Avantos.ai · 1 day ago
Senior Full Stack Engineer
NYC Metro Area
Full-time
Onsite
Senior Level, Lead/Staff
8+ years expAvantos.ai is building the industry’s first AI-native operating system for financial services, aiming to redefine client onboarding and core servicing workflows. They are seeking a Senior Full Stack Engineer with a strong frontend core, particularly in React/Next.js, who can also contribute to backend services using Golang.
Artificial Intelligence (AI)Financial ServicesSaaSSoftware
Responsibilities
Lead frontend architecture and experience design — owning React/Next.js interfaces end-to-end, with a focus on performance, UX, and scalability
Integrate cleanly with backend services and contribute to Golang APIs when needed — not just consume them
Collaborate tightly with product and design on experience decisions — not just implementation
Influence architecture, reliability, performance strategy, and engineering standards
Write high-quality, clean, well-structured code — and enforce that quality in reviews
Act as a technical force multiplier — mentoring, unblocking, and setting the technical bar
Qualification
Required
8+ years of engineering experience building production web applications
Expert-level frontend depth — React + Next.js mastery (streaming, modern rendering patterns, state strategy)
Proven ability to design high-performance, scalable, modern frontend systems with clarity and intentionality
Solid backend competency — ideally Golang, but strong API design fluency is required
Deep understanding of performance, caching, hydration, code splitting, bundling, deploy strategy, DX/UX tradeoffs
Product and architecture instincts — you care about what should be built, not just how
Preferred
AI, fintech, or data-intensive product experience
Experience shaping design systems, frontend platforms, or reusable architecture patterns
Edge rendering, observability tooling, or event-driven architecture familiarity
Experience with relational databases (Postgres)
Benefits
Competitive compensation + meaningful equity.
Company
Avantos.ai
AvantOS is a revolutionary AI platform that redefines client onboarding and servicing, making it a competitive advantage for financial institutions, delivering unmatched agility, scalability, and transparency.
2-10 employees
H1B Sponsorship
Avantos.ai has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Early StageTotal Funding
$9.2MKey Investors
E14 Fund
2024-10-08Seed· $9.2M
Leadership Team
Bassam Chaptini
Co-Founder & CEO
Rabih Ramadi
Co-Founder & CEO
Company data provided by crunchbase