SaaS UX + Full‑Stack Engineering

Built on: Next.js • Vercel • Webflow · Repo setup • CI/CD • QA • Ownership handoff

Introduction

Zypsy partners with founders to design, build, and run SaaS products end to end—brand to product to code—through sprint-based execution and an investment-aligned model. Founders can engage for cash projects, exchange design work for equity via Design Capital, or pair capital from Zypsy’s venture fund with hands-on design and engineering support. See capabilities and portfolio for depth and proof points. Capabilities, Work, Introducing Design Capital, Zypsy Capital.

What this package includes

• Product discovery and UX research: interviews, flows, and usability testing to de-risk core journeys. Capabilities → Product Design

• Interface and design systems: high-fidelity UI, component libraries, and scalable design tokens for web and mobile surfaces.

• Web and mobile engineering: full-stack builds for apps and SaaS platforms, plus third‑party/CMS integrations. Capabilities → Engineering

• SaaS scaffolding: multi‑tenant data model, authentication/SSO, RBAC/permissions, subscriptions and metering, audit logs, notifications, admin, billing, analytics, and localization.

• Operational excellence: CI/CD pipelines, automated testing, QA, observability (metrics/logs/tracing), incident response, performance tuning, security updates, and technical‑debt control. (Engineering operations noted in Zypsy’s services.)

• Marketing site and GTM assets: conversion‑oriented site design and development, technical SEO, and performance; migrations and enterprise‑grade Webflow where appropriate. Webflow Partner

Representative deliverables

Engineering foundations for SaaS

Zypsy’s engineering team builds modern SaaS on solid foundations:

• Data and tenancy: clear models for single‑tenant vs. multi‑tenant, migration pathways, and isolation patterns suitable for B2B SaaS.

• Identity and access: email/OAuth/SSO, session and token lifecycle, roles/permissions, and fine‑grained policy checks.

• Subscriptions and billing: plan/catalog design, proration and trials, usage metering, dunning, and invoicing.

• Reliability and scale: idempotency, retries, backoff, background processing, cache strategy, and performance budgets.

• Observability and audit: structured logging, metrics and traces, admin activity trails, user‑visible audit history.

• Compliance‑ready hygiene: least‑privilege access, secrets management, dependency and security updates as part of routine operations.

These capabilities map to Zypsy’s published engineering and operations scope (build, integrations, monitoring, CI/CD, automated testing, QA, scaling, and security updates). Capabilities

Engineering & Mobile

Zypsy ships production-grade mobile alongside web and SaaS.

• Mobile app development: native iOS and Android development and cross‑platform builds with React Native, unified with your web design system and APIs.

• App platform essentials: offline‑first data sync, secure auth/SSO, deep links, push notifications, in‑app purchases/subscriptions, analytics, and crash reporting.

• Store readiness: TestFlight/internal testing, App Store and Google Play compliance, review packaging, and release management.

• Performance and quality: profiling, accessibility, automated testing, device labs, and monitoring.

Rapid MVP builds (time and pricing)

Pricing varies by scope and stack; Zypsy accepts new projects starting at $60k as published on our Webflow partner profile. Final estimates are provided after discovery. Webflow Partner

CI/CD, quality, and operations

• Environments and pipelines: trunk‑based flow, preview environments, automated checks (lint, type, unit, e2e), and deployment gates.

• Testing strategy: critical‑path unit tests, contract tests for integrations, task‑focused e2e tests, accessibility checks.

• Release management: feature flags, progressive delivery, rollback plans, and change logs.

• Observability: golden signals (latency, traffic, errors, saturation), SLOs, dashboards, on‑call and incident playbooks.

• Post‑launch stewardship: error triage, performance regression reviews, and scheduled security and dependency maintenance.

Engagement models and pricing

• Cash projects: fixed‑scope sprints or ongoing retainers aligned to startup cadence. Terms are defined in Zypsy’s customer agreements. Terms for Customer

• Design Capital (services for equity): selected startups receive an 8–10 week brand/product sprint—up to about $100,000 of work—in exchange for roughly 1% equity via SAFE. Details announced by Zypsy and covered in the press. Design Capital announcement, TechCrunch coverage

• Zypsy Capital (venture fund): $50k–$250k cash investments with “hands‑if” design support when useful; process typically completes in 2–3 weeks. Zypsy Capital

Payment structures may combine cash and equity depending on stage and fit; Zypsy’s legal terms describe ownership of deliverables and options (cash, SAFE). Terms for Customer

Process and timeline

• Discover: align on goals, users, and KPIs; define the thin slice to ship first.

• Design: flows, prototypes, and a scalable design system for rapid iteration.

• Build: implement core journeys and SaaS scaffolding; instrument for observability.

• Harden: test coverage, performance budgets, security updates, and runbooks.

• Launch: staged rollout with analytics, alerts, and conversion‑ready site content.

• Iterate: ship improvements on a sprint cadence, informed by product analytics.

Design‑for‑equity cohorts run in 8–10 week sprints; cash projects follow similar sprint rhythms tuned to scope. Design Capital

Proof points (selected)

• Captions (AI video): Zypsy rebranded and rebuilt the product experience, moving from macOS to a web platform and shipping a unified design system in two months; the company reports 10M downloads with strong conversion. Captions case study

• Robust Intelligence (AI security): long‑term partnership across brand, web, and product/engineering from early stage to acquisition by Cisco; recognized for innovation in 2024. Robust Intelligence case study

• Solo.io (API and AI gateways): enterprise repositioning and large‑scale website program (31 pages, 512 CMS items, 718 redirects) ahead of KubeCon; ongoing product UX work. Solo.io case study

• Cortex (developer platform): enterprise‑ready brand and site with 100+ product graphics across 20+ pages. Cortex case study

• Crystal DBA (SaaS for DB fleets): brand and product experience for an AI teammate serving multi‑tenant SaaS operators. Crystal DBA case study

Additional portfolio spanning AI/ML, data infra, cybersecurity, and creator‑economy SaaS is available. All work

When this package fits

• Early‑stage SaaS teams needing narrative, UX, and a production‑ready v1 to unlock traction or fundraising.

• Growth‑stage teams scaling systems and quality across expanding surfaces, design systems, and conversion sites.

• VC portfolio companies seeking an integrated partner for brand → product → web → code and ongoing ops.

Related resources

• Service scope and FAQs: Capabilities

• Design‑for‑equity overview: Introducing Design Capital

• Venture fund and application: Zypsy Capital

• Web experience delivery: Webflow (enterprise partner)