Senior Full Stack Engineer with focus on Front-end

5 dni temu

Warszawa, Mazovia, Polska Sigma Software Pełny etat 60 000 zł - 120 000 zł rocznie
Company Description

We're looking for an experienced Fullstack Engineer who's especially strong on the frontend side. This role focuses on frontend excellence while actively contributing to the essential backend systems that power the tool. It offers the perfect balance between frontend craftsmanship and backend engineering.

CUSTOMER

Our Customer is a market-leading web and mobile accessibility software company focused on providing accessibility automation to enterprises. Their AI-enabled products save time and reduce risk via proprietary discovery and analysis algorithms that integrate directly into software development pipelines.

Job Description
  • Develop, test, and maintain frontend components with a focus on accessibility.
  • Contribute to the improvement of backend services that power the product you're building.
  • Enhance backend services to better facilitate product development.
  • Build high-quality, scalable, and modular UI systems for web-based SaaS products.
  • Optimize frontend performance and system efficiency.
  • Participate in design and code reviews to ensure best practices.
  • Collaborate with other engineering teams to integrate across the product stack.
  • Apply testing methodologies using modern automation frameworks for frontend quality assurance.
Qualifications

Frontend (80% focus): 

  • 5+ years of experience with JS/TS using React
  • Experience with Redux 
  • Experience with E2E Frontend development of complex enterprise-grade / SaaS applications 
  • Strong HTML/CSS capabilities 
  • Experience with Styling & UI Libraries: Styled Components, StoryBook
  • Experience with testing frameworks and methodologies (UT/E2E) 
  • Practical experience using Testing Tools - Playwright or Cypress
  • Experience working with State/Data Management - React Query
  • Ability to write and reason about clean and modular code 
  • Values good UX and pixel-perfect 
  • Strong communication skills
  • At least Upper-Intermediate level of English 

Backend (20% focus):

  • Proven commercial experience in back-end development (any programming language is acceptable).
  • Familiarity with back-end system-design principles, including API definition and integration.
  • Ability to design and implement relational database structures.

WOULD BE A PLUS

  • Experience with accessibility  
  • Experience building a component library and contributing to open source  
  • Experience with Figma

  • Senior Full Stack Engineer

    5 dni temu

    Warszawa, Mazovia, Polska Sigma Software Pełny etat 40 000 zł - 80 000 zł rocznie

    Company Description We are looking for a Senior Full Stack Engineer to join one of our teams and help us build great products for our clients. Join a globally recognized company, where innovation meets impact. With a team of seasoned professionals and a culture built on excellence, we deliver top-tier solutions that shape industries and drive meaningful...

  • Junior Front-end Engineer

    3 dni temu

    Warszawa, Mazovia, Polska Kyriba Pełny etat 40 000 zł - 80 000 zł rocznie

    It's fun to work in a company where people truly BELIEVE in what they're doing We're committed to bringing passion and customer focus to the business.About UsKyriba is a global leader in liquidity performance that empowers CFOs, Treasurers and IT leaders to connect, protect, forecast and optimize their liquidity. As a secure and scalable SaaS solution,...

  • Full-stack engineer

    5 dni temu

    Warszawa, Mazovia, Polska WLG Pełny etat 60 000 zł - 90 000 zł rocznie

    Would you like to join the leading international intergovernmental organization?We are looking for a passionate Full-stack engineer who will provide remote support to our client's digital modernization initiatives, focusing on the design, development, testing, deployment, and sustainment of secure, containerized applications. The work will align with...

  • Senior Full Stack Engineer

    5 dni temu

    Warszawa, Mazovia, Polska Complexio Pełny etat 60 000 zł - 120 000 zł rocznie

    At Complexio, we're building the intelligence layer for enterprise AI—automatically creating aconnected understanding of an organisation's people, processes and systems, and turningthat into real-time automation and insight. Our platform ingests structured and unstructureddata, constructs a living Event Knowledge Graph, and orchestrates multiple AI models...

  • Front-End Engineer

    5 dni temu

    Warszawa, Mazovia, Polska Greenberg Traurig Pełny etat 60 000 zł - 90 000 zł rocznie

    Greenberg Traurig (GT), a global law firm with locations across the world in 15 countries, has an exciting employment opportunity for you. We offer competitive compensation and an excellent benefits package, along with the opportunity to work within an innovative and collaborative environment.Join our Innovation departmentas a Front-End Engineer located in...

  • Middle/Senior Front-End Developer

    5 dni temu

    Warszawa, Mazovia, Polska Sigma Software Pełny etat 60 000 zł - 80 000 zł rocznie

    Company Description We are looking for a Middle/Senior Front-end Developer to join our team and help us develop the best solutions for our clients.Working as a Front-end Developer on this project requires a mindset where we plan, build, and deliver together as a team. As a group, we take shared responsibility for delivery, including speed, efficiency, and...

  • Java Full-Stack Developer

    5 dni temu

    Warszawa, Mazovia, Polska SIX Pełny etat 90 000 zł - 120 000 zł rocznie

    SIX drives the transformation of financial markets.What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us. (Senior) Java Full-Stack Developer Warsaw...

  • Principal Full-Stack Engineer

    3 dni temu

    Warszawa, Mazovia, Polska Cerebellum Network Pełny etat 80 000 zł - 120 000 zł rocznie

    Why Join Us? We are a leading Web3 company, backed by Binance Labs, Republic Labs, and Polygon. At Cere, you'll be at the forefront of the Web3 AI revolution, working on groundbreaking AI technology that is transforming the industry. Join us to accelerate your career and make a significant impact. About the Role As a Staff/Principal Fullstack Engineer, you...

  • Java Full-Stack Developer

    5 dni temu

    Warszawa, Mazovia, Polska SIX Group AG Pełny etat 60 000 zł - 120 000 zł rocznie

    SIX drives the transformation of financial markets.What sets us apart drives us ahead: between local roots and global relevance, we are a unique blend of tradition and future, of foundation and growth. We value bright minds and inspire them to grow with their ideas. Come and shape the future of finance with us.(Senior) Java Full-Stack DeveloperWarsaw |...

  • Senior Full Stack Developer

    5 dni temu

    Warszawa, Mazovia, Polska Luxoft Pełny etat 50 000 zł - 120 000 zł rocznie

    Project descriptionThe Product team builds features end-to-end. From designing our data models to implementing the subtle interaction behaviors that differentiate good software from great software. We work closely with UI designers and are supported by our infrastructure team. We aim to delight users with both large new features and smaller, daily product...