Sr. Knowledge Graph (GT,GNN,GAT) PhD Expert at ContexQ pte Ltd · Remote only · 0 - 5 years · ₹20L - ₹40L / yr (ESOP available) · Remote only · Posted 11 Oct 2026

Company: ContexQ
Location: Singapore / India / Malaysia (Remote/Hybrid)
At ContexQ, we are fundamentally reshaping the emerging landscape of Contextual Decision Intelligence. We leverage cutting-edge composite AI, Vector Search, and advanced graph technology to resolve billions of entities continuously. By uncovering hidden relationships, we revolutionize how global enterprises handle fraud detection, financial crime (AML), risk management, and supply chain intelligence.
We are an ambitious, fast-moving startup taking on massive enterprise big data challenges, and we are looking for a Founding Knowledge Graph Scientist to push the boundaries of what is possible in semantic data resolution and network graph AI.
This is not a traditional corporate research role. We are looking for an elite AI researcher and practitioner with a PhD and the DNA of an entrepreneur—someone who can architect novel Graph Transformer architectures, develop cutting-edge explainable AI (XAI) models for fraud detection, and translate deep academic expertise into high-impact enterprise solutions. You will be at the forefront of designing the intelligence engine that protects global financial institutions from complex, coordinated financial crimes.
THE MISSION
As our Founding Knowledge Graph Scientist, you are the intellectual and technical force behind our core AI reasoning engine. You will bridge the gap between state-of-the-art academic research in graph neural networks and the practical, high-throughput demands of enterprise anti-money laundering (AML) and fraud detection systems.
Your ultimate metric is the accuracy, efficiency, and explainability of our graph-based AI models. You will architect proprietary knowledge graph structures, implement advanced Graph Transformer models (like FraudGT or similar architectures), and create the analytical "awe factor" that proves to C-suite banking executives that ContexQ can catch financial crime that legacy systems miss.
WHAT YOU WILL DO
• Architect the Graph: Design and optimize large-scale financial knowledge graphs that capture complex temporal, spatial, and transactional relationships across billions of nodes and edges to detect collusion and laundering behaviors.
• Pioneer AI Models: Develop, train, and deploy advanced Graph Neural Networks (GNNs) and Graph Transformers specifically tailored for highly imbalanced, large-scale financial data.
• Drive XAI in FinCrime: Champion model transparency by building explainable AI mechanisms that allow compliance officers to understand exactly why a transaction or entity was flagged, ensuring strict adherence to global banking regulations.
• Bridge Research & Product: Act as the crucial link between theoretical AI research and our core product roadmap. Publish findings, stay ahead of state-of-the-art fraud detection methodologies, and directly implement these breakthroughs into the ContexQ platform.
• Collaborate Across Teams: Work seamlessly with Data Engineering, MLOps, and Business Analysts to ensure your graph models are deployed efficiently, scale securely, and directly address the pain points of our enterprise clients.
WHO YOU ARE
• The Deep Expert: You hold a PhD in Computer Science, Artificial Intelligence, Machine Learning, Applied Mathematics, or a closely related field, with a heavy research focus on Knowledge Graphs, Graph Neural Networks, or Graph Transformers.
• Domain Specialized: You possess deep expertise (either academic or applied) in utilizing graph analytics for anomaly detection, specifically within the realms of Financial Crime, Fraud detection, or cybersecurity.
• A Proven Builder: You have a track record of translating complex AI theory into functional code (PyTorch, PyTorch Geometric, DGL). You are not just a theoretician; you can build, test, and optimize models for real-world deployment.
• A Master Communicator: You can distill complex mathematical concepts and graph topologies into clear, compelling narratives for both highly technical engineering teams and non-technical business stakeholders.
COMPENSATION & THE CONTEXQ UPSIDE
We are explicitly looking for top-tier research and engineering talent who wants to bet on themselves, act as true owners, and build foundational technology.
We structure compensation to heavily reward dedication, innovation, and long-term impact. In exchange for your deep expertise and technical leadership, we offer competitive compensation, significant early-stage foundational equity worth up to $1,000,000 USD over time, a high-impact remote-first culture, and a structure designed to directly align your wealth creation with the platform's enterprise valuation.
This role is designed for an AI pioneer who wants real skin in the game. If you are looking for a purely academic sandbox with no commercial pressure, this isn't for you. If you want the massive upside of building an enterprise AI juggernaut from the ground up and sharing directly in the value you create by stopping global financial crime, you belong at ContexQ.

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- 5+ years of experience building production AI or machine learning systems.
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🚨 Hiring – Data Scientist | Python + Agentic AI
💼 Experience: 5+ Years
Must Have:
• Strong Data Science experience
• Python
• Agentic AI / AI Agents
• Generative AI / LLMs
• RAG / Vector Databases
• LangChain / LangGraph or similar Agent Frameworks
• Machine Learning & NLP
Strong AI Engineer / Machine Learning Engineer profiles.
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Mandatory (Experience 1) – Must have minimum 3+ years of hands-on experience in Data Science, Machine Learning, Applied AI, NLP, Deep Learning, or Generative AI solutions.
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Mandatory (Experience 4) – Must have hands-on experience working on NLP, embeddings, semantic search, text classification, document understanding, recommendation systems, or similar AI/ML use cases.
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Mandatory (Experience 5) – Must have experience working with Large Language Models (LLMs) such as GPT, Llama, Mistral, Claude, Gemini, Phi, or similar foundation models.
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Mandatory (Experience 6) – Must have hands-on experience building or implementing RAG (Retrieval Augmented Generation) systems, vector search, knowledge retrieval, embeddings, chunking, indexing, or semantic retrieval solutions.
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PRINCIPAL AI ENGINEER @ METADOME.AI
Company Description
Metadome.ai builds frontier AI models that transform text, drawings, and CAD into production-ready, interactive 3D experiences. The company advances a full generative pipeline—text-to-CAD, 2D-to-3D
reconstruction, CAD completion and harmonization, and real-time interactive rendering—engineered for the precision required in the physical world. Its technology currently powers the modernization of
OEM aftersales for more than 30 automotive and heavy-equipment manufacturers worldwide, delivering accurate, scalable, and fast 3D solutions. Metadome.ai’s platform enables shoppable 3D parts, step-by-step repair animations, and a headless API that feeds consistent 3D assets into commerce, dealer, training, and service systems. The broader mission is to allow anyone to move from an idea, drawing, or specification to a production-grade 3D model and beyond in seconds.
Role Description
As a Principal AI Engineer — Generative CAD & 3D, you will lead the design, development, and deployment of advanced AI models that convert text, 2D drawings, and CAD files into engineering-grade 3D content. You will architect end-to-end generative pipelines, including
text-to-CAD, 2D-to-3D reconstruction, CAD completion, and real-time rendering, collaborating closely with product, design, and engineering teams to ship robust production systems. Day-to-day, you will experiment with novel neural network architectures, optimize model performance on large-scale CAD datasets, write high-quality production code, and guide the integration of AI services into customer-facing platforms. You will mentor other engineers, establish best practices for AI development, and contribute to technical strategy and roadmap. This is a full-time, hybrid role based in Bengaluru, with a mix of on-site collaboration and work-from-home flexibility.
Qualifications
- Strong foundation in Computer Science and Software Development, including data structures, algorithms, system design, and production-grade coding in languages such as Python, C++, or similar.
- Deep expertise in Neural Networks and Pattern Recognition, with hands-on experience designing, training, and deploying modern deep learning architectures for complex, high-dimensional data.
- Experience with Natural Language Processing (NLP), including working with text encoders, multimodal models, and integrating language understanding into generative workflows.
- Advanced degree (Master’s or PhD) in Computer Science, Electrical Engineering, Applied Mathematics, or a related field, or equivalent practical experience in AI/ML research and engineering.
- Background in 3D geometry, CAD, computer graphics, or related domains, with familiarity in 3D representations, mesh processing, and rendering pipelines.
Role: Python + Agentic AI Engineer
We are looking for an experienced Python + Agentic AI Engineer with strong expertise in developing AI-powered applications and autonomous agent-based solutions.
Key Skills / Requirements:
• Strong hands-on experience in Python
• Experience with Agentic AI / AI Agents
• Hands-on with LangChain / LangGraph or similar agent frameworks
• Experience with Generative AI and LLMs
• Strong understanding of RAG (Retrieval-Augmented Generation) and Vector Databases
• Experience developing REST APIs using FastAPI
• Knowledge of Multi-Agent Systems, Tool/Function Calling and Agent Workflows
• Experience integrating LLMs with enterprise applications/APIs
• Exposure to cloud-based AI services is an advantage
Preferred Profile: Python Developer / AI Engineer / Generative AI Engineer / Agentic AI Engineer with hands-on experience building production-ready AI solutions.
Title : Senior GenAI Engineer — RAG (Full-Stack)
Experience : 5+ years
Location : Remote
Work type : Chennai - Work from Office/ Remote – Other locations
Employment Type : Full Time
Notice Period : Immediate
Work Day :Mon to Fri
Key Responsibilities:
- RAG pipeline end to end: ingestion integration, hybrid retrieval with reranking, prompt/context strategy, citation resolution, refusal behavior
- Permission-aware retrieval: source ACL mapping (SharePoint/Entra, Confluence) to fail-closed retrieval filters; zero-leakage test suite partnership with QA
- Vector database design and operations (Milvus or pgvector): schema, metadata filters, sync, performance
- Full-stack product build: React/TypeScript chat and citation experience, Python/FastAPI services, REST APIs, SSO/OIDC integration, admin configuration UI
- Evaluation-driven development: retrieval precision, faithfulness, and citation-accuracy metrics as the daily working loop; A/B testing of retrieval and prompt variants
- Latency engineering to the 3–5s first-token / ~15s complete-answer targets at concurrency
Technical Skills:
- 5+ years software engineering with 2+ years building RAG/LLM applications in production — with real users and real quality metrics, not notebooks
- Deep retrieval craft: chunking strategy, embeddings, hybrid search, rerankers; you can explain why retrieval fails and how you measured the fix
- Genuine full-stack evidence: shipped React/TypeScript front ends AND Python back-end services in production; API design; OIDC/SAML integration
- Vector database production experience (Milvus, pgvector, Weaviate, or equivalent) including permission/metadata filtering
- Evaluation fluency: has built or operated a retrieval/answer quality harness with numeric thresholds
Strongly Preferred:
- Permission-aware/multi-tenant retrieval specifically; Microsoft Graph API; NIM/OpenAI-compatible serving endpoints; streaming UX; enterprise design systems; banking content domains
About Ampera:
Ampera Technologies, a purpose driven Digital IT Services with primary focus on supporting our client with their Data, AI / ML, Accessibility and other Digital IT needs. We also ensure that equal opportunities are provided to Persons with Disabilities Talent. Ampera Technologies has its Global Headquarters in Chicago, USA and its Global Delivery Center is based out of Chennai, India. We are actively expanding our Tech Delivery team in Chennai and across India. We offer exciting benefits for our teams, such as 1) Hybrid and Remote work options available, 2) Opportunity to work directly with our Global Enterprise Clients, 3) Opportunity to learn and implement evolving Technologies, 4) Comprehensive healthcare, and 5) Conducive environment for Persons with Disability Talent meeting Physical and Digital Accessibility standards
Role Overview
We are looking for an experienced Data Scientist – Agentic AI with strong expertise in Python, Machine Learning, Generative AI, Large Language Models (LLMs), RAG and Agentic AI.
The ideal candidate should have hands-on experience in developing, fine-tuning, evaluating and deploying machine learning and GenAI solutions. The candidate should be comfortable working with open-source LLMs, LangChain/LangGraph, PySpark and AI observability/tracing frameworks.
The role involves building intelligent AI systems that can reason, use tools, retrieve information and execute multi-step tasks using Agentic AI architectures.
Mandatory Technical Skills
1. Data Science & Python
- 5+ years of experience in Data Science / Machine Learning / AI.
- Strong programming experience in Python.
- Strong understanding of data analysis, feature engineering and statistical techniques.
- Experience with Python ML and data science libraries such as:
- NumPy
- Pandas
- Scikit-learn
- Matplotlib / Seaborn
- Good understanding of data preprocessing, exploratory data analysis and experimentation.
2. Machine Learning & Statistics
- Strong understanding of Machine Learning fundamentals.
- Experience with supervised and unsupervised learning techniques.
- Knowledge of:
- Regression
- Classification
- Clustering
- Feature Engineering
- Model Selection
- Hyperparameter Tuning
- Cross-validation
- Strong understanding of Statistics / ML fundamentals.
- Ability to interpret model performance and statistical results.
3. Generative AI / LLM
- Strong hands-on experience with Generative AI and Large Language Models (LLMs).
- Understanding of Transformer architecture and modern LLM-based applications.
- Experience working with commercial or open-source LLMs.
- Strong understanding of:
- Prompt Engineering
- Context Management
- Embeddings
- Tokenization
- LLM inference
- Hallucination mitigation
4. RAG – Retrieval Augmented Generation
- Strong hands-on experience developing RAG applications.
- Experience with:
- Document ingestion
- Chunking
- Embeddings
- Vector search
- Semantic search
- Retrieval pipelines
- Context retrieval
- Reranking
- Ability to optimize RAG pipelines for relevance, accuracy and latency.
- Experience integrating LLMs with enterprise knowledge sources.
5. Agentic AI
- Hands-on experience building Agentic AI / AI Agent solutions.
- Understanding of agent architecture and multi-step reasoning workflows.
- Experience with:
- AI Agents
- Multi-Agent systems
- Tool Calling
- Function Calling
- Agent orchestration
- Planning and reasoning workflows
- Memory
- Workflow automation
- Ability to build agents that can interact with tools, APIs, databases and external systems.
6. LangChain / LangGraph
- Strong hands-on experience with LangChain and/or LangGraph.
- Experience building LLM workflows and agent-based applications.
- Understanding of:
- Chains
- Agents
- Tools
- State management
- Graph-based workflows
- Agent orchestration
- Retrieval workflows
- Experience designing scalable Agentic AI workflows.
7. LLM Fine-Tuning
- Hands-on experience with LLM fine-tuning.
- Understanding of techniques such as:
- Supervised Fine-Tuning (SFT)
- Parameter-Efficient Fine-Tuning
- LoRA
- QLoRA
- Experience preparing datasets for fine-tuning.
- Ability to evaluate fine-tuned models against baseline models.
- Understanding of model optimization and inference considerations.
8. BERT / LLaMA / Open-Source LLMs
Experience working with one or more open-source / transformer-based models such as:
- BERT
- LLaMA / Llama
- Mistral
- Gemma
- Qwen
- Other open-source LLMs
Candidate should understand model loading, inference, fine-tuning and evaluation.
9. PySpark
- Strong experience with PySpark for large-scale data processing.
- Experience working with large datasets and distributed data processing.
- Knowledge of:
- Data transformations
- Data cleaning
- Aggregations
- Joins
- Spark SQL
- Performance optimization
- Ability to build scalable data processing pipelines.
10. Model Validation & Evaluation
- Experience validating and evaluating ML and GenAI models.
- Understanding of traditional ML evaluation metrics.
- Experience evaluating LLM/RAG applications using relevant quality metrics.
- Ability to compare model performance and identify areas for improvement.
- Experience with:
- Accuracy
- Precision
- Recall
- F1 Score
- ROC-AUC
- Retrieval metrics
- LLM response quality
- Groundedness / relevance
- Experience designing evaluation datasets and test cases is preferred.
11. AI Tracing / Observability
- Experience with AI/LLM tracing and observability.
- Ability to monitor AI applications in production.
- Experience tracking:
- LLM requests/responses
- Latency
- Token usage
- Errors
- Retrieval performance
- Agent/tool execution
- Model performance
- Exposure to tools/frameworks such as LangSmith, OpenTelemetry, Arize Phoenix, MLflow or similar is preferred.
12. Model Deployment
- Experience deploying ML/LLM/GenAI solutions into production.
- Exposure to cloud and/or on-premise model deployment.
- Experience with model serving, APIs and production inference.
- Knowledge of deployment environments such as:
- AWS
- Azure
- GCP
- On-premise infrastructure
- Experience with Docker, APIs and CI/CD is an advantage.
Key Responsibilities
- Design, develop and deploy Data Science, Machine Learning and GenAI solutions.
- Build production-ready RAG and Agentic AI applications.
- Develop intelligent agents capable of tool calling, reasoning and multi-step task execution.
- Build LLM-powered applications using LangChain/LangGraph.
- Work with open-source LLMs including BERT, LLaMA and other transformer-based models.
- Fine-tune LLMs for specific business use cases.
- Develop scalable data processing pipelines using PySpark.
- Perform data analysis, feature engineering and statistical modeling.
- Develop and maintain model validation and evaluation frameworks.
- Evaluate ML and LLM models using appropriate performance and quality metrics.
- Implement AI tracing, monitoring and observability for production GenAI systems.
- Deploy models and AI applications in cloud or on-premise environments.
- Optimize model performance, response quality, latency and cost.
- Troubleshoot issues related to model inference, retrieval, agents and LLM workflows.
- Collaborate with Data Scientists, ML Engineers, Software Engineers and business stakeholders.
- Convert business requirements into scalable AI/ML solutions.
Good to Have
- Experience with Vector Databases such as:
- FAISS
- Pinecone
- Weaviate
- Milvus
- Chroma
- Azure AI Search
- Experience with MLflow or similar ML lifecycle tools.
- Experience with Docker/Kubernetes.
- Experience with REST APIs / FastAPI.
- Knowledge of cloud AI/ML services.
- Experience with MLOps / LLMOps.
- Experience with multi-agent frameworks other than LangChain/LangGraph.
- Experience working with enterprise GenAI applications.
Ideal Candidate Profile
The ideal candidate should be a Data Scientist / ML Engineer with strong GenAI and Agentic AI experience, rather than a pure Python developer.
A strong candidate would typically have:
Data Science + Python + ML + Statistics + GenAI/LLM + RAG + Agentic AI + LangChain/LangGraph + LLM Fine-Tuning + Open-Source LLMs + PySpark + Model Evaluation + AI Observability + Model Deployment.
Core Mandatory Skills
Data Science, Python, Machine Learning, Statistics/ML Fundamentals, GenAI/LLM, RAG, Agentic AI, LangChain/LangGraph, LLM Fine-Tuning, BERT/LLaMA/Open-Source LLMs, PySpark, Model Validation/Evaluation, AI Tracing/Observability, Cloud/On-Prem Model Deployment.

LLM/AI Model Engineer – Training, Evaluation & Benchmarking
Location: New Delhi, India (On-site)
Employment Type: Full-time
Experience: 3–5 years
Industry: Enterprise AI / Generative AI / Machine Learning / NLP
About QubeLabs
QubeLabs is building the next generation of Enterprise AI Systems that transform workforce operations and intelligence for the financial services industry.
Our platform combines Conversational AI, Agentic AI, workflow automation, proprietary language models and enterprise intelligence. Our flagship product, QubeLabs Workmate, serves banks, NBFCs, MFIs, wealth management firms, insurance companies and fintechs across India and Europe.
At the core of our AI platform is the Vectro Series, our proprietary family of language models designed for enterprise and financial-services use cases.
We are looking for an LLM/AI Model Engineer to build the training pipelines, datasets and evaluation infrastructure required to continuously improve the Vectro Series.
Role Overview
You will work closely with the Head of AI, Research Partners and engineering teams to implement and operationalize LLM training approaches and build a reliable model improvement lifecycle:
Data Preparation → Training → Evaluation → Benchmarking → Error Analysis → Model Improvement
The role combines hands-on LLM fine-tuning, dataset engineering, tokenization, evaluation framework development and model quality management.
Key Responsibilities
1. LLM Training & Fine-tuning
Build and maintain pipelines for training and fine-tuning open-source foundation models for the Vectro Series.
Implement supervised fine-tuning (SFT), parameter-efficient fine-tuning (PEFT), LoRA/QLoRA and domain adaptation techniques; support continued pre-training where required.
Manage training configurations, checkpoints, model versions and experiment tracking.
Optimize training workflows for computational efficiency, reproducibility and reliability.
Translate model development approaches defined with the Head of AI and Research Partners into practical, scalable training pipelines.
2. Training Data & Tokenization
Build data pipelines to collect, clean, filter, normalize, deduplicate and validate training data.
Develop instruction-tuning, SFT and domain-specific datasets for financial-services and enterprise use cases.
Implement tokenization workflows, tokenizer configuration, vocabulary management, sequence packing, truncation and padding.
Address data representation challenges involving financial terminology, numerical values and multilingual content.
Maintain dataset versioning, lineage and quality controls, incorporating identified data gaps and relevant model failures into future training data.
3. Golden Dataset & Model Evaluation
Build and maintain QubeLabs' Golden Dataset to evaluate key model capabilities and target use cases.
Develop automated evaluation pipelines and reusable evaluation harnesses, combining automated metrics with human assessment where appropriate.
Evaluate accuracy, reasoning, factuality, instruction following, safety, multilingual performance and financial-domain capabilities.
Establish consistent evaluation methodology and regression tests to measure changes across model versions.
4. Benchmarking & Error Analysis
Evaluate Vectro against relevant public benchmarks and proprietary QubeLabs BFSI/enterprise benchmarks.
Compare results with relevant open-source and commercial models using consistent evaluation conditions.
Analyze failures, identify root causes across data, training and model behavior, and translate findings into actionable improvements.
Maintain reproducible benchmark results and reports to track model strengths, limitations and progress.
5. Model Quality & Release
Define model release quality gates and ensure each major release meets agreed evaluation and benchmark criteria.
Support red-teaming, robustness and safety testing.
Coordinate with the Head of AI, Research Partners and engineering teams to ensure validated model improvements are suitable for integration into production systems.
Experience
3–5 years in Machine Learning, Deep Learning, NLP, Generative AI or related fields.
Hands-on experience training or fine-tuning LLMs using open-source foundation models.
Practical experience building training pipelines, preparing datasets and evaluating model performance.
Experience with GPU-based training; distributed training is an advantage.
Financial-services, multilingual AI or enterprise AI experience is preferred.
Required Skills
LLM & Machine Learning: Large Language Models, Transformer architectures, Generative AI, NLP, Deep Learning, SFT, PEFT, LoRA/QLoRA, fine-tuning and continued pre-training.
Frameworks & Infrastructure: Python, PyTorch, Hugging Face Transformers, Hugging Face Tokenizers, GPU computing, experiment tracking and ML pipelines.
Data & Tokenization: Tokenization, tokenizer configuration, text preprocessing, sequence packing, dataset construction, data quality, versioning and lineage.
Evaluation & Benchmarking: Golden datasets, LLM evaluation, evaluation harnesses, automated and human evaluation, LLM-as-a-Judge, public and domain-specific benchmarks, regression testing and error analysis.
The role requires the ability to build both the model training pipeline and the measurement system that determines whether the model has actually improved.
What Success Looks Like
Reliable and reproducible training and fine-tuning pipelines for the Vectro Series.
High-quality training datasets, tokenization workflows and a comprehensive Golden Dataset.
Automated evaluation and benchmarking infrastructure with measurable model quality gates.
Clear, reproducible evidence of model performance against public, proprietary BFSI and relevant competing-model benchmarks.
A continuous improvement loop that converts evaluation findings into measurable gains across successive Vectro releases.
Key Performance Indicators
Training pipeline reliability and experiment throughput.
Training data quality and coverage.
Golden Dataset and evaluation coverage.
Benchmark reproducibility and model performance improvement.
Accuracy of error diagnosis and effectiveness of regression detection.
Time required to complete training, evaluation and benchmarking cycles.
Compliance with model release quality criteria.
Why Join QubeLabs?
Build the proprietary Vectro Series of enterprise and financial-services language models.
Develop model training, evaluation and benchmarking infrastructure from the ground up.
Work closely with the Head of AI and Research Partners.
Solve real-world AI challenges across financial services.
Develop proprietary datasets, benchmarks and model improvement systems.
Contribute directly to production AI systems serving customers across India and Europe.
Preferred Candidate Profile
B.Tech, M.Tech, MS or PhD in Computer Science, AI, ML, Mathematics or a related field.
3–5 years of relevant experience with strong practical skills in Python, PyTorch, LLM fine-tuning and training data pipelines.
Working knowledge of tokenization, evaluation datasets, benchmarking and regression testing.
Experience with open-source models such as Llama, Qwen, Mistral or similar is preferred.
Ability to independently build reliable model training and evaluation systems from scratch.
QubeLabs is an equal opportunity employer and values diversity and inclusion. We encourage applications from qualified candidates regardless of background or identity.











