Senior Softwar Engineer Integrations (Sydney)

Manifest Creative Club; Sydney; On-site; AUD 140,000 - 190,000; Full time

Benefits offered by this job

Joint ownership

Autonomy

Best software/tools

Learning and growth

Job summary

Humanitix is seeking a Senior Software Engineer, Integrations to shape how our platform connects with external systems. You’ll extend our public API, grow MCP integrations, and partner with Google, HubSpot, and distribution platforms to broaden our ecosystem.

Join a mission-driven team that values curiosity, design excellence, and practical documentation, where you’ll own end-to-end integration challenges and help us deliver robust, scalable connections for AI-enabled experiences.

Qualifications

• Be ethically aligned and genuinely inspired by our mission.
• A good sense of humour and warm heart - your colleagues are awesome human beings who bring their personality into the office.
• A great work ethic and the confidence to escalates problems and ask your colleagues for help.
• A good level of experience in our stack (JavaScript/TypeScript, Node, React, AWS, MongoDB).
• Experience designing or consuming APIs at scale, and an interest in emerging standards like MCP and AI-agent tooling.
• Experience integrating with third-party platforms/partners (payments, auth, data sync, webhooks).
• Expert in documentation and testing — integration work lives or dies on clear contracts.
• Understanding of design principles behind a scalable, secure application.
• A curiosity and a thirst for learning.
• A keen eye for design and the desire to add the extra 1% that make good integrations great.

Responsibilities

• Extending and hardening our public API so hosts, developers, and third parties can build on top of Humanitix reliably.
• Building and maintaining MCP integrations, enabling AI assistants and agents to interact with Humanitix data and workflows.
• Growing our footprint with external partners such as Google, HubSpot, and reseller/distribution platforms (e.g. Viator/TripAdvisor via OCTO) — covering listings, sync, payments, and reconciliation.
• Designing integration patterns that are secure, well-documented, and easy for both internal teams and external partners to adopt.
• Owning problems end-to-end: from API design and data sync through to monitoring, error handling, and partner support.

Skills

JavaScript/TypeScript

Node.js

React

AWS

MongoDB

APIs at scale

Documentation

Tools

MCP (Model Context Protocol)

Job description

Location

Sydney, Australia

Schedule

Full time

Join the Team That’s Changing Ticketing for Good

At Humanitix, we’re flipping the script on ticketing. Instead of lining the pockets of profit-driven platforms, we turn booking fees into funding for education, healthcare, and a better world — over $20.7M raised so far. We’re a social enterprise powered by purpose, and the belief that businesses can put humanity and the planet first.

We’re also a startup with a big heart. Our team culture is built on kindness, empathy, and connection, where you’re free to be yourself and do your best work — surrounded by people who care.

The Role: Senior Software Engineer, Integrations

We're growing our Integrations team and looking for a senior engineer who wants to shape how Humanitix connects to the outside world. This role sits at the centre of two big pushes: making our platform genuinely useful to AI systems and agents, and deepening our connections with external partners.

You’ll Work On

• Extending and hardening our public API so hosts, developers, and third parties can build on top of Humanitix reliably.
• Building and maintaining MCP (Model Context Protocol) integrations, enabling AI assistants and agents to interact with Humanitix data and workflows.
• Growing our footprint with external partners such as Google, HubSpot, and reseller/distribution platforms (e.g. Viator/TripAdvisor via OCTO) — covering listings, sync, payments, and reconciliation.
• Designing integration patterns that are secure, well-documented, and easy for both internal teams and external partners to adopt.
• Owning problems end-to-end: from API design and data sync through to monitoring, error handling, and partner support.

Requirements

• Be ethically aligned and genuinely inspired by our mission.
• A good sense of humour and warm heart - your colleagues are awesome human beings who bring their personality into the office.
• A great work ethic and the confidence to escalates problems and ask your colleagues for help.
• A good level of experience in our stack (JavaScript/TypeScript, Node, React, AWS, MongoDB).
• Experience designing or consuming APIs at scale, and an interest in emerging standards like MCP and AI-agent tooling.
• Experience integrating with third-party platforms/partners (payments, auth, data sync, webhooks).
• Expert in documentation and testing — integration work lives or dies on clear contracts.
• Understanding of design principles behind a scalable, secure application.
• A curiosity and a thirst for learning.
• A keen eye for design and the desire to add the extra 1% that make good integrations great.

Why You’ll Love It Here

• You will have JOINT OWNERSHIP to contribute and change the customer experience process & be responsible for its success
• We do not micromanage anyone, you are trusted, have full autonomy and are treated as an adult
• We use the absolute BEST software, tools & equipment to do our job.
• We ONLY hire other smart, ambitious people who LOVE to learn and grow
• As a leading team member your input will be absolutely CRITICAL to the success of the company in all areas – including design, marketing and product.

Our Values

Show Up

We go all-in for our customers and for each other because we care about what we do. It's okay to be yourself, be vulnerable and say 'I love you'. Try it.

Be bold

Think for yourself, say what you believe and have the curiosity and courage to lead us further forward into new territory. Let's go.

The world is not f*cked

Yep, it can be a lot better, but there's no future in giving up. We create a better world by choosing positivity, investing in humanity and forging pathways to progress. Be humane.

Keep it weird

We celebrate humanity, thrive on individuality, and love all the ways we are different. Bring your true self to work and be inclusive, open and transparent.

This is our second home

The truth is we spend more of our time awake at work than anywhere else in life. We believe a truly enjoyable workplace is critical to a life well-lived.

We Hire Based On Experience, Skills And Passion.