HireFT
Browse JobsHow it worksPricingAboutSuccess Stories
    Back to jobs
    SI

    Sigma Software

    AdTech

    Senior MLOps / ML Platform Engineer

    Warsaw, PolandRemoteFull-time5+ yrs experiencePosted 2w ago
    All Sigma Software jobs

    Job description

    • Build and maintain ML training orchestration pipelines across hourly, daily, and weekly schedules
    • Implement retries, backfills, and idempotent execution mechanisms
    • Design and support model registry workflows including versioning, lineage, evaluation gates, and promotion processes
    • Develop isolated per-advertiser model environments with namespace and configuration separation
    • Build scalable refresh pipelines and publishing workflows for serving infrastructure
    • Implement shadow mode and champion/challenger deployment strategies
    • Develop monitoring and alerting for ML-specific metrics including feature drift, prediction drift, train/serve skew, and calibration decay
    • Ensure reproducibility of ML workflows using containerized environments, pinned dependencies, and data snapshots
    • Monitor training and scoring costs across tenants
    • Collaborate with DevOps and SRE engineers on CI/CD and infrastructure automation
    • Prepare operational documentation and platform handover materials
    • 5+ years of experience in MLOps, ML platform engineering, or infrastructure engineering supporting production ML systems
    • Strong Python skills and experience building platform-level tooling and automation
    • Hands-on experience with Kubernetes and Docker
    • Experience building CI/CD pipelines for ML workloads
    • Hands-on production experience with MLflow, Kubeflow, Airflow, Argo Workflows, Vertex Pipelines, or similar orchestration and ML lifecycle platforms
    • Experience with ML platforms and model lifecycle tools such as Vertex AI, MLflow, or Kubeflow
    • Strong understanding of ML observability including drift detection, train/serve skew monitoring, and incident response
    • Experience designing or supporting multi-tenant ML systems and isolated model environments
    • Experience working with cloud platforms, preferably GCP
    • Experience with infrastructure-as-code tools such as Terraform
    • Experience with Linux environments
    • Understanding of the ML lifecycle and productionization processes
    • Upper-Intermediate English level or higher

    WILL BE A PLUS

    • Experience with feature stores and feature consistency management
    • Experience with large-scale batch scoring systems operating under freshness SLAs
    • Familiarity with experiment tracking platforms and evaluation gates
    • Experience with on-premises Kubernetes or bare-metal Linux infrastructure
    • Knowledge of DVC, lakeFS, or other data versioning tools
    • Experience with Bigtable, Redis, Aerospike, or similar low-latency serving databases
    • GPU scheduling and training cost optimization experience
    • Familiarity with SOC 2, ISO 27001, or GDPR-related compliance requirements

    PERSONAL PROFILE

    • Strong ownership mindset and focus on operational reliability
    • Ability to work independently in complex distributed systems environments
    • Strong collaboration and communication skills
    • Analytical thinking with attention to scalability and maintainability
    • Comfortable working in fast-paced product-oriented environments

    Job details are sourced from the employer's original posting.

    Open job posting
    SI

    About the company

    Sigma Software

    We are looking for a Senior Go Developer to join our dynamic team and work on cutting-edge AdTech solutions. This role offers the opportunity to experiment with AI, LLMs, and emerging technologies while solving complex challenges in large-scale data processing.  CUSTOMER Our customer is a global leader in contextual advertising with more than 500 employees worldwide. They specialize in delivering highly relevant ads by leveraging AI, real-time technology, and large-scale data processing. Operating in the AdTech industry, they are recognized for innovation in Connected TV (CTV) advertising. The team you will join works with the agility of a startup while benefiting from the resources of a global organization. PROJECT You will contribute to the development of a smart advertising platform that processes terabytes of data to understand audiences and deliver precise, contextual ads. The platform combines AI, LLMs, and emerging technologies to push the boundaries of CTV advertising. In this role, you will own innovation end-to-end — from research and prototyping to delivering production-ready solutions.

    View all Sigma Software jobs
    Industry
    AdTech
    Open roles
    49

    Interested in this role?

    Apply with HireFT

    Free to start — no card required.

    Your fit

    How well do you match?

    Sign in to see how your résumé lines up with this role.