ML Engineer

Job not on LinkedIn

November 15

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Weekday (YC W21)

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Human Resources • SaaS • Recruitment

Weekday is a modern recruitment platform that combines AI technologies with a vast database of potential candidates, aiming to streamline the hiring process for companies in India. They offer various services, including a proactive outreach approach that helps employers connect with top talent, as well as tools for candidates to easily apply for jobs. Weekday's emphasis on candidate engagement through multiple channels, including email, WhatsApp, and phone calls, sets it apart in the competitive landscape of recruitment agencies.

11 - 50 employees

Founded 2021

☁️ SaaS

🎯 Recruiter

📋 Description

• Build **reinforcement learning environments and sandboxes** used by major AI labs to train advanced coding agents. • Onboard to a new codebase every 1–1.5 months, develop a deep understanding of it, and construct RL tasks on top of it. • Design engineering challenges, create mocks, write robust tests, and manipulate infrastructure components as needed to build realistic RL scenarios. • Develop tools, utilities, and agent-support systems that make environment creation faster and more efficient for the entire engineering team. • Work across full-stack components where required, while focusing heavily on backend logic and environment behavior.

🎯 Requirements

• Experience working in small, high-ownership environments (e.g., early-stage startup, founding engineer, CTO). • Deep expertise in at least one core stack: **TypeScript / Python / Go / Java** — with a strong preference for backend experience and familiarity with TypeScript. • Background as a **product engineer, platform engineer, or ML engineer** (not infrastructure-only or data-science-only profiles). • Ability to understand, reason about, and solve difficult technical problems independently, while also effectively using tools like Cursor to accelerate development. • Strong engineering fundamentals and comfort navigating large, unfamiliar codebases quickly.