> job detail
V
🧪Data Scientist
Data Scientist
Valtech · Bengaluru
// classified as
Data Scientist (Modeling, experiments, research.)
posted
4d ago
location
Bengaluru
languages
python, swift
tools
aws, azure, bigquery
> stack
pythonswiftawsazurebigquerydeltadockerkafkakubernetesmlflowneo4jredshiftsagemakersnowflakefastapiflasklightgbmnumpypandaspysparkpytorchtensorflowxgboost
> education
master
> description
<p><span class="TextRun SCXW246265904 BCX0" lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW246265904 BCX0"><iframe style="display: table; margin-left: auto; margin-right: auto;" src="https://www.youtube.com/embed/-v7FHfKa70g" width="560" height="314"></iframe></span></span></p>
<p> </p>
<p><span class="TextRun SCXW246265904 BCX0" lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW246265904 BCX0">Why Valtech? </span><span class="NormalTextRun SCXW246265904 BCX0">We’re</span> <span class="NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW246265904 BCX0">the</span> <span class="NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW246265904 BCX0">experience</span><span class="NormalTextRun SCXW246265904 BCX0"> innovation company </span><span class="NormalTextRun SCXW246265904 BCX0">- </span><span class="NormalTextRun CommentStart SCXW246265904 BCX0">a</span><span class="NormalTextRun SCXW246265904 BCX0"> trusted partner</span><span class="NormalTextRun SCXW246265904 BCX0"> to the world’s most recognized brands. To our people we offer </span><span class="NormalTextRun SCXW246265904 BCX0">growth opportunities, </span><span class="NormalTextRun SCXW246265904 BCX0">a </span><span class="NormalTextRun ContextualSpellingAndGrammarErrorV2Themed SCXW246265904 BCX0">values</span><span class="NormalTextRun SCXW246265904 BCX0">-driven culture, </span><span class="NormalTextRun SCXW246265904 BCX0">international </span><span class="NormalTextRun SCXW246265904 BCX0">careers</span><span class="NormalTextRun SCXW246265904 BCX0"> and the chance to shape the future of experience.</span></span><span class="EOP CommentStart SCXW246265904 BCX0" data-ccp-props="{}"> </span></p>
<h3><strong><span data-contrast="auto">The opportunity</span></strong></h3>
<p><span data-contrast="auto">At Valtech, you’ll find an environment designed for continuous learning, meaningful impact, and professional growth. Whether you're pioneering new digital solutions, challenging conventional thinking or building the next generation of customer experiences, your work will help transform industries.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto">We are proud of:</span><span data-ccp-props="{}"> </span></p>
<ul>
<li><a href="https://www.valtech.com/work/?utm_source=greenhouse&utm_medium=website&utm_campaign=gl_ta_talent-acquisition_aw_ba_job_description_template&utm_term=website-applicants&utm_content=job-applicants_week192025" target="_blank"><span data-contrast="auto"><span data-ccp-charstyle="Hyperlink">The work we do and the innovation we drive</span></span></a><span data-ccp-props="{}"> </span></li>
<li><a href="https://www.valtech.com/career/our-values/?utm_source=greenhouse&utm_medium=website&utm_campaign=gl_ta_talent-acquisition_aw_ba_job_description_template&utm_term=website-applicants&utm_content=job-applicants_week192025" target="_blank"><span data-contrast="auto"><span data-ccp-charstyle="Hyperlink">Our values of share, care </span><span data-ccp-charstyle="Hyperlink">a</span><span data-ccp-charstyle="Hyperlink">nd dare</span></span></a><span data-ccp-props="{}"> </span></li>
<li><a href="https://www.valtech.com/valtech-as-workplace/?utm_source=greenhouse&utm_medium=website&utm_campaign=gl_ta_talent-acquisition_aw_ba_job_description_template&utm_term=website-applicants&utm_content=job-applicants_week192025" target="_blank"><span data-contrast="auto"><span data-ccp-charstyle="Hyperlink">A workplace culture that fosters creativity, diversity and autonomy</span></span></a><span data-ccp-props="{}"> </span></li>
<li><a href="https://www.valtech.com/about/offices/?utm_source=greenhouse&utm_medium=website&utm_campaign=gl_ta_talent-acquisition_aw_ba_job_description_template&utm_term=website-applicants&utm_content=job-applicants_week192025" target="_blank"><span data-contrast="auto"><span data-ccp-charstyle="Hyperlink">Our borderless, global framework, </span><span data-ccp-charstyle="Hyperlink">which enables </span><span data-ccp-charstyle="Hyperlink">seamless collaboration</span></span></a><span data-ccp-props="{}"> </span></li>
</ul>
<p><span data-ccp-props="{}"> </span></p>
<h3><strong><span data-contrast="auto">The role </span></strong><span data-ccp-props="{}"> </span></h3>
<p><span data-contrast="auto">As a <strong>Data Scientist</strong>, you are passionate about experience innovation and eager to push the boundaries of what’s possible. You bring<strong> 4+YEARS</strong> of experience, a growth mindset and a drive to make a lasting impact.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto">You will thrive in this role if you are:</span><span data-ccp-props="{}"> </span></p>
<ul>
<li><span data-contrast="auto">A curious problem solver who challenges the status quo</span><span data-ccp-props="{}"> </span></li>
<li><span data-contrast="auto">A collaborator who values teamwork and knowledge-sharing</span><span data-ccp-props="{}"> </span></li>
<li><span data-contrast="auto">Excited by the intersection of technology, creativity and data</span><span data-ccp-props="{}"> </span></li>
<li><span data-contrast="auto">Experienced in Agile methodologies and consulting (a plus)</span><span data-ccp-props="{}"> </span></li>
</ul>
<p><strong><span data-contrast="auto">Role responsibilities</span></strong></p>
<p><strong> </strong><strong>Fraud & Banking Analytics </strong></p>
<ul>
<li><strong> </strong>Develop, validate, and maintain supervised and unsupervised models for fraud detection, credit risk scoring, AML typology identification, and transaction anomaly detection.</li>
<li> Build real-time and near-real-time scoring pipelines integrating with banking event streams (Kafka, Pub/Sub) and decision engines. • Perform deep exploratory analysis of transactional data, customer behavioural signals, merchant data, and graph-based relationship networks to surface fraud patterns.</li>
<li> Collaborate with compliance, risk, and product teams to translate regulatory requirements (RBI guidelines, PCI-DSS, Basel III) into model design constraints.</li>
<li> Construct and maintain feature stores covering entity-level aggregations, velocity features, device/network signals, and geospatial behavioural attributes.</li>
<li> Champion model interpretability using SHAP, LIME, and counterfactual explanations to satisfy audit and regulatory scrutiny. </li>
</ul>
<p><strong>Generative AI & Deep Learning </strong></p>
<ul>
<li>Design and fine-tune LLMs (Gemini, GPT-4o, Llama, Mistral) on proprietary banking corpora using PEFT and LoRA for tasks such as SAR narrative generation, dispute summarisation, and customer communication.</li>
<li> Architect Retrieval-Augmented Generation (RAG) systems grounded in internal knowledge bases — policy documents, fraud rulebooks, regulatory circulars — with vector stores (Pinecone, Milvus, Weaviate, ChromaDB).</li>
<li> Apply Computer Vision and NLP to multimodal data pipelines (cheque images, KYC documents, audio call transcripts) for identity verification and fraud triage. • Develop generative models (GANs, VAEs, Diffusion) for synthetic data augmentation to address class imbalance in fraud datasets while meeting data-privacy obligations.</li>
<li> Build prompt engineering frameworks using LangChain and LlamaIndex; implement chain-of-thought and agentic reasoning for complex investigative workflows. </li>
</ul>
<p><strong>Engineering & Delivery</strong></p>
<ul>
<li>Write production-ready Python code adhering to Valtech engineering standards — unit-tested, type annotated, and reviewed.</li>
<li>Operationalise models with MLOps tooling (MLflow, Kubeflow, Vertex AI Pipelines) covering versioning, A/B experimentation, drift monitoring, and automated retraining. </li>
<li> Expose model outputs via FastAPI or Flask microservices integrated with banking middleware and case management platforms.</li>
<li> Work within Agile delivery squads, participate in sprint planning, demo sessions, and client-facing workshops.</li>
</ul>
<p><strong>Governance & Stakeholder Engagement </strong></p>
<ul>
<li>Enforce Responsible AI principles — bias audits, fairness metrics, model cards, and NeMo Guardrails for deployed LLMs.</li>
<li>Translate complex model behaviour into clear narratives for non-technical stakeholders including compliance officers, fraud investigators, and C-suite sponsors. </li>
</ul>
<h3><strong><span data-contrast="auto">Must have qualifications</span></strong></h3>
<p><strong>Fraud & Banking Domain </strong></p>
<ul>
<li>Proven track record building fraud models (card-not-present, account takeover, synthetic identity, first-party fraud, money-mule networks).</li>
<li>Experience with graph analytics (PyG, DGL, Neo4j) for network-based fraud ring detection.</li>
<li>Familiarity with banking data schemas: ISO 8583, SWIFT MT messages, core-banking extracts, and bureau data (CIBIL/Experian).</li>
<li>Exposure to regulatory frameworks: RBI Master Directions on Fraud, FATF AML/CFT guidelines, PCI-DSS Level 1 environments. </li>
</ul>
<p><strong>Core AI / ML </strong></p>
<ul>
<li>Expertise in supervised learning (XGBoost, LightGBM, neural networks) and unsupervised methods (isolation forest, autoencoders, DBSCAN) for anomaly detection.</li>
<li> Strong foundations in Computer Vision and NLP; proven experience with multimodal pipelines combining images, text, and structured tabular data.</li>
<li> Proficiency in PyTorch or TensorFlow for model development and custom training loops.</li>
</ul>
<p><strong>Generative AI Stack</strong></p>
<ul>
<li>Hands-on with Gemini, OpenAI GPT-4x, and open-source LLMs (Llama 3, Mistral, Phi-3).</li>
<li> Model fine-tuning using PEFT, LoRA, and QLoRA on domain-specific corpora.</li>
<li> RAG architecture design: chunking strategies, hybrid retrieval (BM25 + dense), re-ranking, and query routing.</li>
<li> Vector database proficiency: Pinecone, Milvus, Weaviate, or ChromaDB for semantic search and knowledge grounding.</li>
<li> Advanced prompt engineering: chain-of-thought, few-shot, structured output, and tool-calling patterns using LangChain or LlamaIndex<strong>. </strong></li>
</ul>
<p><strong>Engineering </strong></p>
<ul>
<li>Python (primary): pandas, NumPy, scikit-learn, PySpark; clean, production-ready, PEP-8 compliant code with test coverage.</li>
<li> Cloud: hands-on experience with GCP (Vertex AI, BigQuery, Dataflow, Cloud Run), AWS (SageMaker, Redshift), or Azure (ML Studio, Synapse).</li>
<li> SQL proficiency for complex analytical queries across relational and columnar stores (BigQuery, Snowflake, Redshift).</li>
<li> MLOps fundamentals: experiment tracking (MLflow), containerisation (Docker, Kubernetes), CI/CD pipelines for model deployment.</li>
</ul>
<h3><strong><span data-contrast="auto">Nice to have qualifications </span></strong><span data-ccp-props="{}"> </span></h3>
<ul>
<li><span data-contrast="auto">MLOps tooling: MLflow, Kubeflow, Vertex AI Pipelines for end-to-end model lifecycle management.</span></li>
<li><span data-contrast="auto">Responsible AI: bias detection frameworks, model fairness metrics, NeMo Guardrails for safe LLM deployment. </span></li>
<li><span data-contrast="auto">API Development: wrapping models in production REST APIs using FastAPI or Flask. </span></li>
<li><span data-contrast="auto">Reinforcement Learning from Human Feedback (RLHF) and self-supervised learning approaches. </span></li>
<li><span data-contrast="auto">Experience with emerging GenAI architectures: multi-agent systems, mixture-of-experts, speculative decoding.</span></li>
<li><span data-contrast="auto">Databricks (Unity Catalog, Delta Live Tables, MLflow) for large-scale feature engineering and model serving.</span></li>
<li><span data-contrast="auto">Exposure to open-banking APIs and real-time payment rails (UPI, IMPS, RTGS) from a data perspective. </span></li>
</ul>
<p><strong><span class="TextRun MacChromeBold SCXW105898609 BCX0" lang="EN-US" data-contrast="auto"><span class="NormalTextRun SCXW105898609 BCX0">If you do not meet all the listed qualifications or have gaps in your experience, we still encourage you to apply. At Valtech, we recognize that talent comes in many forms, and we value diverse perspectives and a willingness to learn.</span></span><span class="EOP SCXW105898609 BCX0" data-ccp-props="{}"> </span></strong></p>
<h3><strong><span data-contrast="auto">Commitment to reaching all kinds of people</span></strong><span data-ccp-props="{}"> </span></h3>
<p><span data-contrast="auto">We design experiences that work for all kinds of people - and that starts with our own teams. At Valtech, we’re intentional about building an inclusive culture where everyone feels supported to grow, thrive and achieve their goals. No matter your background, you belong here. </span><a href="https://www.valtech.com/about/diversity-inclusion/" target="_blank"><span data-contrast="none"><span data-ccp-charstyle="Hyperlink">Explore our Diversity & Inclusion site</span></span></a><span data-contrast="auto"> to see how we’re creating a more equitable Valtech for all.</span><span data-ccp-props="{}"> </span></p>
<h3> </h3>
<h3><strong><span data-contrast="auto">The benefits </span></strong><span data-ccp-props="{}"> </span></h3>
<p><span data-ccp-props="{}">This is a <strong>Full-Time </strong>position based in <strong>Bengaluru</strong> </span></p>
<p><span data-contrast="auto">Beyond a competitive compensation package, we offer:</span><span data-ccp-props="{}"> </span></p>
<ul>
<li><span data-contrast="auto">Flexibility, with remote and hybrid work options (country-dependent)</span><span data-ccp-props="{}"> </span></li>
<li><span data-contrast="auto">Career advancement, with international mobility and professional development programs</span><span data-ccp-props="{}"> </span></li>
<li><span data-contrast="auto">Learning and development, with access to cutting-edge tools, training and industry experts</span><span data-ccp-props="{}"> </span></li>
</ul>
<p><span data-contrast="auto">Our benefits are tailored to each location. Your Talent Partner will provide full details during the hiring process.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto"> </span> <strong><span data-contrast="auto">Your application process</span></strong></p>
<p><span data-contrast="auto">Once you apply, our Talent Acquisition team will review your application. Your CV should cover key information on relevant experiences and expertise. We do not require information such as age, gender, marital status, or a headshot in your application. We review all candidates based on skills, experience, and potential.</span></p>
<p><span data-contrast="auto">⚠️ Beware of recruitment fraud! Only engage with official Valtech email addresses ending in <strong>@valtech.com</strong>.</span></p>
<p><span data-contrast="auto">We are committed to inclusion and accessibility. If you need reasonable accommodations during the interview process, please either indicate it in your application or let your Talent Partner know.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto"> </span> <strong><span data-contrast="auto">About Valtech</span></strong></p>
<p><span data-contrast="auto">Valtech is the experience innovation company that exists to unlock a better way to experience the world. By blending crafts, categories, and cultures, we help brands unlock new value in an increasingly digital world.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto">At the intersection of data, AI, creativity, and technology, we drive transformation for leading organizations, including L’Oréal, Mars, Audi, P&G, Volkswagen Dolby, and more.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto">At Valtech, we don’t just talk about transformation. We make it happen. Our people are the heart of our success, and we foster a workplace where everyone has the support to thrive, grow and innovate.</span><span data-ccp-props="{}"> </span></p>
<p><span data-contrast="auto">Are you ready to create what’s next? Join us.</span></p>