Senior Backend Engineer - Tech Lead
- Remote, Hybrid
- Barcelona, Catalunya [Cataluña], Spain
- Madrid, Comunidad de Madrid, Spain
+1 more- Engineering
Job description
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 Backend Engineer - Tech Lead 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 Tech Lead Backend Engineer, you will combine hands-on coding with the responsibility of guiding your team’s technical direction and execution. Your role is to ensure that the solutions we build are scalable, maintainable, and aligned with Landbot’s mission.
You will act as the captain of the team:
Embodying our values, energy, and attitude,
Translating product requirements into clear technical strategies,
Fostering engineering excellence and growth in your teammates,
And keeping the team united, motivated, and focused on building meaningful impact for our users.
You won’t lead by spotlight or authority, but by example, care, and clarity—helping the team grow week after week, keeping its identity alive, and strengthening its soul.
Partner with Product to turn business goals into clear technical strategies and plans.
Guide technical decisions balancing short-term impact with long-term sustainability.
Design & evolve systems that scale with traffic, data complexity, and AI-driven use cases.
Write clean, maintainable code while continuously improving practices and quality.
Mentor and support your team, leading by example in code, reviews, and collaboration.
Safeguard delivery pace: reduce blockers, manage technical debt, and keep flow sustainable.
How You Will Make a Difference
You bring a product engineering mindset: your focus is always on building quality features that create real value.
You think beyond code: always asking “Is this important? Does it improve the customer’s life? Does it reduce costs or unlock new opportunities?”
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 balance speed and quality: knowing that quality isn’t the opposite of agility but its foundation.
You lead through ownership and autonomy, ready to make an impact both in the product and in the team.
You foster collaboration, feedback, and learning, because great teams outperform brilliant individuals.
Act as a bridge across teams: communicate risks, trade-offs, and timelines with stakeholders in a clear, constructive way.
Manage technical debt: make it visible, measurable, and actionable, creating structured repayment plans that align with business priorities.
Job requirements
You’re fluent in modern backend stacks (e.g., Node.js, TypeScript, Python) and have experience with relational databases (Postgres, MySQL) as well as NoSQL systems like Redis, MongoDB.
You’re comfortable working with complex backend stacks and architectural approaches (e.g., Domain-Driven Design), knowing when to leverage them to bring clarity and scalability—and when to avoid dogmatic application that slows delivery.
Passionate about testing everything: unit, integration, performance, quality is your compass.
You’re curious about how to bring AI models into production systems, from integrating APIs to optimizing performance and reliability.
Experience with AI/ML APIs, vector databases, or data pipelines is a plus, but above all you bring a mindset of building products where AI becomes a core capability.
Proven experience building web applications at scale and working with distributed systems.
Hands-on experience operating services in production environments, with knowledge of cloud infrastructure (GCP, AWS, or Azure).
Obsessed with continuous improvement: you seek feedback, give constructive feedback, and raise the bar for yourself and others.
You thrive in collaborative environments, value feedback, and help others raise the bar.
You’re passionate about your craft, the product, and the impact we create for our customers.
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!
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