Learn more about a CISO’s responsibilities and how to hire a CISO.
Jonathan Grana
Jersey City, NJ, USA
Sold company to Greenhouse, first mobile engineer at Compass, 3x founder
I'm a full-stack engineer with product, marketing, and sales experience. I was the co-founder and CEO of interseller.io (acquired in 2021). I have been a founder and CTO two other times. I created the first mobile app ever for real estate agents at Compass.
Currently building Go Fractional connecting companies with amazing fractional talent.
Open to Fractional CTO work and advising startups.
Testimonials
Jonathan provided a detailed audit of our tech stack with a prioritized list of recommendations while redesigning and launching our app to a new single codebase across all platforms in 4 months
Nick Kenner
Founder & CEO, Just SaladJohn is one of the few people that fundamentally understands engineering and sales and can create and ship amazing products he is great to work with, and can understand the needs of a client understand the technical architect needed and be in the weeds, writing code he can create teams. He can hire great engineers. He can create a great culture, and he can ship amazing products anyone would be lucky to work with him as a fractional CTO.
Eric Friedman
Head of Expa Labs, Expa
Work
Go Fractional
https://gofractional.comHire the best fractional talent in the world. We are a private network of exclusive fractional talent, ready to help you grow your business.
Recruiting talent, finding clients, and building the Go Fractional platform.
- https://keeta.com/
Keeta is a company that is building a global payments platform that safely teleports your money.
Built the entire marketing site for Keeta to pixel-perfect designs and animations created by Red Antler as a Fractional Engineer in less than 2 months.
Just Salad
https://apps.apple.com/us/app/just-salad/id777997825Just Salad is a chain of fast-casual restaurants with a mission to make everyday health and sustainability possible.
Built a redesigned mobile app for Android and iOS, and found designers to hire to fill gaps in designs. Audited the codebase and provided a roadmap for moving to modern architecture. Launched the new app on iOS and Android in less than 4 months.
Read more about how we helped Just Salad.
Humming Homes
https://humminghomes.com/Humming Homes is a platform that allows you to request reactive maintenance, proactive maintenance and home improvement projects, pay out vendors digitally, schedule appointments with service providers, track how much you spend, and chat with your dedicated Home Coordination Team.
Hired initial engineering team. Built initial product including the mobile app, admin for operations team, backend apis, and data pipelines. Scaled product to 100 homes.
Candid Clear Aligners
https://candidco.comTransform your smile, and your health, with Candid.
Led Growth and Revenue teams, building out great features including new product lines, insurance support, sales tax, dynamic landing pages and targeting.
Interseller
https://www.interseller.io/Interseller helps make contact with candidates by finding their email and sending email sequences. We raised from Expa and became profitable after a year.
I built the frontend and lead design for the marketing site, application, and chrome extension, hired the initial sales team, and led fundraising.
Interseller was acquired by Greenhouse in 2021.
- https://mashable.com/article/rex-app
Rex was a social recommendations platform filled with your favorite humans, their favorite things, and just enough technology to make it all hum. We raised capital from great partners like Lowercase Capital, Founder Collective, Binary Capital, alongside some very generous angels.
Redesigned mobile app, updated backend to support 100k daily active users, and launched at Sundance in 2017.
- https://apps.apple.com/us/app/compass-real-estate-homes/id692766504
One of the first engineers at Compass. Built the first-ever mobile app for agents at Compass in 2012. Agents are able to manage their leads, contacts, listings, and deals all from their phones.
Created several backend services, including collections, notifications, and deals.
Experience
Go Fractional
Co-Founder & CEO
Mar 2021 - Present
Hire the best fractional talent in the world. We are a private network of exclusive fractional talent, ready to help you grow your business.
- Help talent get paid while having time to build their own companies
- Partner with great startups: Polywork, Realm Home, Just Salad
- Created platform for talent to manage profiles
Humming Homes
Co-Founder & CTO
May 2020 - Feb 2021
Humming Homes is a technology and a service that empowers homeowners. By taking on end-to-end home maintenance, we guarantee you can rest assured knowing that your greatest asset is taken care of.
- Worked with Kevin Ryan and AlleyCorp
- Hired first several engineers
- Built initial product and launched to 100 homeowners
Candid
Director of Engineering
Jan 2019 - Apr 2020
At Candid, we’ve always put your health first—and now we’re offering our revolutionary clear aligners with even more doctor-directed care. Your journey to a healthier, more beautiful smile
- Built Growth and Revenue teams
- Modernized engineering processes
Interseller
Co-Founder & CEO
Sep 2016 - Aug 2018
Interseller is an outbound automation tool for recruiting teams to easily connect with new talent
- Acquired by Greenhouse in September 2021
- Built marketing site, web app and chrome extension
- Raised money from Expa (Garret Camp)
Rex Labs, Inc.
CTO
Aug 2015 - Aug 2016
A simple way to share recommendations with friends.
- Launched iOS app and became Apple's editor choice
- Hired initial engineering team
Compass
Senior Software Engineer
Jun 2013 - Aug 2015
Compass is a tech-enabled real estate brokerage helping everyone find their place in the world
- Launched first version of the agent app
- Led communication team building out features for agents
- Hired initial mobile team
Blog Posts
What is a CISO | 2025 Guide to Skills, Responsibilities, Salaries, & More 47 CIO Interview Questions (What To Look For + Red Flags) Explore top interview questions for Chief Information Officers (CIOs), how to prepare for a CIO interview, and tips for how to hire a fractional CIO.
47 CRO Interview Questions (What To Look For + Red Flags) Explore top interview questions for Chief Revenue Officers (CROs), how to prepare for a CRO interview, and tips for how to hire a fractional CRO.
Similar Members
Andy Mockler - Engineering
- Web Development
- Fractional CTO
- Fullstack
- Product
Product-Focused Engineer + Technical Leader
Jonathan Rhone - Fullstack
- Advisor
- Fractional CTO
- Leadership
- Backend
A decade inside early stage startups, largest exit $800M
