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Steven OnojaSO
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Steven Onoja

@stevenonoja

DevOps Engineer and Full-Stack Developer specializing in scalable AWS infrastructure and automated DevSecOps CI/CD.

United Kingdom
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What I'm looking for

I’m looking for a team where I can own CI/CD and cloud infrastructure end-to-end, strengthen DevSecOps across the pipeline, and improve reliability with monitoring and automation—while still building customer-facing features when it adds value.

I’m a results-driven DevOps Engineer and Full-Stack Developer with 5+ years of experience designing scalable cloud infrastructure, automating CI/CD pipelines, and building modern web applications. I focus on reliability, measurable delivery improvements, and security that’s integrated into everyday workflows, not added after release.

At Cloudhight Consulting, I took direct ownership of CI/CD pipeline development using Jenkins, cutting average deployment lead time from four hours to under one hour. I redesigned the end-to-end delivery process—rewriting APIs and modernising the toolchain—reducing delivery lead time by 73% and generating estimated annual savings of $800K. I also automated fleet updates with Bash + Ansible, standardised configuration to drive a 40% drop in customer-reported incidents, and integrated Trivy, Checkov, and SonarQube across the DevOps lifecycle to shift vulnerability detection left.

Before that, I built and maintained customer-facing products as an Applications Developer, using Next.js, React, and REST APIs to keep UX clean and predictable. I also developed a React Native streaming application backed by Appwrite, including real-time updates and offline-graceful behavior, and I’ve consistently contributed through Agile/Scrum while improving code quality and operational documentation.

Experience

Work history, roles, and key accomplishments

CC
Current

DevOps Engineer

Cloudhight Consulting

Mar 2025 - Present (1 year 3 months)

Owned AWS infrastructure and CI/CD pipeline development with Jenkins, cutting average deployment lead time from four hours to under one hour. Redesigned the delivery process—rewriting APIs and modernising the toolchain—to reduce delivery lead time by 73% and deliver estimated annual savings of $800K.

RL

Applications Developer

RUSUL Ltd

Jan 2023 - Mar 2025 (2 years 2 months)

Built and maintained a customer-facing website using Next.js and React, including a responsive redesign that improved usability on mobile and low-bandwidth connections. Developed a React Native streaming app backed by Appwrite and integrated REST APIs to deliver predictable front-end UX and auth flows.

NN

Junior Web Developer

NNPCL

Apr 2021 - Dec 2022 (1 year 8 months)

Implemented responsive UI components with React, HTML5, and CSS3, integrating third-party REST APIs while ensuring consistent cross-device behavior. Optimised existing Java applications by debugging, profiling, and making algorithmic improvements that reduced processing time on key workflows.

Education

Degrees, certifications, and relevant coursework

Ulster University logoUU

Ulster University

Master of Science, Computer Science & Technology

2025 -

Completing an MSc in Computer Science & Technology with Business Development at Ulster University.

Afe Babalola University logoAU

Afe Babalola University

Bachelor of Engineering, Computer Engineering

2018 - 2023

Completed a BEng in Computer Engineering at Afe Babalola University.

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