Senior Frontend Engineer

YOUR MISSIONWe are looking for a highly-skilled Senior Frontend Engineer to join one of our development teams. In this role, you will be responsible for developing and implementing user interface components using React.js with technologies such as TypeScript, GraphQL, Jest, Cypress and Vite, as we build the future of AI-powered digital advertising. You will also be responsible for testing, profiling and improving front‑end performance and documenting our front‑end codebase, and mentoring your team‑mates, planning tasks and estimating workloads.You'll be working within a cross-disciplinary team under the Engineering Manager to contribute to our multi-tenant SaaS product. This is a high‑impact role for someone who thrives on elevating engineering standards, and driving a forward‑thinking, AI‑first approach across the organization.To ensure success as a senior frontend engineer, you should have in-depth knowledge of React concepts, excellent front‑end coding skills, and a great understanding of progressive web applications. Ultimately, a top‑class Senior Frontend Engineer should be able to design, plan and build modern user interface components to enhance application performance and coach other team‑mates to achieve the same.YOUR PROFILE6+ years of professional experience in similar positionsProduct‑minded engineer who understands how frontend decisions impact user experience, business metrics, and product strategyHands‑on coder who thrives in a strong IC role, writing production code dailyExpert‑level proficiency in TypeScript, React, CSS, and GitExceptional code reviewer with the ability to lead technical discussions in a professional, polite, and constructive mannerDeep expertise in micro‑frontends architecture and ability to design scalable solutions enabling fast, independent deploymentsFamiliar with monorepo strategiesExperience with modern build tools (Vite) and GraphQLStrong knowledge of Jest or Vitest, Cypress (nice to have)Proven experience with state management libraries Redux or ZustandExpert understanding of performance optimizations, ideally with Core Web Vitals metricsSolid grasp of CI/CD pipelines and Git release strategiesFamiliarity with AI coding assistants (Cursor/Claude) to boost productivityQuality‑focused mindset with deep passion for user experienceStrong troubleshooting and debugging skillsExcellent communication skills with an empathic, respectful approach to collaborationYOUR RESPONSIBILITIESWrite production‑grade code daily as a hands‑on Individual ContributorArchitect and implement micro‑frontend solutions supporting independent team deploymentsLead code review discussions , providing constructive feedback that shapes team best practices and engineering mindsetGuide technical decision‑making through professional, diplomatic communicationMake strategic frontend architecture decisions that align with the product roadmap and business objectivesDevelop highly responsive user interface components using React and TypeScriptDesign and maintain monorepo/micro‑frontend infrastructure for scalable frontend architectureWrite and maintain automated unit, e2e, and visual regression tests with a zero‑bug mindsetMonitor, profile, and optimize frontend performance against Core Web VitalsFacilitate technical design discussions and architecture reviewsDocument application architecture, changes, and best practicesCollaborate within SCRUM workflow , writing and estimating tasks independentlyMentor team members on frontend architecture, code quality, and professional development practicesLeverage AI coding tools to accelerate development and maintain high code qualityWHY US?Factor Eleven's tech department is an inhouse tech start‑up/scale‑up and responsible for our SaaS product suite offering localized digital advertising to enterprises of all sizes and shapes. We're powering the engine that Factor Eleven is successfully built upon and elevate the possibilities of our product on a daily basis. We're fulfilling our ambitions as a top ad‑tech provider by continuously leveling up the quality and expanding capabilities of the entire platform, as well as our engineering and product organization.Join our amazing team in our mission to move digital localized advertisement forward and enjoy the freedom, camaraderie and perks of our fully remote operations.OUR PERKS & BENEFITSTransparent, above‑market salaries100%-remoteClear expectations and regular feedbackFlexible work‑hoursBe part of a fast‑growing, highly‑skilled TeamIn person department and company eventsHome office, co‑working space allowancePersonal and professional development fund#J-18808-Ljbffr