Collins Adom Baffour
Accra
Summary
Solution-driven DevOps Engineer with over three years of experience designing, implementing, and managing cloud- native and on-premises infrastructure in the Fintech industry. Skilled in orchestrating large-scale systems using Kubernetes, Redis, AWS, and PostgreSQL. Proficient in monitoring and logging with tools such as New Relic, ELK Stack, Datadog, and Grafana to ensure system health and reliability. Experienced in building and optimizing CI/CD pipelines using Azure DevOps, GitLab, and GitHub Actions, improving deployment efficiency and operational performance.
Overview
4
4
years of professional experience
Work History
Site Reliability Engineer (DevOps)
Hubtel Limited
07.2023 - Current
- Configured and managed Kubernetes clusters on AWS (EKS), ensuring high availability and scalability of microservices by maintaining an infrastructure capable of handling up to 10 million transactions per day, leveraging Kubernetes features for auto- scaling and load balancing.
- Implemented monitoring solutions using New Relic, Datadog, and Grafana, reducing system downtime by 30%. Developed custom dashboards for real-time metrics and alerts, enhancing system observability.
- Integrated Apache Kafka and Amazon Managed Streaming for Apache Kafka (MSK) into our event driven architecture, enabling real-time data processing and streaming. Optimized Kafka clusters for performance and reliability, supporting high-throughput data pipelines.
- Designed and maintained CI/CD pipelines using Azure DevOps, enabling continuous integration and faster release cycles. Automated testing and deployment processes, reducing errors and improving release quality.
- Ensured infrastructure security using IAM roles, VPC configurations, and regular vulnerability assessments. Managed compliance with industry standards such as PCI- DSS and HIPAA, leading to successful security audits.
- Collaborated with product teams to enhance service reliability by transitioning legacy systems to a microservices architecture, effectively eliminating single points of failure.
- Configured and managed Nginx and HAProxy as reverse proxies and load balancers, optimizing traffic distribution, SSL termination, and ensuring high availability for microservices.
- Designed and maintained data pipelines using AWS DMS and Airbyte, enabling seamless migration, replication, and integration of heterogeneous data sources across cloud and on-premises environments.
DevOps Engineer
Sovereign Payment Solutions Limited
09.2021 - 07.2023
- Automated infrastructure provisioning on AWS using Terraform, creating reusable modules for launching VPC, EC2, RDS, ALB and ECS, reducing deployment time and ensuring consistent infrastructure across environments.
- Deployed and tuned Apache Tomcat servers for Java-based applications, implementing performance optimization, thread management, and secure configurations to support enterprise-grade workloads.
- Built CI/CD pipelines using GitHub Actions for infrastructure deployment and application releases.
- Managed service lifecycle with systemd, ensuring smooth startup, monitoring, and recovery processes.
- Enhanced infrastructure monitoring using CloudWatch, Prometheus, and Grafana, improving system visibility and uptime.
- Collaborated with developers to improve code quality and deployment processes, promoting a DevOps culture.
- Deployed and managed containerized applications with Docker and Elastic Container Service.
Software Engineer (FullStack)
Amalitech Services
04.2021 - 08.2021
- Conceived and built responsive company landing pages using React.js, ensuring cross-browser compatibility and a consistent user experience across all major web browsers. This development approach not only enhanced the visual appeal and performance of the website but also improved accessibility for a wider audience, contributing to increased user engagement and satisfaction.
- Built RESTful APIs using Spring Boot for an employee management system, enabling efficient handling of employee data, including CRUD operations for employee records, role management, and department assignments. These APIs provided a scalable and secure backend solution that facilitated seamless integration with various front-end applications, enhancing the overall system's functionality and user experience.
Education
Bachelor of Science - Computer Science
KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
Kumasi06-2019
Skills
- Kubernetes
- Docker
- Jenkins
- Terraform
- Ansible
- SpaceLift
- Kustomize
- Lens
- AWS
- GCP
- PostgreSQL
- Redis
- MySQL
- MsSql
- New Relic
- ELK Stack
- Graylogs
- Grafana
- Loki
- Nagios
- Datadog
- Azure DevOps
- GitLab CI
- GitHub Actions
- Python
- Bash
- Java
- JavaScript
- C#
- Typescript
- Git
- GitHub
- GitLab
- Linux
- Windows
- Detail Oriented
- Teamwork
- Client Facing Experience
- Agile Workflow
- SOLID
Timeline
Site Reliability Engineer (DevOps)
Hubtel Limited
07.2023 - Current
DevOps Engineer
Sovereign Payment Solutions Limited
09.2021 - 07.2023
Software Engineer (FullStack)
Amalitech Services
04.2021 - 08.2021
Bachelor of Science - Computer Science
KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
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