Backend Engineer (Mid-Level) – Ruby on Rails

About Us

Hello Clever is building the next generation of payments and loyalty infrastructure by turning every transaction into growth for merchants. Were an AI-powered fintech operating across 22 markets helping businesses move money in real time and convert payments into measurable outcomes like higher repeat rates bigger baskets and smarter customer engagement. Our platform combines local account-to-account rails embedded cashback & loyalty products and powerful data intelligence (Clever AI) so merchants can launch offers optimise ROI and scale faster all through a single integration.

Were also proud to be recognised on the global stage including being named Australias fastest-growing fintech Top 100 Forbes Asia ranked in the AFR Fastest-Growing Companies and selected for Inc. Magazines Best in Business alongside some of the most iconic companies in the world.

Responsibilities

• Design build and operate reliable backend services for payment products using Ruby and Ruby on Rails.
• Build and maintain APIs services and third-party integrations.
• Implement payment flows across multiple currencies countries and payment methods.
• Handle refunds retries idempotency webhooks asynchronous processing and partial failures.
• Write clean maintainable and testable code; participate in code reviews and refactoring.
• Improve system performance reliability observability and security.
• Investigate production issues contribute to root-cause analysis and prevent regressions.
• Collaborate with product QA and other engineers; communicate risks early.

Requirements (Must Have)

• 3 years of professional backend engineering experience for middle level or 5 years for senior level including hands-on experience building applications with Ruby and Ruby on Rails.
• English communication proficiency at B2 level or above.
• Experience designing building and operating production APIs and backend services including authentication and authorization pagination validation and consistent error handling.
• Practical experience troubleshooting production issues using application logs metrics stack traces and database queries.
• Working knowledge of relational databases preferably PostgreSQL or MySQL including schema design fundamentals indexes transactions and writing SQL for investigation and troubleshooting.
• Experience working with background jobs and asynchronous workflows including queues retries failure handling and idempotency.
• Experience debugging issues across APIs background jobs databases and external service integrations.

Nice to Have

• Payment or fintech experience.
• Redis Sidekiq Kafka (or similar) experience.
• AI-assisted coding/debugging tools (Claude Code/Copilot/Cursor) with strong review discipline.
• Cloud infrastructure and containers.
• PCI-aware development practices.

What We Value

• Strong ownership and accountability for quality and release readiness.
• Calm structured risk-based thinking under delivery pressure.
• Clear communication with engineering product and business stakeholders.
• Practical mindset: improve processes without over-engineering.
• Continuous learning and high attention to detail.

Why join Hello Clever

• High-Growth Fintech: Be part of a company leading the future of real-time payments and loyalty solutions.
• Global impact Were live in 22 markets and growing fast.
• Category-defining product Real-time payments instant cashback AI-powered merchant tools.
• Mission-driven Were here to make money smarter fairer and faster for everyone.
• Dynamic Culture: Join a passionate results-driven team that values innovation and collaboration.

How To Apply

We Like To Keep Things Simple But We Also Want To Make Sure This Is The Right Fit For Both Of Us. Heres What To Expect

• Phone screen quick phone screen to learn a bit more about you your experience and why youre keen to join the team
• A Technical Interview To get to know you your experience and what makes you tick.
• A Problem Solving Interview A final round virtual interview to showcase your skillset and your technical abilities

Sound like you Lets talk. Drop us a note at

Direct applicants only no agencies.