Remote Senior JavaScript Developer - Cracow, Poland






- Name: private info
- Focus: Frontend, Full Stack
- Career: Junior, Mid Level, Senior, Manager
- Location: Cracow, Poland
- Timezone: UTC+02:00
- Speaks: Polish, English
Senior JavaScript Developer
Kinsta
• Collaborating within a 10-member Analytics Team.
• Creating domain-specific charts leveraging the Visx library.
• Contributing to a competitive product focused on intuitive data monitoring.
• Implementing code using React, GCP, Node.js, and GraphQL endpoints.
• Assisting in the establishment and optimization of team processes.
04/2021 - 10/2022
Technical Leader
Patio
• Lead a small (4 people) web team.
• Took part in creating “Slack for College Students” on Web (patio.app) - features like
Friending, Chat functionalities, real-time communication, Chat Space, Invites, and
many others.
• Shaped Agile processes and collaborated cross-platform with Mobile, Backend,
QA, Design, and Marketing Teams.
• Recruited people in the company, did some management work, and kept being
proactive in a dynamic startup - reacted to changes.
• Iterated quickly in weekly cycles, almost every week releases based on Hasura
generated API and some custom actions based on an API Server.
• Kept technical debt. small & solid quality with bug-free code in the product - great
eye for UX/UI details, around 2000 of automated tests in Cypress, GH Actions
(Linters, Library version checks, Unit Tests, etc.).
01/2021 – current
Frontend Mentor
BigsonDev/Codementor/MentorCruise
TECHNICAL SKILLS
• HTML5, CSS3
• JavaScript (ESNext), TypeScript
• React and friends
• CSS-in-JS (styled-components/
emotion)
• State management (Redux/context)
• Components, Atomic Design
• Build tools (Webpack/craco)
• Monorepos/Micro-frontends
• Testing (jest, Cypress)
• Performance (LightHouse)
• Reporting Tools (Sentry)
• CI/CD/Quality
• Hasura, Supabase
• APIs (GraphQL, REST, react-query)
• Node.js
• Git, CLI, VSCode
• Agile (Jira, Scrum, Kanban)
• Technical Writer (Documentation)
bigsondev.com
/bigsondev
/adrian-bigaj-282277130/
SOFT SKILLS
• Proactive
• Leadership
• Communication
• Poblem solving
• Time management
• Knowledge sharing
• Easily adapting
• English - Fluent
• Polish - Native
LANGUAGES
• Working on an automated, interactive educational application with a project-based
learning mindset adjusted to entry level Developers.
Materialising ideas related to Mentoring, preparing blog posts, knowledge pills, and
projects to practice.
• Learning new technologies (Gatsby.js, Next.js).
01/2020 – 12/2020
Senior Technical Lead
j-labs (Sinch)
• Extending monorepo to 10 products, solving cross-product issues, listening to
feedback and improving other developers workflow.
• Planning and creating Design System with designers in order to force consistency
across products, delivering new reusable components.
• Improving code quality, helping other products in their challenges.
• Creating architecture of internal applications for support, similar to external
monorepo concept, implementing features.
11/2017 – 05/2019
Frontend Developer
j-labs (Sinch)
• Being a first Frontend Developer on polish side.
• Rewriting existing application according to current standards and newest library
versions.
• Creating standards and best practices for React and JS.
• Delivering functionalities, contact with the client, impacting application
architecture.
• Being a first Frontend Developer on polish side.
08/2017 – 10/2017
Software Engineer III
Grape Up (Balfour)
• Working on a fully based SVG project, „Photoshop online” for creating year books
from the entire school year.
• Doing project audits, Code Review, improving Code Quality, creating process of
building apps (CI/CD, webpack).
• Pair Programming with international team.
• Collecting requirements, design review, planning features, managing the team,
creating JIRA tickets.
• Meeting with clients, presenting demos of our project(s).
06/2019 – 01/2020
Senior Frontend Developer
j-labs (Sinch)
• Creating Monorepo based on Lerna and Yarn workspaces in order to create
additional products by different teams in Customer Facing portal.
• Implementing reusable components for improving workflow of other developers
and deploying it to company NPM.
• Being a leader of Frontend architecture group.
• Leading multiple international teams
• Settling requirements, create JIRA tickets, implementing features.
• Creating internal features for support.
04/2017 – 07/2017
Software Engineer II
Grape Up (Balfour)
• Creating SPA’s using React + Redux, design review, settling technical requirements,
implementation, planning API with Backend Team.
• Working in an international team.
• Leading 5 people Frontend team.
• Managing Jenkins (building FE apps).
11/2016 – 03/2017
Software Engineer
Grape Up (Avaya)
• Working on Avaya Communicator (JS and Angular 1.x).
• Working in international team.
• Writing unit tests.
• Creating articles and technical documentation.
• Code Review (Atlassian’s Kit), keeping code quality.
• Working in Agile (SCRUM).
08/2016 - 10/2016
Junior Software Developer
Ericpol (Ericsson)
• Solving issues with 2G network simulation application.
• Maintenance and expanding testing jobs in Jenkins.
• Implementing of 2G mechanisms in Java.
• Writing technical documentation.
• Working with other teams.
04/2016 - 07/2016
Intern
Ericpol (Ericsson)
• Application maintenance (2G network simulation).
• Creating test cases in Java (for 2G network simulation).
• Implementing searching scripts in Python.
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