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Collins Onyetube
Software Engineer
Accra,Greater Accra
Summary
Results-driven Software Engineer with 5 years of experience in developing robust and scalable applications. Proficient in Node.js, React.js, SQL, NoSQL, Java, AWS services, Docker, Git, and Apache Kafka. Successfully delivered 15+ projects, meeting 100% of project deadlines. Improved application performance by 30% through optimization techniques. Collaborated with cross-functional teams, ensuring seamless integration and delivering exceptional user experiences.
Overview
6
6
years of professional experience
5
5
Certificates
4
4
years of post-secondary education
Work History
Software Engineer III
Omnipresent Group Limited
Remote, United Kingdom
02.2022 - 05.2023
- Developed scalable web applications using Node.js, React.js and AWS services that comfortably handled high volumes of traffic.
- As a key member of the development team, I designed and implemented the Omnicontractor application using cutting-edge technologies, integrated Rapyd API for payments, and integrated Salesforce to track opportunities.
- Optimized Postgres database performance through the implementation of indexing and partitioning strategies, resulting in 40% faster query response times and a 25% overall improvement in application performance.
- Designed and implemented highly available microservices architecture on Node.js and AWS services that reduced application response times by 50% and infrastructure costs by 30%.
- Implemented robust monitoring solutions with Datadog to provide real-time visibility into application performance for proactive issue resolution.
- Built serverless APIs using AWS Lambda and API Gateway, including unit tests and end-to-end testing with Jest and Cypress for seamless delivery.
Full Stack Engineer
Safaricom PLC
Remote, Kenya
11.2021 - 10.2022
- Built and maintained a fault-tolerant web application with ReactJS and NodeJS hosted on AWS, resulting in a 50% increase in user engagement and a 30% boost in revenue.
- Reduced forgotten password support tickets by 30% and cut user account creation time by 20% through the implementation of Amazon Cognito authentication and authorization.
- Improved email deliverability by 30%, click-through rate by 15%, and conversion rate by 10% by integrating Amazon SES for transactional and marketing emails.
- Decreased processing time by 50% and infrastructure costs by 30% by developing and deploying serverless Lambda functions using AWS.
- Cut storage costs by 40% and improved data retrieval speed by 20% by creating and managing several S3 buckets on AWS.
- Optimized Elasticsearch for search functionality, which resulted in a 70% increase in search accuracy and speed, as well as a 35% improvement in user satisfaction.
Mid Software Engineer
Financial Application Systems Limited, FASYL
Accra, Ghana
03.2018 - 11.2022
- Optimized Access Bank's Ghana transaction alerts and monthly statements delivery speed by 50% through a successful redesign and restructuring of the service.
- Developed efficient Restful APIs for backend business logic, utilizing Java (Spring Boot) and interfacing with an Oracle database.
- Leveraged microservices, web services (REST/SOAP/WSDL/XML), and NoSQL to build modern applications and boost response time, availability, efficiency, and durability for FASYL TECHNOLOGY GROUP's IPs.
- Successfully integrated software solutions on multiple core banking systems such as Flexcube and Finacle.
- Mentored new developers in essential skills and company workflows to facilitate growth.
Senior Backend Engineer
Alertapp inc
Accra, Ghana
03.2020 - 10.2020
- Designed and optimized a scalable API architecture for a high-traffic web app, decreasing response time by 50% and increasing user retention by 30%.
- Implemented real-time chat functionality with WebSockets, boosting engagement by 40% and satisfaction by 25%.
- Improved performance of large-scale MySQL database by reducing query time by 20%, resulting in a 15% increase in overall application performance.
- Migrated legacy API to Google Cloud Platform, reducing infrastructure costs by 30% and improving scalability by 50%.
- Developed a custom email notification system with Mailer, increasing user engagement by 20% and satisfaction by 15%.
- Integrated external APIs using Node.js and Express.js, leading to a 15% increase in user engagement and retaining an additional 10% of users.
Junior Full Stack Developer
Platinum Global Technology Consult, PGTC
Accra, Ghana
10.2017 - 10.2018
- Developed and launched a responsive PHP website within the deadline, resulting in a 15% increase in website traffic.
- Built a custom PHP blog system, increasing user engagement by 20% and driving a 10% increase in website traffic.
- Optimized web app performance by designing a dynamic PHP application with MySQL, reducing load time by 30% and improving performance by 25%.
- Improved website search functionality by implementing a custom PHP algorithm, cutting search times by 25% and enhancing user engagement by 8%.
- Boosted user satisfaction and sales for ecommerce clients by integrating third-party APIs and payment gateways using PHP and CakePHP, leading to a 5% increase in online sales and 10% more satisfied customers.
- Created an efficient custom admin dashboard with PHP and CakePHP to manage user data, halving the admin workload.
Education
Bachelor of Science - Computer Engineering
Accra Institute Of Technology
Accra, Ghana 08.2013 - 07.2017
Skills
HTML, CSS, JavaScript
NoSQL, SQL, PLSQL
AWS Services (EC2, S3, Lambda, RDS etc)ReactJS
NodeJS
JAVA (Spring Boot)
Python
PHP (Flask)
RESTful APIs / SOAP API/ GraphQl
GIT
Apache Kafka, RabbitMQ
Docker
Web-based software engineering
Accomplishments
- Mentored 5 new employees to bring them up to speed on projects, resulting in quicker overall completion milestones.
- Developed solid working knowledge of engineering, design and architecture as the Lead Software Developer on a team of 4.
- Resolved existing performance issues in the database which optimized the system 40%.
Certification
HackerRack SQL
Interests
Work Availability
monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote
The real test is not whether you avoid this failure, because you won't.It's whether you let it harden or shame you into inaction, or whether you learn from it; whether you choose to persevere.
Barack Obama
Timeline
Software Engineer III
Omnipresent Group Limited
02.2022 - 05.2023
Full Stack Engineer
Safaricom PLC
11.2021 - 10.2022
HackerRack SQL
07-2021
HackRacker Nodejs
07-2021
HackRacker Java
07-2021
Senior Backend Engineer
Alertapp inc
03.2020 - 10.2020
HNGI Certificate (Backend Developer)
10-2019
Hackathon Certificate of Participation
04-2019
Mid Software Engineer
Financial Application Systems Limited, FASYL
03.2018 - 11.2022
Junior Full Stack Developer
Platinum Global Technology Consult, PGTC
10.2017 - 10.2018
Bachelor of Science - Computer Engineering
Accra Institute Of Technology
08.2013 - 07.2017