{"id":18610,"url":"https://alion.io/job/simplisafe-sr-data-engineer","title":"Sr. Data Engineer","company":{"id":5386,"name":"SimpliSafe","domain":"simplisafe.com","url":"https://alion.io/company/simplisafe","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":76,"open_postings":4,"ghost_share":0,"stale_share":0.75,"repost_share":0,"time_to_fill_p50_days":72,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Data Science","role_family":"Data Science","seniority":"senior","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"board_field","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":["India"],"countries":["IN"],"hiring_countries":["IN"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":115000,"max_usd":198000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":184},"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon S3","optional":false},{"name":"AWS","optional":false},{"name":"Embeddings","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GCP","optional":false},{"name":"Google BigQuery","optional":false},{"name":"Human-in-the-Loop","optional":false},{"name":"Machine Learning","optional":false},{"name":"Python","optional":false},{"name":"SQL","optional":false},{"name":"FAISS","optional":true},{"name":"Hadoop","optional":true},{"name":"Milvus","optional":true},{"name":"MLFlow","optional":true},{"name":"Pinecone","optional":true},{"name":"Ray","optional":true},{"name":"Scale AI","optional":true},{"name":"Snorkel","optional":true},{"name":"Spark","optional":true},{"name":"Weights & Biases","optional":true}],"status":"closed","first_seen_at":"2026-07-25T00:57:56Z","employer_posted_date":null,"last_verified_at":"2026-10-25T18:47:17Z","board_verified":false,"closed_at":"2026-10-25T18:47:17Z","days_open":92,"trust":{"level":"ok","repost_count":1,"flags":[],"days_open":92},"description":"We are looking for an experienced Data Engineer to join our machine learning team and serve as the vital link between raw data and high-performing ML models. In this role, you will drive the design, implementation, and management of an integrated system dedicated to data curation, annotation workflows, quality assurance, and dataset composition. In this role, you will drive the design and implementation of an integrated data system dedicated to advanced data curation, annotation workflows, quality assurance, and dataset composition. If you have a passion for data infrastructure, automation, and optimizing human-in-the-loop annotation processes at scale, we'd love to hear from you.\n\nResponsibilities: \nData Lake Management: Design, build, and maintain our AWS data lake architecture (focusing on S3 Athena, and Glue) to serve as the highly accessible foundation for all ML data workloads.\nETL and Pipeline Development: Architect and build scalable, robust data pipelines to ingest, transform, and deliver massive datasets seamlessly.\nBuild Specialized Datasets: Partner closely with ML engineers and modelers to curate raw data and prepare high-quality baseline training sets, experimental datasets for testing new ML hypotheses, and targeted validation sets specifically designed to evaluate \"hard cases\" and edge cases.\nAdvanced Data Curation: Collaborate with the modeling team to leverage data embeddings to cluster, filter, and surface the most informative data points for\nannotation, ensuring we are spending our annotation budget on the highest-value data.\nPlatform Integration: Build secure, reliable integrations between our internal data ecosystem and specialized third-party data annotation platforms.\nManage the Annotation Lifecycle: Oversee end-to-end annotation workflows, including job creation, platform configuration, and syncing/maintaining large annotated datasets.\nEnsure Data Quality: Partner with ML engineers and modelers to conduct spot annotation quality assurance (QA), establishing a shared workflow to ensure labeled data meets strict accuracy and consistency standards at scale.\nData Governance and Schema Design: Design optimized database schemas for large-scale data exploration and implement best practices in data cataloging, dataset version control, and data stewardship.\nBest Practices: Advocate for and implement best practices in data stewardship, dataset version control, and system monitoring.\n\nRequirements: \nExperience: 5+ years of experience in data engineering, with at least 3 years explicitly focused on building data pipelines, managing data lakes, and curating large-scale datasets.\nCloud Data Ecosystems: Strong, hands-on experience with the AWS Data stack, specifically Amazon S3 Athena, and Glue (or deep expertise in an equivalent ecosystem like GCP BigQuery).\nProgramming and Databases: High proficiency in Python and advanced SQL, with a proven track record of designing robust database schemas and complex ETL processes.\nNavigating Ambiguity: Proven skill in developing organized, reliable data structures and pipelines within highly unstructured data settings.\nData Lifecycle: Solid understanding of the ML data lifecycle, including data tracking, dataset versioning, and the specific data structures required by modeling teams.\nCommunication: Exceptional communication skills, specifically the ability to translate complex data requirements into easily understandable instructions for annotation teams.\n\nNice to Have: \nEmbedding and Vector Tech: Experience working with embeddings for data curation as well as familiarity with vector databases or similarity search libraries (e. g., FAISS, Pinecone, and Milvus).\nBig Data Technologies: Experience with distributed computing and large-scale data processing frameworks (e. g., Spark, Hadoop, Ray, or AWS EMR).\nAnnotation Platforms: Hands-on experience with specialized data labeling and annotation platforms (e. g., Scale AI, Labelbox, Snorkel, Toloka).\nData Tracking Tools: Familiarity with tools such as MLflow or Weights and Biases for dataset and artifact tracking.\nSkills\nAmazon Athena, Amazon S3, AWS, ETL, Python, SQL, BigQuery, Data Analysis, Data Structures, Data Warehousing, Hadoop, Machine Learning, Search, 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