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Nickson Kaigi

@nicksonkaigi

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Results-driven Full-Stack Python Engineer specializing in high-performance SaaS.

Kenya

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What I'm looking for

I seek hands-on engineering roles where I can improve performance, implement scalable cloud architectures, and lead technical delivery within collaborative, agile teams.

I am a results-driven Full-Stack Python Engineer with a decade of experience building high-performance SaaS solutions, specializing in backend development, database optimization, CI/CD pipelines, and API integration. I lead technical projects from concept to deployment and work effectively in Agile environments.

My recent roles include Full Stack and Back-end Engineering positions where I partitioned large PostgreSQL tables to cut query latency, migrated REST APIs to FastAPI to increase throughput, and implemented CI/CD workflows to enable zero-downtime releases. I have built analytics dashboards, serverless endpoints, and inventory-management components used by hundreds of users.

I am pragmatic and metrics-driven: I focus on measurable improvements such as reducing latency, cutting infrastructure costs, and improving release efficiency. I enjoy mentoring teams, architecting cloud-native services, and delivering reliable, maintainable systems that scale.

Experience

Work history, roles, and key accomplishments

Full Stack Engineer

SKUify Limited

Dec 2023 - Dec 2024 (1 year)

Optimized PostgreSQL with table partitioning to reduce query latency 30% and improved API response times 50%; built seller analytics dashboards integrating Amazon SP-API for 500+ users and maintained Jenkins CI/CD for zero-downtime releases, improving release efficiency 20%.

Python Django PostgreSQL Celery Jenkins React API Integration Database Optimization

Back-end Engineer

FreeCast Inc

Sep 2022 - Nov 2023 (1 year 2 months)

Migrated REST APIs from Django REST Framework to FastAPI, increasing throughput 40% and reducing latency; deployed serverless AWS Lambda container endpoints to cut infrastructure costs 25% and delivered features in two-week Agile sprints.

Python fastAPI Django AWS Lambda Docker MySQL GitHub Actions API Performance

Full Stack Engineer

Sum Software Limited

Nov 2021 - Jul 2022 (8 months)

Built the 'Journey' component for Sumfully SaaS to streamline inventory management for Amazon sellers and developed Python scripts to generate reports from SOAP-based Amazon MWS.

Python Django DRF React PostgreSQL Celery Jenkins

Technical Consultant

World Bank Group

Dec 2021 - Jan 2022 (1 month)

Developed a legal analytics prototype in Python/Django to analyze 10,000+ court judgments for bias detection, accelerating legal research and insights extraction.

Python Django Data Analysis MySQL Prototyping Legal Analytics

Lead Developer

Maxum Data Limited

Jun 2015 - Oct 2021 (6 years 4 months)

Built the mPort mobile number portability tracker serving 10,000+ users, created a tool increasing toll-free number adoption 35%, and wrote Lua scripts for FreeSWITCH that cut customization time 50%.

Python Django MySQL Lua System Design Automation

Senior Python Engineer

Domains Bot

Jun 2015 - Sep 2015 (3 months)

Redesigned database schema to improve query performance by 10% for core application workloads.

Python Django MySQL Database Design Performance Tuning

Senior Python Engineer

SunUp Financial LLC

May 2014 - Jan 2015 (8 months)

Contributed to the 'Balance Credit' onboarding web project, collaborating with design to improve user experience for payday loan customers.

Python Django MySQL jQuery UX collaboration Web Development

Senior Python Engineer

Soko Inc.

Jul 2013 - Apr 2014 (9 months)

Led Android mobile app development for artisans and contributed to REST API development and framework migration from Django to Pyramid for the Soko platform.

Python Django Pyramid REST APIs Android MySQL

Senior Python Engineer

Sweet Relish LLC

Dec 2012 - Jul 2013 (7 months)

Fixed critical bugs in a jQuery Mobile application to enhance performance and stability of the mobile web experience.

Python Django MySQL JQuery Mobile Debugging Performance Optimization

Lead Engineer

Code Painters LLC

Sep 2012 - Nov 2012 (2 months)

Led development of a gym management website with subscription management and session reservation features.

Python Django MySQL jQuery Web Application Development Payments

Python Engineer

Apartment Rentals

Apr 2012 - Apr 2012 (0 months)

Performed bug fixes and maintenance on the Apartment Rentals web project to improve reliability.

Python Django MySQL jQuery Debugging

Django Developer

MANteresting

Mar 2012 - Apr 2012 (1 month)

Led development of v1 REST APIs for the MANteresting mobile app, ensuring Agile delivery and API reliability.

Python Django REST APIs MySQL jQuery Agile

Software Engineer - Intern

Alliance Technologies Limited

Sep 2011 - Dec 2011 (3 months)

Developed a mobile proof-of-concept for the A1 ERP, demonstrating mobile access to core ERP features.

Java J2ME PostgreSQL Mobile Development Prototyping

Education

Degrees, certifications, and relevant coursework

Jomo Kenyatta University of Agriculture and Technology

Bachelor of Science, Computer Science

Grade: Second Class Honors, Upper Division

Bachelor of Science in Computer Science with Second Class Honors, Upper Division; completed coursework in programming, data structures and algorithms, database management, and computer security.