Before jumping into all the information about the role and what you can bring to the table, let us introduce ourselves real quick.About usInsider One is the #1 platform that brings everything marketing and customer engagement teams need in one place so they can reach their peak potential and become unstoppable. Our story began with six desks and a vision to create a single platform to make industry-first technologies and emerging channels accessible to marketers worldwide. Today, Insider One is powered by 1,500+ team members representing 50+ nationalities across 30+ offices. With AI at its core and an integrated Customer Data Platform (CDP), Insider One unites data, personalization, and journey orchestration across the most extensive set of natively supported channels, including WhatsApp, SMS, Email, Web, App, and Site Search. We recently raised one of the largest funding rounds in the industry, a $500M Series E led by General Atlantic. We are backed by top-notch investors, including Sequoia Capital, QIA, Riverwood, and Endeavor Catalyst, and trusted by 2000+ customers from high-growth startups to the most prestigious Fortune 500 companies such as Samsung, Nike, L’Oreal, Singapore Airlines, Nestlé, Nissan, Lenovo, Puma, IKEA, Allianz, Domino's, and the list goes on.Insider One was congratulated for becoming one of the only woman-founded, women-led B2B SaaS unicorns in the world. Loved by customers, recognized by analysts, we are the only vendor recognized as the #1 leader in all the capabilities marketing and customer engagement teams need. Don’t just take our word for it — see for yourself. We consistently outperform and continue our leadership, and the results speak for themselves.From day one, Insider One’s mission has not only been to build a world-class product company, but also to create one of the most socially progressive technology communities in the world. Through our social responsibility initiatives like 100 Social Responsibility Projects, AI Training for Teachers, Code Academy, SheCodes, SheLeads, and SheMarkables, our community has committed to scaling its impact on our communities across 30+ countries, driving initiatives in health, education, farming, animal rights, and increasing women’s representation in STEM.Behind all these achievements is an exceptionally talented, visionary team of overachievers that moves fast and agile, creating cutting-edge products, and focuses on making an impact. If you want to be a part of this journey, just keep reading.
And now? Now we are looking for a Front-end Developer who will help our Web Development Team create and implement a wide variety of web-based products using Go,
Node.js, or PHP, and who wants to take their career one step further. If you think you are one of those people, here you will have the chance to work with the world's leading brands using Artificial Intelligence & Machine Learning technologies. Right now, while you are reading this, we are sending an average of 2.2 billion requests and almost 2 billion instant notifications to more than 450 servers a day. On the Artificial Intelligence and Predictive side, we have more than 100 TB of historical data. We do not wait for jobs or opportunities to come to our feet — we create them. We have now reached 25% of global users. If all of this interests you, read on for more!
Our Engineers and Software Developers always think with an innovative perspective, taking advantage of the inexhaustible power of the digital world. They create impressive and intelligent products like true artists. Our Product and Development teams are located in our Istanbul office, so we produce and develop the technology we export to the world in our own country. At Insider One, we believe in cooperation and in adapting the innovations brought by technology by acting fast. We work closely with other departments with agile teams, and we are not afraid of getting our hands dirty. As we said, we do not wait for jobs or opportunities to come to our feet — we create them ourselves. You can check our Tech Stacks here!:
https://www.stackshare.io/companies/useinsider
What You Will Do
- Owns the technical direction of frontend architecture across Vue.js applications running on 600M+ devices monthly in 25+ regions
- Designs and evolves our Micro Frontend Architecture
- Develops and maintains state-of-the-art web applications with a user-centric approach using Vue.js (Vue 3, Composition API, Pinia/Vuex)
- Writes reusable, well-tested code and creates/maintains scalable components
- Leads technical decision-making — writes RFCs, drives architectural reviews, and sets frontend standards across teams
- Improves the performance, scalability, and availability of our systems
- Troubleshoots interface software and debugs application code
- Leads, manages, and grows a team of frontend engineers — owning 1:1s, performance reviews, career development, and goal setting
- Mentors engineers across seniority levels and coaches them on both technical and career growth
- Fosters a culture of ownership, psychological safety, and continuous learning within the team
- Identifies skill gaps, creates development plans, and advocates for promotions and recognition
- Participates in hiring — interviews candidates, contributes to technical assessments, and helps grow the team
- Plans and prioritizes the team's roadmap in alignment with product and business goals; mentors sprint planning, backlog grooming, and capacity allocation
- Tracks team health metrics (velocity, quality, on-call load, engagement) and acts on them
- Represents the frontend team to senior leadership, communicating progress, risks, and trade-offs to non-technical stakeholders
- Drives cross-team alignment with product managers, designers, backend leads, QA, and SRE
What You Will Need
- 8+ years of professional experience as a Front-end Developer, with at least 2+ years in a Lead, Tech Lead, or Staff-level role
- Deep expertise in Vue.js (Vue 2 & Vue 3, Composition API) and its ecosystem (Vuex/Pinia, Vue Router)
- Strong in TypeScript, modern JavaScript (ES2020+), HTML5, and CSS3 (Sass or other compiled CSS languages)
- Hands-on experience with modern Frontend DevOps (Vite, Webpack, NPM/Yarn, Babel, CI/CD pipelines)
- Solid testing experience with Jest, Vitest, or Cypress
- Experience building and scaling Micro Frontend Architectures in production
- Led performance optimization initiatives (Core Web Vitals, bundle size, runtime performance)
- Experience developing and testing across multiple browsers, platforms, and devices
- Strong understanding of cross-browser compatibility and responsive design
- 2+ years of direct people management experience (running 1:1s, performance reviews, hiring decisions)
- Proven mentoring experience and ability to coach engineers across seniority levels
- Strong stakeholder management skills — comfortable presenting to executives and influencing without authority
- Experience with agile delivery practices and team-level planning (OKRs, roadmapping, capacity planning)
- Handles team dynamics, resolves conflicts, and ensures healthy collaboration across personalities and seniority levels
- Excellent written and spoken English (B2+ / Upper-Intermediate or higher — comfortable in async written communication, technical documents, and cross-team meetings)
- Self-motivated, independent, organized, proactive, and highly responsive when working with multiple teams
- Empathy, emotional intelligence, and a service-oriented leadership style
- Likes to stay up-to-date on emerging technologies and brings them to the team thoughtfull
What We Offer
Enjoy a monthly meal allowance designed to enhance your daily routine.
Access comprehensive private health insurance.
Feed your curiosity with access to Spotify, LinkedIn Learning, Blinkist, MasterClass, Neoskola, and CloudGuru.
Level up with internal trainings covering AI fundamentals, coding, foreign languages, and a wide range of personal development skills.
Be part of a diverse team that’s as global as it gets, where every voice is heard and 50+ nationalities build together.
Become a Shareowner through our eligibility-based “ESOP” and own a piece of what you build.
Help build the team you want to work with and enjoy rewarding referral bonuses.
Opportunities to give back to your community through volunteering and purpose-driven social impact projects.
From global retreats to team-building activities, expect year-round events that turn into lifelong memories.
Get inspired by the greatest minds in the tech industry through events like our Tech & Dev Talks.
Work from anywhere in Turkey through our fully remote setup.
We provide equal opportunity in a zero-discrimination workplace and not just welcome but also embrace everyone without regard to sex, race, color, nationality, religion, gender identity, sexual orientation, disability status, citizenship, or marital status.Please follow Insider One on LinkedIn, Instagram, X, Facebook and Medium! 
