We are seeking a Lead SDET (Software Development Engineer in Test ) to provide end-to-end technical governance across all QA layers — frontend, middleware, and backend — for a complex, multi-layered onboarding platform. This role owns the architecture of API contract testing and the data modeling of complex entity relationships (e.g., hierarchical/parent-child style structures), while ensuring that quality assumptions made at one layer (such as client-side validation) are independently verified at every downstream layer rather than trusted at face value. The ideal candidate combines strong technical leadership with the ability to set and enforce delivery governance across cross-functional teams.
Title: Lead SDET
Rate: $17/hr
Start Date: 19th October
Duration: 4 Months
Commitment: 22 Hours per Week
Location: India (Remote)
Job Type: Contractual (with the possibility of a Full-time employment extension based on performance and project needs)
#L1-CC1
Why join Welo Data?
✨ Limitless Flexibility: Work on projects that fit your schedule while collaborating with a global leader in AI data services and localization.
🌱 Limitless Growth: Apply your skills, access diverse content types, develop through structured learning, and explore career paths that can lead to permanent roles.
🌍 Limitless Support: Be part of a global community with real-time assistance from our Community Experience team.
How to Apply?
Apply now by answering a few quick questions to join our database and become part of our growing community.
We can’t wait to meet you!
Welo Data, part of Welocalize, is a global AI data company with 500,000+ contributors delivering high-quality, ethical data to train the world’s most advanced AI systems. We’re building smarter, more human AI with a diverse community in 100+ countries.
At Welo Data, Limitless AI. Limitless You. isn’t just a slogan—it’s our promise. We build smarter AI through the power of human contribution, offering limitless opportunities for our global community to grow, contribute, and work on their terms.

Welo Global is a leader in multilingual AI, technology, and content solutions serving over 2,000 clients in 300 languages. The company combines globally scaled multilingual infrastructure, including a network of over 500,000 linguists and domain experts, with advanced NLP, computational linguistics, and best-in-class compliance backed by seven ISO certifications. Welo Global’s five brands—Welocalize (multilingual content and localization solutions for localization and technology teams), Adapt (multilingual performance-led digital marketing agency), Park IP (patent translation, foreign filing, and legal solutions for law firms and corporate legal teams), Welo Life Sciences (multilingual content solutions for drug and medical device development for pharmaceutical, clinical contract research, and medical device organizations), and Welo Data (multilingual data generation, evaluation, and human data infrastructure for AI systems)—serve distinct customer segments with purpose-built expertise, fit-for-purpose solutions, and supporting technology. weloglobal.com