Lead ML Engineer

Lead ML Engineer – Ad. Tech / User Acquisition Experience: 10+ Years Role: Lead Individual Contributor (Hands-on) Working Hours: Flexible | Mandatory presence from 6 PM – 12 AM IST Work Mode: Permanent Work From Home Masscomcorp is looking for a Lead ML Engineer with strong hands-on experience in Machine Learning and Ad.

Tech / User Acquisition / Gaming / Marketing Analytics . This is a hands-on Lead IC role , where you will own ML initiatives end-to-end while providing technical direction and mentoring to the team.

Key Responsibilities

Build and deploy ML models for user acquisition, targeting, campaign optimization, bidding, conversion, LTV/CLV and monetization . Analyze large datasets using Python and SQL to identify opportunities and improve campaign performance. Develop predictive models using XGBoost, LightGBM, Logistic Regression, Random Forest or similar techniques.

Design and evaluate A/B tests, experimentation frameworks and statistical models . Work with Ad. Tech platforms, ad networks and MMPs such as Apps. Flyer / Adjust for attribution and campaign measurement. Own ML projects from problem definition to production , including model validation and monitoring. Provide technical leadership, code/model reviews and mentoring while remaining hands-on.

Collaborate with Product, Engineering, Marketing/UA and Business teams to translate business problems into ML solutions.

What We're Looking For

10+ years of experience in ML / Data Science / ML Engineering . Strong hands-on experience with Python, SQL and traditional/predictive ML . Strong experience with feature engineering, model evaluation, statistics and A/B testing . Experience in Ad. Tech, User Acquisition, Mobile Gaming, Performance Marketing, Marketing/Customer Analytics, Growth or E-commerce .

Hands-on experience with targeting, propensity, recommendation, personalization, campaign optimization, LTV/CLV, churn/retention or monetization . Strong ownership and ability to provide technical leadership while continuing to work as an IC . GenAI/LLM/RAG/Agentic AI exposure is a plus, but traditional ML is the core requirement.

Understanding and/or experience of Agentic + LLM ( Good to have) Apache Spark/Py. Spark and AWS experience is a plus. Why Masscom Permanent Work From Home Flexible working hours 5-day working week Generous PTO, vacation and holidays This is a Lead IC role — we are looking for someone who can lead technically, own projects, mentor others, and still be deeply hands-on with ML.