Zeller Tech Stack

Integrated payments and business banking platform for Australian SMBs

Financial Services Melbourne, Victoria 201–500 employees Founded 2020 Privately Held

Zeller operates a full-stack fintech platform combining EFTPOS, invoicing, accounts, and card issuance for small-to-medium Australian businesses. The tech stack is modern and distributed (TypeScript, Node.js, Go, GraphQL, AWS Lambda, DynamoDB, Kafka, React Native) — built for horizontal scaling across payments and banking products. Active hiring tilts engineering-heavy relative to sales, and the project roadmap (terminal payments, settlements, budgeting, mobile app, POS) reflects a company broadening product surface area while grappling with payments platform scaling and sales team expansion.

Tech Stack 33 technologies

Core StackTypeScript Node.js GraphQL AWS AWS Lambda DynamoDB Go HubSpot Kafka Jest React Native React Terraform Java JavaScript Datadog Cypress DocumentDB EventBridge API Gateway EFTPOS AWS EventBridge AWS SQS AWS ECS SQL iOS Android BPMN Charles Android Studio+3 more

What Zeller Is Building

◆Challenges

Outdated banking solutions
Slow applications
Protracted onboarding
Complex multi-party deals
Defining sales roadmap
Expanding partner network
Opaque pricing
Scaling sales team
Scaling payments platform
Audit preparation

▲Active Projects

Sales roadmap definition
Terminal and ecommerce payments
Settlements
Pipeline establishment
Pipeline development
Integration of zeller and third party products
Budgeting and forecasting mechanics
Modern payments and banking platform
Zeller mobile app
Zeller point of sale

Hiring Activity

Decelerating45 roles · 10 in 30d

Department

Engineering

Sales

Marketing

Finance

Ops

Risk

Support

Seniority

Mid

Senior

Lead

Junior

Manager

Notable leadership hires: Backend Tech Lead

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About Zeller

Zeller builds an integrated financial platform aimed at Australian businesses that are underserved by fragmented, opaque legacy solutions. The product consolidates payments processing (EFTPOS and online), invoicing, accounting features, and card issuance into a single interface with transparent pricing. Founded in 2020, the company operates from Melbourne with 201–500 employees and hires across Australia, India, and the United Kingdom. Zeller targets SMBs and mid-market operators seeking an alternative to cobbling together multiple financial service providers.

HeadquartersMelbourne, Victoria

Company Size201–500 employees

Founded2020

Hiring MarketsIndia, Australia, United Kingdom

Frequently Asked Questions

What tech stack does Zeller use?

Backend: TypeScript, Node.js, Go, GraphQL, AWS (Lambda, DynamoDB, DocumentDB, EventBridge, SQS, ECS). Frontend: React, React Native, iOS, Android. Data/messaging: Kafka, SQL. Ops: Terraform, Datadog. Testing: Jest, Cypress.

What is Zeller working on?

Key projects include terminal and e-commerce payments expansion, settlements infrastructure, mobile app development, POS solutions, budgeting and forecasting, third-party integrations, and sales roadmap definition.