience in cloud, platform, or infrastructure architecture • Proven experience delivering end-to-end AWS projects in complex enterprise environments • Strong knowledge of AWS services including EC2, S3, RDS, Lambda, ECS/EKS, IAM, CloudWatch, and VPC • Experience with cloud architecture patterns, security by design, IAM, networking, and governance • Hands-on experience with Infrastructure as Code (Terraform or CloudFormation) and CI/CD environments • Knowledge of containers, microservices, serverless, and event-driven architectures • Strong communication skills and ability to influence technical decisions at enterprise level • Industry experience in Life Sciences, Pharmaceuticals, Chemicals, or CDMO environments is highly desirable and will be considered a strong advantage.

🏖️ Benefits

• Available to start immediately • 60% - 100% workload • Remote working model • Duration: 2-3 months