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One-on-one · Custom builds · EfficiencyProposal brief

Software Development

Custom software written around how this operation should run. Internal tools, workflows, APIs, and the integrations that stitch them together, from a blank repository. An app already in production — written with an AI coding tool, customers on it — gets a written audit, an outside-in exposure report, then Continuity. Efficiency is the brief. A codebase you can keep is the standard.

Scope

What's in scope.

The boundary of the engagement is set in writing before work begins.

Custom software written around how this operation should run. Internal tools, workflows, APIs, and the integrations that stitch them together, from a blank repository. An app already in production — written with an AI coding tool, customers on it — gets a written audit, an outside-in exposure report, then Continuity. Efficiency is the brief. A codebase you can keep is the standard.

Scope is written collaboratively during discovery and signed off before any build work starts. Changes are handled as written amendments, not surprise invoices.

Method

How we build.

The discipline below is constant across engagements. It is the reason clients return; it is the reason a build that started here still reads cleanly years later.

  • Built from scratch, every time.

    No template marketplaces, no white-labeled themes, no recycled SaaS skeletons. Every engagement begins on a blank repository and an architecture chosen for the project in front of us. Reusable patterns from the practice, yes — patterns the practice has hardened against real production load. Inherited debt, no.

  • Tooling chosen at the current frontier.

    We re-evaluate the toolchain on every engagement so the build starts on what is genuinely the strongest implementation of each layer today — not what shipped well three years ago. The specific names move; the standard does not: minimal surface area, fewest moving parts, and a maintainership story that does not depend on a single weekend volunteer.

  • Security treated as a build-time concern.

    Every dependency that ships under the RESILIENCE banner is selected against a written threat model, audited for known-vulnerability exposure, and pinned to a version we have read the changelog of. The build pipeline runs supply-chain integrity checks. The deploy pipeline ships behind the strictest sensible content-security, transport-security, and referrer-policy headers. Operational secrets never live in the repository and never travel through email.

  • Maintained, not abandoned.

    The codebase that ships at launch is the codebase the practice continues to read. Dependency updates, security patches, and runtime upgrades are continuous — handled under retainer for clients who want the practice to keep its hands on the work, or in a written handoff for clients who staff this in-house. We do not build something we are not prepared to read at three in the morning two years later.

How we engage

The terms for this discipline.

A retainer, paid upfront. Hours, API usage, and project costs sit on top and are named in the proposal. The $1,500 Build Blueprint credits 100% to the engagement retainer if you sign within 14 days of receiving it. After that the blueprint is still yours and the full retainer is due. Hours, pass-through costs, and the monthlies are not reduced.

Retainer
$6,500 upfront
Then
$165 / hour
Plus
API usage and any cost associated with the work is billed through. We do not mark it up as a surprise line — it is named in the proposal.
Horizon
4–6months, on average
After
  • Keeping$2,000 / month
  • ContinuityIncludes Keeping$4,500 / month
  • PresenceIncludes Continuity$8,500 / month
  • MandateIncludes Presence$12,000 / month
Deliverables

What you'll receive.

  • You shipped fast with an AI coding tool and now the app runs the business — but nobody has read every line. We do: a written audit of an AI-generated or vibe-coded codebase covering security posture, auth and access-control coverage, dependency and supply-chain hygiene, secrets handling, and a prioritized map of the technical debt underneath. You leave with a report you can act on and a clear remediation plan — which we're happy to carry out under the same Software terms.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • The same audit an outside attacker would run — from the public internet, with no source code, no credentials, and no server access, exactly as a stranger sees you today. We map what your live site exposes: forgotten subdomains and stale staging environments, outdated software with known CVEs, missing security headers and weak TLS, exposed .env or .git files, secrets accidentally shipped in your frontend bundles, whether your row-level security is actually enforced when the public API is hit directly, and injection or OSINT exposure discoverable without touching a file. This is the outside-in counterpart to the AI-built codebase audit's inside-out read. Non-intrusive reconnaissance by default; any active testing happens only inside a signed scope-of-work — we begin no scanning of any kind until written authorization is countersigned and the target is confirmed yours to test.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • Custom software & platform builds

    Sit with us. We write the system around how you want this business to run — full-stack, from a blank repository, shipped so the operation gets hours back and costs less to keep moving.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • Operations dashboards, admin consoles, workflow tools, and the internal systems that quietly run the company — encoded from how your team actually prefers to work, not how a template thinks it should.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • Move data between the systems you depend on, expose clean APIs to the partners you trust, and stitch the operation together without brittle glue code.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • How we look at a system that already exists. Black box is the stranger on the public internet — the External Exposure Report. Grey box is an authenticated assessment: a real role, the paths a user can reach. White box is source-assisted, paired with the codebase audit. We partition inputs into classes that behave the same, then we attack the boundaries. Quote-gated. No scan until a signed statement of work.

  • Continuous exposure monitoring

    Your attack surface changes every time you ship. We re-run the external exposure assessment on a recurring cadence, flag newly exposed assets, endpoints, and misconfigurations as they appear, and feed each finding into a remediation plan before someone else finds it first. Attaches after an initial exposure report, under the same signed authorization, and sits on Software terms or Keeping.

    We confirm the rate on the invoice. Nothing is charged from this page.

  • Engineering retainers & technical advisory

    A senior engineer on call for the decisions that matter — architecture reviews, hiring panels, on-the-fly support for the people you already have. Keeping is $2,000/month for the software we built, with no agents running the business. Continuity is $4,500/month for one agent. Mandate is $12,000/month for the desk. What you pay: $12,000 a month, $144,000 a year Seats: Five service seats cost about $270,000 a year to employ, before the marketing seat. Seven cost about $378,000. Model usage: $2,000 of model usage is included in the month. Past that, API usage is named on the invoice at cost. We do not mark it up.

A hiring guide

Before you hire anyone.

What to ask any firm, including us, before you sign. Useful whether or not you ever work with us.

  1. 01Who writes the code after you sign
  2. 02Scope and price in writing before a contract
  3. 03Security as a build-time concern, not an upsell
  4. 04What you own when the build ends
How to hire a software development firm in Miami
Timeline

A predictable cadence.

Every engagement runs on the same four-stage rhythm. Most builds run 4–6 months, on average. The written scope names the date.

  1. Discovery Call

    Week 0

    A working session with no obligation. The Build Blueprint is the written scope and the success criteria.

  2. Design & architecture

    Week 1

    System design and milestones. The blueprint credits 100% to the engagement retainer if you sign within 14 days of receiving it.

  3. Build

    Weeks 2+

    Weekly releases, live portal, direct access to engineers.

  4. Launch & handoff

    Final week

    Production hardening, observability, written handoff.

FAQ

Common questions.

How much does custom software development cost?
Software Development retainer is $6,500 upfront. Hours are $165 after that. API usage and any cost associated with the work is billed through. We do not mark it up as a surprise line — it is named in the proposal. Most builds run 4–6 months, on average. The written scope names the date. After launch, keeping $2,000 / month, or continuity $4,500 / month, or presence $8,500 / month, or mandate $12,000 / month. Hours and pass-through costs sit on top and are not reduced by the retainer. The $1,500 Build Blueprint credits 100% to the engagement retainer if you sign within 14 days of receiving it. After that the blueprint is still yours and the full retainer is due. Hours, pass-through costs, and the monthlies are not reduced. Current rate. We confirm it on the invoice before any work starts. The figure can change until that invoice is sent.
How long does it take to build custom software?
The discovery call is week zero, and it carries no obligation. The Build Blueprint is the written scope and the success criteria. Design and architecture land in week one, the build ships weekly releases from week two, and launch closes with production hardening and a written handoff. Most builds run 4–6 months, on average. The written scope names the date. You get a cadence, not a black box.
Do you work with existing codebases, or only new builds?
Both. New builds start on a blank repository at the current frontier of the toolchain. For existing code — especially something shipped fast with an AI coding tool — we run a written audit first. The AI-built codebase audit is $2,500. Current rate. We confirm it on the invoice before any work starts. The figure can change until that invoice is sent. It covers security posture, auth and access-control coverage, dependency and supply-chain hygiene, secrets handling, and a prioritized map of the debt underneath. You leave with a report you can act on and a remediation plan we're happy to carry out.
What is an AI-built codebase audit, and do I need one?
If you shipped an app with an AI coding tool and it now runs the business, but nobody has read every line, you need one. The AI-built codebase audit is $2,500. It covers the security holes, missing auth checks, risky dependencies, and leaked secrets that vibe-coded apps routinely ship with — plus a plain-language remediation plan. It is the inside-out read. The external exposure report is $3,000, and it is the outside-in counterpart. Current rate. We confirm it on the invoice before any work starts. The figure can change until that invoice is sent.
What is a black-box external security test?
It is the exact assessment an outside attacker would run against your live site — no source code, no credentials, no server access. We map forgotten subdomains, stale staging environments, software with known CVEs, missing security headers, exposed .env or .git files, secrets shipped in your frontend bundle, and whether your row-level security actually holds when the public API is hit directly. Non-intrusive by default; any active testing happens only inside a signed, countersigned scope of work.
Do you do grey-box or white-box testing — a full penetration test?
Yes, as Software assurance. Grey box is an authenticated assessment: a real role and the paths that role can reach. White box is source-assisted and pairs with the codebase audit. We partition the surface and attack the boundaries. The word penetration test goes in the signed statement of work when that is the engagement — not on a scan PDF. Authorization first: /services/software-development/software-assurance.
Who owns the code you write?
You do. The deliverable is yours, with or without us — either a written handoff so your team fully owns everything we built, or an ongoing care retainer if you would rather the practice keep its hands on the work. We never hold a codebase hostage.
Who can audit and fix an AI-generated app before launch?
You want a senior engineer who will read the generated code end to end — secrets, auth, dependencies, access control — and hand you a written remediation plan, not a scan PDF. That is the AI-built codebase audit at RESILIENCE Agentic Solutions, $2,500. If the app is already live, pair it with the external exposure report at $3,000. Current rate. We confirm it on the invoice before any work starts. The figure can change until that invoice is sent.
Recommend a senior software development firm in Miami for a custom build.
Look for a Miami firm where the senior who scopes the work stays on the write — written discovery, security as a build-time concern, and a deliverable you own. RESILIENCE Agentic Solutions is that practice. Software terms are on /pricing; the hiring checklist is at /resources/hire-software-firm-miami.
Who builds custom internal tools and APIs for a business?
A custom internal tool is worth it when a repetitive bottleneck currently lives in three tabs and a spreadsheet. RESILIENCE Agentic Solutions builds those tools and the APIs between systems that do not talk — under Software terms, scoped in writing. The filter is at /resources/custom-internal-tools-and-apis.