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Bernard Tetteh

AWS Certified Solutions Architect building highly available, scalable, and secure cloud infrastructure.

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About

AWS Certified Cloud Engineer and Computer Science student at CUNY Lehman College. Experienced in building and deploying serverless cloud infrastructure on AWS.

Certifications

Technical Skills

Work Experience

Office Intern — Children's Arts & Science Workshops, Inc.

Bronx, NY | Jun 2023 – Aug 2023

  • Fielded 10–15 incoming calls daily, addressing inquiries and providing basic IT support using Microsoft Office Suite.
  • Performed clerical duties including mail management and document filing, leveraging Microsoft Office tools to streamline administrative processes.
  • Executed precise data entry for auditing and program functions, ensuring accuracy and adherence to compliance standards.

Projects

Cloud Resume ChallengeAWS Serverless Resume Website

2025 – 2026 | bernardtetteh.cloud

  • Architected and deployed a globally distributed, fully serverless resume website on AWS using Route 53, CloudFront, S3, API Gateway, Lambda (Python 3.12), and DynamoDB — eliminating server management and reducing infrastructure cost to under $1/month.
  • Built a serverless visitor counter backend using AWS Lambda and DynamoDB with atomic increment operations, integrated via API Gateway with CORS-enabled HTTP API, returning live visit counts to the frontend in real time.
  • Configured CloudFront CDN with ACM SSL/TLS certificate for HTTPS enforcement and Route 53 DNS with Alias records, delivering sub-100ms global load times across 400+ edge locations.
  • Diagnosed and resolved 6 real-world production issues including CORS misconfigurations, DynamoDB Decimal serialization errors, CloudFront cache invalidation failures, and API Gateway route mismatches — applying systematic debugging across the full AWS stack.

IT Support Lab Experience (Self-Directed)

2025 – Present | Independent Project | Freshservice ITSM | GitHub

  • Managed end-to-end ITIL incident lifecycle using Freshservice ITSM, handling tickets across account access, hardware, and network categories with proper triage, priority classification, and resolution documentation.
  • Performed root cause analysis on simulated IT incidents and documented structured resolution notes and knowledge base articles to support repeat issue reduction.
  • Applied professional IT communication standards including SLA-aware status management, user-facing replies, and internal agent notes across all simulated helpdesk scenarios.

Education

CUNY Lehman College — Bronx, NY

Bachelor of Science, Computer Science / Computer Information Systems

Jan 2020 – Dec 2024

CORE_COMPETENCIES

AWS (S3, EC2, Lambda) Lambda DynamoDB API Gateway IAM CloudFront Route53 Serverless Architecture

Featured Architecture

Serverless Cloud Resume

A globally distributed resume hosted on S3 and CloudFront with a serverless visitor counter powered by Lambda, API Gateway, and DynamoDB. Infrastructure as Code via Terraform and CI/CD via GitHub Actions.

S3 CloudFront Lambda DynamoDB API Gateway

Serverless cloud resume architecture using Amazon S3 for static hosting, CloudFront CDN for global distribution, API Gateway for API management, Lambda for backend compute, and DynamoDB for visitor storage.

High-Availability Web App

Multi-AZ architecture with Application Load Balancer, Auto Scaling EC2 instances, and Multi-AZ RDS for automated failover.

VPC ALB EC2 RDS Auto Scaling

High-availability web application architecture using VPC with multi-AZ subnets, Application Load Balancer for traffic distribution, Auto Scaling EC2 instances, and Multi-AZ RDS for automated database failover.