Senior Data Scientist - AdTech (6-month Contract)

Proximity Works; India; On-site; INR 2,500,000 - 3,500,000; Full time

Benefits offered by this job

Best-in-class salary

Proximity Talks

Continuous learning

High-impact work

Job summary

Proximity is seeking a highly skilled Senior Data Scientist to build, deploy, and optimize ML models at scale on AWS and big data platforms. You will work with Python, SQL, Spark, and ML frameworks, designing end-to-end experiments and owning production pipelines to deliver business impact.

Candidate should have 5+ years of hands-on data science experience, strong problem solving, and collaboration skills to work with cross-functional teams in a fast-paced environment.

Qualifications

• 5+ years of experience in data science or applied ML.
• Proficient in Python, SQL and ML libraries (Pandas, scikit-learn, TensorFlow, PyTorch).
• Experience deploying ML models to production and large-scale data processing.
• Experience with Databricks, Spark, Hadoop, and cloud platforms (AWS).
• Strong problem solving and cross-functional collaboration.

Responsibilities

• Design, build, deploy scalable ML models into production.
• Develop analytics and predictive models using Python, SQL, ML libraries.
• Leverage Spark, Databricks, Hadoop for large-scale data processing.
• Create workflows with Airflow and AWS EMR.
• Collaborate with engineering to integrate models into cloud apps on AWS.
• Optimize queries, storage, and data pipelines for efficiency.
• Perform end-to-end experiments from preprocessing to deployment.
• Operate with high ownership and drive data-driven initiatives.
• Stay updated with ML, big data, and cloud-native best practices.

Skills

Python

SQL

Machine Learning

Problem solving

Communication

Tools

Databricks

Airflow

AWS EMR

Hadoop

SageMaker

EC2

S3

TensorFlow

PyTorch

Scikit-learn

Spark

Pandas

Job description

We're seeking a highly skilled, execution-focused Senior Data Scientist with a minimum of 5 years of experience. This role demands hands‑on expertise in building, deploying, and optimizing machine learning models at scale, while working with big data technologies and modern cloud platforms. You will be responsible for driving data‑driven solutions from experimentation to production, leveraging advanced tools and frameworks across Python, SQL, Spark, and AWS. The role requires strong technical depth, problem‑solving ability, and ownership in delivering business impact through data science.

Responsibilities

• Design, build, and deploy scalable machine learning models into production systems
• Develop advanced analytics and predictive models using Python, SQL, and popular ML/DL frameworks (Pandas, Scikit-learn, TensorFlow, PyTorch)
• Leverage Databricks, Apache Spark, and Hadoop for large‑scale data processing and model training
• Implement workflows and pipelines using Airflow and AWS EMR for automation and orchestration
• Collaborate with engineering teams to integrate models into cloud‑based applications on AWS
• Optimize query performance, storage usage, and data pipelines for efficiency
• Conduct end‑to‑end experiments, including data preprocessing, feature engineering, model training, validation, and deployment
• Drive initiatives independently with high ownership and accountability
• Stay up to date with industry best practices in machine learning, big data, and cloud‑native deployments

Requirements

• Minimum 5 years of experience in Data Science or Applied Machine Learning
• Strong proficiency in Python, SQL, and ML libraries (Pandas, Scikit-learn, TensorFlow, PyTorch)
• Proven expertise in deploying ML models into production systems
• Experience with big data platforms (Hadoop, Spark) and distributed data processing
• Hands‑on experience with Databricks, Airflow, and AWS EMR
• Strong knowledge of AWS cloud services (S3, Lambda, SageMaker, EC2, etc.)
• Solid understanding of query optimization, storage systems, and data pipelines
• Excellent problem‑solving skills, with the ability to design scalable solutions
• Strong communication and collaboration skills to work in cross‑functional teams

Benefits

• Best‑in‑class salary: We hire strong talent and compensate accordingly
• Proximity Talks: Meet and learn from designers, engineers, product leaders, and AI practitioners
• Continuous learning: Work with a world‑class team and stay close to the latest in AI, engineering, and product development
• High‑impact work: Build AI‑first systems and products used at scale by global clients

About Us

Proximity is the trusted technology, design, and consulting partner for some of the biggest Sports, Media, and Entertainment companies in the world. We're headquartered in San Francisco and have offices in Palo Alto, Dubai, Mumbai, and Bangalore. Since 2019, Proximity has built high‑impact, scalable products used by millions of users every day. Today, we are a global team of engineers, designers, product managers, and experts solving complex problems and building cutting‑edge technology at scale.