Senior Full-stack QA Engineer

Bonapolia; United States; Remote; USD 120,000 - 160,000; Full time

Job summary

Bonapolia is seeking a Senior QA Engineer to own test strategy for a data-collection platform spanning a worker mobile application, back office, and backend services. The role requires fluent Russian for team communication and is performed with a CET time zone.

It offers a B2B contract, negotiated rate by seniority and client budget, and monthly invoicing. The project includes testing across onboarding, task processing, data capture, review workflows, and financial/payout flows, with automation

Qualifications

• Functional, integration, API, and end-to-end testing across onboarding, task processing, data capture, review, earnings, and payouts
• Testing TTL, expiry, reassignment, quotas, targeting, financial flows, privacy, consent, retention, and erasure
• Experience testing financial flows, such as accruals, balances, batch payouts, and reconciliation with third-party payout providers; understanding of data privacy requirements, including consent management, data retention, and erasure.
• Experience testing integrations with internal and third-party services, such as authentication, CRM and push notifications, payout partners, LLM providers, and cloud storage (S3).
• Strong understanding of microservices, event-driven and asynchronous architectures, including retries, timeouts, idempotency, duplicate events, and eventual consistency.
• REST/gRPC API testing and automation with Postman
• Automated testing with Playwright, Cypress, Appium, or similar frameworks
• Troubleshooting using logs, metrics, traces, databases, message queues, SQL/MySQL, Kafka, Grafana, Kibana, and CloudWatch
• Ability to validate consistency across the mobile app (Kotlin), WebView, back office, backend APIs, and distributed services, and troubleshoot partial failures and partner/service outages.
• CI/CD, Docker, AWS, distributed-service testing, test strategy, release validation, and production issue analysis

Responsibilities

• Own test strategy, test planning, and release sign-off for the platform
• Test mobile media capture and upload under real-world device and network conditions
• Verify task lifecycle, quotas, submissions, review workflows, segmentation, and isolation
• Validate financial, compliance, consent, erasure, and audit flows
• Build and maintain end-to-end and API automation in CI, including load testing

Skills

API testing

End-to-end testing

Postman

Playwright

Cypress

Appium

CI/CD

Docker

AWS

Data privacy

Kafka

SQL/MySQL

Logging/Monitoring

Tools

Postman

Playwright

Cypress

Appium

Job description

Tech Level: Senior

Language Proficiency: Requires fluent Russian, as part of the team communication is conducted in Russian

Employment type: Full time

Candidate Location: Poland,other EU countries, Armenia, Georgia, Kazakhstan

Working Time Zone: CET

Start: asap

Planned Work Duration: Preliminary 3 months with potential for extension

Customer Description:

The customer is a global mobility and urban services platform offering ride-hailing, intercity travel, delivery, and task assistance.

Project Description:

Data-collection platform spanning a worker mobile application, back office, and backend services.

Project Phase: Ongoing

Project Team: frontend, 2 backend, QA, product manager

Hard Skills / Must Have:

• Functional, integration, API, and end-to-end testing across onboarding, task processing, data capture, review, earnings, and payouts
• Testing TTL, expiry, reassignment, quotas, targeting, financial flows, privacy, consent, retention, and erasure
• Experience testing financial flows, such as accruals, balances, batch payouts, and reconciliation with third-party payout providers; understanding of data privacy requirements, including consent management, data retention, and erasure.
• Experience testing integrations with internal and third-party services, such as authentication, CRM and push notifications, payout partners, LLM providers, and cloud storage (S3).
• Strong understanding of microservices, event-driven and asynchronous architectures, including retries, timeouts, idempotency, duplicate events, and eventual consistency.
• REST/gRPC API testing and automation with Postman
• Automated testing with Playwright, Cypress, Appium, or similar frameworks
• Troubleshooting using logs, metrics, traces, databases, message queues, SQL/MySQL, Kafka, Grafana, Kibana, and CloudWatch
• Ability to validate consistency across the mobile app (Kotlin), WebView, back office, backend APIs, and distributed services, and troubleshoot partial failures and partner/service outages.
• CI/CD, Docker, AWS, distributed-service testing, test strategy, release validation, and production issue analysis

Hard Skills / Nice to Have:

• Experience testing media capture and upload on mobile devices (photo, voice, video, text), including device fragmentation, permissions, poor or unstable networks, resumable uploads, and on-device validation.
• Experience testing ML/LLM-powered features and validating AI-generated outputs.

Responsibilities and Tasks:

• Own test strategy, test planning, and release sign-off for the platform
• Test mobile media capture and upload under real-world device and network conditions
• Verify task lifecycle, quotas, submissions, review workflows, segmentation, and isolation
• Validate financial, compliance, consent, erasure, and audit flows
• Build and maintain end-to-end and API automation in CI, including load testing

Technology Stack: Kotlin, Playwright/Cypress/Appium, Postman, REST/gRPC APIs, SQL (MySQL), Kafka, Grafana, Kibana, AWS (S3, CloudWatch), Docker, CI/CD

Interview stages:

English check (15 minutes)

Internal technical interview (1-1,5 hour)

Client interview (1 hour)

Client interview – cultural fit (45 minutes)

What we offer

• Model: B2B contract with Bonapolia - one contract, one monthly invoice
• Rate: negotiated per candidate seniority and client budget
• Payment: monthly invoice, paid on the same schedule the client pays us (usually 30 days)
• Contract written under your country's law
• We handle the client-side paperwork: MSA, NDA, invoicing

About Bonapolia

Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US.

More at

Originally posted on Himalayas