YOUR MISSION
We 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 PROFILE

6+ years of professional experience in similar positions
Product‑minded engineer who understands how frontend decisions impact user experience, business metrics, and product strategy
Hands‑on coder who thrives in a strong IC role, writing production code daily
Expert‑level proficiency in TypeScript, React, CSS, and Git
Exceptional code reviewer with the ability to lead technical discussions in a professional, polite, and constructive manner
Deep expertise in micro‑frontends architecture and ability to design scalable solutions enabling fast, independent deployments
Familiar with monorepo strategies
Experience with modern build tools (Vite) and GraphQL
Strong knowledge of Jest or Vitest, Cypress (nice to have)
Proven experience with state management libraries Redux or Zustand
Expert understanding of performance optimizations, ideally with Core Web Vitals metrics
Solid grasp of CI/CD pipelines and Git release strategies
Familiarity with AI coding assistants (Cursor/Claude) to boost productivity
Quality‑focused mindset with deep passion for user experience
Strong troubleshooting and debugging skills
Excellent communication skills with an empathic, respectful approach to collaboration

YOUR RESPONSIBILITIES

Write production‑grade code daily as a hands‑on Individual Contributor
Architect and implement micro‑frontend solutions supporting independent team deployments
Lead code review discussions, providing constructive feedback that shapes team best practices and engineering mindset
Guide technical decision‑making through professional, diplomatic communication
Make strategic frontend architecture decisions that align with the product roadmap and business objectives
Develop highly responsive user interface components using React and TypeScript
Design and maintain monorepo/micro‑frontend infrastructure for scalable frontend architecture
Write and maintain automated unit, e2e, and visual regression tests with a zero‑bug mindset
Monitor, profile, and optimize frontend performance against Core Web Vitals
Facilitate technical design discussions and architecture reviews
Document application architecture, changes, and best practices
Collaborate within SCRUM workflow, writing and estimating tasks independently
Mentor team members on frontend architecture, code quality, and professional development practices
Leverage AI coding tools to accelerate development and maintain high code quality

WHY 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 & BENEFITS

Transparent, above‑market salaries
100%-remote
Clear expectations and regular feedback
Flexible work‑hours
Be part of a fast‑growing, highly‑skilled Team
In person department and company events
Home office, co‑working space allowance
Personal and professional development fund

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