Seeking a Senior Software Engineer with expertise in React to develop a marketing SaaS platform focusing on front-end development and user experience.
Position Overview
We are seeking a skilled Senior Software Engineer with strong React expertise to join our development team. Together we will be building a marketing SaaS platform, specifically focusing on user interfaces, personalization features, and data-driven visualizations. This role requires someone who combines technical independence with a proactive approach to problem-solving, proposes innovative solutions, and collaborates effectively as a valued team member.
What you will do
Development & Implementation
- Design, develop, and maintain complex front-end applications using React and TypeScript
- Build and maintain microfrontend architecture using Module Federation
- Participate in system architecture discussions and technical design reviews
- Ensure applications are scalable, performant, and deliver exceptional user experiences
- Develop reusable component libraries and maintain design system consistency
Quality Assurance
- Write comprehensive unit tests, integration tests, and end-to-end tests using React Testing Library and Playwright
- Participate in code reviews and provide constructive feedback to team members
- Debug and troubleshoot application issues across development, shared qa, and production environments
- Monitor application performance and implement optimizations
- Ensure accessibility standards are met across all features
Collaboration & Communication
- Work closely with product managers, designers, and backend engineers
- Collaborate with other frontend developers to ensure consistency and code quality
- Participate in sprint plannings, groomings, daily standups, and retrospectives
- Mentor junior developers and contribute to team knowledge sharing
- Document technical specifications and maintain project documentation
Requirements
Technical Skills
- 5+ years of professional software development experience
- Strong proficiency in React, JavaScript (ES6+), and TypeScript
- Deep understanding of React hooks, context API, and state management solutions
- Experience with microfrontend architecture and Module Federation
- Proficiency with React Testing Library and modern testing practices
- Strong understanding of HTML5, CSS3, and responsive design principles
- Experience with RESTful and GraphQL API integration and asynchronous programming
- Familiarity with modern build tools and bundlers
Soft Skills
- Strong problem-solving and analytical thinking abilities
- Attention to detail and commitment to code quality
- Excellent communication and collaboration skills
- Ability to learn new technologies and adapt to changing requirements
Preferred Qualifications
Advanced Technical Skills
- Experience with Webpack configuration and optimization
- Knowledge of CI/CD pipelines and Jenkins
- Experience with state management libraries
- Knowledge of cloud platforms (AWS)
- Understanding of security best practices and authentication systems (OAuth, JWT)
Additional Experience
- Experience with design systems and component libraries (Storybook)
- Knowledge of performance optimization techniques and web vitals
- Experience with monitoring and logging tools (Loki, Datadog, Kibana)
- Familiarity with accessibility testing tools and practices
- Experience with end-to-end testing frameworks (Playwright, Cypress)
Why join us
- Take ownership of technically challenging, high-impact product areas
- Work with a talented, friendly team of engineers, designers, and product people
- Be part of shaping a SaaS product used by global customers
- Flexible working model: modern Gdańsk office or remote from home
- Competitive compensation package, with opportunities for growth and learning
- Modern development tools and equipment
Top Skills
AWS
CSS3
Cypress
Datadog
GraphQL
HTML5
JavaScript
Jenkins
Kibana
Loki
Playwright
React
Restful Api
Storybook
Typescript
Webpack
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