Senior Data Scientist

Ciklum India; Chennai District; On-site; INR 2,800,000 - 3,800,000; Full time

Benefits offered by this job

Medical Insurance

Mental health support

Financial & legal consultations

Udemy access

Job summary

Ciklum is hiring a Senior Data Scientist to own core analytical models in India. You will dive into algorithms written in R, driving statistical analysis, optimizing performance, and architecting new predictive models for business needs.

You will collaborate with data engineers to deploy models, mentor junior teammates, and work across banking/finance domain opportunities. A strong background in statistics and programming is essential.

Qualifications

• Master's or PhD in statistics/math/computer science/data science
• 5+ years hands‑on data science experience
• Expert in R with tidyverse and data.table
• Strong applied statistics knowledge (hypothesis testing, regressions, time-series)
• Auditing and improving existing code with measurable gains
• Excellent communication to explain complex concepts to executives

Responsibilities

• Own and reverse engineer existing statistical models written in R
• Conduct rigorous statistical testing to improve model performance
• Design scalable solutions and modernize functionality
• Develop new analytical features and predictive models
• Refactor R code into production-ready frameworks and enforce best practices
• Collaborate with Data Engineering to deploy models and translate results
• Mentor junior data scientists and analysts

Skills

R programming

tidyverse

data.table

Statistical modeling

Time-series analysis

Bayesian methods

Communication

Education

Master's or Ph.D. in Statistics/Applied Mathematics/CS/Data Science

Tools

Docker

Shiny

Plumber

Python

SQL

AWS

Job description

Job Description

Ciklum is looking for a Senior Data Scientist to join our team full-time in India. We are a custom product engineering company that supports both multinational organizations and scaling startups to solve their most complex business challenges. With a global team of over 4,000 highly skilled developers, consultants, analysts and product owners, we engineer technology that redefines industries and shapes the way people live.

About The Role

We are looking for a highly skilled Senior Data Scientist to take ownership of our core analytical models. In this pivotal role, you will dive deeply into our existing suite of algorithms written in R, conducting rigorous statistical analysis to understand, validate, and optimize their performance. You won't just be maintaining legacy code; you will be the driving force behind enhancing our current methodologies and architecting brand-new features and predictive models that solve complex business challenges.

Responsibilities

• Algorithm Ownership & Reverse Engineering: Analyze, deconstruct, and thoroughly map out complex existing statistical models and algorithms written in R
• Rigorous Statistical Analysis: Conduct deep-dive statistical testing on current models to identify areas for performance improvement, accuracy optimization, and efficiency gains
• Continuous Enhancement: Design and implement robust solutions to modernize and enhance existing functionality, ensuring our models scale effectively with growing data
• Feature Engineering & Development: Conceptualize, build, and deploy new analytical features and models from scratch to support emerging product and business needs
• Production & Code Quality: Refactor and upgrade existing R code into robust, production-ready frameworks. Champion best practices for version control, code documentation, and automated testing
• Cross-Functional Collaboration: Partner with Data Engineering to streamline model deployment and translate complex statistical outcomes into actionable insights for non- technical stakeholders
• Mentorship: Guide and mentor junior data scientists and analysts, fostering a culture of technical excellence and continuous learning

Requirements

• Education: Master's or Ph.D. in Statistics, Applied Mathematics, Computer Science, Data Science, or a closely related quantitative discipline
• Experience: 5+ years of hands-on professional experience in data science, statistical modeling, or quantitative research
• Technical Mastery in R: Expert-level proficiency in R programming. You should be highly comfortable with the tidyverse, data.table, and various advanced statistical/modeling packages
• Statistical Depth: Deep practical knowledge of applied statistics (e.g., hypothesis testing, linear/logistic regression, time-series analysis, mixed-effects models, or Bayesian methods)
• Analytical Problem-Solving: Proven track record of auditing existing codebases, identifying bottlenecks, and successfully implementing measurable algorithmic enhancements
• Communication: Exceptional ability to document complex algorithms clearly and explain highly technical concepts to executive leadership

Desirable

• Experience with building APIs in R (e.g., plumber) or developing interactive dashboards (e.g., Shiny)
• Familiarity with containerizing R applications (Docker) and deploying models in cloud environments (AWS, GCP, Azure)
• Working knowledge of Python (pandas, scikit-learn) or SQL to effectively collaborate with broader engineering teams
• Domain expertise in Banking or Financial Services

What’s in it for you?

• Strong community: Work alongside top professionals in a friendly, open-door environment
• Growth focus: Take on large-scale projects with a global impact and expand your expertise
• Tailored learning: Boost your skills with internal events (meetups, conferences, workshops), Udemy access, language courses, and company-paid certifications
• Endless opportunities: Explore diverse domains through internal mobility, finding the best fit to gain hands-on experience with cutting-edge technologies
• Care: We’ve got you covered with company-paid medical insurance, mental health support, and financial & legal consultations

About Us

At Ciklum, we are always exploring innovations, empowering each other to achieve more, and engineering solutions that matter. With us, you’ll work with cutting-edge technologies, contribute to impactful projects, and be part of a One Team culture that values collaboration and progress. India is a strategic innovation hub for Ciklum, with growing teams in Chennai and Pune leading advancements in EdgeTech, AR/VR, IoT, and beyond. Join us to collaborate on game-changing solutions and take your career to the next level.

Explore, empower, engineer with Ciklum!