Demo

Staff Software Engineer

Fionics
York, NY Full Time
POSTED ON 7/23/2026 CLOSED ON 8/1/2026

What are the responsibilities and job description for the Staff Software Engineer position at Fionics?

Most "AI for X" startups are chasing markets that don't have money. This one runs a multi-hundred-billion-dollar industry that quietly keeps America's homes working.


A fast-growing NYC AI startup is hiring a Staff Product Engineer to own product surfaces end-to-end as the firm scales from real product-market fit into hypergrowth.


Why this seat is rare


The equity story. Cash-flow positive. Meaningful ARR after 18 months. A massive industry with no serious software incumbent. Staff hires at this exact inflection point are how generational wealth gets built — and the equity package is sized to reflect it.


Greenfield product. The surface for the next phase is still wide open. You'd define it. In 12 months, the core product is set.


Direct line from code to ARR. Small team, in-person customer onboarding, real feedback within days of shipping. You'll see your work move the number in real time.


Talent density. Founding team has lived the industry. The engineering bench is the kind of names you'd expect at a top-five startup in NYC.


Who they're looking for

A staff-level product engineer with 7 years shipping customer-facing products end-to-end. 0→1 track record at real scale — ideally as a founding or early engineer. Battle-tested with production AI/ML. Sharp product instincts and the judgment to know when to ship.


If you've been waiting for a startup with real revenue, a real market, and equity that could genuinely change your life — get in touch.

Salary.com Estimation for Staff Software Engineer in York, NY
$97,341 to $118,435
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Staff Software Engineer?

Sign up to receive alerts about other jobs on the Staff Software Engineer career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$97,257 - $120,701
Income Estimation: 
$123,167 - $152,295
Income Estimation: 
$86,835 - $106,101
Income Estimation: 
$110,316 - $137,631
This job has expired.
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at Fionics

  • Fionics York, NY
  • Trader/Researcher, Crypto Stat Arb Remote One of the fastest-growing systematic crypto shops around is looking for a traders and researchers to run their o... more
  • 2 Days Ago

  • Fionics York, NY
  • Senior C Engineer, Core Engineering Lead New York (on-site) A crypto-native prop firm hiring a senior C engineer to lead its core engineering group. Hands-... more
  • 2 Days Ago

  • Fionics Chicago, IL
  • ▸ Company : Rapidly expanding, options-focused prop firm with a strong payout structure and top-tier trading tools, offering a dynamic environment similar ... more
  • 3 Days Ago

  • Fionics York, NY
  • Ready to leave the institutional giants behind? We're building the next generation of high-growth quant trading firms and systematic hedge funds. If you wa... more
  • 3 Days Ago


Not the job you're looking for? Here are some other Staff Software Engineer jobs in the York, NY area that may be a better fit.

  • kadence York, NY
  • What You’ll Be Doing Build and scale backend services and APIs for a document-focused platform Write performant server-side code and data pipelines Define ... more
  • 5 Days Ago

  • Addition York, NY
  • Overview At Addition Wealth, we’re on a mission to redefine financial health by making personalized financial expertise inclusive and accessible to everyon... more
  • 14 Days Ago

AI Assistant is available now!

Feel free to start your new journey!