Lead Software Engineer, Backend (Python/Django) in Barcelona

Are you a Python/Django wizard who thrives in a hands-on environment but also enjoys helping others grow? Do you love building robust, scalable backend systems, from architecture to production, and mentoring others to do the same? If so, read on.

BLING is a mission-driven, user-first, and VC-backed fintech company growing extremely fast. We launched our new product in 2024 and already have 150k+ accounts on which we’ve processed more than 300 million euros.

We're now looking for an experienced Lead Backend Engineer to lead our backend efforts — someone ambitious to grow, who codes daily, leads by example, and helps scale both tech and people.

🔧 What You’ll Do

• Be 100% hands-on: Build, maintain, and scale backend systems in Python/Django.
• Design architecture: Own backend architecture decisions, collaborating closely with our infra and security teams.
• Manage infrastructure: Work comfortably with AWS, especially RDS, ECS, and Kafka/MSK.
• Lead & mentor: Guide a growing team of backend engineers through mentorship, technical leadership, and hiring.
• Own your scope: Take full responsibility for projects — from design to deployment — with autonomy and accountability.

🧰 Our Stack

• Languages & Frameworks: Python, Django, DRF
• Infra & Tools: AWS, Docker, Kafka, PostgreSQL, Redis, MongoDB
• Architecture: Microservices + event-driven systems

✅ What We’re Looking For

• You’ve been the go-to backend expert for 8+ years, leading projects, owning architecture, and shipping code in scale-up environments
• Proven experience as Lead / Staff / Principal level
• Deep expertise in Python and Django — you’ve built and shipped impactful products
• Comfortable with AWS and containerized infrastructure
• Experience in team leadership — you’ve mentored others and led by example
• Ownership mindset, proactive attitude, and strong problem-solving skills
• Strong communication skills in English
• Bonus: experience or interest in AI development platforms like Cursor

🎁 What We Offer

• Competitive salary
• Health insurance + meal allowance
• Hybrid working model (2 remote days per week)
• Autonomy, trust, and a mission that matters — helping people overcome financial stress with transparency and empathy
• A collaborative and driven team that’s low-ego, high-talent, and focused on impact

Let’s build something meaningful together. Apply now — we’d love to meet you!