Senior Fullstack Engineer (m/f/d) at Kayzen | AdTechTalent
Engineering2 months agoRemote
Kayzen
Senior Fullstack Engineer (m/f/d)
fullstackjavascripttypescriptreactangularvuereduxmobxzustandjestcypressplaywrightai-assisted developmentgraphqlrest apiruby on railsprogrammaticadtechreal-time data visualizationllmprompt-driven ui
Key details
Salary
Not specified
Employment type
Full-time
Seniority
Senior
Years experience
5-10
Location
Bengaluru, India; Remote, India
Full job description
Kayzen is seeking a senior Fullstack Engineer with 5+ years of experience in modern JavaScript/TypeScript and expertise in React, Angular, or Vue. The role involves designing and maintaining high-quality fullstack features, collaborating with cross-functional teams, contributing to architecture decisions, and integrating AI-assisted development tools. Candidates should have strong skills in HTML5, CSS3, state management, testing methodologies, and performance optimization. Experience with APIs, RESTful services, GraphQL, and Ruby on Rails is a plus. The position is remote from India with a flexible work-from-home arrangement and offers career growth, a multinational team environment, and budgets for home-office setup and learning.
What you'll do
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
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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 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
Requirements
Minimum 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
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
Great communication skills, able to explain technical decisions clearly to teammates and stakeholders
Bias for shipping and iteration, delivering incrementally and learning 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
Tech stack
JavaScriptTypeScriptReactAngularVueHTML5CSS3ReduxMobXZustandJestCypressPlaywrightRuby on RailsGraphQLRESTful APIsAI-assisted development toolsLLM APIs
Benefits
Exceptional career growth and learning opportunityOpportunity to be part of an experienced team of industry experts and entrepreneurs in AdtechFun, driven, and multinational team across multiple countriesFlexible work-from-home arrangement500-dollar home-office setup budget1000-dollar annual learning and development budget
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