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Senior Frontend Developer

WebInterpret SASAbout the company

  • Inflancka 4a, Warszawa
    Warszawa, Masovian
  • Offer expired 6 days ago
  • contract of employment
  • full-time
  • senior specialist (Senior)

WebInterpret SAS

Inflancka 4a


Technologies we use


  • JavaScript

  • React

  • CSS

  • Git

Your responsibilities

  • As a Frontend Developer you will be a part of a multi-disciplinary agile team that is responsible for developing services to process and localize large amounts of e-commerce listings and run thousands of localized e-commerce sites.

  • You will work on the development of our client faced application and internal applications to support a flow of millions of products and orders between domestic and international stores

  • You will help with architecture-level design decisions during various phases of a project.

  • You will influence your peers, your stakeholders to design a top notch solution for every problem space you put your hands on.

  • You will improve performance and scalability of our services and applications

  • You will breathe and live by Test Driven Development to outsmart your QA colleagues

  • You will continually seek to develop your skills, learning tools and technologies that help you master your profession

  • You will always stand up to the challenges your software may present to the not so amused customer, will be the light in the tunnel, not just at the end of it.

Our requirements

  • 4+ years of recent production quality product development experience

  • Solid experience in writing complex JavaScript applications (especially SPA)

  • Excellent knowledge of plain, modern JavaScript (ES2015+) and object oriented programming in general

  • Experience in writing React + Redux applications

  • Experience in optimizing websites on frontend part

  • Solid experience writing maintainable CSS

  • Solid experience avoiding Callback Hell and Promise Hell

  • Git


  • Good knowledge of JavaScript build tools (eg. Webpack) and the yarn ecosystem

  • Knowledge of redux-saga, redux-forms, style-loader and css-loader, reselect...

  • Experience with ESLint for linting

  • Experience with tools for testing JavaScript and React code (eg. Jest, Enzyme)

  • Knowledge of other programming languages (eg. Python, PHP)

  • Passion to write well-structured, easily maintainable, well-documented code

  • Strong communication skills, ability to self-organise and work well within teams

What we offer

  • The chance to work on a large-scale exciting products

  • The opportunity to work as part of a dynamic, experienced, international team

  • Attractive remuneration

  • Team structure that allows to work remotely

  • Referral program

  • Free languages courses

  • Gym membership

  • Premium medical insurance (Medicover)

  • Relocation support

  • Benefits

  • sharing the costs of sports activities

  • private medical care

  • sharing the costs of foreign language classes

  • sharing the costs of professional training & courses

  • fruits

  • integration events

  • coffee / tea

  • redeployment package

  • employee referral program

WebInterpret SAS

Webinterpret is a fast-growing SaaS business with offices in 5 countries. Our SaaS-based software provides Ecommerce Localization Engine that enables online retailers to rapidly expand their business into international markets.

Our services are appreciated by over 20,000 retailers across Europe, US and China and are used to run cross-border Ecommerce stores with some of the biggest names in e-commerce such as Amazon, Ebay, PayPal and others.

Millions of products and orders are processed by our system daily. We are stable, fast growing company of 200+ people that has very ambitious and exciting plans.

We are an international team of talented, empowered people who strive in a fast-paced agile environment. We don’t like bureaucracy and like to get things done. We work as a team and help each other. We are constantly learning, finding better ways to do things, and sharing knowledge.

If this sounds like your type of environment, get in touch.

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Our technology stack:

  • Modern JavaScript (ES2015+) running React SPA frontend backed by Redux store

  • Docker running through custom scripting for development and end-to-end testing purposes

  • Kubernetes

  • Solid patterns for organizing large codebase across frontend, backend and test suites

  • JSON API used as a contract between backend microservices and the client code

  • Amazon Web Services (EC2, RDS, ELB, EBS, API Gateway, Lambda)

  • RabbitMQ as message queue

  • ElasticSearch to handle our huge set of data

Our workflow highlights:

  • Agile development flow based on GitLab, JIRA, Slack and the CI

  • Mature product pipeline with predefined specs, designs and architectures for all features

  • Scrum process with multiple teams, overseen by Scrum master

  • Battle-proven approach to testing, static code analysis and code reviews

  • Code linters to guard a top-class Elixir (Credo, ExFormat) and JavaScript code (ESLint)

  • Complete toolset including New Relic, Sentry and Graphana to inspect & fix performance issues

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