Skip to content
3toggles Contact

Access an elite network of experienced engineers. Every toggle locked on.

Fast. Cheap. Good. You're told to pick two. We deliver all three: experienced engineers work directly on your problem, while automation ( An automation tool that connects apps and runs multi-step workflows, so routine tasks happen without anyone clicking through them by hand. workflows and custom AI agents) absorbs the busywork. No agency in the middle, no markup.

Go ahead, try to switch one off. You can't.

FAST

Built to load fast, everywhere

CHEAP

AI handles the busywork, so you skip the agency markup

GOOD

Only experienced engineers touch your code

These switches are sealed by design. That's the whole point.

100/100
Google's headline speed and stability scores for a page: how fast it loads, how quickly it reacts, and how steady the layout stays. , by design
0 layers
of agency overhead
1:1
direct with your engineer

The paradox, resolved

“Fast, cheap, good: pick two” was never a law of physics. It was a law of staffing.

Agencies priced the trade-off because every hour of experienced judgement had to be paid for with an hour of an experienced engineer's time. So they padded teams with extra layers, project managers, and margin, then passed the cost to you as a forced choice. 3toggles removed the staffing constraint, and the triangle collapsed with it. The trade-off was an artefact of the old delivery model, not of engineering.

01

n8n orchestration

Process becomes infrastructure.

The coordination tax (handoffs, status syncs, ticket shuffling) runs as deterministic n8n workflows instead of billable meetings. Throughput stops depending on how many people are in the room. The overhead doesn't vanish; it's automated, not billed.

02

Custom AI agents

Experienced judgement scales.

Purpose-built agents absorb the high-volume, low-ambiguity work (parsing, validation, scaffolding, regression checks) under experienced supervision. Expensive hours land only on the decisions that actually need them.

03

A lean, experienced network

There is no layer to pay for.

Autonomous experienced engineers work with you directly. No bench to subsidise, no account managers, no markup dressed up as a 'team'. You pay for engineering, not for the building it used to sit in.

Fast, because the repeatable work is automated where it should be. Cheap, because you stop paying for the layers between you and the code. Good, because only experienced engineers ever touch it. Three toggles. All three stay on.

What we build

Experienced engineers for the whole stack. From sensors and firmware up to AI-ready web.

Web that loads instantly and gets cited by AI

Static-first Astro builds tuned for 100/100 Core Web Vitals and Generative Engine Optimization. Fast for people, quotable for AI search, so you rank in classic search and show up in AI answers.

Astro Core Web Vitals GEO Static-first

Card payments that actually settle

Production card-present and online checkout, shipped for real merchants: 3-D Secure authentication, multi-branch POS integrations, and gateway flows that reconcile to the cent. Real systems moving real money.

3-D Secure POS Checkout Reconciliation

Own your stack and cut the bill

Lean server and local-system solutions: self-hosting, containers, CI/CD pipelines, and right-sized infrastructure that drops cloud spend without dropping reliability. Cheaper to run, and yours to control.

Self-hosting Docker CI/CD Cost-efficient

From one workflow to fully autonomous systems

Custom n8n workflows and AI agents that connect your tools, feed your ERP, and turn manual back-office steps into validated, hands-off pipelines. Scale from a single automation to autonomous, end-to-end systems. Less typing, fewer errors, faster results.

n8n AI agents ERP integration Autonomous systems

Real-world systems, down to the firmware

Embedded and low-level work most web shops can't touch: sensor integration, firmware, and device code that talks to physical hardware reliably. From the sensor on the floor to the dashboard in the browser.

Embedded Sensors / IoT Firmware Low-level

How it works

Three steps from problem to production. No one stands between you and the engineer.

  1. 01

    Discovery

    An experienced engineer, not a salesperson, scopes the real problem. You leave the first conversation with a concrete plan and a fixed shape of work, before any commitment.

    No sales funnel. No discovery 'package'.

  2. 02

    Experienced engineer matching

    We match you directly to a vetted experienced engineer whose stack and domain fit your build. The person who scoped it is the person who ships it. No rotating team, no hand-off.

    One engineer. Yours.

  3. 03

    Zero-risk delivery

    You collaborate with your engineer directly, in the open, with validated milestones. Bypass agency bureaucracy entirely and watch the system get built by the hands that designed it.

    Direct. Documented. Reversible.

Engineering case studies

Proof, not adjectives. Production problems, broken down.

Client details kept confidential. The architecture and the outcomes are real.

Payments 3-D Secure Enterprise POS

Resolving 3-D Secure layers & hash-mismatch failures in multi-branch enterprise POS integrations

Problem

Across a multi-branch POS estate, each terminal serialized payment fields in a slightly different order before signing the request. Under strict 3-D Secure rules the signature must match exactly, so that ordering drift produced intermittent hash mismatches: transactions were silently declined and settlement reconciliation slowly fell out of balance.

Approach

We made the signature deterministic. Every field is canonicalized into one fixed order and normalized for case before it is hashed with HMAC-SHA512, so no single terminal can desynchronize the gateway. The drift was surfaced by automated settlement-exception alerts, and the fix rolled out across every terminal without downtime.

The extra bank-verification step (like a one-time code) that confirms an online card payment is genuine. A cryptographic signature that proves a payment message wasn't tampered with in transit, using a shared secret key. Field canonicalization Case normalization
Read the full breakdown
0
hash-mismatch declines
100%
settlement reconciliation
All
branches in sync
Web Performance Core Web Vitals GEO

Rebuilding a slow, AI-invisible marketing site into a static-first platform that scores 100/100 and gets cited by AI

Problem

The site ran on a heavy client-rendered stack. It loaded slowly on real devices, failed Core Web Vitals in the field, and was effectively invisible to AI answer engines: nothing on the page was structured for a machine to read, trust, or quote. Traffic was flat and the brand never surfaced in AI-generated answers.

Approach

We rebuilt it static-first on Astro, shipping almost no JavaScript by default and tuning the critical path so the largest content paints quickly and the layout never shifts. Then we structured the content for Generative Engine Optimization: answer-first sections, named entities, JSON-LD describing the business, and a machine-readable summary, so AI engines can extract and cite it rather than skip past it.

Astro static-first Google's headline speed and stability scores for a page: how fast it loads, how quickly it reacts, and how steady the layout stays. A Core Web Vitals metric for how quickly a page visibly responds after a user taps, clicks, or types. Generative Engine Optimization: making a site easy for AI search tools (ChatGPT, Perplexity, Gemini) to read, trust, and cite in their answers. A structured-data format that describes a page's meaning to search and AI engines, so they can index and cite it accurately.
Read the full breakdown
100/100
Core Web Vitals
Sub-1s
largest paint on mobile
Cited
in AI answers
See all case studies

How we engineer

Principles that hold under load. Defaults, not slogans.

Secure by default

No exposed endpoints, server-side validation on everything, 3-D Secure on payments, secrets scoped to least privilege, and Designing an operation so running it twice has the same effect as running it once, which makes retries safe in payments and pipelines. operations so a retry never double-charges or duplicates data.

Tested and continuously delivered

Automated tests on every change, infrastructure defined as code, and a Continuous Integration and Delivery: an automated pipeline that tests every change and ships it to production safely, with no manual steps. pipeline that ships in small, reversible steps. Releasing often stays low-risk because nothing reaches production unvalidated.

Observable in production

Logging, metrics, and Logs, metrics, and alerts that let engineers see what a live system is doing and catch problems before users notice. mean a broken system surfaces in minutes, not at month-end. We catch the problem before your users do.

Cost-disciplined

Static-first web on cheap CDNs, Running software on infrastructure you control instead of a rented managed service, usually to cut cost and own your data. and containers over pricey managed services where it fits, and right-sized infrastructure with no idle spend. You pay for what you use.

Read the full engineering deep-dive

Writing

Notes from the work. Field-tested, answer-first.

Read all notes

Questions, answered

How three toggles stay on at once

How can 3toggles deliver fast, cheap, and good at the same time?

We remove the cost centre that forced the trade-off in the first place: agency overhead. A lean network of autonomous experienced engineers works directly with the client, while n8n orchestration and custom AI agents absorb the repetitive, low-judgement work. Experienced people spend their time only on decisions that need experienced judgement, which is what makes fast, affordable, and high-quality possible simultaneously.

How does 3toggles pricing work?

Pricing is direct and project-scoped. Because there is no agency layer padding the bill, you pay for experienced engineering time and the automation that multiplies it, not for account managers, sales staff, or office overhead. Each engagement is scoped during Discovery before any commitment.

How are engineers matched to my project?

Every project is matched to a vetted experienced engineer whose stack and domain fit your problem. There is no hand-off and no rotating team: the engineer who scopes your project during Discovery is the one who builds it, and you collaborate with them directly throughout delivery.

Is my payment and data integration handled securely?

Yes. Our payment work includes hardened 3-D Secure flows and multi-branch enterprise POS integrations, and our automation pipelines validate every record before it reaches production. Public-facing forms never expose webhooks or third-party endpoints in client-side code, which prevents network-tab scraping and bot abuse.

What technologies does 3toggles specialise in?

Our competencies span the whole stack: static-first web engineering with Astro tuned for 100/100 Core Web Vitals and Generative Engine Optimization (being found and cited by AI search engines); production payment and card-sales systems including 3-D Secure and multi-branch enterprise POS; lean server, self-hosting, and DevOps work (containers, CI/CD, right-sized infrastructure) that keeps running costs low; automation with n8n, custom large-language-model agents, and ERP integrations that turn manual back-office work into validated, autonomous pipelines; and embedded, IoT, and low-level systems including sensor integration and firmware.

How do you keep our systems and payments secure?

Security is built in, not bolted on. Payments use 3-D Secure authentication and HMAC-signed requests; every record is validated server-side before it is trusted; secrets are scoped to least privilege and never shipped to the browser; and operations are made idempotent so retries can't double-charge or duplicate data. Public forms expose no webhooks or third-party endpoints in client-side code.

What do your testing and deployment look like?

Every change runs through an automated CI/CD pipeline: tests run on each commit, infrastructure is defined as code for reproducible environments, and releases roll out in stages with fast rollbacks. Nothing reaches production without passing validation, so shipping often stays low-risk.

How do you keep hosting and running costs low?

We default to lean, cost-disciplined infrastructure: static-first web that runs on cheap CDNs, self-hosting and containers instead of pricey managed services where it makes sense, and right-sized servers with no idle capacity. You pay for what you actually use, not for convenience markups.

How do you make automations reliable enough for production?

Automations are engineered, not duct-taped. Each record is checked against a strict schema, operations are idempotent, failed steps retry automatically, and anything still ambiguous is routed to human review instead of guessed. Observability and alerting mean a broken pipeline is caught immediately, not days later.

Where is 3toggles based and who can you work with?

3toggles is a fully distributed, global network and works with clients worldwide. Engagements are remote-first and matched across time zones, so location is never a constraint on accessing experienced engineering talent.

Get in touch

Tell us the roadblock. We'll route it to the right experienced engineer.

No sales funnel, no chatbot, no data sold onward. Your request enters the network directly and an engineer, not an account manager, connects with you.

  • Direct line to an experienced engineer
  • No exposed endpoints, spam-hardened by design
  • Scoped reply, not a templated brochure

An experienced engineer, not a salesperson, replies within 24 hours.

What do you need? (optional)

Pick any that fit, or just tell us below.

Captured securely via Netlify. No third-party endpoint is exposed.