Intelligence-driven technical & growth advisory.

Talent from Intuit & Cision/PRNewswire.

Engineering, growth, AI strategy, performance, brand. We attach to your business, do the work, and stay until it’s done. Then we ride off.

  • $1.2M in growth experiments at Intuit Mailchimp
  • 200M+ users served
  • 100/100 Lighthouse · every site shipped
  • Sub-1s LCP on every render

Behind Sidecar

Sidecar is led by Randy Kinne, most recently a staff engineer at Intuit Mailchimp. He owned performance and stability across the company’s web infrastructure, and before that led the recommendations engine serving 13M+ email marketers.

Most shops are technical or marketing. Sidecar is both, backed by tooling we built ourselves.

bearing.sidecar.services landing page: a serif wordmark on the left, a dark dashboard panel on the right showing an AI-generated heading, a plain-English summary of mobile vs. desktop conversion, and a TOP 3 MOVES list ranked by impact and effort.
Proprietary AI infrastructure · deployed on every engagement Bearing. Our own analytics tool. Privacy-first measurement, plain-English interpretation, ranked recommendations. It’s running on this page right now. Read the case study → See it live →

Results

Measured, and attributed.

  • +73%

    Bookings per visitor

    Z's Auto Detailing. One change to where the booking buttons live. Measured in Bearing over the following six weeks.

    How that was measured →
  • 100/100

    Lighthouse, every site we ship

    Bearing loads in 0.6s. Google's threshold for a good Largest Contentful Paint is 2.5s.

    See the numbers →
  • 39,268

    Drivers indexed in two weeks

    Racer DB covers 153 series and 1,612 circuits, with a rating that holds up when a driver moves between them. Built from nothing in a fortnight.

    What shipped →

Selected work

What we’ve shipped.

Proprietary AI analytics infrastructure that deploys with every engagement. A measurement fix and a booking funnel for a one-truck mobile detailer. A reference database indexing 39,268 drivers. A real sim racing team shipped as a working arcade game. The range is the point.

Proprietary AI infrastructure

We built our own analytics. Every engagement gets it.

Bearing reads a client's numbers, writes the sentence an analyst would write, then ranks what to do next. Measurement, interpretation, recommendation. On the first client site it ran on it caught a conversion bug that hosted analytics tools are structurally unable to see. Live at bearing.sidecar.services.

Read the case study →

Small business growth

One change. Bookings per visitor up 73%.

Z's Auto Detailing, a one-truck mobile detailer in Grand Blanc. We put booking buttons on the header and every package, and his bookings per visitor went from 3.7% to 6.4% and held there six weeks later. Getting a number we could trust meant fixing his analytics first: two buttons shared a label, so booking starts were being counted as completed bookings.

Read the case study →

Reference product

39,268 drivers, 153 series, two weeks.

Racer DB indexes race results across 153 series and rates every driver on one scale that survives them moving between series. Win totals don't travel between paddocks; ordered finishes against known opponents do. Built from nothing to live in a fortnight. racer-db.com.

Read the case study →

Sim racing

A real sim racing team, shipped as a working arcade game.

A real sim racing team didn't want a Squarespace template. We shipped a playable browser racer faithful to the 2000-era Woody Woodpecker Racing titles, with a persistent leaderboard whose top score belongs to one of the team's own drivers. Built for fun, shipped with the same engineering discipline as anything we ship for clients. Loads immediately. Live at woodpeckerracing.com.

Read the case study →
More case studies forthcoming. Performance overhaul, developer experience, advisory. All work →
We don’t write decks. We build the thing.

What we do

Where we attach.

  • 01

    AI strategy & implementation

    Audit how your company is and isn’t using AI. Recommendation, then implementation. We’ve built routing, recommendations, and personalization at scale, so we can tell you which AI moves the business and which is theater. We work on AI that makes strong teams sharper, not AI that replaces them. If the goal is reducing headcount, we’re not the right shop.

    Project · 6–12 wk
  • 02

    Growth & experimentation

    Experiments that test what they claim to test, read honestly. Sample size, power, confidence done right. If your test harness can’t tell you when to ship, we’ll fix it.

    Project · Retainer
  • 03

    Web performance & UX

    Core Web Vitals, real-user metrics, interaction work. Ship a faster site without rebuilding it. Most companies don’t realize what they’re missing until they see the before-and-after.

    Audit · Project
  • 04

    Developer experience

    Internal tooling, build systems, type discipline. The unsexy infrastructure that makes a ten-person team feel like a thirty-person one. Cheaper than hiring.

    Project · Advisory
  • 05

    Digital presence, brand & SEO

    Identity, site, CMS, search, content systems. Everything a design studio would do, as one of several things we do. Useful when the site is from 2019 and the brand looks smaller than the company is.

    Project
  • 06

    Advisory

    A staff engineer in your corner, by the month. Staff is the level where the work shifts from solving the problems someone hands you to finding the business problems no one has named yet, and solving those. For founders who don’t need a project but need someone to call when something is on fire.

    Retainer · Monthly

Testimonials.

  • VP Strategic Operations

    Cision

    “The combination of Randy's navigation of client-facing conversations, internal coordination in an international matrix org, and technical expertise is very rare to find.”
  • Staff Engineer

    AITASTIC (ex-Cision)

    “You can be certain Randy will become a valuable asset of any project he works on in record time.”
  • Group Engineering Manager

    Intuit Mailchimp

    “Deep technical judgment, and a commitment to building scaffolding that empowers the engineers around him to run fast.”

Contact

Got a problem worth doing right?

We take a small number of engagements at a time. If you’ve got something real (a system that needs rethinking, a strategy that needs operator judgment, a site that isn’t pulling its weight), send a paragraph or two about what’s going on.