Michael Atolwa
Open to work

Michael Atolwa

Full-stack developer
Nairobi, Kenya

About

Full-stack developer with 2+ years of experience building scalable, secure applications and distributed systems. Skilled in designing foundational abstractions and reusable components for mission-critical workloads (e.g., authentication, authorization). Proven track record of optimizing performance (e.g., 40% latency reduction via system tuning) and automating deployments (Docker/Kubernetes). Passionate about engineering high-availability, low-latency services with rigorous testing and on-call collaboration. Adept at cross-team communication and solving complex problems under pressure.

Experience

GEN AI TRAINER

SAMASOURCE AI

April 2025 - June 2025

As a Gen AI Trainer at SamaSource AI, I played a crucial role in improving and refining generative AI models by creating, evaluating, and optimizing high-quality training data. I worked closely with AI researchers to ensure models produced accurate, unbiased, and contextually relevant outputs. My expertise in AI training methodologies, data annotation, and model fine-tuning directly contributed to the performance of cutting-edge AI systems. Accomplishments include: Developed and refined training datasets for generative AI models (e.g., LLMs, diffusion models). Annotated, labeled, and curated data to improve model accuracy and relevance. Evaluated AI-generated outputs for quality, coherence, and bias, providing feedback for improvements. Collaborated with AI engineers to fine-tune models based on performance metrics. Stayed updated on AI advancements to enhance training techniques. Improved AI model accuracy by 70% through optimized training datasets. Reduced bias in AI responses by 85% through structured evaluation and feedback. Scaled training data operations, increasing throughput by 65% without sacrificing quality. Contributed to the development of high-impact AI models deployed in production. Reduced model hallucination rates by 40% via improved fact-checking training methods.

DATABASE DEVELOPER

BAAKI PAY

Sept 2024 - Nov 2024

Showcased my Database Development expertise by designing scalable schemas, optimizing performance with indexing strategies, and implementing robust encryption for sensitive data. Migrated and validated data from legacy systems, ensuring seamless integration and accuracy. Documented processes and conducted monitoring using tools like Grafana to enhance system reliability. Accomplishments include: Designed and implemented an efficient and scalable database schema for an escrow payment system using MySQL. Migrated data from legacy systems, ensuring accurate mapping, cleansing, and validation to achieve seamless integration. Implemented encryption mechanisms (e.g., AES-256) for sensitive data, ensuring compliance with data security standards. Developed user access controls by defining roles and permissions to maintain data confidentiality. Conducted stress and performance testing to optimize database configurations and improve query execution time. Documented the database schema, access control policies, and performance benchmarks for team-wide reference and handover. Successfully improved query performance by optimizing indexes and database configuration settings. Deployed monitoring tools (e.g., Grafana, MySQL Workbench) to track database performance and set up automated alerts for critical metrics. Delivered a scalable, secure database solution within the project timeline, ensuring long-term maintainability. Agile Collaboration: Worked in sprints to deliver features like user authentication and payment workflows, documented in Jira. Testing & Debugging: Conducted unit/integration tests (PyTest) and resolved 15+ bugs pre-deployment. Key Achievement: Improved query performance by 40% through indexing and caching (Redis).

NETWORK ADMINISTRATOR INTERN

HABO GROUP

Dec 2022 - Dec 2023

Showcased my Networking and Security expertise by manning server configuration procedures, diagnosing network and security issues, and providing user training to the various software that were used by the company. Accomplishments include: Supporting PC hardware components, desktop operating system software, and application software. Monitor antivirus software updates and repair computers infected with malware. Incidence reporting, devising solutions, and other responses to requests for service. Assisting in maintaining inventory records and documentation for each piece of equipment used by the company. Analyzed and documented software requirements and user stories, ensuring alignment with business goals and customer needs. Monitoring backup systems and procedures to ensure data security. Zero-day management of company systems. Developing and providing proper user training for basic software and hardware use. Providing backup technical support for the network including router, firewall, and wireless access point. Manning CCTV feeds for the company. Troubleshooting company operational systems, ensuring proper setup of the systems, and sensitizing users on best practices to ensure little to zero leaks of company essential data. Maintaining records of all the analysis procedures carried out on the systems. Identifying and assessing security risks, analyzing security data, and developing and implementing security strategies to protect an organization’s technology infrastructure and data. Application Support: Customized internal tools using PHP and JavaScript, reducing manual workflows by 30%. Database Management: Migrated legacy data to MS SQL Server, ensuring zero downtime.

Data Researcher

eCore Services

Aug 2022 - Nov 2022

Conducted research for information required by a client’s business. I also monitored the information submitted by the client and validated it, enriched it and also cleaned it if errors were found. Accomplishments include: Conducting research on the internet for information as per the requirements of the client. Involved in data entry of information into the database. Data enrichment, where I participated in researching on the internet and updating the information on an existing database. Reviewing the information submitted and validating it, and if any errors are found, the data is cleaned.

Network Administrator Attaché

Vihiga County Govt.

Oct 2021 - Feb 2022

Took part in digital sensitization drives within the County where I, alongside my colleagues, educated people on the basic usage of tech tools to better aid their activities. Maintained hardware and firewalls to prevent unauthorized external access to network assets. System Integration: Deployed 3+ business applications, including Oracle-based COVID-19 registry for the Vihiga Referral Hospital. Performed installations, upgrades, and backups of software applications and operating systems. Conducted planned maintenance and implemented security patches to isolate and diagnose network problems. Administered Active Directory, group policies, and virus protection to facilitate network operations. Assisted users with technical issues to restore performance and prevent damage to infrastructure. Diagnosed, troubleshot, and resolved hardware, software, or other network and system problems. Researched new technologies in networking systems and incorporated the most beneficial options into the current architecture. Server administration. Repaired or replaced defective components and updated systems to correct problems or better handle new loads and functionality requirements.

Data Annotator

Remotasks Africa

Jan 2021 - Sept 2021

Accomplishments include: Performed tasks and projects ranging from data collection, image analysis and comparison, OCR transcription, 2D video analysis projects such as Falcon Video Box and 3D video analysis projects such as Falcon Lidar. Participated in group projects that aided the company clients in building smart technologies such as smart home appliances and self-driven cars by testing AI-oriented products using semantic annotation tools and speech recognition tools before being released to the market. Took up solo projects in Entity annotation, where my work enabled client software to understand unstructured sentences using the Named Entity Recognition technique.

Sales Agent

Grehum Africa

Mar 2019 - Aug 2019

Developed and cultivated professional relationships to build lucrative, long-term partnerships. Sold products and services to clients to boost sales revenues. Performed outbound calls and follow-up work to close sales. Analyzed customer reviews and surveys to locate product flaws and implement improvements. Performed installations of the DSTV and GOTV packages and advised the customers on how to seek customer support if they ran into product-related issues. Provided customers with a clear understanding of charges, billing and price changes.

Projects

(2)
Forxtrot

Forxtrot

Coming Soon
SaaS, Fashion2025-12-04

Building Kenya's next Fashion & Accessories Marketplace.

ViteTypeScriptReactshadcn-uiTailwind CSS
Safiri Cargo

Safiri Cargo

Coming Soon
Saas, Logistics2025-08-01

Building the next solution for Logistics operations in Africa.

viteTypeScriptReactTailwaind CSS

Education

ALX Africa

Oct 2024

Backend Development Certification

Cisco

Jan 2023

Cybersecurity Certification

Cooperative University of Kenya

Dec 2022

Bachelor of Science Information Technology

Alliance High School

Dec 2017

K.C.S.E Certificate

Cisco

2025

Ethical Hacker Certification

Skills

PythonDjangoFastAPIJavaSpring BootREST API DevelopmentSystem IntegrationReactNode.jsJavaScriptTypeScriptVue.jsHTMLCSSGraphQLPostgreSQLMySQLMS SQL ServerData ModelingDockerApacheKubernetesNginxCI/CD pipelinesAgile/ScrumUser TestingLinuxGitGitHubCybersecurityPyTestRedisPHP