Cristian Julian Blandon Arellana
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Cristian Julian Blandon Arellana

Cristian Julian Blandon Arellana  new_releases

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Full Stack Developer
Bogota D.C., Colombia

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Résumé

Jobs verified_user 12% verified
  • A
    Software Engineering Consultant
    Affect Therapeutics
    Oct 2023 - Current (1 year 9 months)
  • AlleyCorp Sur
    Software Engineer IV
    AlleyCorp Sur
    May 2023 - Oct 2023 (6 months)
    AFFECT THERAPEUTICS - Senior Software Engineer (Platform Team) Affect Therapeutics is a US startup whose mission is focused on improving treatment and outcomes for people with substance use disorders. I played a Senior Software Engineer role focused on Frontend and Mobile development in the Platform team, responsible for the evolution and maintenance of internal tools and their connection to the mobile app through which users conduct their recovery treatments. Main contributions and achievements: - I participated in code writing, new feature development, maintenance, and technical decision guidance in an agile, cross-functional team along with designers and product managers. - I developed operational software to support the team's effor
  • C
    Relocation
    Career Break
    Nov 2022 - Apr 2023 (6 months)
  • Beat
    Software Engineer II
    Beat
    Jun 2022 - Nov 2022 (6 months)
    Performed a Senior Full Stack Developer role, working mainly with AWS, Golang, PHP, JavaScript, TypeScript, React, and its ecosystem. Main contributions: - I was part of an agile squad that worked within SCRUM methodology and was responsible for developing all the electro-mobility initiatives (Beat Zero category, Beat Tesla category, fleets, parking lots, and driver management). - Developed new microservices written in Golang with a CLEAN architecture, over a Docker and Kubernetes infrastructure, with sync (REST APIs) and async (Kafka) communication. - Supported PHP monolith maintenance and contributed to its migration to microservices. - Implemented and improved CI and CD pipelines with Jenkins and GitHub actions.
  • Laboratoria
    JavaScript Coach
    Laboratoria
    Oct 2021 - Current (3 years 9 months)
    - Led a cohort of more than 30 students during their 6 months of Laboratoria Full Stack Bootcamp program, leading daily huddles and Scrum ceremonies during the development of each project. - Provided personal and group tutorships about topics like HTML, CSS, Advanced JavaScript, JavaScript routing, AJAX Firebase and Firestore, React and Node.js.
  • Laboratoria
    Frontend Coach
    Laboratoria
    Oct 2021 - May 2022 (8 months)
    Main contributions: - Led a cohort of more than 30 students during their 6 months of Laboratoria Frontend Bootcamp program, directing daily huddles and Scrum ceremonies during the development of each project. - Provided personal and group tutorships about topics like HTML, CSS, Bootstrap, Advanced JavaScript, JavaScript Vanilla routing, AJAX, Firebase, React, and Node.js.
  • Melonn
    Mid Senior Cloud Engineer
    Melonn
    Sep 2021 - Feb 2022 (6 months)
    Led the Rates, pricing and billing squad for Melonn's operation in Colombia and Mexico, while developing development and maintenance tasks as a Full Stack Web Developer, working mainly with AWS, Node.js, GraphQL, Apollo server and Apollo client, and React. Main contributions and achievements: - I was in charge of the Seller Portal, its maintenance and creation of new features (sell order creation, return order creation, stock and catalog synchronization, and others). - Developed new microservices supported by AWS Lambdas and REST endpoints with AWS API Gateway, under a GraphQL scheme. - I integrated different eCommerce APIs (such as Magento, Wix, Vtex, Mercado Libre and others) with the Melonn application to automate seller procedures,
  • Globant
    NodeJS Developer
    Globant
    Jul 2021 - Aug 2021 (2 months)
    FALABELLA TECHNOLOGY | Full Stack Web Developer (Browse Squad) Main contributions: - Maintained and developed new features for the e-commerce platform (created with React and Next.js) home page, category landing pages, product detail pages, and product listing pages. - Configured the Headless Content Management System (Contentstack) for Frontend integrations and its components. - Worked with Microservices architecture (Docker + Kubernetes) and Micro frontends approach for end-to-end services development with Fastify, Redis, Firestore, Cloudflare workers, GCP, and GCP Functions. - I was part of a Kanban Agile Squad and was involved in all the Agile Ceremonies, working with team management tools like Jira and Confluence.
  • Globant
    N
    Node.js Developer (Full Stack)
    Globant, NextJS
    Jul 2021 - Current (4 years)
    - Maintained and developed new features for the e-commerce platform (created with React and Next.js) home page, category landing pages, product detail pages, and product listing pages.
  • H
    Full Stack Web Development Teaching Assistant
    Henry
    Apr 2021 - Jun 2021 (3 months)
    Led a team of 18 students during their Bootcamp phase in Henry, doing 1:1 sessions and daily huddles for doubts resolution and the successful culmination of homeworks and projects of the program syllabus. Main contributions: - I taught master classes about topics like HTML, CSS, advanced JavaScript, React & Redux, Data Bases (relational and NoSQL), and NodeJS with Express framework as the main technology to implement backend services. - Implemented Notion as the main workspace for the team, including supporting material, team wiki as the knowledge base, a database with calendar and to-do tasks, and a Kanban board to measure the progress of each topic and project.
  • H
    Full Stack Teaching Assistant verified_user Verified experience
    Henry
    Apr 2021 - Jun 2021 (3 months)
    - Led a team of 18 students during their Bootcamp phase in Henry, doing 1:1 sessions and daily huddles for doubts resolution and the successful culmination of homeworks and projects of the program syllabus. - I taught master classes about topics like HTML, CSS, advanced JavaScript, React & Redux, Data Bases (relational and NoSQL, and NodeJS with Express framework as the main technology to implement backend services.
  • Beat
    Customer Experience Coordinator verified_user Verified experience
    Beat
    Nov 2019 - Sep 2020 (11 months)
    Led the Beat Customer Experience Team in Colombia, conformed by 46 Front Office representatives and 4 Supervisors, located in 7 different cities and 9 different Experience Centers. Main contributions and achievements: - I was in charge of the hiring process of Junior and Senior CX Roles, escalating Beat operation every month, with more than 10 hirings made as Hiring Manager. - Established monthly KPIs and semestral OKRs for CX Supervisors and their representatives' teams, achieving determined goals 98% of the time. - Standardized reporting and automated weekly KPIs generation, increasing stakeholders' visibility and insights' presentation for more efficient decision making. - Created, planned, and executed Front Office attention transi
  • f
    Full Stack Developer
    freelance
    Jan 2019 - Apr 2021 (2 years 4 months)
    Check out my work at https://www.cristianblar.dev
  • Beat
    Customer Experience Supervisor
    Beat
    Jul 2018 - Oct 2019 (1 year 4 months)
    Led the first Beat Customer Experience team in Colombia (Bogota), with 20 Front Office representatives in 2 different offices. Main contributions and achievements: - Implemented from scratch the CX Operation KPIs, half of them for satisfaction (NPS, C-SAT, and Resolution %, measured through customer surveys) and the other half for productivity (AHT, AWT). - Established monthly goals for each KPI and defined (individually) semestral OKRs, reaching as a team the determined objectives (NPS > 80%, C-SAT > 4.8, Resolución > 90%, TMO < 600 s). - Developed automation tools for information collecting (from representatives to customers), avoiding 100% paper usage and reducing average handle time by 20%. - Created and implemented PIPs (Performan
  • Cabify
    Global Excellence Associate
    Cabify
    Feb 2018 - Jul 2018 (6 months)
    Conformed the first Excellence Global Team centralized in Colombia, in charge of providing customer service to all the Cabify customers (passengers and drivers) around the globe. Main contributions and achievements: - Implemented more than 20 automation scripts for Zendesk automatic answers, reducing Average Response Time below 120 minutes. - Expanded centralized global Excellence operation, absorbing local operations in 3 months.
  • Sitel
    Billing Advisor
    Sitel
    Aug 2017 - Feb 2018 (7 months)
    Provided billing support to American COX Communications customers with billing queries and issues, through real-time chat (up to 3 chats at the same time). Main contributions and achievements: - Reached 100% monthly cross-selling goal in COX services and ancillaries, equivalent to 2000 USD. - I was promoted to a Backup Supervisor role for my performance, transmitting my sales experience, and dealing with daily advisors' issues.
  • Mercado libre
    Customer Experience Representative
    Mercado libre
    Jul 2016 - Jun 2017 (1 year)
    Main contributions and achievements: - Guaranteed outstanding customer experience, reaching a monthly NPS (Net Promoter Score) above 70% and a recontact rate below 2%. - Implemented team calibrations to standardize the written tone of voice, reducing quality errors from 40% to 18%.
Education verified_user 8% verified
  • W
    Advanced Software Engineering
    Workfully
    Jun 2022 - Jul 2022 (2 months)
  • Platzi
    JavaScript School public Remote experience
    Platzi
    Mar 2021 - May 2021 (3 months)
  • H
    Full Stack Web Developer verified_user Verified experience public Remote experience
    Henry
    Feb 2021 - Jun 2021 (5 months)
    - Became Teaching Assistant for a group of 18 new students.
  • H
    Full Stack Web Developer, Software Engineering
    Henry
    Jan 2021 - Dec 2021 (1 year)
    Skills: React.js · Node.js · JavaScript
  • Platzi
    JavaScript School, Web apps development
    Platzi
    Nov 2020 - May 2021 (7 months)
    Skills: FastAPI · React.js · Node.js · JavaScript
  • Platzi
    Web Development School public Remote experience
    Platzi
    Aug 2020 - May 2021 (10 months)
  • Udacity
    Data Structures and Algorithms Nanodegree
    Udacity
    May 2020 - Jun 2020 (2 months)
  • Udacity
    Data Structures & Algorithms Nanodegree, Programming
    Udacity
    Jan 2020 - Dec 2020 (1 year)
  • L
    Bachelor's Degree in Software Engineering public Remote experience
    La Rioja International University
    Aug 2019 - Current (5 years 11 months)
Projects verified_user 0% verified
  • R
    Restaurant Manager (Full Stack Project - Vue + Golang)
    Aug 2021
    Full Stack Project: Database + Backend + API + Frontend. A transactions' manager for a restaurant, to sync data directly with the database, see the buyers, their transactions, the products bought per transaction, and more interesting information. Main results: - Frontend works as a Single Page App with 3 screens (Date picker for data sync, Buyers list, and Buyer Profile). - Search bar to search a buyer by ID. - “Infinite” pagination implemented to load buyers on demand. - Vuetify used to implement Material design components. - Backend implements a REST API, with a Routes layer and a Services layer. - Database controllers layer implemented (only the controllers are able to interact directly with the Dgraph database). Frontend: - JavaScrip
  • R
    Reflect (Full Stack Project with Python and Next.js)
    Jul 2021
    Frontend GitHub Repository: https://github.com/cristianblar/kiwiflask-front Backend GitHub Repository: https://github.com/cristianblar/kiwiflask-api A basic Python Flask API that receives an array, process it and returns the reflection pivot (the index that separates the array in two parts which sum is the same), with a web interface to interact directly from the browser. Tech stack: - JavaScript. - React. - Next.js. - CSS Modules. - Python. - Flask. - Gunicorn.