
We are seeking a highly experienced Kotlin Software Engineering professional to serve as a Subject Matter Expert (SME) on advanced software development and AI benchmarking projects. This role is pivotal in designing, documenting, and validating Kotlin-based tasks and functionalities that test and refine the coding capabilities of large language models (LLMs) — particularly within Android development environments.
Your work will define both the technical standard and the functional scaffolding of real-world coding benchmarks, ensuring all tasks meet the highest levels of authenticity, precision, and reproducibility. You will help assemble datasets and functional frameworks that mirror the complexity and reasoning required in professional Android engineering.
Domain
Example SME Responsibilities
Android Functionality Design
Define and document functional benchmarks such as ViewModel lifecycle management, asynchronous data fetching, and Compose state handling.
Benchmark Dataset Creation
Source and curate Kotlin tasks that measure model comprehension and code accuracy, ensuring each is verifiable and complete.
Code Review & QA
Apply QA rubrics to assess correctness, structure, and maintainability of Kotlin-based benchmark submissions.
Talent Calibration
Develop and refine role definitions and test exercises for Kotlin annotators or contributors.
Documentation Ownership
Author clear, maintainable task documentation describing functionality, context, and test criteria for model evaluation.
Continuous Improvement
Identify recurring code or comprehension defects and propose updated documentation or templates to address them.
This Kotlin SME role merges engineering excellence, documentation rigor, and benchmark development expertise. You will help shape the foundation for evaluating AI models in real-world Android engineering, defining how Kotlin is used to measure and guide the next generation of intelligent software systems.
We offer a pay range of $25-to- $65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and high‑speed internet; company‑sponsored benefits such as health insurance and PTO do not apply.
Job title: Kotlin Expert (SME)
Employment type: Contract
Workplace type: Remote
Seniority level: Senior Level

Invisible Technologies makes AI work.
Our platform cleans, labels, and structures company data so it’s ready for AI. It adapts models to each business and adds human expertise when needed — the same approach used to improve models for over 80% of the world’s top AI companies, including Microsoft, AWS, and Cohere.
Our successes span industries — from supply chain automation for Swiss Gear, to AI-enabled naval simulations with SAIC, and validating NBA draft picks for the Charlotte Hornets.
Invisible, profitable for over half a decade, reached $134m in revenue and ranked #2 fastest-growing AI company in 2024, and recently raised $100M to advance its platform technology.