Login & session management
Secure sign-up, sign-in and session handling with correct password storage, token expiry and revocation.
Backend Development · AI-First · Results-Driven
Authentication &Access Control, Done Right
Short answer: Authentication is how your backend proves who a user is (login, tokens, SSO, MFA); access control is what that user is then allowed to do (roles and permissions). Getting both right is a security requirement, not a feature — weak auth is one of the most common ways applications get breached. We build secure login, roles, permissions, SSO and multi-factor authentication for your customers and your staff, using proven standards like OAuth2, OIDC and SAML instead of hand-rolled shortcuts.
Authentication & Access Control That Keeps Data Safe
Authentication answers 'who is this?' — the login, password handling, tokens, social sign-in and multi-factor prompts that verify a user. Access control answers 'what are they allowed to do?' — the roles and permissions that decide which data and actions each user can reach. Every application that stores anything private needs both, and they are among the highest-stakes parts of a backend, because a mistake here doesn't slow the product down, it exposes your users' data.
The decisions that matter are which standard you build on and how you model permissions. Proven protocols — OAuth2, OpenID Connect, SAML — and vetted providers like Auth0 or Cognito handle the parts that are easy to get dangerously wrong: password storage, token expiry, session revocation. On top of that sits your permission model: role-based or attribute-based access that has to be enforced on the server for every request, not just hidden in the UI. The common failures are storing passwords or tokens badly, checking permissions only on the frontend, and SSO that silently grants too much.
We build auth on standards and battle-tested libraries rather than custom crypto, enforce every permission server-side, and add MFA, passwordless and SSO where they fit your users and staff. You get login and access control that passes a security review and that your team can extend as new roles and integrations appear.
What we cover
What We Build in Authentication & Access Control
Roles & permissions (RBAC/ABAC)
Role- or attribute-based access enforced on the server for every request, not just hidden in the UI.
Single sign-on (SSO)
SAML and OIDC single sign-on so users and staff log in once with Google, Microsoft or your IdP.
Multi-factor & passwordless
TOTP apps, SMS, magic links and passkeys (WebAuthn) to stop credential-stuffing and phishing.
Token & API authentication
OAuth2/JWT for apps and API keys or service tokens for machine-to-machine access.
Audit logs & security hardening
Login auditing, rate limiting, lockout and a review of an existing auth setup for gaps.
Services
Authentication & Access Control Services
From a first secure login to enterprise SSO and fine-grained permissions — built on standards, enforced on the server.
Auth system build
Complete authentication for a new product — sign-up, login, sessions and password reset done securely.
SSO integration
Add SAML or OIDC single sign-on so customers or staff log in with their existing identity provider.
Move to a managed provider
Migrate custom auth to Auth0, AWS Cognito or Okta, or between providers, without locking users out.
Roles & permissions design
Model and implement RBAC or ABAC across your app, admin panel and APIs.
MFA & passwordless rollout
Add multi-factor authentication, magic links or passkeys to an existing login flow.
Auth security audit
Review your current authentication and access control for token, session and permission weaknesses.
Tools & platforms
The Auth Stack We Build With
The exact toolset depends on your goals — these are the platforms we use most, and we work with whatever your team already relies on.
Protocols & Standards
Identity Providers
MFA & Passwordless
WebAuthn / passkeysTOTP (authenticator apps)magic linksSMS OTP
Sessions & Secrets
Redis sessionsHashiCorp VaultAWS KMSbcrypt / Argon2
Chosen per project — not a fixed menu. Have a preferred tool or platform? We’ll work with it.
Built to last
Secure, Accessible & Built to Last
We build on modern, well-supported frameworks with security and accessibility baked in — dependency hygiene, input validation, HTTPS and WCAG-minded UI — so your product is safe and usable from day one.
You own all the code and assets. Everything ships with documentation and a clean handover, so your team (or ours) can maintain and extend it without lock-in.
Who we work with
Industries We Build For
20+ years across sectors — in Houston and internationally.
Transparent pricing
Estimate your project in seconds
Pick what you’re building for an indicative range, then request an exact quote. No email wall.
Simple prices for typical tasks
- API buildfrom $8k
- Backend + DBfrom $15k
- Integrationsfrom $10k
- Care planfrom $800/mo
Proof
700+ projects, 20+ years
See the products and growth work we’ve shipped across industries — and request a case study relevant to yours.
How we work
Fixed scope. Sprints. Working software.
- 01
Scope & fixed estimate
A short discovery call turns your idea into a clear spec and a firm range — free.
- 02
Design & architecture
UX, data model and stack chosen for your scale, not ours.
- 03
Build in sprints
Working software every 1–2 weeks — you see progress, not promises.
- 04
Launch & scale
We ship, measure and keep improving with care plans.
FAQ
Authentication & Access Control questions
How much does authentication and access control cost?
A secure login and basic roles typically start around $6,000, while enterprise SSO plus fine-grained permissions and MFA can run $25,000 or more. Cost depends on how many roles you need, whether SSO and MFA are required, and how many systems enforce access — use the estimator, then book a free call for a firm quote.
What is the difference between authentication and authorization?
Authentication verifies who a user is — login, tokens, SSO, MFA. Authorization (access control) decides what that verified user is allowed to do — the roles and permissions that gate data and actions. You need both: proving identity is useless if everyone then has access to everything.
How long does it take to build authentication?
A secure login with roles usually ships in 2–4 weeks; adding SSO, MFA and a full permission model runs 4–8 weeks. We build on proven providers and libraries, which is faster and far safer than writing auth from scratch.
Should we build auth ourselves or use a provider like Auth0?
For most teams a managed provider (Auth0, Cognito, Okta) is the safer choice — it handles password storage, token security and compliance that are easy to get dangerously wrong. We build custom auth only when you have a specific reason, and even then on vetted libraries, never hand-rolled crypto.
Can you add SSO for our enterprise customers?
Yes. We implement SAML and OIDC single sign-on so your enterprise customers log in with their own identity provider (Okta, Entra ID, Google), including provisioning with SCIM where needed — a common requirement to close larger deals.
Can you add login to an existing app?
Yes. We add or replace authentication on an existing website, SPA or mobile app, migrating current users where possible so no one has to re-register, and layering in MFA or SSO without a rebuild.
Do you support multi-factor authentication and passkeys?
Yes. We add MFA via authenticator apps (TOTP), SMS or email, and passwordless options like magic links and passkeys (WebAuthn), which stop most credential-stuffing and phishing attacks.
Do you build auth for clients outside Houston?
Yes. We're based in Houston, TX and deliver authentication and access-control work to clients nationwide and internationally — across 20+ years we've delivered 700+ projects for local and remote teams alike.
Get started with secure auth
Book a free consultation — we'll scope your login and access needs and give you an honest range.
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