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Careers

Build the AI that runs real businesses

Most “AI companies” ship demos. We ship the AI that answers real phones, books real jobs and chases real invoices - in production, for thousands of businesses, right now. If you want the hardest, most rewarding work of your career, this is the room.

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Why Syntra

A small team doing the best work of their lives

01

Small team, outsized impact

No layers, no theatre, no “let’s circle back.” You own real surface area from week one and watch your work go live - often the same day - in front of businesses who feel the difference immediately.

02

Genuinely hard problems

Sub-second voice that can’t stutter. Agents that can’t hallucinate. Systems that can’t go down. If you want work that stretches you, it’s here, and it’s in production, not a slide deck.

03

Remote, senior, trusted

We hire people we don’t have to manage. Work from wherever you do your best thinking, on your own rhythm, judged on what you ship - not hours logged or meetings attended.

The perks

Unusual perks, on purpose

We build a company we’d want to work at. Here’s some of what that looks like.

We automate your busywork too

We sell business owners their time back for a living. Internally we mean it - if a task you do every week is repetitive, we build you a bot for it.

Unlimited AI & compute

Every model, every tool, real API budgets. You will never hear “we can’t afford those tokens.”

Founder’s stipend

A budget and a free Syntra licence to run your own side business on the platform. The best dogfooding there is, and it’s yours to keep.

Deep work is sacred

No-meeting maker weeks. We guard focus like it’s the product - because it kind of is.

Best gear, zero forms

Pick your machine and your stack. It just shows up.

Somewhere unreasonable

The whole team, offline, somewhere memorable, once a year.

Real ownership

Meaningful equity. You’re building the company, not renting a seat.

Time-back leave

A generous floor of paid time off. A company that sells time shouldn’t hoard yours.

Open roles

Three roles. All remote.

Every role is fully remote, with very competitive pay and meaningful equity.

Voice Agent Architect

RemoteEngineeringVery competitive
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Own the voice - the real-time system that answers the phone and holds a genuinely human conversation, at a latency most teams consider impossible. It is the most demanding surface we run, and it is yours end to end.

What you’ll do

  • Architect the entire real-time conversational pipeline - every millisecond between a person speaking and the system responding is yours to own, measure, and defend.
  • Solve what makes live voice hard: natural turn-taking, interruption, timing and graceful recovery - made to feel effortless at scale.
  • Push our latency, reliability and unit-cost envelopes well past where the rest of the industry has settled.
  • Design the connective layer that lets a live conversation take real, consequential action - safely, instantly, every single time.

You’ll thrive here if

  • Deep experience building low-latency, real-time systems where milliseconds are the product, not a metric.
  • A relentless production mindset - this rings at 2am, in the real world, and it does not get to break.
  • You are drawn to problems most engineers call impossible, and you have quietly shipped a few of them before.

LLM Trainer

RemoteAI / AppliedVery competitive
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Own how the intelligence thinks. A single agent runs entire businesses across wildly different industries - you make it sharp, reliable, and impossible to trip up, without it ever inventing a word.

What you’ll do

  • Shape the reasoning, behaviour and boundaries of a production agent trusted with real customers and real money.
  • Build the evaluation machinery that turns “it seems fine” into proof, and close the loop from live interactions at scale.
  • Drive hallucination, drift and failure toward zero, and keep them there as the system grows more capable.
  • Decide where and how the intelligence should be reshaped for quality, cost and control - then make it happen.

You’ll thrive here if

  • You have taken real language-model systems into production, not just prompted them in a notebook.
  • A rigorous, data-driven instinct paired with unusually precise writing and reasoning.
  • You probe model behaviour the way a security researcher probes an attack surface - comprehensively, adversarially, relentlessly.

Sales Development Rep

RemoteGrowthVery competitive
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Sell the system that will one day do your job better than anyone. You are the first human a prospective business meets, and you will run your own pipeline on the very platform you are selling.

What you’ll do

  • Own the top of the funnel end to end: find the right businesses, earn the conversation, and book demos that convert.
  • Learn entire industries cold and speak to owners as if you have run their business yourself.
  • Work directly alongside the founders, turning every conversation on the front line into product intelligence.
  • Operate at a pace and standard that sets the tone for how Syntra goes to market.

You’ll thrive here if

  • Hunger, resilience, and communication sharp enough to open any door - in writing and on a call.
  • Genuine curiosity about how real businesses run, and what actually makes an owner say yes.
  • Self-direction and coachability in equal measure. Prior sales is welcome; the instinct matters more.

Ready to build?

Hit apply and our agent will tell you exactly where to send your CV. Don’t see your exact role? Reach out anyway - great people make their own seat.

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