Remote, sf
251 - 500 employees
101 - 250 engineers
$100m+ funding
Series b

Relationships are the backbone of the world's most valuable industries—from sales and business development to finance and philanthropy. But the tools used today to manage those relationships are broken. Actionable context remains locked away in the email and calendar streams of coworkers and colleagues, and no one has the time to analyze or organize this exponentially growing trail of data.

Affinity ingests and analyzes this massive communications data stream and uses it to power our platform, which helps our customers understand, manage, and leverage their networks more effectively.

We've raised over $40M, and since launching our product in the past three years, we've processed over 1 billion communication data points, generated 5+ million introductions and connections, and captured over 40% of the global venture capital market. We're actively expanding our reach across many new markets, and we've got a lot left to build. photo 1 photo 2 photo 3
Active Roles

Why join us?

  • We have a great team — Our engineering team has worked at great companies (Google, Facebook, Quora, Dropbox, Stripe, Airbnb, Palantir, etc). Our design advisor is Joshua Goldenberg (Head of Design at Slack). Our founders include Joe Lonsdale (founder of Palantir), and our VP of Product used to run growth at SurveyMonkey.

  • We're working with lots of great customers and growing fast — in two years we've captured 40% of the global venture capital market, as well as many of the best names in private equity, corporate development, real estate, agencies, and more - you can see some of them here. We've grown revenue exponentially over the past couple of years and have big plans for growth in the coming years — we'd love your help in tackling them.

  • We're driven by our values — You can read about our values here. We take them seriously (they are, for instance, part of every hiring decision) and they're a big part of how we work together.

  • We're solving a planet-scale problem — Relationships are the lifeblood of every major industry and form the foundation for almost every successful career. Through executing on our vision, we have the potential to create immense value for companies and people around the world.

  • We invest in our people and our culture - Since day one, our top priorities have been investing in our people and our culture. We've been named an Inc. Best Workplace, a Great Place to Work, and more.

Engineering at

Engineering team and processes

As a team, we value feedback, learning, and deep collaboration within engineering as well as with product, design, and business-facing teams. We use a lightweight 2-week sprint process to stay focused and get things done, and we use retrospective meetings to continuously improve.

Technical Challenges

Scaling and performance: Tracking communication flows between our customers and all of their contacts means that we capture a huge amount of data. This creates a ton of interesting challenges: How can we rapidly ingest billions of emails and calendar events? How can we scale out data processing and analysis across all those data points? How can we keep user-facing response times low while querying this dataset?

Artificial intelligence: We're automating a lot of processes for our customers by extracting insights from data, which can be tricky to get right. For instance, how can we figure out which emails need a reply, so we can help our clients avoid dropping the ball? How can we intelligently identify introduction emails? How can we compute an accurate relationship strength score based on a history of interactions?

Security: Our customers handle huge deals where confidential information is critical. Security needs to be top-notch: email and calendar data, for instance, is extremely sensitive and needs to be kept safe.

Projects you might work on
  • Revamp our data architecture for scale —As our company and product scale to serve many more users, we’re ready to revamp our architecture to efficiently capture and analyze billions of more data points. We’re rapidly outgrowing our single-node PostgreSQL instance, and exploring solutions involving replication, sharding, and NoSQL systems to maintain and improve performance for our production systems even as our datasets grow exponentially.

  • Perfect our web and mobile apps — If you're passionate about interfaces, you’ll create beautiful, intuitive visualizations and features to help our users find clarity in a world full of noise. You'll work closely with other talented product designers to create interfaces that customers love to use.

Tech stack
React Native

Working at

We are playmakers.

We are team players who empower our teammates to do their best work. We are not afraid to step outside the scope of our roles if it will help the team win.

We care personally for each other.

We recognize that our teammates are people who have strengths, weaknesses, dreams & life stories. We take the time to better understand where they come from, and know that this makes for better collaboration on the difficult problems we have to solve. We also actively express our appreciation for the hard work our teammates do.

We are obsessed with learning.

We are dedicated learners and teachers. We constantly ask ourselves how we can do things better and are never satisfied. As both individuals and a company, we are always seeking new avenues to improve ourselves and to achieve our goals.

We take pride in what we do.

We care deeply about delivering exceptional work and we take ownership over our results. This makes us an extremely passionate, driven, and resilient group. For all of us here at Affinity, our work is not just a means to an end: we derive tremendous fulfillment from putting our very best into our work.

We are radically open-minded.

We value ideas over titles. We believe that the best ideas can come from anywhere, both within and outside our company. This means we’re unafraid to speak our thoughts, seek help from peers, and receive feedback with an open mind. Seeking truth is our ultimate goal - and we’re ready to change our minds based on data.

Perks & benefits
  • Generous Vacation


  • Free Food

    We cover lunch - whether you want to order in or take a break from the office and explore somewhere in our neighborhood.

  • Company Retreats

    We plan quarterly all-company retreats. Some of our previous retreats have been in Tahoe, Pismo Beach, and the Russian River.

  • Workshops/Conferences

    We provide an annual stipend so engineers can attend any conference (or take any course) of their choosing.

  • Flexible Hours

    Most of our engineers work from about 10AM to 6:30PM, but this isn't a hard-and-fast rule at all. Feel free to work the hours that make sense for you, and work from home when you need it.

  • Health Insurance

    We provide full medical and dental coverage (and cover 100% of your premium).

  • Team Activities

    We've done everything from happy hours to escape rooms to picnics.

  • Transportation

    We'll subsidize a train/bus pass for you.

  • Work from Home

    We value in-person presence, but are flexible; feel free to work from home (or from anywhere else) when you need it.

  • Relocation

    We offer a $3k relocation bonus if you're coming from outside the Bay Area.

  • Pet Friendly
Our Team by the Numbers

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