Testlio
Testlio

Principal Software Engineer (100% remote)

April 21, 2025
Full-time
Remote · Pakistan
Mid-Senior level
Full-stack Developer
Apply now

Testlio is a leading quality management company. Its unique approach combines humans and machines to help digital innovators assure quality products at scale. On 600K+ real devices. In 100+ languages. With 800+ payment methods. The company is 100% remote, with people in 150+ countries. It is female-founded; 46% of full-time people are women. Clients include Amazon, athenahealth, Match Group, Microsoft, the NBA, Netflix, PayPal, SAP, Uber, Wayfair, and many more. To learn more, visit www.testlio.com

We are hiring a Principle Software Engineer to help us deliver solutions that harness data & the latest AI advancements to generate measurable business impacts, ensuring our leadership in quality software testing services. Learn more about the Testlio Platform team here.

To accomplish this, we are seeking a distinguished engineer who can showcase their significant experience in enterprise architecture & full-stack solution engineering. If you can confidently tick one or more of these boxes, we’d love to hear from you:

  • I hold a Solutions Architect certification (such as AWS Certified Solutions Architect Professional - CSAP)
  • I have a public track record of my contributions and coding expertise, featuring significant contributions to prominent open-source projects.
  • I’ve held an Architect role in a leading tech company (FAANG-level), demonstrating my ability to operate at the highest industry levels.
  • I have played a pivotal technical role in a startup, leading it from inception to a successful product launch, essentially acting as the lead technical powerhouse of the team.

Why you will love this job

  • Shape the future of testing with AI: Be at the forefront of innovation, building solutions that harness the power of AI to automate tasks, generate valuable insights, and drive testing efficiency.
  • Make a tangible impact: Your work directly influences the success of our clients and the quality of their digital products. See your contributions translated into real-world improvements that benefit millions of users.

What would your day look like?

  • Lead architectural roadmaps, technical investigations, prototyping and drive technical decisions needed for impact. Provide quality control for Architectural Decision documents.
  • Build and implement performant, scalable, and quality products, in an iterative approach.
  • Advance AI-augmented software engineering practices by incorporating productivity-boosting GenAI automation across the software development lifecycle.
  • Define & advocate quality standards for code, coaching your fellow engineers & constantly raising the bar for quality.
  • Work closely with designers and business stakeholders to bring the best solutions to end users.
  • Lead debugging and root cause analysis of complex problems, and offer solutions.
  • Work in a team environment: contribute to team tasks and goals; follow team processes (Scrum) and rituals.
  • Help and mentor other team members, proactively share and document knowledge.

What do you need to succeed?

Technical Skills

  • A university degree in Computer Science, Software Engineering, or equivalent.
  • 10 - 15 years of full-stack coding experience, building modern cloud-native applications.
  • Strong affinity with our tech stack of React, TypeScript, NodeJS, GraphQL, PHP, MySQL, AWS, and Kafka.
  • In-depth knowledge of core browser concepts and responsive web design.
  • Practical knowledge of modern API architecture, microservices, and event-driven design.
  • Experience in writing automated tests is a strong plus.
  • Proven track record of taking ownership, conducting technical design, and successfully delivering results.
  • AI/ML experience is a strong plus.
  • Mobile Development: Experience in developing and optimizing mobile applications (whether using fully native frameworks for iOS/Android or cross-platform solutions such as React Native) is a plus.

Human Skills

  • Fluency in English, with excellent written and verbal communication skills.
  • Organized and thorough with a commitment to quality.
  • Results-oriented, with data-driven decision-making and a focus on delivering impactful outcomes.
  • Strong preference for a remote working environment.
  • A passion for staying current with the latest industry trends and technologies, and a drive to continuously improve and innovate.

Diversity and Inclusion

Testlio is an equal-opportunity employer deeply committed to creating an inclusive environment for people of all backgrounds and identities. We are female-founded and 46% of our team identifies as women. See the DEI section of our website for more information.