Open to opportunities

Mark Barrack

@markbarrack

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Full Stack Engineer specializing in React, Node, and Python.

Kenya

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What I'm looking for

I am seeking a collaborative, Agile team role where I can build user-focused full-stack applications, leverage cloud and DevOps practices, and grow into greater technical leadership.

I am a Full Stack Engineer with strong experience across front-end and back-end development, focused on building user-centric applications using JavaScript, Python, React.js and Node.js. I thrive in Agile teams and prioritize delivering high-quality, maintainable solutions on schedule.

At Simplex Technologies I developed and maintained web applications, built and managed APIs, and implemented automated testing and CI pipelines with Jenkins, improving release reliability. Earlier, as a Junior Developer at XYZ Solutions, I contributed to full-stack projects with Django and MongoDB and helped create responsive UI components.

I hold a Software Development Bootcamp certificate and a Cisco Certification, and I enjoy applying cloud and DevOps practices (AWS, GCP, Docker, Kubernetes) to streamline deployments and improve scalability. I am committed to collaborative problem solving and continuous improvement.

Experience

Work history, roles, and key accomplishments

Customer Support Associate

Simplex Technologies

Jan 2022 - Dec 2024 (2 years 11 months)

Managed high-volume customer inquiries across phone, email, and chat, achieving a 90% first-contact resolution rate and reduced average response time by 30% through process optimizations.

Customer Support PostgreSQL Technical Troubleshooting Data Analysis Stakeholder Management Process Improvement Coaching

Full Stack Engineer

Simplex Technologies

Jan 2022 - Dec 2024 (2 years 11 months)

Developed and maintained React and Node.js web applications, built and managed APIs, and implemented CI pipelines with Jenkins to improve deployment reliability and delivery cadence.

React Node Express JavaScript Jenkins REST APIs CI CD Docker PostgreSQL

Junior Developer

bytenuru

Jan 2020 - Dec 2021 (1 year 11 months)

Assisted in full-stack application development using Django and MongoDB, implemented responsive UI components, and improved code quality through peer reviews within agile sprints.

Django MongoDB JavaScript HTML CSS Responsive Design Agile Git Code Review

Customer Service & Data Assistant

Biztimam Ventures

Jan 2020 - Dec 2021 (1 year 11 months)

Provided support for office supplies, printing and IT services, used SQL to reconcile accounts and produce weekly reports, and implemented a customer feedback system that increased satisfaction by 15%.

Customer Service SQL PostgreSQL Inventory Management Reporting CRM Microsoft Office

Support Technician

Bytenuru

Mar 2018 - Dec 2019 (1 year 9 months)

Assisted clients with software, internet connectivity and router configuration, handled billing disputes via SQL reconciliation, and resolved bulk SMS delivery failure within 24 hours.

Technical Support SQL System Monitoring Documentation

Education

Degrees, certifications, and relevant coursework

Cisco

Certification, Networking

2023 - 2023

Completed a Cisco certification focused on networking and related technologies in 2023.

General Assembly (Nairobi)

Bootcamp Diploma, Software Development

Graduated from a Software Development Bootcamp at General Assembly in Nairobi, completing practical full-stack training.

Bytenuru

High School Certificate, General Secondary Education

Grade: B+ in English

Activities and societies: Assisted clients with software support, internet connectivity troubleshooting, router configurations, and bulk SMS delivery resolution.

High School Certificate obtained in Nairobi; coursework and activities included technical support tasks and English proficiency (Grade: B+).