Senior Full Stack Engineer (Spain)

EngineerEngineerFull TimeRemoteSeniorTeam 201-500

Location

Spain

Posted

53 days ago

Salary

€4.5K - €6.5K / month

Seniority

Senior

Job Description

Senior Full Stack Engineer (Spain)

Kilo

About the team Kiloverse is the operational force that helps ventures grow — building the systems, teams, and infrastructure that turn ideas into scalable businesses. Behind every fast-growing product, there’s a group of people who think like owners, act fast, and execute with precision. Here, you’ll find people who want to break big in their careers — working side by side with entrepreneurs and founders to build ventures that redefine the health, wellness, beauty, or travel industries. Get ready to - Contribute to full-stack development, owning features across the stack using React and Next.js, with a strong focus on architecture and complex business logic - Dive deep into complex domain logic, third-party integrations, and performance challenges across the stack - Take ownership, make architectural decisions, and influence how our platform evolves end-to-end - Design clean, well-documented APIs and collaborate closely with frontend engineers using React / Next.js - Optimize application performance, security, and infrastructure reliability - Collaborate with product, operations, and engineering teams to deliver impactful features - Mentor other engineers, delegate tasks, and help grow a strong, senior-level engineering team - Improve development processes, code quality, and engineering standards across the platform We expect you to - Bring strong full-stack engineering fundamentals with a solid backend foundation (clean architecture, design patterns, testing) - Have solid experience with PHP, ideally Laravel or Symfony (or be confident you can ramp up quickly), and strong experience with React / Next.js - Be comfortable working across the stack and stepping outside a narrow role when needed - Confidently design and navigate complex business and domain logic - Write reliable, well-tested code and follow best engineering practices - Work autonomously, from system design through implementation, deployment, and optimization - Take a senior mindset: ownership, technical leadership, and proactive problem-solving Salary Gross salary range is 4500-6500 EUR/month. Location This position is remote, with the opportunity to work from our office in Barcelona, Spain. Speaking of perks: Own your wellness 7 extra days off, 3 for weddings. Shape your growth path Builders never stop learning. Coaching, mentorship, training, conferences, online courses, subscriptions, books – you’ve got a €1100 yearly budget to fuel personal or team growth. You pick the path – we’ll back you all the way. Drive global impact This is where ambition scales. Build impact across 30+ brands worldwide. Launch bold projects. Even step in as a co-founder – we reward those who push further. And if you bring in more great people, you get €1500 for every successful referral. *additional conditions apply based on your residence location.

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