Senior Full-Stack Developer

About CybertifyCybertify is Australia's premier compliance-first cybersecurity consulting firm, proudly Australian-owned, fully independent, and sovereign in every respect. Our Elite Cyber Squad, a hand-picked team of red-teaming, penetration-testing, governance, and defensive experts, brings Big 4-calibre expertise with boutique agility, ensuring precision, independence, and uncompromising results.Now, Cybertify is extending that excellence into AI governance with the development of Sekurify — Australia's first AI governance and compliance automation platform, enabling enterprises to safely adopt AI while meeting ISO/IEC 42001, NIST AI RMF, and APRA CPS 234 requirements.The RoleWe're seeking an experienced Senior Full-Stack Developer to build Sekurify from 0 → 1.You will:Architect and build the product end-to-end (frontend, backend, infrastructure).Work directly with Cybertify's CEO.Translate compliance frameworks into production-grade software.Deploy to enterprise customers within 3–4 months.Own technical decisions and set engineering standards from day one.This is a greenfield build — no legacy code, no bureaucracy, complete ownership.Tech Stack (Non-Negotiable)Frontend 15 (App Router) + TypeScript (strict mode)Tailwind CSS + shadcn/uiTanStack Query (React Query) + Zustand (state management)Backend / APIsPython FastAPIPydantic v2, SQLAlchemy 2, Alembic (migrations)Database / Auth / StoragePostgreSQL 16 (pgvector + JSONB)Supabase (Postgres + Auth + Storage + Row-Level Security) – EssentialBackground Jobs / AI (preferred) or Celery + RedisAnthropic Claude Sonnet 4.5 (primary) + OpenAI GPT-4 (backup) via LangfuseDeployment & ToolingVercel (frontend)Railway / / Azure App Service (backend)GitHub Actions (CI/CD), Sentry (error tracking), PostHog (analytics), Resend (email)Must-Have (Dealbreakers)Do not apply unless you meet all of the following.Experience5 + years professional full-stack development (production B2B SaaS — not bootcamp or agency projects). + React (Expert Level)Can explain App Router vs Pages Router.Understand Server Components (RSC) and streaming.Have shipped production apps (GitHub or live links required).Python + FastAPI (Expert Level)Can build RESTful APIs from scratch.Understand async/await, dependency injection, Pydantic models.Experience with SQLAlchemy and Alembic.PostgreSQL (Advanced)Design normalized schemas with proper indexing.Write complex SQL queries (joins, CTEs, window functions).Understand transactions, constraints, and query optimisation.Supabase (ESSENTIAL)Hands-on experience with Supabase Auth (including SSO/SAML setup).Used Supabase Storage in production.Understand and configure Row-Level Security (RLS).Have deployed production apps using Supabase.Can show Supabase projects you've built.B2B SaaS Delivery ExperienceHave architected and shipped SaaS products end-to-end.Can demonstrate real, deployed products (not prototypes).Authentication & AuthorizationOAuth, SSO, SAML experience (preferably via Supabase Auth).Role-based access control (RBAC) + RLS.API IntegrationsIntegrated with third-party APIs (REST/GraphQL).Understand webhooks, rate-limiting, and error handling.Work StyleCan take high-level requirements and deliver working software.Ask smart questions; don't wait for detailed specs.Comfortable working independently in a fast-moving environment.AI-Assisted DevelopmentUse Cursor + Claude/GPT to accelerate development.Open to modern tools and workflows. Do Not Apply If You …Have < 5 years commercial experience.Have never used , FastAPI, or Supabase in production.Are frontend-only or backend-only — this is full-stack.Have never built and deployed a B2B SaaS product.Need hand-holding, detailed specs, or a large team.Are outside Australia (local residency and timezone required).Want a slow-paced corporate role — this is fast-moving startup work.Applications that don't meet these criteria will not be reviewed.Why Join Cybertify?Elite Cyber Squad Advantage: Work directly with Australia's most experienced cybersecurity professionals.Agile Disruption: Be part of a lean, fast-moving firm that delivers high-value results without the red tape and politics of bloated consultancies.Impactful Work: Solve complex, high-stakes cybersecurity and compliance challenges for boards, regulators, and executives across Australia's most critical sectors.Compliance-First DNA: Operate at the unique intersection of security and governance where GRC integration is not an add-on, but the foundation of every engagement.Independent & Trusted: Provide objective advice, free from vendor influence or offshore conflicts. Cybertify's independence ensures client trust is never compromised.Australian Sovereign Cyber: Support a firm that is 100% Australian owned and operated, designed to protect Australian businesses with Australian expertise.What We OfferA high-trust workplace with genuine autonomy, influence, and zero micromanagement.Direct client impact—your work is seen at board and executive levels, not buried in handovers.Premium salary packages aligned with market-leading consulting firms, reflecting the calibre of talent we hire.Professional development pathways, including funded certifications, training, and industry memberships.State-of-the-art Sydney CBD office with premium client and collaboration spaces.Cutting-edge tools and platforms across project delivery, client engagement, and cybersecurity operations.A supportive, collaborative team culture that balances intensity with respect, and professionalism with ambition.The opportunity to be part of a nationally recognised, fast-growing, sovereign cybersecurity force that is redefining the cyber consulting market.Ready to Join Australia's Cyber Elite?Cybertify / Sekurify — Building Australia's first AI Governance Platform.If you've built secure SaaS products end-to-end and want to own the engineering of something that matters click Apply and submit your CV with a short cover letter.No recruiters. Direct applications only.