Leonard Sim

Senior Software Engineer

Andela•  April 2022 - May 2024•  Remote

- Developed and maintained full-stack web applications using technologies like JavaScript, Python, Ruby, Node.js, Django - Reduced bug rates by 30% through rigorous code reviews and best practices - Utilized cloud platforms such as AWS, Google Cloud, or Azure for eployment and scaling - Mentored junior developers and contributed to knowledge sharing within the Andela community - Stack: Angular, Django, Node.js, React, Ruby

Software Engineer

GoGoGrandparent•  June 2020 - January 2022•  Remote

- Developed 30+ new software solutions by analyzing system performance standards. - Integrated existing software into 13 upgraded, modified systems for higher performance. - Developed and executed 200+ test procedures for software components. - Analyzed 30+ user requirements to derive technical software design and performance requirements. - Stack: React.js, ASP.NET, MongoDB, AWS

Software Engineer

Digitalax•  September 2018 - March 2020•  Remote

- Engineered a robust API infrastructure for a high-profile NFT marketplace, facilitating the seamless exchange of over 40,000 NFTs and driving a monthly transaction volume increase of 20% - Implemented comprehensive smart contract audits and security measures that led to the platform's recognition as one of the most secure in the industry, with zero breaches or exploits reported - Collaborated with cross-functional teams to integrate blockchain technology into traditional web applications, which expanded the company's service offerings and resulted in a 15% increase in B2B partnerships - Stack: Python, Django, Solana, Solidity

Software Engineer

CreditCaptial.io•  October 2017 - July 2018•  Remote

- Accelerated real-time data access by customers to 97% through a NodeJS web app - Tripled return customer rate to 66% by installing a web app to allow data transfer in CSV files - Improved bug detection to 99%, reducing customer complaints to less than 10 weekly - Stack: Node.js, Angular, PostgreSQL, Jest, Enzyme

Software Engineer

Ram Technologies•  November 2016 - August 2017•  Remote

- Successfully launched a customer management dashboard that improved data accessibility and user engagement by 30% - Enhanced application load time by 25% through performance optimization techniques - Received positive feedback from users for the intuitive design and fuctionality of the application - Collaborated with backend developers to integrate APIs and services, ensuring seamless data flow between the frontend and PostgreSQL databases - Stack: React, Redux, PostgreSQL, Material UI