Full-Stack AI Engineer
- Role
- Unknown
- Experience
- Senior
- Employment
- Contract
Open to CO only. Set where you work from to check your eligibility.
No BS summary
Fast growing fintech company that powers transactional workflows for lenders and financial partners, and is now investing in a new phase of product development: evolving from a transactional web platform into a verified, AI-driven architecture that increases throughput and reliability across its core workflows.
Core skills
Required skills
Optional skills
Required languages
ABOUT KATAPULT
Katapult is an AI-first engineering studio connecting senior LATAM talent with startups and companies in the US. We're not a staff-augmentation shop: every person we put in front of our partners represents Katapult, co-creates product, and owns the outcome directly, with no managers or leads acting as a layer in between.
About the Role
Fast growing fintech company that powers transactional workflows for lenders and financial partners, and is now investing in a new phase of product development: evolving from a transactional web platform into a verified, AI-driven architecture that increases throughput and reliability across its core workflows. This is a rare "second engineer" role for someone who wants deep ownership over a system's technical direction not just execution. You'll help design and build a modular platform covering document staging, AI-assisted validation, third-party verification, and fraud detection, replacing manual review processes with a combination of LLM-based and deterministic logic, working closely with the founding engineering team and with high visibility to the executive team.
Responsibilities
- Lead architecture decisions as the platform evolves from a transactional web application into an agentic, AI-enabled system
- Design and build a modular pipeline covering document staging, automated rule-based validation, third-party verification, and fraud signal detection
- Determine where LLMs add real value versus where deterministic, rule-based logic is more reliable, cost-effective, and auditable (e.g., document classification, compliance checks)
- Build verification and evaluation pipelines with strong hallucination guardrails in a regulated, PII-sensitive environment where errors carry real consequences
- Architect for extensibility toward future modules, including portfolio management and lender/buyer portals
- Lay the technical groundwork for SOC 2 compliance without requiring a full rewrite
- Collaborate closely with a small, senior founding engineering team, shipping autonomously and fast
What We're Looking For
- Advanced, conversational English. This role requires direct, daily communication with a US-based executive team
- 6+ years of experience as a senior or staff-level software engineer, with a track record of owning architecture in a growing startup
- Proven experience building or evolving systems that combine AI/LLM components with deterministic, rule-based logic
- Hands-on experience with verification/eval pipelines and techniques for reducing hallucination risk in production AI systems
- Experience with document-heavy workflows: extraction, validation rules, and integration with third-party data sources
- Strong experience with modern stacks such as Vercel and Supabase (or equivalent)
- Experience in regulated, compliance-sensitive environments (fintech, healthtech, or similar) is a strong plus
- Comfortable working with high autonomy, fast iteration, and direct exposure to technical and executive stakeholders
Nice to Have
- Prior experience preparing a platform for SOC 2 certification
- Experience with fraud detection systems
- Experience in lending, capital markets, or structured finance technology
Work-Life Balance
- Work from Anywhere in Latin America: Enjoy the freedom to work remotely from any country in Latin America.
- 23 Days of PTO per Year: Take time to recharge with paid time off, accrued monthly (1.91 days/month).
- USA Federal Holidays
Financial Benefits
- Monthly Payment in USD: Get paid in US dollars, no matter where you are.
- Contractor Agreement with No End Date: Enjoy the stability of a long-term contract.
What you'll do
- Lead architecture decisions as the platform evolves from a transactional web application into an agentic, AI-enabled system
- Design and build a modular pipeline covering document staging, automated rule-based validation, third-party verification, and fraud signal detection
- Determine where LLMs add real value versus where deterministic, rule-based logic is more reliable, cost-effective, and auditable (e.g., document classification, compliance checks)
- Build verification and evaluation pipelines with strong hallucination guardrails in a regulated, PII-sensitive environment where errors carry real consequences
- Architect for extensibility toward future modules, including portfolio management and lender/buyer portals
- Lay the technical groundwork for SOC 2 compliance without requiring a full rewrite
- Collaborate closely with a small, senior founding engineering team, shipping autonomously and fast
What they require
- Advanced, conversational English. This role requires direct, daily communication with a US-based executive team
- 6+ years of experience as a senior or staff-level software engineer, with a track record of owning architecture in a growing startup
- Proven experience building or evolving systems that combine AI/LLM components with deterministic, rule-based logic
- Hands-on experience with verification/eval pipelines and techniques for reducing hallucination risk in production AI systems
- Experience with document-heavy workflows: extraction, validation rules, and integration with third-party data sources
- Strong experience with modern stacks such as Vercel and Supabase (or equivalent)
- Experience in regulated, compliance-sensitive environments (fintech, healthtech, or similar) is a strong plus
- Comfortable working with high autonomy, fast iteration, and direct exposure to technical and executive stakeholders
Benefits
- Work from Anywhere in Latin America: Enjoy the freedom to work remotely from any country in Latin America.
- 23 Days of PTO per Year: Take time to recharge with paid time off, accrued monthly (1.91 days/month).
- USA Federal Holidays
- Monthly Payment in USD: Get paid in US dollars, no matter where you are.
- Contractor Agreement with No End Date: Enjoy the stability of a long-term contract.
Katapult is an AI-first engineering studio connecting senior LATAM talent with startups and companies in the US. We're not a staff-augmentation shop: every person we put in front of a client represents Katapult, co-creates product, and owns the outcome directly, with no managers or leads acting as a layer in between.