Senior MLOps Engineer

EPAM Systems; Argentina; On-site; ARS 136,430,000 - 227,383,000; Full time

Benefits offered by this job

Healthcare benefits

Paid time off

Job summary

EPAM Systems is seeking a Senior MLOps Engineer to join an MVP engagement with a major AAA game publisher, building a test intelligence platform for two game franchises in parallel. The role emphasizes full re-derivability and model lineage from day one, ensuring production-ready, reproducible ML and signal components.

You will own the signal catalogue, vector index versioning, back-test harnesses, and calibration workflows, while guiding experiments and maintaining lineage across configurations

Qualifications

• 3+ years of experience in MLOps or ML platform engineering.
• Expertise in ML model lifecycle management, including versioning, configuration management, and rollback.
• Background in signal computation pipeline design, covering scheduled refresh, provenance capture, and grain translation.
• Proficiency in Python and SQL for ML pipeline automation.
• Knowledge of as-of temporal data systems or back-test harness design and operation.
• English proficiency at an Upper-Intermediate level (B2) or higher.

Responsibilities

• Own Signal Catalogue operations and provenance across all signals.
• Coordinate versioning of Semantic Vector Index and model changes.
• Design and implement back-test and calibration harness with temporal filtering.
• Enforce holdout discipline and configuration sweep across parameters.
• Lead experimentation framework for scoring configurations and tracked results.
• Maintain model lineage across configuration versions for franchises.
• Implement MLOps Monitor and Data-Health Monitor across ingestion channels.
• Support unbiased exploration cadence with provenance for analytics entries.
• Contribute to operator runbooks for refresh, campaigns, and reindex procedures.

Skills

MLOps

ML platform engineering

Python

SQL

Model monitoring

Drift detection

Provenance capture

Calibration methodology

Configuration management

Tools

MLflow

Kubeflow

Snowflake ML

Snowpark

pgvector

Job description

We are seeking a Senior MLOps Engineer to join an MVP engagement with a major AAA game publisher, building a test intelligence platform for two game franchises in parallel. A core design principle is full re-derivability and model lineage from day one — every run must be replayable from its stored configuration version and feed read positions. The signal catalog feeds a scoring strategy engine with versioned configurations, and calibration sweeps over historical data produce suggested weight updates surfaced directly in the Settings View. This role ensures the ML and signal components are production-ready, reproducible, and improvable over time, forming the foundation of the system's long-term value as franchise history accumulates and models are refined.

Responsibilities

• Own Signal Catalogue operations: signal refresh orchestration triggered by feed read-position advances, grain translation between per-test, per-area, and per-run signal families, and provenance capture across all 8 signals
• Operate the Semantic Vector Index versioning: coordinate with the Senior AI Developer on model and dimension stamp conventions; design and execute the controlled reindex path when the enterprise AI gateway model changes
• Design, implement, and own the Back-test & Calibration Harness: as-of temporal filtering across all record families, replay runner, look-ahead spot audit, and configuration sweep runner
• Enforce holdout patch-set discipline, configuration sweep over route limits, thresholds, weights, and Composition setting; produce catch-rate vs. scope tables per candidate configuration and publish winning configurations as suggested-weight proposals into the Settings View
• Lead Model Generation & Experimentation: systematic experimentation framework over scoring strategy configurations, tracking which signal weights and route combinations yield the best catch-rate vs. scope trade-off
• Maintain model lineage across configuration versions for both franchises
• Implement the MLOps Monitor and Data-Health Monitor: catch-rate floor monitoring, run-behavior drift counters (per-run candidate volumes per route, score distribution vs. usual range), data-health telemetry across all ingestion channels
• Manage exploration cadence support: unbiased random-sample injection with provenance ensuring exploration entries are never counted as model recommendations
• Contribute to operator runbook sections covering signal refresh, calibration campaigns, model generation runs, and embedding reindex procedures

Requirements

• 3+ years of experience in MLOps or ML platform engineering
• Expertise in ML model lifecycle management, including versioning, configuration management, and rollback
• Background in signal computation pipeline design, covering scheduled refresh, provenance capture, and grain translation
• Proficiency in calibration methodology: holdout discipline, configuration sweep design, and catch-rate vs. scope measurement
• Knowledge of as-of temporal data systems or back-test harness design and operation
• Skills in Python and SQL for ML pipeline automation
• Competency in model monitoring, including drift detection, catch-rate floor monitoring, and run-behavior drift counters
• Capability to collaborate with data engineers and AI developers on feature alignment
• Qualifications in documenting calibration procedures, signal definitions, and operational runbooks
• Familiarity with Spec Driven Development
• English proficiency at an Upper-Intermediate level (B2) or higher

Nice to have

• Understanding of MLflow, Kubeflow, or equivalent experiment tracking platforms
• Familiarity with Snowflake ML or Snowpark
• Showcase of embedding model versioning and controlled reindex orchestration
• Skills in pgvector or vector store operational management
• Background in gaming domain or QA tooling

We offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn