Ayub J. - Consultant API Development

Islamabad, Pakistan

Experience

Mar 2023 - Present

2 years 10 months

Consultant API Development

Systems Limited

Spearheaded the development of innovative, high-performance APIs aimed at optimizing latency within existing Microservices, contributing to the enhancement of API offerings and customer satisfaction.
Played a pivotal role in leveraging MongoDB aggregation pipelines and indexes to optimize data retrieval and storage processes, ensuring seamless integration and scalability for our solutions.
Implemented rigorous load testing methodologies using JMeter to evaluate API’s performance and scalability, leveraging insights to drive strategic enhancements and meet the evolving needs of developers and users.
Collaborated closely with cross-functional teams to synchronize caches across various deployment environments, facilitating seamless integration and maximizing functionality.
Utilized Spring Batch to streamline batch processing workflows, enabling efficient data processing and management capabilities within our API infrastructure.
Championed code refactoring initiatives aimed at enhancing code quality and maintainability, aligning with the organization’s commitment to delivering robust and reliable solutions.
Conducted thorough code reviews and provided actionable feedback to ensure the development of high-quality, developer-friendly APIs, fostering a culture of excellence and continuous improvement within the product development team.
Mentored and coached junior team members, providing guidance and support to foster their growth and proficiency in development and related technologies.

Jan 2021 - Feb 2023

2 years 2 months

Senior Software Engineer

Techlogix

Built Docker images and containers for microservices developed in Java Spring Boot.
Developed REST APIs with WSO2 EI and ensured successful deployment on Micro Integrator Server.
Implemented backend CRUD operations, utilizing JPA and Java Spring Boot for persistence and application layers.
Enhanced application security by implementing OAuth authentication and Spring Security.
Worked on Apache ActiveMQ for intermodular communication.
Handled complex DML and DDL database tasks, developed SQL stored procedures, triggers and sequences.
Developed UI using Angular 6, HTML5, CSS3 and Angular Material.
Integrated DWT, Outlook SMTP, SMS services such as Infobip and Twilio, Etisalat Payment Gateway and 1Bill.
Ensured the technical feasibility of UI/UX.
Redeveloped legacy backend services and improved performance by 50%.
Trained and mentored junior developers and engineers, teaching Java, Node.js and Angular skills and working to improve overall team performance.

Aug 2018 - Dec 2020

2 years 5 months

Software Engineer

Techlogix

Facilitated the data integration vertical and worked extensively on BI reports using PDI and PRD.
Implemented business validations using JavaScript to ensure that the client’s flagship product is customized as per requirements.
Worked with the project manager and business analyst to design and develop BI reports (parameterized, subreports, crosstabs) and ensure successful deployments on BI Server.
Responsible for design and development of ETL processes for data migration.
Developed SQL scripts to migrate setup configurations between Stage, Production and UAT instances.
Successfully conducted numerous on-site and off-site requirements workshops with multiple stakeholders.
Identified business process improvements and determined appropriate features required to implement.
Reviewed project specifications and designed technology solutions that met or exceeded performance expectations.