Marlon C.
Back-end and Systems Engineer

Skills

.NET

Asp.net

Sql

Mongodb

Redis

Microsoft Azure

Amazon Aws

Marlon is available for hire

Hire Marlon C.

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Bio

Software engineer with 15 years of experience, primarily in the e-commerce and payments sectors. Responsibilities have included leading technical teams, and overseeing the architecture, design, and maintenance of critical, high-performance solutions. Committed to the implementation and propagation of best practices in software development, with a strong emphasis on security, observability, and scalability.

Engaged in the active development and maintenance of source code, demonstrating exceptional collaborative skills in cross-functional discussions to align expectations, refine requirements, and implement agile methodologies. Maintains a keen interest in comprehending the business vision behind technological solutions.

Skill set and experiences are well-suited for roles including software engineer, technical lead, or software architect.

Software Development Specialist I
10/1/2020 - 9/1/2021

Developed a comprehensive solution for card tokenization through successful integration with various card brands. Spearheaded the development of a robust system for managing and launching notifications, ensuring timely and relevant communication across platforms. Engineered and implemented a strategic approach for standardizing instrumentation in applications, enhancing consistency and reliability in performance metrics.
Software Development Specialist II
9/1/2021 - 12/1/2023

Led the development of a new ecommerce solution and successfully containerized the main existing APIs. Managed API configurations including MTLS and OAuth, and deployed Application Performance Monitoring (APM) solutions for key APIs. Developed scalable solutions for recurring payment charges, transaction polling, and recovery. Created a plug-and-play solution for integrations with Pix and designed an effective onboarding accreditation solution with acquirers. Demonstrated strong expertise in API management, containerization, and continuous integration processes.
Software Development Specialist
6/1/2017 - 10/1/2020

Defined and adopted NoSQL at strategic points in the payment transaction flow, optimizing data management and operations. Developed and integrated solutions with major market wallets, enhancing payment processing options. Created a robust load-balancing solution between acquirers to ensure reliability and efficiency in transaction handling. Formulated and implemented a comprehensive strategy for integration with the company's sub-acquiring modules. Devised strategies for the use of distributed cache and circuit breaker, improving system resilience and performance. Developed a strategy for ensuring idempotence of requests, bolstering transaction consistency and reliability.
Senior Software Engineer
4/1/2010 - 6/1/2017

Refactored the transactional core of a payment gateway to enhance performance and reliability. Developed a new e-commerce API for Cielo and constructed a new payment gateway API to streamline transactions. Created a comprehensive solution for the registration of boletos and facilitated bank reconciliation with major financial institutions, ensuring efficient processing and accuracy.
Software Engineer
12/1/2007 - 3/1/2010

Developed proficiency in designing and implementing the financial and accounting module of an enterprise ERP system. Mastered core technologies and frameworks including Java, Spring, Hibernate, and Apache Maven. Leveraged JavaScript, AngularJS, and HTML5 for front-end development, ensuring seamless user interface and experience. Demonstrated expertise in database management with MySQL, including complex query optimization and data integrity enforcement. Utilized RESTful APIs for robust system integration, enhancing interoperability with other systems. Adhered to Agile Scrum methodologies, contributing to iterative development and continuous improvement. Employed version control systems Git and Bitbucket for efficient code management and collaboration. Delivered comprehensive unit and integration testing using JUnit and Mockito to ensure the reliability and performance of the module.