Full Stack Engineer - Backend at blinq

What is Blinq? Blinq is building the fastest, most intuitive way to share who you are and remember who you meet. What started as the world’s #1 digital business card is now the starting point for over 50 million new relationships a year - and growing at unicorn pace.   Our vision is to build the world’s intelligence layer for professional relationships - one that remembers for you, prompts when it matters, and keeps you in play. If that’s the kind of scale and ambition you want to be part of, you’re in the right place.   Why You’ll Love It Here • Rapid growth: Doubling ARR every few months, expanding our product surface, and rapidly building our team across Sydney, San Francisco, Melbourne, and New York. • Well-resourced: $45m+ raised from the likes of Blackbird, Touring Capital, Hubspot Ventures, and Square Peg - we’re continuously investing in the people and tools that fuel our mission. • A rare moment to join: We’re hitting an inflection point - big enough to have momentum, small enough for you to shape the journey. • Customers love it: 140k+ reviews and a 4.9/5 rating on the App Store - people around the world rely on Blinq to make that first interaction count. • We work in person, on purpose: We believe creativity and energy are better face-to-face - so we spend 3 days a week in the office and the rest where you work best.   Engineering at Blinq Our engineering team is the engine behind Blinq’s success. We’re building tools that make sharing who you are instant and human. Every line of code, every release, and every experiment is focused on driving meaningful impact. If you thrive on solving complex, high-impact problems with a tight-knit team, you’ll feel right at home here. Role & Impact As a Senior Backend Engineer at Blinq, you’ll build and maintain the APIs and services powering everything from identity sharing to real-time analytics. You’ll design systems that scale, contribute to architectural decisions, and ensure performance, reliability, and clean abstraction across our platform. What You’ll Do • Experience building using Node.js and Typescript • Design systems that scale from user onboarding to QR event ingestion • Collaborate with frontend, mobile, and data teams to deliver cohesive features • Improve observability, testing, and service performance • Build features from zero to one in a highly collaborative team What You’ll Bring • 3+ years in backend development, ideally in fast-paced product teams • Deep Node.js experience, with strong fundamentals in async architecture • Familiarity with GCP or other cloud environments • Good understanding of system design, data modelling, and API security • Clear communicator and collaborator across functions • Familiarity with integrations and MCP What You Get We hold a high bar and move with intent. You’ll get the clarity, trust, and ownership to meet it - and a team that pushes to do the best work of our lives. We back that with: • Equity & ownership: We’re building something massive, and we want you to share in the upside. Genuinely. • Competitive salary & growth path: As Blinq grows, your role and compensation grow with it - no glass ceilings here. • Generous paid time off: At least 20 days fully disconnect each year, with a flexible policy beyond that. • Free food: Enjoy daily breakfast and lunch at some of our offices, plus an always-stocked snack bar.