Stephen Mutunga Email & Phone Number

South Africa

- Architected and implemented scalable, fault-tolerant software applications on the AWS Cloud,leveraging services such as AWS Lambda, Amazon API Gateway, Amazon DynamoDB, and AmazonS3.- Owned and led strategic technology initiatives, driving innovation and operational excellence within theorganization.- Collaborated effectively with cross-functional teams to design, develop, test, and deploy robust solutions for large-scale technical challenges, consistently meeting project deadlines and quality standards.- Orchestrated a centralized observability platform using AWS services including CloudWatch, X-Ray, and CloudTrail, providing real-time insights into application performance and user experience.- Spearheaded system design initiatives, creating well-defined interfaces across multiple components that enhanced modularity and reduced integration issues.- Optimized resource allocation for containerized applications by accurately determining minimum memory and compute requirements, leading to improved resource utilization.- Staying up-to-date with the latest AWS services and best practices.

Nairobi, Kenya

- Led the development and successful launch of a critical insurance underwriting and policy management solution, streamlining re-insurance operations.- Demonstrated proficiency in implementing a wide range of advanced design patterns and architectural solutions to address complex system requirements and improve overall software quality.- Designed and implemented a comprehensive logging strategy using ELK stack (Elasticsearch, Logstash, Kibana) to effectively monitor application behavior and state across multiple microservices.- Integrated distributed tracing using AWS X-Ray, enabling end-to-end visibility of request flows and reducing mean time to resolution.- Designed and implemented event-driven, asynchronous systems using AWS services such as S3 Event Notifications, Amazon EventBridge, Amazon SNS and SQS, and AWS Lambda, enhancing scalability and responsiveness of cloud architectures.- Defined and implemented continuous delivery and release management strategy.- Developed and implemented Infrastructure as Code (IaC) using AWS Serverless Application Model (AWS SAM), AWS CloudFormation, and AWS Cloud Development Kit (AWS CDK).

London, England, United Kingdom

Demonstrated expertise in selecting and implementing appropriate design patterns to solve specific architectural challenges, consistently delivering robust and efficient solutions.Demonstrated expertise in breaking down complex, interconnected systems to identify and implement targeted improvements, leading to increase in system efficiency and reliability.Implemented robust data encryption protocols using advanced encryption keys, ensuring secure transmission and storage of sensitive information across multiple systems.Implemented robust data serialization and deserialization processes, ensuring efficient persistence of complex data structures to various data stores, resulting in improvement in data retrieval times.Participate in automated test planning and implementation as part of a continuous deployment environment.Designing and developing large scale distributed software services and solutions.Leading a team of software engineers on a project, and reporting to the project manager.

Nairobi, Kenya

- Built and maintained robust backend services using a multi-service framework, which enhanced the system reliability and scalability, reduced downtime, and improved overall system performance across 3 projects- Directed successful delivery of key business objectives and increased partnersatisfaction by aligning product development with their expectations- Minimized project turnaround time and improved product quality by leading and coordinating a cross-functional design and development team- Delivered user-friendly interfaces and efficient performance, increasing user engagementand customer retention by conceptualizing and designing web applications utilizing React, JavaScript, Typescript, C#, and SQL

Nairobi, Kenya

-Participated in all levels of product definition, design, implementation, testing, and deployment.-Designing and implementing new ERP features, Dynamic CRM portals etc.-Participated in all product and component design reviews to suggest improvements.-Build Point of sale, HR and Payroll Processing, Assets management, Project Controller etc.-Modeling ER diagrams and writing stored procedures and functions to process and manage data.