Infinity Constellation

Senior Full Stack Engineer - Radiance

1mo ago
SeniorRemote
Infinity Constellation

Senior Full Stack Engineer - Radiance

1mo ago
SeniorRemote

Senior Full Stack Engineer role to architect, build, and evolve an internal system into a scalable platform supporting agency workflows and SaaS expansion.

Requirements

  • 6–12+ years experience in engineering, product, or technical architecture roles
  • Experience building platforms or internal systems from zero to v1 (or beyond)
  • Strong product intuition: you think in systems, not features
  • Comfort working in ambiguity with evolving requirements
  • Ability to translate non-technical needs into technical solutions
  • Pragmatic, opinionated, and execution-focused
  • Experience with modern web stacks, APIs, automation, and AI tooling
  • Bias toward leverage, simplicity, and compounding value

Nice to have

  • Experience building tools for agencies, creative teams, or knowledge workers
  • Exposure to AI workflows, LLMs, or automation systems
  • Experience scaling internal tools into external-facing products
  • Interest in brand, design, storytelling, or creative systems
  • Prior founding or early-employee experience

Conditions

  • Founding technical seat in a platform-led creative company
  • Direct influence on product, architecture, and company direction
  • Build something that blends brand, creativity, and intelligence
  • Move fast without corporate drag
  • Remote-first, async-friendly, outcomes-driven culture
  • Backed by Infinity Constellation with long-term ambition

Other

  • Radiance is a digital design agency powered by The SOURCE® , a proprietary Creative OS that aligns every asset, message, and moment into one adaptive brand system.
  • We combine human-crafted design with intelligent systems to help modern brands operate with clarity, speed, and cohesion. Every engagement we deliver is not just creative output, but infrastructure : systems that scale as our clients grow.
  • At the center is The SOURCE® , a platform blending design, AI, and automation into a single evolving system for brand truth, execution, and growth.
  • We are backed by Infinity Constellation , the first AI holding company, and are building something category-defining at the intersection of brand, systems, and intelligence.
  • Radiance is moving from services-first → platform-powered .
  • We are looking for a Senior Full Stack Engineer to help architect, build, and evolve The SOURCE® from a powerful internal system into a scalable platform that supports both our agency workflows and future SaaS expansion.
  • This is not a “ticket-taking” role. This is a role for someone who wants to shape the product, the architecture, and the technical philosophy from the ground up.
  • You’ll work directly with the founder to translate creative workflows, brand logic, and operational complexity into elegant systems that compound over time.
  • Design and own the technical architecture of The SOURCE®
  • Translate creative, brand, and agency workflows into scalable systems
  • Build a platform that supports services today and SaaS tomorrow
  • Make pragmatic decisions about build vs buy vs automate
  • Ship fast, iterate often, and prioritize leverage over perfection
  • Build internal tools that reduce scope creep and operational drag
  • Integrate AI, automation, and workflow tooling where it actually adds value
  • Establish technical standards, documentation, and patterns early
  • Act as a thought partner to the founder on product vision and sequencing
  • Help define what Radiance should and should not build
  • Lay the groundwork for future engineering hires and contributors
  • Own outcomes, not just code
  • Frontend: React / Next.js (or equivalent modern framework)
  • Backend: Node.js / Python (FastAPI preferred) or similar
  • REST + basic GraphQL understanding
  • Authentication, permissions, role-based access
  • Handling real users, real data, real edge cases
  • Designing relational and/or hybrid schemas (Postgres + JSON)
  • Modeling entities like: Brands
  • Assets
  • Campaigns
  • Messaging hierarchies
  • Versions / approvals / history
  • Understanding how systems evolve without breaking
  • Integrate tools via APIs (Stripe, Jira, Webflow, CMSs, CRMs)
  • Use automation tools (Zapier, Make, n8n, Temporal, etc.)
  • Design async workflows (approvals, handoffs, notifications)
  • Build internal dashboards and admin tools
  • Prompt engineering for structured outputs
  • Embedding LLMs into workflows
  • Using vector databases (Pinecone, Weaviate, Supabase, etc.)
  • Designing guardrails for brand voice + consistency
  • Knowing when NOT to use AI
  • Scope ruthlessly
  • Ship v1 fast
  • Iterate with live users (your team first)
  • Make tradeoffs without paralysis
  • You want to build systems that compound
  • You enjoy shaping products from first principles
  • You care about how humans actually work, create, and decide
  • You like autonomy and responsibility more than structure
  • You want equity in what you build
  • You want highly defined specs and long planning cycles
  • You prefer maintaining existing systems over creating new ones
  • You’re looking for a narrow engineering role
  • You’re uncomfortable with ambiguity or iteration