Daniel Marchena Parreira

Software Engineer

San Francisco, California, United States7 yrs 9 mos experience

Key Highlights

  • Over 15 years of experience in software engineering.
  • Expert in architecting and scaling cloud infrastructure.
  • Proven leadership in building high-performing engineering teams.
Stackforce AI infers this person is a SaaS and Cloud Infrastructure expert with extensive experience in Distributed Systems and Full-Stack Development.

Contact

Skills

Core Skills

Amazon Web Services (aws)TerraformDistributed SystemsMlopsMicrosoft AzureFull-stack Development

Other Skills

Go (Programming Language)TemporalJavaKotlinGroovyTypeScriptDatadogPagerDutyTerragruntReactGoDatabricksPrefectJavaScriptKubernetes

About

A software engineer with 15+ years of experience architecting and scaling systems from the ground up, passionate about building and mentoring high-performing engineering teams. You can find some of my open-source projects in the featured section below.

Experience

7 yrs 9 mos
Total Experience
1 yr 4 mos
Average Tenure
9 mos
Current Experience

Netflix

Software Engineer

Sep 2025Present · 8 mos · Los Gatos, CA · On-site

  • Working on Cloud Infrastructure
Go (Programming Language)TemporalTerraformJavaKotlinGroovy+1

Fortis games

Principal Software Engineer

Jul 2023Aug 2025 · 2 yrs 1 mo · San Francisco, CA · Hybrid

  • Designed and developed an infrastructure platform (compute, database, CDN, load balancer, observability, CI/CD, etc) that hosts and scales all shared transactional APIs used by our games (e.g. match-making, geo location, tos, authentication, player data, marketplace, remote config, etc.). Game teams across the company also use this infrastructure platform to deploy their game servers.
  • Created the infrastructure team inside the company and staffed it from three engineers to twelve. This includes hiring/training an Engineering Manager, another Principal, a Staff infrastructure engineer and much more.
  • Responsible for maintaining and expanding a portfolio of more than fifteen API services and two front-end products. Technically leading a team of more than twenty engineers, promoting training sessions and mentoring.
  • Designed and deployed a company-wide distributed load testing platform (backend and frontend). This platform is used to load test all games before they get released.
Distributed SystemsAmazon Web Services (AWS)TerraformTypeScriptDatadogPagerDuty+5

Square

2 roles

Staff Software Engineer - Cash App

Feb 2022Jul 2023 · 1 yr 5 mos · New York, New York, United States

  • Architected and developed a Model Endpoint Provisioning Service that makes it seamless to deploy model endpoints on the cloud (AWS).
  • Onboarded Cash App's Features Store to Databricks and created their main backfill pipeline making the system ready for production.
  • Designed and implemented a proxy service to pipe data between Prefect (GCP) and AWS resources.
  • Designed and developed a system to ingest Change Data Capture (CDC) data from OLTP databases into a Lakehouse as Data Marts (OLAP).
Distributed SystemsMLOpsTerraformKotlinGoDatabricks+7

Staff Software Engineer - Square

Jul 2021Feb 2022 · 7 mos · New York, New York, United States

  • Designed and implemented a module to enable live and batch inference via AWS SageMaker endpoints on the model inference service.
  • Worked on integrating Block's main decision engine to Whylabs in order to enable live model monitoring (impacts both Square and CashApp).
JavaDistributed SystemsTerraformJavaScriptKubernetesAmazon Web Services (AWS)+1

Microsoft

Principal Software Engineer

May 2021Jul 2021 · 2 mos · Toronto, Ontario, Canada · Hybrid

  • Joined the Microsoft Teams organization, and both work and team were great, but I decided to leave in order to pursue an opportunity to be one of the founding members of the ML Ops team at Square.
Microsoft AzureDistributed SystemsElectronTypeScriptGraphQL

Amazon web services (aws)

2 roles

Senior Software Development Engineer - Amazon.com

Mar 2020Apr 2021 · 1 yr 1 mo · Toronto, Ontario, Canada

  • Led a team of 10+ engineers on the development of many initiatives such as a ChatBot, Training platforms, Real-time communication apps, CI/CD platform, Onboarding tools, and Scheduling systems.
  • Designed and implemented an inter-service communication proxy. This proxy handles millions of requests per day and was later utilized by other teams.
  • Mentored 5 engineers ranging from interns, juniors, and mid-tiers.
Distributed SystemsAmazon Web Services (AWS)TypeScriptAWS CDKJavaReact+1

Senior Software Development Engineer - AWS

May 2019Mar 2020 · 10 mos · Toronto, Ontario, Canada

  • Architected and developed a generic end-to-end Machine Learning pipeline to train and serve any ML model.
  • Developed a system to grade open-ended questions in Spanish using Machine Learning (project Santillana). Received a company prize for my work on this project. Support for other languages was later added with the help of the Amazon Translate service.
  • Worked on many PoCs where the team delivered completely functional Data Lakes and on-demand analytical environments to clients (gov and healthcare). During those engagements, I developed an AWS EMR JupyterHub integration with AWS Cognito in order for analysts to have full access to AWS services (especially AWS Athena) inside their notebooks by default.
Amazon Web Services (AWS)AWS CloudFormationHadoopApache AmbariDistributed SystemsJavaScript+1

York university

Graduate Research And Teaching Assistant

Sep 2018Apr 2019 · 7 mos · Toronto, Ontario, Canada

  • Teacher assistant for the "EECS 2311 Software Development Project" and "EECS 2030 Advanced Object-Oriented Programming" courses
  • Create dedicated material about CI/CD to help students test and deploy their apps
  • Restructured the Practises in Enabling Technologies Lab open-source codebase and documentation: https://github.com/PiETLab
JavaHadoopApache KafkaBCI

Prodigy game

Senior Full Stack Engineer

Oct 2017Aug 2018 · 10 mos · Toronto, ON

  • Led the development of an internal game tools team. From a one man operation to 15+ members today.
  • Developed a full-featured system that enables versioning and management of game assets, game stores, in-game transactions, physical toys, marketing campaigns, and operations.
  • Developed backend jobs and infrastructure to send notifications to more than 3+ million users.
DockerNodeJSAmazon Web Services (AWS)React.jsTypeScriptFull-Stack Development

Ibm

Senior Full Stack Engineer

Aug 2017Oct 2017 · 2 mos · Toronto, Ontario, Canada

  • Integrated BMOs mobile and web app with Google Analytics
  • Create a feature to enable users to view e-statements on both iOS and Android
  • Obs: Left this position for an opportunity to create a game-tools team at Prodigy Game
Angular.jsTypeScript

Shutterstock

Lead Full Stack Engineer (previously FlashStock)

Apr 2015Jul 2017 · 2 yrs 3 mos · Toronto, ON

  • Architected and developed a real-time video transcoding service, a portal for video makers, an algorithm to rank and match a company with the best possible "media-maker", a models portal, a public API for clients, and much more.
  • Tasked frequently to perform large-scale refactoring on critical sections of the application to increase readability, speed, and efficiency: MongoDB database indexation, database migrations/scaling, password migrations, complete front-end refactoring, etc.
  • Took care of the entire platform single-handedly (back-end, front-end, infra and operations) during a CTO transition. Also, documented all systems and transferred learnings to the new CTO.
  • Led a team of developers on multiple projects, mentoring and growing engineering. I joined when there were fewer than 10 employees, and left when we had 150+.
NodeJSAmazon Web Services (AWS)JavaScriptReact.jsAngular.jsVagrant+2

University of toronto

Research And Teaching Assistant

May 2014May 2015 · 1 yr · Toronto, Ontario, Canada

  • Implemented a system that enables professors to publish C language exercises and create test cases to validate student’s answers
  • Designed a full-feature online C debugger to help students walk through their code while solving an exercise
  • Built a public RESTful API in order to connect the system to other platforms
  • Teacher assistant for the “CSC209H: Software Tools and Systems Programming” course in which the system was used
  • ACM Paper: https://dl.acm.org/citation.cfm?id=2729094.2754852
  • Project Website: https://c-programming.onlinelearning.utoronto.ca/
CPythonDjangoDocker

Axxiom - tecnologia e inovação

Software Engineer Consultant

Jun 2013Dec 2013 · 6 mos · Belo Horizonte, Minas Gerais, Brazil

  • Worked as an external technical consultant at GASMIG as part of their SAP system migration project
  • Customized SAP CCS printing module to communicate with the government’s tax collection API and SAP FI
  • Implemented a middleware to connect SAP's CCS printing module to SAP ERP
ABAPSAP

Indra

Software Engineer Consultant

Jun 2010May 2013 · 2 yrs 11 mos · Belo Horizonte, MG

  • Worked as an external technical consultant at CEMIG as part of their SAP system migration project
  • Migrated in-house developed functionalities from SAP CCS EHP5 to EHP6 (ABAP/Java programming)
  • Responsible for planning and executing large-scale stress tests on the new platform
ABAPJavaSAPIBM Websphere

Fastdezine, inc.

Software Developer

May 2008Jun 2010 · 2 yrs 1 mo · Belo Horizonte, Minas Gerais, Brazil

  • Worked closely with CEO Ursula Aleixo on the architecture and development of the first version of Fastdezine.com
  • Responsible for supporting third-party companies on the development of the platform (front-end and back-end)
PHPMySQLApacheUMLFull-Stack Development

Education

York University

Master of Science - MSc — Computer Science

Jan 2018Jan 2021

University of Toronto

Bachelor's degree — Computer Science

Jan 2014Jan 2015

PUC Minas

Bachelor's degree — Computer Information Systems

Jan 2011Jan 2015

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