Senior QA Engineer, Core Wallet (Remote - North America)

Jobgether; North America; Hybrid; GBP 98,000 - 123,000; Full time

Job summary

A leading blockchain development company is seeking a Senior QA Engineer to design and build end-to-end testing frameworks in a remote-first environment. With a focus on Web3 technologies, this role requires significant experience in automation and a collaborative approach to improving product quality. The candidate can expect a competitive salary between $134,000 and $167,000, with opportunities for professional growth in a cutting-edge technology setting.

Benefits

Competitive salary range

Remote-first role with flexibility

Opportunity to work with a global team

Qualifications

• 5+ years of professional experience in software QA/Test engineering.
• Hands-on experience with UI automation frameworks.
• Experience testing Web3 and blockchain products.

Responsibilities

• Design, develop, and maintain functional and regression tests.
• Build automation frameworks for Web, Mobile, and APIs.
• Collaborate with development teams to maintain automation frameworks.

Skills

Test automation frameworks with Typescript/JavaScript

UI automation frameworks (Selenium, WebdriverIO, Cucumber, Playwright)

CI/CD processes (GitHub Actions, Jenkins)

Problem-solving and time management skills

Education

B.S. in Computer Science or related field

Tools

Selenium

GitHub

Jira

TestRail

Job description

Overview

This position is posted by Jobgether on behalf of Ava Labs. We are currently looking for a Senior QA Engineer, Core Wallet in North America.

We are seeking a highly skilled and motivated Senior QA Engineer to join a fast-paced, innovative blockchain development team. In this role, you will design, build, and maintain end-to-end test frameworks to ensure the highest quality across web, mobile, and API applications. You will work autonomously to develop scalable automation frameworks, contribute to QA best practices, and collaborate with cross-functional teams to deliver secure, high-performing products. This is an opportunity to have a direct impact on the reliability, security, and performance of advanced Web3 applications while working in a remote, cutting-edge technology environment.

Responsibilities

• Design, develop, maintain, and execute functional, regression, integration, and end-to-end tests
• Build and enhance automation frameworks for Web, Mobile (iOS/Android), and APIs using tools such as Selenium, Playwright, Puppeteer, WebdriverIO, and JS API testing frameworks
• Establish scalable long-term QA testing strategies and best practices
• Perform both automated and manual testing to ensure high security and quality standards for institutional-grade products
• Work independently to prototype and implement QA frameworks from scratch
• Collaborate with development teams to maintain automation frameworks and improve testing efficiency
• Leverage AI technologies to enhance testing processes and velocity
• Define, improve, and implement QA standard methodologies across projects

Qualifications

• B.S. in Computer Science or related field, or equivalent experience
• 5+ years of professional experience in software QA/Test engineering
• Strong experience developing test automation frameworks with Typescript/JavaScript
• Hands-on experience with UI automation frameworks such as Selenium, WebdriverIO, Cucumber, and Playwright
• Familiarity with version control, defect tracking, and test management tools (GitHub, Jira, TestRail)
• Experience designing test strategies, test plans, and test cases
• Hands-on experience with CI/CD processes and automation suites (GitHub Actions, Jenkins)
• Strong problem-solving, planning, prioritization, and time management skills
• Ability to work autonomously with minimal supervision
• Experience testing Web3 and blockchain products
• Ability to pass a background check
• Nice-to-have: Performance or load testing experience, additional JavaScript expertise

Benefits

• Competitive salary range of $134,000 to $167,000 (final offer may vary based on experience and location)
• Remote-first role with flexibility, with occasional office presence for NYC metro candidates (2-3x/week)
• Opportunity to work with a world-class, global team in blockchain and Web3 technologies
• Hands-on experience with cutting-edge Web3 applications and high-impact projects
• Professional growth in a collaborative and innovative environment
• Exposure to advanced automation and AI-enhanced QA tools

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching. When you apply, your profile goes through our AI-powered screening process designed to identify top talent efficiently and fairly.

Our AI evaluates your CV and LinkedIn profile thoroughly, analyzing your skills, experience and achievements. It compares your profile to the job’s core requirements and past success factors to determine your match score. Based on this analysis, we automatically shortlist the 3 candidates with the highest match to the role. When necessary, our human team may perform an additional manual review to ensure no strong profile is missed.

The process is transparent, skills-based, and free of bias — focusing solely on your fit for the role. Once the shortlist is completed, we share it directly with the company that owns the job opening. The final decision and next steps (such as interviews or additional assessments) are then made by their internal hiring team.

Thank you for your interest!

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