Pracodawca zakończył zbieranie zgłoszeń na tę ofertę

Senior Frontend Developer

Ulam Labs

contract of employment
14 00020 500 gross / mth.
B2B contract
17 00025 000 net (+ VAT) / mth.
  • Company location
    Grabiszyńska 163, Fabryczna, Wrocław
    Wrocław, Lower Silesia
  • Work location

    Poland (remote work)

  • offer expired 3 months ago
  • contract of employment, B2B contract
  • full-time
  • specialist (Mid / Regular), senior specialist (Senior)
  • full office work, home office work, hybrid work
  • remote recruitment

Ulam Labs

Grabiszyńska 163



Technologies we use


  • AWS

  • Terraform

  • Kubernetes

  • React

  • PostgreSQL

  • RabbitMQ


  • Vue.js

Operating system

About the project

We are building a platform to manage the ad supply chain for most of the available channels (Netflix, Spotify, ads on London Underground, BBC radio, etc). The clients are big companies like Coca-Cola, Nike, or P&G and in fact their marketing teams.

The task of the platform is to provide users with the opportunity to learn about the cost of placing ads and then buy (in an auction system) these places, allocate and reallocate advertising budgets, and upload ad files (banners, audio, video, etc). Total management and monitoring of all advertising campaigns. The platform will include integrating multiple platforms and unifying their ad buyback/bidding systems.

Your responsibilities

  • Develop new user-facing features.

  • Build reusable code and libraries for future use.

  • Ensure the technical feasibility of UI/UX designs.

  • Optimize application for maximum speed and scalability.

  • Collaborate with other team members and clients.

Our requirements

  • 4+ years of proven commercial experience in developing user interfaces using React.

  • Experience with state management patterns and solutions (e.g. Redux / Vuex / Mobx).

  • Strongly experienced with testing methodologies for the front-end world (JS Unit tests, E2E tests).

  • A high degree of proficiency and understanding in HTML/CSS.

  • Experience in Git.

  • High attention to detail.

  • Experience working in a Scrum.

  • Fluent in English with great communication skills.

  • Experience in working with REST/GraphQL APIs.

  • Basic understanding of tools such as Sketch, Figma, InVision, or Zeplin.


  • Flutter / React Native / Native Script / Ionic experience.

  • Python experience.

  • Cypress experience.

  • Experience in leading a team (both: tech lead skills and mentorship attitude are highly appreciated).

Division of working time


This is how we organize our work

Team size

  • 10

This is how we work

  • in house
  • at the client's site
  • you focus on a single project at a time
  • you can change the project
  • you have influence on the product
  • you develop the code "from scratch"
  • you focus on product development
  • agile
  • scrum

Team members

  • backend developer
  • frontend developer
  • technical leader
  • devOps
  • automated test programmer
  • manual tester
  • project manager
  • graphic designer
  • UI designer
  • UX designer
  • UX researcher

This is how we work on a project

  • code review

  • BDD

  • DDD

  • event modeling

  • pair programming

  • Continuous Integration

  • DevOps

  • documentation

  • issue tracking tools

  • technical debt management

  • functional tests

  • regression tests

  • test automation

  • unit tests

  • manual tests

Development opportunities we offer

  • assistance in preparation to public speeches

  • conferences in Poland

  • development budget

  • external training

  • intracompany training

  • space for experimenting

  • substantive support from technological leaders

  • support of IT events

  • technical knowledge exchange within the company

  • time for development of your ideas

What we offer

  • Employment or B2B contract (with benefits and paid vacation days) - it’s up to you.

  • Possibility to learn a lot from colleagues, we are working in a 10 people team.

  • Flat management structure — we are a growing company.

  • We really pay attention to talents and constantly develop our skills (Ulam Talks, external or internal training).

  • Integration events and budget for socials (sports events, pub crawls, seasonal parties and trips) - we really enjoy spending time together!

  • Company-provided equipment: MacBook Pro.

  • Voluntary activities.


  • private medical care

  • sharing the costs of foreign language classes

  • sharing the costs of professional training & courses

  • remote work opportunities

  • flexible working time

  • fruits

  • integration events

  • computer available for private use

  • corporate library

  • no dress code

  • coffee / tea

  • drinks

  • parking space for employees

  • christmas gifts

  • sharing the commuting costs

  • employee referral program

  • charity initiatives

  • extra leave

  • MultiSport card

Recruitment stages

Phone interview




HR and technical interview


Feedback with decision


Welcome onboard!

Ulam Labs

Ulam Labs is a tech studio specializing in end-to-end software development with a strong focus on FinTech and Crypto spaces. Our expert team assists clients globally, working on projects that contribute to shaping their industries.

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