mx51 Tech Stack

Payment platform for merchant acquirers and fintech partners

Financial Services Sydney, New South Wales 51–200 employees Founded 2020 Privately Held

mx51 operates a Payment as a Service platform targeting merchant acquirers and fintech partners in Asia-Pacific. The tech stack (Go, PostgreSQL, Kubernetes, gRPC) reflects a backend-heavy, microservices-first architecture built for high-throughput payments processing. Current hiring skews engineering and design (7 of 13 roles), with active projects spanning containerization, fault-tolerant microservices, and design system evolution—indicating infrastructure maturation alongside product expansion.

Tech Stack 11 technologies

Core StackGo PostgreSQL Docker Kubernetes AWS gRPC Xero Zendesk Figma Excel Material Design

What mx51 Is Building

◆Challenges

Reducing bottlenecks
Complex payments problems
Scalability and performance
Increase company efficiency
Company efficiency improvement
Financial information compliance
Consolidating data on real-time dashboard
Negotiating complex contracts
Expanding merchant relationships
Negotiating high-value contracts

▲Active Projects

Contract management system
Strategic procurement and vendor management function
Design system evolution
High-throughput fault-tolerant microservices
Containerize applications and deploy to kubernetes
Evaluate ai tooling to improve automation
Strategic partnership negotiations
Commercial framework development
Strategic partnership agreements
Merchant experience design across suite of products

Hiring Activity

Accelerating15 roles · 8 in 30d

Department

Engineering

Design

Sales

Finance

Support

Seniority

Senior

Mid

Manager

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About mx51

mx51 is an Australian fintech founded in 2020, headquartered in Sydney. The company provides bank-grade Payment as a Service infrastructure for merchant acquirers and payment service providers, enabling them to connect to merchants and end customers at scale. The platform is built on modern cloud-native foundations (AWS, Kubernetes, PostgreSQL) and serves partners across Asia-Pacific. Internal challenges center on payments complexity (contract negotiation, high-throughput processing, real-time data consolidation), with strategic focus on expanding merchant relationships and improving operational efficiency.

HeadquartersSydney, New South Wales

Company Size51–200 employees

Founded2020

Hiring MarketsMalaysia, Australia, Kyrgyzstan, Philippines

Frequently Asked Questions

What tech stack does mx51 use?

mx51 uses Go and PostgreSQL for core services, Kubernetes and Docker for orchestration, gRPC for service communication, and AWS for infrastructure. Supporting tools include Xero, Zendesk, Figma, and Material Design.