Talent.com
Semantic Backend Engineer (Contract, Remote)
Semantic Backend Engineer (Contract, Remote)Infuse • Madison, WI, United States
Semantic Backend Engineer (Contract, Remote)

Semantic Backend Engineer (Contract, Remote)

Infuse • Madison, WI, United States
[job_card.variable_days_ago]
[job_preview.job_type]
  • [job_card.full_time]
  • [filters.remote]
[job_card.job_description]

Semantic Backend Engineer (Contract, Remote)

Our hiring process :

  • We will review your application against our job requirements. We do not employ machine learning technologies during this phase as we believe every human deserves attention from another human. We do not think machines can evaluate your application quite like our seasoned recruiting professionalsevery person is unique. We promise to give your candidacy a fair and detailed assessment.
  • We may then invite you to submit a video interview for the review of the hiring manager. This video interview is often followed by a test or short project that allows us to determine whether you will be a good fit for the team.
  • At this point, we will invite you to interview with our hiring manager and / or the interview team. Please note : We do not conduct interviews via text message, Telegram, etc. and we never hire anyone into our organization without having met you face-to-face (or via Zoom). You will be invited to come to a live meeting or Zoom, where you will meet our INFUSE team.
  • From there on, it's decision time! If you are still excited to join INFUSE and we like you as much, we will have a conversation about your offer. We do not make offers without giving you the opportunity to speak with us live.

INKHUB is ingesting 10 million raw PDFs to build the internet's richest catalog of marketing-grade B2B content - tagged, summarized, and searchable by topic, company, or intent.

We're looking for an applied ML engineer to own the semantic ingestion pipeline, from raw PDFs to tagged, summarized, and embedded assets.

What You'll Do

  • Own the ETL pipeline from raw PDFs (S3-ingested) to structured resources
  • Finalize our summarization + classification flow using open-source models with GPT-4o fallback
  • Apply filtering logic (?3 years old, ?100 pages, etc) to enforce resource quality
  • Map each asset to the specific topic taxonomy (10+ per topic across ~9,000 topics)
  • Generate dense embeddings using sentence-transformers
  • Load and query embeddings using Milvus or pgvector
  • Implement "freshness" logic to identify and index only new or updated content based on file diffing, crawl timestamp, or document hash
  • Build a QA / eval harness : format compliance, recall@5, drift monitoring
  • Expose / v1 / semantic-search via FastAPI, with filtering and rank fusion
  • Collaborate closely with our Tech Lead on UX integration and snippet generation
  • Your Toolbox

  • Python, PyTorch, sentence-transformers, OpenAI APIs, or similar pretrained LLMs.
  • FastAPI, Milvus or pgvector, PyPDF / Tika, Airflow or Lambda for orchestration
  • Docker, GPU scheduling, Athena / Redshift SQL
  • You Might Be a Fit If...

  • You've built ML pipelines that touched real users, not just notebooks
  • You've worked on semantic search, embeddings, or large-scale tagging
  • You've wrestled with unstructured data and love turning chaos into clarity
  • You like working fast, iterating with feedback, and tracking metrics that matter
  • Why This Role Matters

    Your models decide what gets found, how it's tagged, and which content and companies stand out. You'll help define what "relevance" and "freshness" mean for over a million resources and 50,000+ company pages-and make sure INKHUB stays ahead of the curve.

    [job_alerts.create_a_job]

    Backend Engineer • Madison, WI, United States

    [internal_linking.similar_jobs]
    Remote Side Hustle Developer

    Remote Side Hustle Developer

    Finance Buzz • Evansville, Wisconsin, US
    [filters.remote]
    [job_card.full_time] +1
    This position is for individuals who want to develop a side income stream while still working full time.You will test different small-scale remote opportunities, learn what works, and grow what pro...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Underwriter - Remote

    Underwriter - Remote

    TradeJobsWorkForce • 53502 Albany, WI, US
    [filters.remote]
    [job_card.full_time]
    Underwriter Job Duties : Analyze financial data related to loan requests.Evaluate loan do...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Survey Taker : Earn up to $25 per survey (Remote)

    Survey Taker : Earn up to $25 per survey (Remote)

    Earn Haus • Sun Prairie, WI, US
    [filters.remote]
    [job_card.full_time] +1
    Looking for people to participate in taking online surveys for Fortune 500 brands.All you need to do is complete online surveys by sharing your opinion. You will help influence brand decisions on se...[show_more]
    [last_updated.last_updated_1_day] • [promoted]
    Solutions Consultant

    Solutions Consultant

    Heartland Business Systems, LLC • Sun Prairie, WI, US
    [job_card.full_time]
    An HBS Solutions Consultant I (SCI) is involved in the sales process in all aspects of HBS technology solutions and services as it relates to short and long term goals and strategies of our custome...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    PayPal Dispute Resolution Specialist

    PayPal Dispute Resolution Specialist

    TradeJobsWorkforce • 53502 Albany, WI, US
    [job_card.full_time]
    We have an opening for a talented PayPal Dispute Resolution Specialist to perform daily responsibilities with dedication. Stay adaptable in a dynamic, fast-paced environment.Provide excellent intera...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Remote Side Hustle Evaluator - Flexible Online Gig Work

    Remote Side Hustle Evaluator - Flexible Online Gig Work

    Finance Buzz • Evansville, Wisconsin, US
    [filters.remote]
    [job_card.temporary]
    Are you looking to earn extra income from the comfort of your home? We're seeking motivated individuals to explore and test a variety of remote side hustle opportunities featured on FinanceBuzz.Thi...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Wax Specialist

    Wax Specialist

    Waxing the City • Sun Prairie, WI, US
    [job_card.full_time]
    At Waxing the City, our licensed service providers are not only waxing experts, they’re waxing authorities.This led us to create our very own title of Cerologist™ technicians, combining...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    PayPal Risk Operations Associate

    PayPal Risk Operations Associate

    TradeJobsWorkforce • 53502 Albany, WI, US
    [job_card.full_time]
    An exciting opportunity awaits for a PayPal Risk Operations Associate to perform daily responsibilities with dedication.Provide excellent interactions with customers and colleagues.Stay adaptable i...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Senior Technical Support Engineer

    Senior Technical Support Engineer

    Eliassen Group • Madison, WI, United States
    [job_card.temporary]
    Senior Technical Support Engineer.Join a leading multinational IT service and consulting corporation as a Senior Technical Support Engineer in a fully remote role available across the 48 contiguous...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Tools Associate

    Tools Associate

    Hooper Deforest • De Forest, WI, US
    [job_card.full_time]
    Oversee the organization, tracking, and distribution of tools and materials for Hooper’s Fabrication Shop and jobsites.This role requires close collaboration with office staff, jobsite foreme...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Dashers - Sign Up and Start Earning

    Dashers - Sign Up and Start Earning

    DoorDash • Footville, WI, US
    [job_card.full_time] +1
    DoorDash is the #1 category leader in food delivery, food pickup, and convenience store delivery in the US, trusted by millions of customers every day. As a Dasher, you’ll stay busy with a variety o...[show_more]
    [last_updated.last_updated_1_day] • [promoted]
    Sales Support Associate - Full-Time

    Sales Support Associate - Full-Time

    Kelley Williamson Company • Madison, WI, US
    [job_card.full_time]
    Fish Hatchery Rd, Madison WI 53713.Join a company with deep roots and big opportunities! Since 1926, Kelley's Market has been serving Northern Illinois and Southern Wisconsin as a family-owned conv...[show_more]
    [last_updated.last_updated_1_day] • [promoted]
    Project Accountant - Mechanical •

    Project Accountant - Mechanical •

    Hooper Deforest • De Forest, WI, US
    [job_card.full_time]
    Since 1913, Hooper has grown to become a well-respected electric power and mechanical contractor.With headquarters in Wisconsin and regional offices in the states of Colorado, Florida, and Ohio, Ho...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Senior Technical Support Engineer, MI - I

    Senior Technical Support Engineer, MI - I

    FUJIFILM Corporation • Madison, WI, United States
    [job_card.full_time]
    The Senior Technical Support Engineer, MI - I (Tier 1) provides highly visible remote technical support across our product lines for HCUS customers. This role focuses on more complex issue and is th...[show_more]
    [last_updated.last_updated_variable_days] • [promoted]
    Flexible

    Flexible

    HomeJobFinder • Evansville, WI
    [filters.remote]
    [job_card.full_time]
    Flexible Job Opportunity : Link Posting Marketing Rep (No Experience Needed!) • •Are you driven, dependable, and ready to build income from ANYWHERE? • • We’re searching for motivated ...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Pharmacist - Newly Increased Salary Range

    Pharmacist - Newly Increased Salary Range

    WALGREENS • Sun Prairie, WI, US
    [job_card.full_time]
    Join Our Team at Walgreens as a Pharmacist!.Why Walgreens – For You, For Your Family, For Your Future.At Walgreens, pharmacists are medication experts and trusted healthcare providers reshaping the...[show_more]
    [last_updated.last_updated_variable_hours] • [promoted] • [new]
    Java Server Engineer

    Java Server Engineer

    TradeJobsWorkForce • 53502 Albany, WI, US
    [job_card.full_time]
    Java Server Engineer Job Duties : Evaluates Web applications by studying systems flow, data usage, and ...[show_more]
    [last_updated.last_updated_30] • [promoted]
    Tool Crib Associate

    Tool Crib Associate

    Madison-Kipp Corporation • Sun Prairie, WI, US
    [job_card.full_time]
    Here at MKC, we are one of the leaders in our field of high pressure die casting and precision machining for customers in the automotive and recreational markets. We are proud of our 125-Year Histor...[show_more]
    [last_updated.last_updated_30] • [promoted]