Aws Developer - Cryptography (Senior)

Khonology (Pty) Ltd; Gauteng; On-site; ZAR 600 000 - 800 000; Full time

Job summary

A technology solutions company based in South Africa is seeking a Cloud Security Engineer to design and maintain secure cloud infrastructure primarily on AWS, ensuring robust security through cryptographic solutions and API protection. The successful candidate will have over 5 years of experience in cloud engineering roles with expertise in AWS, strong knowledge of network security, and proficiency in technologies such as Java, Docker, and Kubernetes. The role offers an opportunity to work in a collaborative and innovative environment.

Qualifications

• 5+ years of experience in cloud engineering roles with strong AWS expertise.
• Experience in cryptography, key management, and secure software development.
• Strong knowledge of network security, IAM, and API management.

Responsibilities

• Design and implement secure cloud environments leveraging AWS and Azure.
• Deploy and maintain cryptographic solutions for data encryption.
• Manage API security and enforce identity and access controls.
• Utilise Java and Spring Boot for secure microservices development.
• Deploy and manage containerized applications using Docker and Kubernetes.
• Support ETL processes, optimise SQL queries, and ensure data integrity.
• Work closely with teams to manage cloud operations and troubleshoot issues.
• Enforce security best practices and conduct threat modeling.

Skills

AWS

Cryptography

API Management

Java

Spring Boot

SQL

Docker

Kubernetes

Jenkins

CI/CD

Education

Bachelor's degree in Computer Science or related field

Tools

Terraform

CloudFormation

Job description

OverviewRole OverviewThe Cloud Security Engineer is responsible for designing, building, and maintaining secure, scalable cloud infrastructure primarily on AWS, with integration across Azure environments.

This role ensures robust security through cryptographic solutions, identity and access management, and API protection, while supporting modern application development and operational excellence.

Responsibilities

• Cloud Infrastructure & Security: Design, implement, and support secure cloud environments leveraging AWS services such as EKS, S3, and RDS, while integrating with Azure where necessary.
• Cryptography & Compliance: Deploy and maintain cryptographic solutions for data encryption, secure transmission, and regulatory compliance.
• Application & API Security: Manage API security, secrets management, and enforce identity and access controls.
• Development & Automation: Utilise Java and Spring Boot for secure microservices development; implement CI/CD pipelines using Jenkins, Git, and related tools.
• Containerization & Orchestration: Deploy and manage containerised applications using Docker and Kubernetes.
• Data Operations: Support ETL processes, optimise SQL queries, and ensure data integrity.
• Collaboration & Incident Response: Work closely with cross-functional teams to manage cloud operations, troubleshoot issues, and respond to incidents.
• Security Governance: Enforce security best practices, conduct threat modelling, and assist with compliance audits.

Requirements

• Bachelor's degree in Computer Science, Information Systems, or a related field.
• 5+ years of experience in cloud engineering roles with strong AWS expertise.
• Proven experience in cryptography, key management, and secure software development.
• Strong knowledge of network security, IAM, and API management.
• Proficiency in Java, Spring Boot, SQL, Docker, Kubernetes, Jenkins, and CI/CD workflows.
• Experience with Azure cloud services, monitoring tools, and ETL / data integration processes.
• Familiarity with Agile delivery and DevOps culture.
• AWS or Azure certifications (e.g., AWS Certified Security Specialty, Solutions Architect) are desirable.
• Experience with Infrastructure as Code tools such as Terraform or CloudFormation is an advantage.