Senior Backend Engineer

Matchbox; Sydney, Melbourne; Hybrid; AUD 150,000 - 190,000; Full time

Job summary

Blinq is seeking a Senior Backend Engineer to design, build, and operate scalable backend services and APIs using Node.js and TypeScript. You will own features end-to-end from discovery through deployment, improve reliability and security, and work across product, web, mobile, design, and data teams.

The role offers a hybrid Sydney/Melbourne setup with a strong focus on AI-native development and collaborating to push the product forward in high-velocity environments.

Qualifications

• 5+ years of experience building production backend systems.
• Strong experience with Node.js and TypeScript.
• Experience in API design and data modelling.
• Cloud experience, preferably Google Cloud Platform (GCP).
• Ability to own complex technical work end‑to‑end and influence architecture.

Responsibilities

• Design, build, and operate scalable backend services and APIs.
• Own features end-to-end from discovery to rollout and monitoring.
• Improve reliability, performance, security, and testability of backend systems.
• Collaborate with product, web, mobile, design, and data teams.
• Contribute to code reviews, technical planning, and mentoring.

Skills

Node.js

TypeScript

API design

Data modelling

Databases

Distributed systems

Backend security

GCP

Job description

# Senior Backend EngineerBlinqHybrid • Sydney, New South Wales; Melbourne, VictoriaFTE## Role OverviewAbout BlinqBlinq is the AI contacts app for people who meet people.We're on a mission to unlock the world's relationship potential. So much of what's possible in the world is locked inside relationships that never quite happen. A missed conversation, a forgotten follow-up, the right person at the wrong time. We're building so those chances aren't left to chance.What started as the world's #1 digital business card is now used by 4 million professionals and at 93% of the Fortune 500. We've raised $45m+ from Blackbird, Square Peg, HubSpot Ventures, and Touring Capital.Learn more: https://blinq.me/Why join BlinqYou want to be part of an AI-native company at an inflection point. Big enough to have real momentum, customers, and resources. Small enough that the work you do shapes where it goes from here.You want to do the best work of your life alongside people doing the same. We hold an unusually high bar for talent and we hire people who treat that as a feature, not a threat.You want to build something globally ambitious from a part of the world that doesn't always think this big. Our team is in Sydney, Melbourne, San Francisco, and New York, and we're betting that the next category-defining company in our space comes from Australia.You want to work in person, on purpose. Three days a week in the office, two wherever works for you. Creative energy and momentum compound face to face.How we workWe've all joined Blinq to find out how good we really are. That shows up in how we work:We are professional optimists. We think what's possible first and let constraints come second.We hold an insanely high talent bar. A players only.We are obsessed with craft. The details are the thing, not the polish on top of it.We are truth obsessed. We say what's true even when it's uncomfortable, and we have the courage to pursue contrarian but correct bets.We do more with less. Calculated frugality and beautiful simplicity guide how we build.We are all here to genuinely do our life's best work.Engineering at BlinqOur 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.What You'll DoDesign, build, and operate scalable backend services and APIs using Node.js and TypeScriptOwn features end-to-end — from technical discovery and data modelling through to rollout, observability, and ongoing improvementBuild systems that support high-volume, real-time experiences across contact sharing, lead capture, analytics, and third-party integrationsImprove the reliability, performance, security, and testability of our backend platformMake pragmatic architectural decisions, improve core abstractions, and reduce technical debt as the product scalesCollaborate closely with product, web, mobile, design, and data teams to turn ambiguous problems into simple, high-impact solutionsContribute to code reviews, technical planning, and system design, helping other engineers do their best workUse and help evolve AI-assisted engineering workflows that improve developer leverage without compromising qualityWhat You'll Bring5+ years of experience building and operating production backend systems, ideally within fast-moving product or startup environmentsStrong experience with Node.js and TypeScript, including a solid understanding of asynchronous and event-driven architecturesStrong foundations in API design, data modelling, databases, distributed systems, and backend securityExperience designing reliable, observable services in a cloud environment; GCP experience is preferredA track record of owning complex technical work from problem definition through to productionStrong product judgment and the ability to balance speed, scalability, quality, and customer impactClear communication skills and a collaborative approach to technical decision-making, code reviews, and mentoringCuriosity about AI-native development and experience using AI tools to improve how you design, build, test, or operate software