Kristian Higgins, Developer in Chichester, United Kingdom
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Kristian Higgins

Verified Expert  in Engineering

Data Scientist and Artificial Intelligence (AI) Developer

Location
Chichester, United Kingdom
Toptal Member Since
February 21, 2022

Kristian is a data scientist with a valuable combination of AI expertise, an actuarial degree, and experience as a risk analyst at HSBC. His career has evolved from financial risk to IoT, and he is pursuing a PhD in AI research. Kristian's current focus is on NLP and audio anomaly detection, which will likely expand into computer vision anomaly detection. He thrives on variety in his work and brings exceptional value to complex AI projects in finance, insurance, IoT, and other domains.

Portfolio

Podchaser
Python, Generative Pre-trained Transformers (GPT), GPT...
IMS | Insurance & Mobility Solutions
Risk Models, Amazon Web Services (AWS), Machine Learning...
Jaywing
Attribution Modeling, Computer Vision, Churn Analysis, Regulatory Management...

Experience

Availability

Part-time

Preferred Environment

Python, Amazon Web Services (AWS), SQL, Docker, Machine Learning, Artificial Intelligence (AI), GPT, Generative Pre-trained Transformers (GPT), Natural Language Processing (NLP), Computer Vision, Big Data, Data Science

The most amazing...

...product I've developed enabled insurers to build, test, and validate configurable behavioral IoT risk models using statistics and serverless AWS services.

Work Experience

Senior Data Scientist

2022 - PRESENT
Podchaser
  • Developed an app for NLP search that connects media buyers' briefs to podcast topics.
  • Worked on uncertainty modeling in parameter estimation using Bayesian modeling.
  • Set a data science standard, best practice, and tooling, including an internal Python package.
Technologies: Python, Natural Language Processing (NLP), Generative Pre-trained Transformers (GPT), GPT, AWS IAM, Elasticsearch, Transformers

Data Scientist

2019 - 2021
IMS | Insurance & Mobility Solutions
  • Improved telematics driver safety and ROI by developing telematics products that are transparent and actionable for drivers.
  • Built ML solutions capable of terabyte-scale: engineered features, experimented with model architectures, and developed model outcomes with custom evaluation metrics that suited stakeholder expectations.
  • Advised on risk management frameworks for insurance policies to fairly dismiss drivers and improve the cost-to-income ratio.
  • Built a configurable, highly-scalable, cloud-based platform for serverless AI inference. It allowed customers to deploy their own models using ONNX and PMML formats. Introduced a JSON-based standard framework.
  • Developed internal packages and containerized solutions for data science. These included tools to understand containerized road networks using open-source data from the UK and the US.
Technologies: Risk Models, Amazon Web Services (AWS), Machine Learning, Internet of Things (IoT), Signal Processing, Machine Learning Operations (MLOps), Artificial Intelligence (AI), Telematics, JSON, Data Science

Data Science Consultant

2017 - 2019
Jaywing
  • Performed IFRS 9 regulatory capital adequacy modeling for financial services, including model monitoring, management information, financial forecasting, and model review.
  • Built machine learning models for marketing attribution to measure the marginal contribution, and therefore, ROI, of a marketing touchpoint in the sales lifecycle.
  • Developed computer vision image classifiers to support marketing operations, using PyTorch for the POC and TensorFlow for production.
  • Consulted and worked onsite with clients to gather requirements, present results, develop relationships, and uncover new opportunities to support them.
Technologies: Attribution Modeling, Computer Vision, Churn Analysis, Regulatory Management, Risk Models, Credit Risk, Consulting, IFRS 9, Financial Services, Financial Forecasting, PyTorch, TensorFlow, Proof of Concept (POC), Business Development, Classification

Risk Analyst

2015 - 2017
HSBC
  • Performed Basel model analysis and built, implemented, and tested a CRD IV exposure model for various portfolios with stakeholder engagement and management.
  • Served as the lead analyst for the first IFRS 9 model implementation and automation on SAS Data Integration Studio.
  • Provided technical consulting for data, access, and environmental issues in the analytics department.
  • Consulted on data extraction and provisioning to internal analytics teams and external credit bureaus.
Technologies: SAS, SQL, Credit Risk, IFRS 9, Financial Risk Management, Risk Management, Basel, Stakeholder Management, Stakeholder Engagement, SAS Data Integration (DI) Studio, Technical Consulting, Data Extraction, Consulting, Regulatory Management

Behavioral Scoring

An IoT project for activity risk from GPS and sensory data. The project focused on developing creative ways to serve large-scale geospatial databases and provide an intuitive model based on thousands of behavioral and situational features.

Vehicle Classification for Marketing

A PyTorch-based ResNet architecture that's fine-tuned to classify multiple types of very similar commercial vehicles for use in targeted marketing. The solution used occlusion to investigate and highlight the visual characteristics of the model that were of significance.

Languages

Python, SQL, SAS

Paradigms

Data Science, DevOps

Platforms

Jupyter Notebook, Amazon Web Services (AWS), Docker

Other

Machine Learning, Artificial Intelligence (AI), Statistics, Consulting, Natural Language Processing (NLP), Risk Models, Sensor Data, GPT, Generative Pre-trained Transformers (GPT), Computer Vision, Big Data, Actuarial, Attribution Modeling, Churn Analysis, Regulatory Management, Credit Risk, IFRS 9, Generalized Linear Model (GLM), Dimensionality Reduction, Geospatial Analytics, Internet of Things (IoT), Signal Processing, Machine Learning Operations (MLOps), Telematics, Financial Services, Financial Forecasting, Proof of Concept (POC), Business Development, Financial Risk Management, Risk Management, Basel, Stakeholder Management, Stakeholder Engagement, Technical Consulting, Data Extraction, AWS Certified Cloud Practitioner, Neural Networks, Classification, Transformers

Storage

PostgreSQL, JSON, Elasticsearch

Industry Expertise

Insurance

Libraries/APIs

PyTorch, TensorFlow, Occlusion Culling

Tools

Git, Terraform, SAS 9.3, SAS Data Integration (DI) Studio, AWS IAM

2021 - 2022

Progress Toward PhD in Data Science

The University of Essex - Essex, England, UK

2011 - 2014

Undergraduate Degree in Actuarial Science

Kingston University - London, England, UK

MARCH 2021 - PRESENT

AWS Certified Cloud Practitioner

AWS

APRIL 2016 - PRESENT

SAS Certification

SAS Manchester

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