Lead ML & Optimization Specialist

We are seeking a Lead ML & Optimization Specialist to assess how current models are built and applied, identify weaknesses, and recommend improvements based on sound mathematical and operations research principles. Responsibilities Identify flags such as formulation errors, infeasibilities, unboundedness, poor scaling, non-convexities, and inappropriate solver or method choices Assess whether each problem is modeled with the right approach, whether linear, non-linear, or convex formulation Determine the suitability of linear versus non-linear programming methods for a given problem Suggest clear, actionable improvements to models, methods, and solution approaches Document recommended changes and findings for stakeholders and technical teams Requirements 5+ years of experience in optimization, operations research, or applied mathematics In-depth knowledge of Convex Optimization, including convexity, duality, and optimality conditions Strong command of Linear Programming, including formulation, the simplex and interior-point methods, sensitivity analysis, and duality Very good understanding of Linear and Non-linear Programming, including their theory, solution methods, and limitations English proficiency at B2 level or higher Nice to have Background in Oil & Gas domain Belarus (Remote) We connect like-minded people: Delivering innovative solutions to industry leaders, making a global impact Opportunity to work abroad for up to two months per year We invest in your growth: Leadership development, career advising, soft skills and well-being programs Unlimited access to EPAM's internal learning database Free English classes with certified teachers We cover it all: Comprehensive medical & family care package Seven trust days per year (sick leave without a medical certificate) Discounts from 800+ partners (sports activities, restaurants, stores and services) Georgia (Production) We connect like-minded people Delivering innovative solutions to industry leaders, making a global impact Enjoyable working environment, whether it is the vibrant office or the comfort of your own home Opportunity to work abroad for up to two months per year Relocation opportunities within our offices in 55+ countries Corporate and social events We invest in your growth Leadership development, career advising, soft skills and well-being programs Certifications, including GCP, Azure and AWS Unlimited access to EPAM's internal learning database Free English classes with certified teachers We cover it all Participation in the Employee Stock Purchase Plan Monetary bonuses for engaging in the referral program Comprehensive medical & family care package Five trust days per year (sick leave without a medical certificate) Benefits package (sports activities, a variety of stores and services) Kazakhstan (Prod) We connect like-minded people: Delivering innovative solutions to industry leaders, making a global impact Enjoyable working environment, whether it is the vibrant office or the comfort of your own home Opportunity to work abroad for up to two months per year Relocation opportunities within our offices in 55+ countries Corporate and social events We invest in your growth: Leadership development, career advising, soft skills and well-being programs Certifications, including GCP, Azure and AWS Unlimited access to EPAM's internal learning database Free English classes with certified teachers Discounts in local language schools, including online courses for the Kazakh language We cover it all: Participation in the Employee Stock Purchase Plan Monetary bonuses for engaging in the referral program Medical & family care package Six trust days per year (sick leave without a medical certificate) Coverage of psychology sessions of your choice Benefits package (sports activities, a variety of stores and services) Housing support program: preferential mortgage access via Otbasy Bank partnership Kyrgyzstan (Prod) We connect like-minded people: Delivering innovative solutions to industry leaders, making a global impact Enjoyable working environment, whether it is the vibrant office or the comfort of your own home Opportunity to work abroad for up to two months per year Relocation opportunities within our offices in 55+ countries Corporate and social events We invest in your growth: Leadership development, career advising, soft skills and well-being programs Certifications, including GCP, Azure and AWS Unlimited access to EPAM's internal learning database Free English classes with certified teachers We cover it all: Monetary bonuses for engaging in the referral program Medical & family care package Six trust days per year (sick leave without a medical certificate) Coverage of psychology sessions of your choice Discounts for fitness clubs and sports programs Benefits package (sports activities, a variety of stores and services) Uzbekistan (Prod) We connect like-minded people: Delivering innovative solutions to industry leaders, making a global impact Enjoyable working environment, whether it is the vibrant office or the comfort of your own home Opportunity to work abroad for up to two months per year Relocation opportunities within our offices in 55+ countries Corporate and social events We invest in your growth: Leadership development, career advising, soft skills and well-being programs Certifications, including GCP, Azure and AWS Unlimited access to EPAM's internal learning database Free English classes with certified teachers Discounts in local language schools, including offline courses for the Uzbek language We cover it all: Monetary bonuses for engaging in the referral program Medical & family care package Four trust days per year (sick leave without a medical certificate) Discounts for fitness clubs, dance schools and sports programs Benefits package (sports activities, a variety of stores and services)