Daniel Rangel

Software Engineer

Brooklyn, New York, United States10 yrs 7 mos experience
Highly Stable

Key Highlights

  • Expert in developing scalable microservices architecture.
  • Proven track record of increasing user engagement through A/B testing.
  • Skilled in creating real-time APIs for high-traffic applications.
Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in SaaS and AdTech industries.

Contact

Skills

Core Skills

MicroservicesA/b TestingApi DevelopmentData Engineering

Other Skills

Amazon Web Services (AWS)Apache KafkaCCSSDynamoDBETLHTMLJavaScriptMicrosoft ExcelMicrosoft SQL ServerMongoDBMySQLNestJSPHPPhotoshop

Experience

10 yrs 7 mos
Total Experience
4 yrs 11 mos
Average Tenure
8 mos
Current Experience

Justworks

Software Engineer

Oct 2025Present · 8 mos · New York, New York, United States

Novo

Senior Software Engineer - Growth

Feb 2022Nov 2024 · 2 yrs 9 mos · New York, New York, United States · Hybrid

  • Developed backend microservices using NestJS for key domains like Rewards and Recommendations.
  • Achieved a 30% increase in accounts opened through iterative experiments on Referrals and onboarding features.
  • Implemented A/B testing and created a no-code plugin for the marketing team, enhancing their experimentation capabilities.
  • Managed the full SDLC for Growth services, ensuring high availability through Agile methodologies.
NestJSA/B TestingMicroservices

Flashtalking, inc.

Web Services Engineer

Dec 2014Feb 2022 · 7 yrs 2 mos · New York, New York · On-site

  • Developed real-time product recommendation APIs that served billions of ad impressions for major retailers like Walmart and Nissan.
  • Created automated ETL pipelines to efficiently ingest and process product catalogs, optimizing data storage in MongoDB and DynamoDB.
  • Designed an internal DIFF algorithm tool that significantly increased productivity for campaign managers by automating HTML/JS ad tag processing.
MongoDBDynamoDBETLAPI DevelopmentData Engineering

Education

University of Miami

Bachelor of Science (BS) — Computer Science

Jan 2009Jan 2013

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