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Daniel Sim

@danielsim

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Staff software engineer with 12 years of experience

United States

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What I'm looking for

Looking for a challenging role that leverages my technical expertise and leadership skills to drive business growth and innovation, with a focus on web application development, machine learning, data analysis, and cloud services.

As a staff software engineer with 12 years of experience, I have developed a strong expertise in Python, Django, Flask, Cloud services, and Machine Learning. My proficiency in transforming business needs into software solutions and balancing rapid delivery with high-quality standards has been demonstrated in multiple projects.

Throughout my career, I have worked on various projects, including migrating monolithic banking systems to cloud-native Microservices architecture, developing high-performing APIs, and integrating machine learning pipelines. My experience in leading cross-functional teams and mentoring junior developers has honed my skills in promoting engineering practices, coding standards, and guidelines.

I am passionate about staying up-to-date with the latest technologies and trends, with a strong foundation in mathematics and a keen interest in data analysis and machine learning. I am confident in my ability to leverage my skills and experience to drive business growth and innovation.

Experience

Work history, roles, and key accomplishments

Staff Software Engineer

Tally

Jun 2023 - Aug 2024 (1 year 2 months)

Migrated a monolithic banking system to cloud-native Microservices architecture using Django REST framework, AWS Lambda and API Gateway, while maintaining compliance with NIST standards.
Applied Save-and-Forward (SAF) methodology, built an extra bank server for saving uncompleted transactions and handling again after 1 min.

Python Django Flask AWS Lambda EC2 RDS Elasticsearch Microservices SOLID NIST

Senior Backend Engineer

Google

May 2020 - May 2023 (3 years)

Updated backend services for Google Search Engine using Django REST framework, ensuring high availability and low latency performance, improving the efficiency of search algorithms.

Python Django Rest Framework TensorFlow Amazon SageMaker Machine Learning Containerization Orchestration

Senior Software Engineer/Technical Lead

Redbox

May 2013 - Feb 2020 (6 years 9 months)

Maintained MVT architecture Django 1.0 application applying SOLID principles in refactoring legacy codebases, improving code maintainability and scalability.