Ascendancy Full-Stack Engineer
Buenos Aires - Argentina
Department:
Job Summary
Ascendancy
About Ascendancy
Ascendancy is building the future of relationship-driven growth. By combining AI with a high-touch operator-led approach the company helps founders and executives unlock the full potential of their networks.
They turn fragmented connections into a structured actionable growth enginesurfacing the right opportunities and enabling warm introductions that drive fundraising partnerships hiring and go-to-market expansion.
Operating at the intersection of AI data and human networks Ascendancy works closely with high-growth startups and top-tier operators to accelerate outcomes that wouldnt happen through cold outreach alone.
This is not traditional SaaSAscendancy aligns closely with client success often working in performance-driven models where incentives are tied to real business impact.
About the Role
Were looking for a full-time Fullstack Engineer to own and build product features end-to-endfrom scoping and architecture to implementation testing and deployment. Youll work across the stack using Python and TypeScript to develop high-quality user-facing applications with a strong focus on performance security and clean design.
This role is ideal for someone who thrives in fast-paced startup environments is comfortable with ambiguity and takes full ownership of their work. Youll collaborate closely with product and design contribute to AI-driven features (including LLM workflows and agents) and help shape both the user experience and underlying systemsfrom authentication to database design.
Were looking for a proactive solutions-oriented builder with strong communication skills product intuition and a willingness to move fast and take responsibility. Experience with Neo4j and GCP is a plus.
Must-Haves
Fluent in English with strong written and verbal communication skills
Full-stack engineering experience across frontend and backend systems
Startup experience; comfortable building quickly in ambiguous fast-moving environments
Ability to own projects end-to-end from scoping through implementation testing and deployment
Willingness to work 40 hours per week
Experience building or integrating AI agents LLM workflows or AI-enabled products
Strong product sense with a good eye for UX/UI and user-facing design quality
Experience designing secure authentication authorization and database systems
Strong proficiency with Python and TypeScript
Experience working on public-facing platforms or production-grade user applications
Preferred: experience with Neo4j and Google Cloud Platform
Nice-to-Haves
Experience integrating CRM messaging email or other third-party APIs
Familiarity with automation workflows data pipelines or relationship/network-based products
Prior experience at an early-stage startup or as a technical founder/operator
Compensation & Benefits
Equity
Offsites: 3 times per year
Interview Process
Client TakeHome Challenge
Client Resume & Take-Home Review
Culture Interview with CEO (Kamron Palizban)
Technical Interview with Tech Lead (Noah Britt)
External Interview with Advisor (TBD)
Required Experience:
IC
About Company
PostHog is the only all-in-one platform for product analytics, feature flags, session replays, experiments, and surveys that's built for developers.