Careers — the one who signs

Be the name
on the release.

At Syntax the job has changed. Agents write the first draft, test it and document it. Our people do the part that matters: judging the intent, owning the architecture, reading every change for what it exposes — and signing every release. We hire people who want to be the one who signs.

Write to us → Try a review first ↓
Release recordAwaiting sign-off
  1. 01DraftAgentDone
  2. 02TestAgentDone
  3. 03DocumentAgentDone
  4. 04ReviewA personWaitingIntent · architecture · security
  5. 05Sign — review a change firstSignature line, emptyYou?

Hubs · Jersey (HQ) · Berlin · Nairobi · Windhoek · Cape Town · New York

A footprint of 14 cities on 6 continents

01 — Your first review

An agent wrote this.
Would you sign it?

Three changes, each drafted by an agent, each passing its own tests, each with a confident summary. Each hides one real flaw — the kind a strong engineer catches before production. Find the line, then decide.

Review desk · code review1 of 3

An agent wrote this. Would you sign it?

A code review exercise · or write to us directly

Open application ↓

Code review exercise · runs entirely in your browser · nothing is sent

02 — The work, now

The typing moved.
The judgement didn’t.

Agents draft, test and document. What’s left is the part that was always the job — four questions, asked of every change.

  1. 01

    Intent

    Is this what the client actually needs?

    Agents do exactly what they’re asked. Someone has to sit with the people who run the process, work out what the change is for, and decide what it must never do.

  2. 02

    Architecture

    Will it still be right in three years?

    An agent optimises the change in front of it. We own the shape of the whole system: its boundaries, its data, the ways it can fail.

  3. 03

    Security

    Who else can reach this?

    Every change is read for what it exposes, not only for what it does. We have helped clients to ISO 27001 and SOC 2, and that work starts in review.

  4. 04

    Sign-off

    Does it ship?

    A release doesn’t go out until a named senior engineer has approved it. That isn’t a policy on a page. It’s a step in the pipeline that can’t be skipped.

About ten years of building our own systems and AI engines — for build speed, performance, interfaces, QA and security. All of it so our people spend their days on those four questions.

03 — Disciplines

Disciplines
we hire for.

Not a list of live vacancies: the kinds of people we look for. If yours is here, tell us what you’ve built.

  1. Senior software engineers — write to us

    Own the architecture, the code review and the release. The signature on every release is one of yours.

    Architecture · review · release

  2. Prompt engineers — write to us

    Write the instructions agents work from, give them the right context, and measure what comes back.

    Instructions · context · evals

  3. QA & test engineers — write to us

    Own the automated suites and the human pass: the test the agent didn’t think to write.

    Automated suites · the human pass

  4. Security engineers — write to us

    Read every change for what it exposes, and help clients through ISO 27001 and SOC 2.

    Threat review · access · evidence

  5. Product designers — write to us

    Interfaces for systems people use all day, in industries where a confusing screen is a risk.

    Flows · interfaces · prototypes

  6. Delivery leads — write to us

    Own scope, sequence and saying no, and put a working prototype in front of a client within the week.

    Scope · sequence · saying no

  7. Data & ML engineers — write to us

    Build the pipelines and models behind our own AI engines, and prove when a smaller model will do.

    Pipelines · models · evaluation

04 — Where we work

Six hubs.
Three continents.

Europe, Africa and North America — and a footprint of 14 cities on 6 continents.

  • JerseyHeadquarters · St Helier--:-- local
  • BerlinGermany--:-- local
  • NairobiKenya--:-- local
  • WindhoekNamibia--:-- local
  • Cape TownSouth Africa--:-- local
  • New YorkUnited States · Eastern--:-- local

A footprint of 14 cities on 6 continents

Jersey  London  Berlin  Toronto  New York  Dubai  Accra  Lagos  Nairobi  Singapore  Windhoek  Cape Town  Buenos Aires  Sydney

05 — Open application

Spotted it?
Write to us.

No portal and no CV upload. Send a short note here, or to contact@synt.ax with the subject “Careers — your discipline”. Link your work rather than attaching it.

We read every message.

Your discipline

Your note · to contact@synt.axNot sent

To
contact@synt.ax
Subject
Careers — Open application
  1. 01

    Something you built or reviewed — and the decision in it you’d still defend.

  2. 02

    Links — code, writing, a product, a talk: whatever shows your judgement best. Paste the URLs; there is no file upload.

  3. 03

    Where you’re based — and which discipline is yours.

Your details and note

Links to your work go in the note: portfolio, repositories, writing. Attachments are not accepted.

Sent to Syntax at contact@synt.ax through Cloudflare’s email service, with the discipline you picked. We use it to consider and reply to your application; the website sends nothing to your address. Privacy & data

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Syntax Ltd · 3 Mulcaster Street, St Helier, Jersey · Registered in Jersey, no. 123238