Esther O.

Senior Product Engineer at Intercom
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Contact Information
us****@****om
(386) 825-5501
Location
Dublin, County Dublin, Ireland, IE
Languages
  • French Elementary proficiency
  • English Native or bilingual proficiency
  • Yoruba Native or bilingual proficiency

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5.0

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Chris O'Sullivan

Esther is a back end legend. She whipped our Heroku pipeline into shape - including effortlessly using AWS lambda to ensure that Elasticsearch instances are setup and torn down as needed. She spearheaded our migration from lexoo.co.uk to lexoo.com (without losing any of our emails). She was the Senior Developer in the GMT timezone, and provided always provided useful feedback and mentorship. She gave a great talk at last year's Rubyconf on how to build a Ruby Web Server from scratch. Esther is kind, generous, and a great person to work with. She was always looking at ways to improve the codebase and helped me figure out the best practices for remote working. You'd be lucky to get her.

Najaf Ali

Esther was the wall to our backs whenever we were faced with bewildering, difficult-to-analyse bugs. She is an accomplished developer with a strong understanding of OS fundamentals, database internals, Ruby internals, and more generally, the hard technical details of whatever she ends up working with. She is open, communicative, forward-thinking, and able to manage a backlog in such a way that delivers maximum value for any team she’s working on. Also, did you know she got through as a founder at YC17!? If your organisation builds software then you should stop reading this and hire her immediately.

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Credentials

  • Scaling Product Delivery
    Reforge
    Oct, 2021
    - Nov, 2024

Experience

    • United States
    • Software Development
    • 700 & Above Employee
    • Senior Product Engineer
      • Oct 2022 - Present

    • Product Engineer
      • Jul 2020 - Oct 2022

    • United Kingdom
    • Legal Services
    • 1 - 100 Employee
    • Full Stack Software Developer
      • Nov 2018 - Jul 2020

    • United Kingdom
    • Internet Publishing
    • 1 - 100 Employee
    • Senior Software Developer
      • May 2017 - Oct 2018

      - Worked on backlog of tasks for events ticketing platform one of which was real time batch background jobs processing using a combination of ActionCable, WebSocket, Redis, VueJS and Turbolinks with integration and controller test specs. - Implemented integration with payment and mailing API for payments, billing, subscription, unsubscription and emailing jobs at several points in the customer order flow - Implemented a procurement data submission system with a distributed systems architecture. I was instrumental in all parts of the stack from building API endpoints, frontend interfaces, AWS lambda functions with SQS queues, architecting docker containers, writing tests and connecting it all in end-to-end system on a CI pipeline with test, staging and production environments on AWS. In addition, I wrote Terraform scripts to automate infrastructure resources creation on AWS for all environments. - Built an internal tool that automates fetching of content on Contentful and queueing contents in Buffer using both APIs hooked into our internal Slack channel for monitoring using Zapier webhook complete with unit tests deployed to Heroku. - Handled devops for a mobile virtual network operator for multiple environments involving SSH, Ansible, AWS, Softlayer, deployment operations, SSL certificates, etc. Show less

    • IT Services and IT Consulting
    • 1 - 100 Employee
    • CTO / Engineering Lead
      • Jun 2016 - Apr 2018

      - Co-founded Tress (W17) as the CTO/Engineering Lead. - I built Tress from scratch with 0 users to its peak when Tress had over 500,000 downloads on Android and iOS with great retention metrics (80,000 monthly active users and 30,000 weekly active users) - Built the backend APIs and microservices, designed the system architecture and was in charge of the whole backend engineering stack (Ruby, Rails, PostgreSQL, Redis, AWS, Heroku, Sidekiq, etc). - Responsible for the half of the Android and iOS mobile apps, in charge of the app logic, architecture and networking calls. - In charge of product rollout, integrating and monitoring analytics, learning from data and translating that into a product roadmap - Managed a team of 3 engineers in delivering a top-notch product & engineering team. Show less

  • Meteor Factory
    • Berlin, Germany
    • Software Engineer
      • Jul 2015 - 2016

      - Built well-tested applications for clients using several JS frameworks - Built designs created in PSD with code into a usable and maintainable web pages - I was on the core developer team for one of their clients - HealthNatives: a health social network in Berlin. - I was responsible for the frontend redesign, adding new features while maintaining the backlog of tasks and fixing bugs. - Built well-tested applications for clients using several JS frameworks - Built designs created in PSD with code into a usable and maintainable web pages - I was on the core developer team for one of their clients - HealthNatives: a health social network in Berlin. - I was responsible for the frontend redesign, adding new features while maintaining the backlog of tasks and fixing bugs.

    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Frontend Developer Intern
      • Jun 2015 - Jul 2015

      Worked on homepage and dashboard redesign Worked on homepage and dashboard redesign

  • Big Cabal Media
    • Surulere, Lagos
    • Administrative/Operations Associate
      • May 2014 - Jul 2014

      Performed day-to-day administration and operations tasks for TechCabal.com and Big Cabal Media the agency / parent company. Performed day-to-day administration and operations tasks for TechCabal.com and Big Cabal Media the agency / parent company.

    • United Kingdom
    • International Trade and Development
    • 700 & Above Employee
    • Trade Development Intern
      • Aug 2008 - Dec 2008

      UKTI serves as the link between businesses in the UK and Nigeria. I was actively involved in dealing with UK companies that want to establish strategic partnerships with Nigerian companies and vice versa. My team at UKTI organised and participated in several international trade events among which were The London Chamber of Commerce & Industry events and The African Caribbean Trade Mission events. UKTI serves as the link between businesses in the UK and Nigeria. I was actively involved in dealing with UK companies that want to establish strategic partnerships with Nigerian companies and vice versa. My team at UKTI organised and participated in several international trade events among which were The London Chamber of Commerce & Industry events and The African Caribbean Trade Mission events.

Education

  • Y Combinator
    2016 - 2017
  • MEST Africa
    Certificate, Software Development and Entrepreneurship Training Program
    2014 - 2016
  • Arden University
    BSc (Hons), Computing (Mobile Computing)
    2017 -

Community

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