Senior/Lead Frontend Developer

Salary: up to 1040 pln/md on B2B

Work model: hybrid from Kraków (2 days per week from the office)

Why choose this offer?

• Shape the core architecture of a next-gen embeddable component platform
• Influence standards, patterns, and key engineering decisions
• Blend strategy with hands-on work, from prototyping to delivering high-performance UI
• Build reusable, framework-agnostic components

Project

Expected competences and knowledge

• 6+ years of experience in modern frontend engineering (TypeScript, JavaScript, React/Angular/Svelte)
• Passion for component libraries, SDKs, or design systems
• Strong understanding of Web Components, modular architecture, and CI/CD pipelines
• A builder’s mindset with a strong focus on experimentation, rapid learning, and continuous improvement

Technologies you'll work with

• TypeScript
• Web Components
• Component libraries / SDKs / Design Systems
• Modular architecture
• CI/CD pipelines
• JavaScript
• React
• Angular
• Svelte

Client – why choose this particular client from the Jit portfolio?

JIT Team has recently started a collaboration with this UK-based software and payments company, employing over 900 people and operating its Polish office in Kraków. The organization specializes in integrated software, payment solutions, and digital services. At the core of they're culture are the FAIR™ values — Future-proofing, Approachability, Integrity, and Responsibility — which guide everyday decisions and long-term strategy. They combine the agility of a tech-driven environment with the stability of an established leader, fostering a collaborative and innovation-focused workplace.

About Jit Team

The Human factor of IT - it's not just a slogan, it's a philosophy. The foundation of Jit Team is people, which is why we prioritise you. We employ over 700 experienced experts. We create highly specialised teams for clients from all over the world. We offer team members developmental projects, a wide range of benefits and a proprietary professional development programme.

Behind our maxim are also charitable and educational activities. We support pupils and students by donating learning equipment. We offer internships to help launch careers in IT. We support water rescuers and hospitals by providing the necessary equipment. We are a Polish company and we share what we have achieved over 15 years of activity. By supporting indigenous initiatives, we ensure the circulation of good energy.