/01
Systems Architecture
Distributed system design, event-driven topology, and capacity planning for systems that must remain available under adversarial conditions.
- · Event sourcing
- · Multi-region failover
- · Capacity modeling
AXION is a digital engineering studio building mission-critical systems for organizations operating at the edge of what's possible. We ship infrastructure that lasts decades, not quarters.
142
Systems shipped
/ 01 — Operating principles
These aren't aspirational values printed on a wall. They are operating constraints — the conditions under which we accept work, the standards we hold ourselves to, and the reasons our oldest client has been with us for nine years.
Every line item accounted for. We turn down work we cannot execute to a measurable standard, and we say so before the contract is signed.
One person owns the outcome from kickoff to post-launch. No handoffs to junior teams, no rotating account managers, no diffusion of responsibility.
We write code for someone we will never meet, in a decade we will not see. Documentation, tests, and architecture decisions are deliverables, not afterthoughts.
Every engagement begins with a written scope signed by both sides. If we cannot describe it in prose, we cannot build it in code.
Restraint is an engineering decision. We remove features, not add them. The smallest system that solves the problem is the one we ship.
No hourly billing, no scope creep, no surprise invoices. The number we quote at the start is the number you pay at the end.
/ 02 — About the studio
/ Manifesto
AXION operates as a closed-loop engineering practice. We do not chase trends or stockpile talent. Every engagement begins with a written brief, a fixed scope, and a single accountable engineer. We measure our work in decades, not quarters. The systems we ship today are designed to be maintained by someone we will never meet, in a decade we will not see. This is the only definition of engineering we accept.
AXION began as a two-person workshop above a printing press in Williamsburg. The first client was a quantitative hedge fund that needed a trading system rebuilt in eleven weeks. We shipped it in ten.
Eleven years later, we are thirty-eight engineers, designers, and researchers split between Brooklyn and Berlin. We have never raised outside capital. We have never grown faster than our ability to maintain quality. We intend to keep it that way.
Headquarters
Brooklyn, NY
12,000 sq ft · 2014
European Office
Berlin, DE
6,500 sq ft · 2019
Structure
Independent
Founder-owned
Engagement model
Fixed scope
No hourly billing
/ 03 — What we do
We do not sub-contract. Every discipline below is staffed in-house, on payroll, and held to the same written-brief standard.
/01
Distributed system design, event-driven topology, and capacity planning for systems that must remain available under adversarial conditions.
/02
End-to-end implementation of internal tools, customer-facing platforms, and operational dashboards. Shipped, documented, and handed off.
/03
Component libraries, documentation sites, and accessibility frameworks built to be maintained by teams of one after we leave.
/04
Kubernetes, observability, deployment pipelines. We build the platform your engineers want to deploy to, not the one they have to.
/05
Prototyping, benchmarking, and build-vs-buy analysis for technologies you are not yet sure about. We tell you what we would do, not what is popular.
/06
Standing retainers for leadership teams that need a second opinion on architecture, hiring, or vendor decisions from engineers who have shipped under pressure.
/ 04 — Selected work
Institutional trading platform · 14-week rebuild
Clinical operating system · 22-week build
Fleet telemetry network · 18-week rollout
Public records archive · 30-week build
Realtime DSP research · 6-week sprint
Grid monitoring system · 16-week build
/ 05 — Eleven years, in numbers
Systems shipped
000
Since 2014 · 87% still in production
Years in operation
00
Founder-owned · No outside capital
Engineers on staff
00
Brooklyn · Berlin · Fully in-house
Net promoter score
00
Industry average: 41
/ 06 — Client testimonials
We do not publish case studies without permission. The four quotes below are from clients who agreed to be named. Every quote is verbatim.
01 / 04
"AXION rebuilt our trading platform in fourteen weeks. The system has run uninterrupted for nineteen months since. I have stopped checking the dashboard — that is the highest praise I can offer."
David Chen
CTO · Meridian Capital
02 / 04
"They are the only firm I have worked with where the written brief at the start matched the delivered system at the end. Exactly. No drift, no scope creep, no surprise add-ons."
Sarah Whitfield
VP Engineering · Helios Health
03 / 04
"We hired AXION for an advisory engagement. They spent four weeks understanding our infrastructure, then told us not to build the thing we had asked them to build. They were right. We saved two years."
Marcus Ehlert
CEO · Northwind Logistics
04 / 04
"What distinguishes AXION is not their code — though their code is excellent. It is their refusal to start work until they understand exactly what you need. That discipline is rare and worth paying for."
Anya Petrov
Director · Caldera Energy
/ 07 — The team
The people below are the principal engineers who lead every engagement. Everyone else — thirty-four of them — is on the about page.
Founding Engineer
Started AXION in 2014. Sets the standard for written briefs. Refuses to ship code she would not maintain herself.
Principal Architect
Eleven years building distributed systems. Believes capacity planning is a moral act. Writes the architecture briefs.
Head of Design
Eight years in design systems. Holds the line on accessibility. Will reject a component that does not pass WCAG 2.2 AAA.
Infrastructure Lead
Runs the deployment pipeline. Has not caused a production outage in seven years. Maintains it that way on purpose.
/ Careers
We hire one engineer per quarter. No exceptions.
/ 08 — Frequently asked
If your question is not below, write to us directly. We answer every email within one business day, including the ones we decline.
We design, build, and ship digital systems — usually platforms, infrastructure, or internal tools — for organizations that need them to work without supervision. We do not do marketing websites, brand identity, or growth-hacking. We engineer systems that have to last.
Fixed scope, fixed price. We quote a single number at the start of the engagement after a one-week discovery phase. The number includes everything: architecture, implementation, documentation, handoff. If we go over budget, we absorb the cost. We have done this for eleven years.
Brooklyn and Berlin. We work across both offices simultaneously — most engagements are staffed with engineers from each. We do not have offshore contractors, and we do not subcontract. Everyone who touches your code is on our payroll.
Sometimes. We take on roughly two early-stage engagements per year — usually when the founding team has a written brief that demonstrates they understand the problem. We decline the rest. We are not a startup studio and we do not take equity; we bill for engineering work.
Eleven weeks, on average. The shortest was four weeks (an advisory sprint). The longest was thirty weeks (a full platform rebuild). We tell you the length before we sign the contract, and we hit it — we have shipped on time for ninety-four percent of engagements.
Public case studies are on the Work page. For confidential engagements — which is most of them — we share detailed references and architecture walkthroughs under NDA during the discovery week. We do not share client names without permission, and we never share code.
/ 09 — Start a conversation