Affinity

Senior AI Engineer

Affinity$160K — $220K *
US-AnywhereRemote in Canada
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of software engineering and machine learning experience in production environments.
  • Practical experience with LLM applications, including prompt engineering and evaluation frameworks.
  • Familiar with LLM-assisted search techniques such as query understanding and text-to-SQL.
  • Experience with vector or graph databases for data management.
  • Knowledgeable in document chunking, embedding models, and context window optimization.
  • Understanding of metadata-based retrieval and re-ranking strategies.
  • Hands-on experience with evaluation metrics such as perplexity and factual consistency.

Responsibilities

  • Architect, prototype, and deploy retrieval-augmented generation systems.
  • Contribute to the design and orchestration of multi-agent LLM systems using existing frameworks.
  • Tackle complex information extraction and retrieval challenges from diverse data types.
  • Collaborate with product and engineering teams to create resilient, scalable systems.
  • Ensure high-quality data processing and machine learning operations across the platform.

Benefits

  • Health benefits covering premiums for you and your dependents, with flexible personal and sick days.
  • Retirement planning support through an RRSP program.
  • An annual budget for education and professional development opportunities.
  • Monthly reimbursements for home internet, meals, and wellness-related expenses.
  • Opportunities for virtual team-building activities to foster connections among colleagues.
Full Job Description
This role is part of the AI Platform team, which owns the AI services that power Affinity's industry-leading relationship intelligence platform. We extract and retrieve information from billions of structured and unstructured data points to deliver actionable insights to customers.

As a Senior AI Engineer, you will collaborate with machine learning engineers, data engineers, software engineers, and product managers to shape the future of private capital's leading CRM platform. You will design and build LLM-powered AI systems that efficiently uncover insights from compelling business interaction data - an exciting and unique opportunity within the industry.

In this role you will:
  • Build RAG systems: Architect, prototype, and deploy RAG pipelines, combining vector search, hybrid retrieval, reranking and contextual compression techniques.
  • Build LLM powered agent systems: Contribute to design and orchestration of multi-agent LLM systems using community frameworks and custom orchestration layers.
  • Solve complex problems: Work on a variety of information extraction, information storage and information retrieval problems for both structured and unstructured data.
  • Collaborate cross-functionally: Partner with cross-functional (product, infra, data engineering, and software engineering) to build robust, high-scale systems that underlie all of our data processing and ML Operations.

Qualifications

Don't meet every single requirement? Studies have shown that women and people of color are less likely to apply to jobs unless they meet every qualification. At Affinity, we are dedicated to building a diverse, inclusive, and authentic workplace, so if you're excited about this role, but your past experience doesn't perfectly align with the qualifications above, we encourage you to apply anyways. You may be just the right candidate for this or other roles.

Required:
  • 5+ years of experience in software engineering and/or Machine Learning experience in applying machine learning in production.
  • Hands on experience with LLM applications in production including prompt engineering and utilizing frameworks for online and offline evaluation
  • Experience with LLM assisted search, such as query understanding and augmentation, text2sql, and entity extraction
  • Experience with vector or graph databases
  • Experience with document chunking, embedding models, and context window optimization
  • Familiarity with metadata-based retrieval and re-ranking strategies
  • Hands on experiences with model evaluation metrics (e.g. perplexity, hallucination rate, factual consistency)
  • Familiarity with data security, versioning, and MLOps principles

Nice to Have:
  • Experience with enterprise AI applications with strict compliance, audit, or legal requirements
  • Experience with dataset engineering, including data curation, augmentation, and synthesis, to assist ML model improvements.
  • Experience with multi-modal search
  • Experience with graph based recommendation systems, such as graph NN.
  • Experience with developing AI applications powered by agent-based systems
  • Experience with packaging, CI/CD and pipeline automation.

Tech stack: Our ML pipeline manages multiple Python services that support various AI features, including utilizing OCR to extract information from unstructured data, serving embedding models to vectorize chunks, and ranking a list of recommendations based on relevance and user preference.

How we work:

Our culture is a key part of how we operate, as well as our hiring process:
  • We iterate quickly. As such, you must be comfortable embracing ambiguity, be able to cut through it, and deliver value to our customers.
  • We are candid, transparent, and speak our minds while simultaneously caring personally with each person we interact with.
  • We make data-driven decisions and make the best decision for the moment based on the information available.

What you'll enjoy at Affinity:
  • We live our values: As owners, we take pride in everything we do. We embrace a growth mindset, engage in respectful candor, act as playmakers, and "taste the soup" by diving deep into experiences to create the best outcomes for our colleagues and clients.
  • Health Benefits: We cover both you and your dependents' extended health benefit premiums and offer flexible personal & sick days to support your well-being.
  • Retirement Planning: We offer an RRSP plan to help you plan for your future.
  • Learning & Development: We provide an annual education budget and a comprehensive L&D program.
  • Wellness Support: We reimburse monthly for things like home internet, meals, and wellness memberships/equipment to support your overall health and happiness.
  • Team Connection: Virtual team-building activities and socials to keep our team connected, because building strong relationships is key to success.

Please note that the role compensation details below reflect the base salary only and do not include any equity or benefits. This represents the salary range that Affinity believes, in good faith, at the time of this posting, that it will pay for the posted job.

A reasonable estimate of the current range is $160,000 to $220,000 CAD. Within the range, individual pay depends on various factors including geographical location and review of experience, knowledge, skills, abilities of the applicant.

Additional Information:
  • This job posting represents an active vacancy that we are currently seeking to fill.

About Affinity

Affinity’s patented technology structures and analyzes millions of data points across emails, calendars, and third-party sources to offer users the tools they need to automatically manage their most valuable relationships, prioritize important connections, and discover untapped opportunities. Affinity uses artificial intelligence to analyze relationship strength and illuminate the best paths to warm introductions. The platform also offers a holistic view of users’ networks in a centralized, automatically updated database without any manual upkeep. Founded in 2014, Affinity is headquartered in San Francisco, California. Affinity has raised $120M to date and is backed by leading investors including Menlo Ventures, Advance Venture Partners, 8VC and MassMutual Ventures. It has over 2,700 customers in 70 countries, including venture capital firms such as Bain Capital Ventures and Kleiner Perkins, private equity firms such as SoftBank Group, investment bankers such as Woodside Capital Partners, financial services firms such as Fidelity Investments, real estate companies such as Tishman Speyer, insurers such as American Family Insurance and enterprises such as Nike, Qualcomm and Twilio. Affinity has been named in Fortune Magazine's Best Workplaces, Inc. Magazine's Best Workplaces and editor's number one pick, the Data Breakthrough Award, BIG Innovation Award and others.
Learn more about Affinity
Size
1,000 employees
Industry
Founded
2014

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