Senior Frontend Engineer - AI SaaS

About Landbot

Operating in more than 80 countries, Landbot offers a platform that helps companies to create unbeatable chatbot conversations in different channels: Web, WhatsApp, and Messenger.

At Landbot , we’re building a high-performance team that blends engineering excellence, product mindset, and customer obsession . We believe quality and speed go hand in hand — and we’re looking for a Senior Frontend Engineer to help us scale our platform and deliver real impact.

About the team

• Human-first: Empathy, respect, and diversity as drivers of innovation.

• Customer-centric: Value first; progress measured by real impact, not vanity metrics.

• Collaboration: One team, shared decisions, and early draft culture.

• Unity: Trust, psychological safety, and continuous improvement as teams of teams.

• Trust & commitment: Open debate, then full support once decisions are made.

• High performance: Accountability, resilience, and daily improvement.

• Adaptability: Curiosity, constant learning, and just enough process to stay agile.

• Challenging mindset: Question assumptions and the status quo to keep evolving.

About the Position

As a Senior Frontend Engineer at Landbot, you’ll play a key role in shaping how users interact with our product. This is not just about writing code, it’s about crafting experiences , building systems that scale, and helping evolve our platform to meet tomorrow’s challenges.

• Write clean, maintainable, and testable code, with simplicity and quality as guiding principles.

• Collaborate closely with Product and Design teams to deliver exceptional user experiences.

• Act as a go-to expert in testing , driving a quality-first mindset across the frontend.

• Build reusable UI components and design systems adaptable to different contexts: web apps, browser extensions, desktop, and mobile applications.

• Provide technical leadership in design discussions and decisions that impact multiple teams or the company as a whole.

• Make thoughtful trade-offs between short-term delivery needs and long-term technical health.

• Document your work rigorously (ADRs, RFCs, postmortems) and share learnings across the org.

• Stay ahead of industry best practices and bring fresh, practical ideas into the team.

• Lead by example: mentor teammates, give constructive feedback, and raise the engineering bar.

This role blends hands-on engineering with technical leadership : you’ll be a go-to reference for frontend excellence and help elevate the entire team.

How You Will Make a Difference

• You bring a Product-Engineering mindset : solving user problems and improving the product is your ultimate goal.

• Stay close to the user : deeply understand who they are, their problems, frustrations, and behaviors. Great engineers don’t just write code — they connect technology to real people, ensuring our work creates meaningful impact in the market and in users’ lives.

• You are your own first user: you live and breathe the product, ensuring it meets your own high standards of quality.

• You constantly ask: “Is this truly valuable? Will this feature improve our users’ lives, reduce platform costs, or unlock impact?”

• You see user problems as shared problems , not “someone else’s problem.”

• You act with autonomy and accountability, ready to have an impact at both the product and team level.

• You help create a culture of excellence, continuous learning, and ownership.

• Strong expertise in TypeScript, React, Redux, and modern frontend ecosystems

• Deep experience with testing at all levels : unit, integration, functional, and E2E.

• Experience building and maintaining complex UIs with reusable components and/or micro-frontends.

• Strong software engineering fundamentals and ability to simplify complex problems.

• Experience shipping to production frequently (we deploy multiple times per day).

• Familiarity with performance optimization and scaling frontend applications.

• Passion for feedback, learning, and mentoring others to raise engineering standards.

• Strong collaboration mindset, you value product, design, and cross-team partnerships.

• (Bonus) Exposure to AI-driven interfaces or curiosity about designing UX for AI-powered features.

• Fluent in English and Spanish .

• We require eligibility to work in Spain and are also open to collaboration agreements.

Hiring Process

1️⃣  HR - We know each other, validate culture fit, address your concerns, validate details and experience, and tell you more about Landbot (40 min).

2️⃣  Interview with the Director of Engineering (60 min)- In this stage, you’ll meet our Director of Engineering , who will dive deeper into your experience, ways of working, and technical perspective . The focus is on understanding how you approach challenges, lead solutions, and fit into our team culture . It’s also your opportunity to learn more about our vision, strategy, and where the engineering team is heading .

3️⃣ Technical Interview with the Tech Team (60 min) - You’ll meet members of our tech team to go deeper into your technical experience. We’ll talk through how you approach problem-solving, system design, and architecture decisions , as well as how you collaborate with others to deliver solutions . It’s a two-way conversation, so feel free to ask about our challenges, tech stack, and ways of working.

4️⃣ Met the CEO (15 min).

Benefits

• Hybrid work model: flexibility to work remotely, from our Barcelona office ️, or a combination of both.

• Collaborative work environment.

• Flexible working hours.

• Paid time off and flexible holidays: 26 paid days per year (23 regular days + December 24th & 31st) , plus one additional day off on your birthday.

• Annual budget for training and professional development .

• Transportation ticket .

• English and Spanish lessons .

• Flexible compensation plan through Cobee.

• Team-building activities.

• Referral program with bonuses for bringing in talented professionals.

How to Apply

Please submit your résumé along with a cover letter explaining why you are the ideal candidate for Landbot and this role. We look forward to hearing from you!