Senior Software Quality Engineer (AI-Accelerated) - Jetpac

Founded in 2014, Circles is a global technology company reimagining the telco industry with its innovative SaaS platform, empowering telco operators worldwide to effortlessly launch innovative digital brands or refresh existing ones, accelerating their transformation into techcos.

Today, Circles partners with leading telco operators across multiple countries and continents, including KDDI Corporation, Etisalat Group (e&), AT&T, and Telkomsel, creating blueprints for future telco and digital experiences enjoyed by millions of consumers globally.

Besides its SaaS business, Circles operates three other distinct businesses:

• Circles.Life: A wholly-owned digital lifestyle telco brand based in Singapore, Circles.Life is powered by Circles’ SaaS platform and pioneering go-to-market strategies. It is the digital market leader in Singapore and has won numerous awards for marketing, customer service, and innovative product offerings beyond connectivity.

• Circles Aspire: A global provider of Communications Platform-as-a-Service (CPaaS) solutions. Its cloud-based Experience Cloud platform enables enterprises, service providers and developers to deliver and scale mobile, messaging, IoT, and connectivity services worldwide.

• Jetpac: Specializing in travel tech solutions, Jetpac provides seamless eSIM roaming for over 200 destinations and innovative travel lifestyle products, redefining connectivity for digital travelers. Jetpac was awarded Travel eSIM of the Year.

Circles is backed by renowned global investors, including Peak XV Partners (formerly Sequoia), Warburg Pincus, Founders Fund, and EDBI (the investment arm of the Singapore Economic Development Board), with a track record of backing industry challengers.

Senior Software Quality Engineer (AI-Accelerated)

Company: Circles – Jetpac
Type: Full‑time 

About Jetpac
Jetpac, from Circles, is building a seamless way for travelers to stay connected globally. We offer eSIMs across 200+ destinations with a fast-growing consumer platform spanning web, mobile, and partner channels targeting the travel essentials segment. 

We operate as a high-velocity product team. Small teams, fast decisions, and direct ownership. We ship continuously, iterate quickly, and measure what matters.

The Role

We’ve reached meaningful scale and are rebuilding key parts of the platform to support the next phase of growth. You’ll work closely with engineers, product, design, and business teams to deliver foundational capabilities that unlock entire categories of product development.

The way software is tested has fundamentally changed. Static test cases and manual QA don’t scale in AI-assisted development environments.

This role focuses on building AI-accelerated testing systems that generate, execute, and validate tests at speed.

You’ll work across backend and platform systems to ensure quality through:

• AI assisted test generation

• fast and reliable execution

• pragmatic validation approaches

This is not a traditional QA role. You are building systems that ensure quality by design, not inspection. 

What You’ll Do

Build and operate systems that make testing scalable, fast, and largely automated across backend, web, and mobile.

• Build AI-assisted test generation systems from APIs to user flows (web + app)

• Design and maintain fast, parallel test execution pipelines integrated into CI/CD

• Implement smart validation approaches beyond strict assertions where needed

• Build and maintain end-to-end test coverage across critical user journeys

• Generate high-quality synthetic test data and scenarios, including multi-product flows

• Ensure tests are high-signal, low-flake, and easy for developers to trust

• Improve coverage across frontend, backend, and app layers without increasing manual effort

Focus areas include:

• Web and mobile app user flows (browse, cart, checkout, payments)

• API and backend validation supporting these flows

• Multi-entity scenarios (bundles, rewards, pricing)

• Test execution performance and reliability

Required Skills and Experience

3–5 years of experience in software quality engineering, SDET, or test infrastructure roles Strong programming skills with experience building automated testing systems, not just writing test cases

Hands-on experience with using AI-assisted workflows for test generation or automation, including:

• Frontend and app testing (web and/or mobile)

• End-to-end and integration testing across real user journeys

• API and service-level validation

• Building or working with test frameworks and execution pipelines

• Generating test cases, edge cases, and flows using LLMs/tools in Python 

• Reviewing, refining, and productionizing AI-generated tests

• Ensuring outputs are stable, repeatable, and high-signal

Strong understanding of:

• Testing distributed systems and multi-layer architectures

• Mocking, stubbing, and service isolation

• Test data setup and management

• Debugging failures across frontend, backend, and app layers

• Observability and debugging tools

• Performance or load testing basics

Example Projects You’ll Work On

• Build an AI-assisted system to generate test coverage for Frontend applications, Mobile App, APIs and backend services

• Design a fast, parallel test execution pipeline that scales with product complexity

• Create validation layers for cart and checkout flows across multiple product types

• Generate synthetic datasets to test edge cases in pricing, rewards, and promotions

• Improve reliability and reduce flakiness across existing automated test suites

What Success Looks Like

• Test coverage increases without proportional manual effort

• Test execution is fast, reliable, and trusted by engineers

• Bugs are caught early through strong automated validation

• Developers ship faster because testing is not a bottleneck

Hiring Process

• Technical Intro Conversation with CTO

• Live Practical Assignment (focused on test systems + AI usage)

Why Jetpac

• High ownership, low bureaucracy

• Real product impact at global scale

• Fast-moving team with strong engineering culture

• Flexible work setup across global teams
   

Circles is committed to a diverse and inclusive workplace. We are an equal opportunity employer and do not discriminate on the basis of race, national origin, gender, disability or age.

By submitting an application for this position, you, as the applicant, or your authorised representative(s), consent to Circles’ Candidate Data Protection and Privacy Policy. You also agree to the collection, use, and/or disclosure of your personal data by us solely for recruitment purposes as specified in the Policy. You acknowledge that you have read and understood the Policy, are aware of your rights regarding your personal data, and accept the terms relating to international data transfers, where applicable. You further understand that you may withdraw consent at any time, which may affect our ability to consider your application. In instances where your personal data or application is submitted by a third party, it is understood that such third party has been duly authorised by you to disclose the relevant personal data and provide consent on your behalf, and that you have been made aware of this Policy.

To all recruitment agencies: Circles will only acknowledge resumes shared by recruitment agencies if selected in our preferred supplier partnership program.

Please do not forward resumes to our jobs alias, Circles, employees or any other company location. Circles will not be held accountable for any fees related to unsolicited resumes not uploaded via our ATS.