Senior Software Engineer - Alti Team

alternativepayments; United States; Remote; USD 90,000 - 105,000; Full time

Benefits offered by this job

Equity

Unlimited PTO

Learning stipend

Job summary

AlternativePayments is seeking a Senior Product Engineer for a remote role based in Brazil. You will join a small squad to scale an AI agent product that helps service-based SMBs with money movement and financial workflows, blending hands-on AI delivery with observability and production readiness.

Responsibilities include building end-to-end features, designing RAG pipelines, LLM evaluation, monitoring AI features, and collaborating with Product and Design to solve real customer problems.

Qualifications

• Solid experience as a software engineer who has built and shipped product features.
• Hands-on work on AI products in the last 12 months, including LLMs, agents, or AI features, without necessarily having led the work.
• Experience with at least one of: chatbots or conversational AI, RAG, or LLM evaluation pipelines.
• Strong skills in at least one of Go, TypeScript/JavaScript, or Python.
• A product mindset focused on what gets delivered to users, not only the model, and comfort owning many parts of the delivery chain in a fast-paced environment.
• Professional working proficiency in English.

Responsibilities

• Build and ship product features end to end, spanning conversational AI, agents, and automated routines.
• Design and improve RAG pipelines and prompt strategies, and build LLM evaluation pipelines to measure quality and catch regressions.
• Set up monitoring and observability for AI features, covering prompts, models, and usage.
• Help take machine learning models into production with monitoring and continuous feedback loops.
• Partner with Product and Design to identify where AI and machine learning can solve real customer problems.

Skills

Software engineering

AI product

Chatbots / Conversational AI

RAG

LLM evaluation pipelines

Go

TypeScript/JavaScript

Python

English proficiency

Job description

Role overview

Senior product engineer joining a small squad to scale an AI agent product that helps service-based small and mid-sized businesses with money movement and financial workflows. The role blends hands-on AI and LLM feature delivery with evaluation, observability, and taking machine learning models to production in a remote position based in Brazil.

Responsibilities

• Build and ship product features end to end, spanning conversational AI, agents, and automated routines.
• Design and improve RAG pipelines and prompt strategies, and build LLM evaluation pipelines to measure quality and catch regressions.
• Set up monitoring and observability for AI features, covering prompts, models, and usage.
• Help take machine learning models into production with monitoring and continuous feedback loops.
• Partner with Product and Design to identify where AI and machine learning can solve real customer problems.

Requirements

• Solid experience as a software engineer who has built and shipped product features.
• Hands-on work on AI products in the last 12 months, including LLMs, agents, or AI features, without necessarily having led the work.
• Experience with at least one of: chatbots or conversational AI, RAG, or LLM evaluation pipelines.
• Strong skills in at least one of Go, TypeScript/JavaScript, or Python.
• A product mindset focused on what gets delivered to users, not only the model, and comfort owning many parts of the delivery chain in a fast-paced environment.
• Professional working proficiency in English.

Nice to have

• Prompt engineering experience and AI monitoring and observability tooling.
• Experience building autonomous or personal agents that work across channels such as Slack, Teams, or WhatsApp.
• Experience putting machine learning models into production with monitoring and feedback loops.
• Background in fintech, payments, or financial products, and experience at an early-stage startup from Seed to Series B.
• A track record of building and scaling ML or LLM products.

Benefits and work setup

• Remote position based in Brazil.
• Total compensation range of $90,000 to $105,000 plus equity, with pay calibrated to experience and skills.
• Equity opportunities, unlimited PTO, and flexibility when needed.
• Yearly learning and development stipend.