Kayzen
Fullstack Engineer (m/f/d)
Rol remoto de Fullstack Development con fit claro de ubicación del candidato.
Publicado4 jul 2026
Países elegibles1 país aceptado
Señal de senioritySenior
Modelo de trabajoRemoto
Ubicaciones aceptadas para candidatos
India
Resumen del rol
Fullstack Engineer (m/f/d)
Requisitos y responsabilidades
Contenido del rol extraído en secciones para revisar más rápido.
The Team
- “The Console” which is the face of Kayzen we are very proud of.
- Complex features which surface a lot of backend infrastructure via console
- Almost 100% uptime with very well planned & executed project management
Responsibilities
- Core responsibilities
- Design, build, and maintain high-quality features across the Fullstack stack, from UI to API integration
- Write clean, well-tested, production-ready code and actively participate in code reviews
- Collaborate closely with Product, Design, QA, and Backend teams to deliver cohesive, user-centric features
- Contribute to technical decisions around architecture, tooling, and best practices within the team
- Take ownership of features end to end, from planning through deployment and monitoring
- Hands-on AI Implementation
- Integrate AI-powered coding agents and automated LLM-based testing into your daily development cycle
- Contribute to building 'AI-First' UI patterns, working alongside the LLM Platform team on generative, prompt-driven interfaces
- Stay current with emerging AI-assisted development tools and bring relevant ones back to the team
- Project & Execution Management
- Break down assigned product requirements into clear, actionable engineering tasks
- Deliver work reliably within sprint commitments, flagging blockers or scope changes early
- Balance new feature delivery with addressing technical debt in the codebase you work on
Details
- Design, build, and maintain high-quality features across the Fullstack stack, from UI to API integration
- Write clean, well-tested, production-ready code and actively participate in code reviews
- Collaborate closely with Product, Design, QA, and Backend teams to deliver cohesive, user-centric features
- Contribute to technical decisions around architecture, tooling, and best practices within the team
- Take ownership of features end to end, from planning through deployment and monitoring
- Integrate AI-powered coding agents and automated LLM-based testing into your daily development cycle
- Contribute to building 'AI-First' UI patterns, working alongside the LLM Platform team on generative, prompt-driven interfaces
- Stay current with emerging AI-assisted development tools and bring relevant ones back to the team
- Break down assigned product requirements into clear, actionable engineering tasks
- Deliver work reliably within sprint commitments, flagging blockers or scope changes early
- Balance new feature delivery with addressing technical debt in the codebase you work on
Fullstack Technical Excellence (Core Focus)
- 5+ years of professional Fullstack development experience with modern JavaScript/TypeScript
- Solid expertise in at least one major framework (React, Angular, or Vue) and its ecosystem
- Strong understanding of HTML5, CSS3, responsive design, and cross-browser compatibility
- Experience building data-heavy UIs, ideally including real-time data visualization
- Good grasp of Fullstack performance optimization, including bundle size, rendering, lazy loading, and caching strategies
- Experience with state management patterns (Redux, MobX, Zustand, or similar)
- Working knowledge of Fullstack testing methodologies, unit, integration, and end-to-end (Jest, Cypress, Playwright, or similar)
- Comfortable working with design systems and shared component libraries
- Experience using AI-assisted development tools (e.g., Claude Code) to boost engineering productivity
Engineering Maturity
- Experience contributing to Fullstack architecture decisions on production applications
- Solid understanding of APIs, RESTful services, GraphQL, and system design fundamentals
- Ability to give and receive constructive feedback through code reviews
- Good communication skills, able to explain technical decisions clearly to teammates and stakeholders
Startup Mindset
- Bias for shipping and iteration, you deliver incrementally and learn from real users
- Comfortable with ambiguity and rapid change in a fast-paced environment
- Thinking in terms of leverage and reuse, not one-off solutions
- Pragmatic about trade-offs between perfectionism and speed of delivery
Less About
- Developers who prefer working in isolation on narrowly scoped tickets without engaging with the wider product context. We need someone who wants to understand the "why" behind the work and contribute ideas, not just execute tasks.
Nice to haves
- Familiarity with ad-tech, real-time bidding platforms, or high-traffic data products
- Contributions to open-source Fullstack projects or community involvement
- Experience building Fullstack interfaces for AI/ML-powered products (e.g., chatbots, recommendation engines, AI-generated content displays)
- Familiarity with LLM APIs and prompt-driven UI patterns
What do we offer?
- Exceptional career growth and learning opportunity
- A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market
- A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain and many more countries
- A flexible work-from-home arrangement
- A 500-dollar home-office setup budget
- A 1000-dollar annual learning and development budget
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