Machine Learning Engineer
AI Growth Automation Engineer - São Paulo (Hybrid)
Sao Paulo
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Ready to accelerate your career?
Clara is the fastest-growing company in Latin America. We've built the leading solution for companies to make and manage all their payments. We already help over 20,000 large and growing businesses operate with agility and financial clarity through locally issued corporate cards, bill pay, financing, and a powerful B2B platform built for scale.
Clara is backed by some of the most successful investors in the world, including top regional VCs like monashees, Kaszek, and Canary, and leading global funds like Notable Capital, Coatue, DST Global Partners, ICONIQ Growth, General Catalyst, Citi Ventures, SV Angel, Citius, Endeavor Catalyst, and Goldman Sachs - in addition to dozens of angel investors and local family offices.
We're building the financial infrastructure that powers high-performing organizations across the region. We invite you to join us if you want to be part of a fast-paced environment that will accelerate your career and support you to do some of the best work of your life alongside a passionate and committed team distributed across the Americas.
What you'll do
We're looking for someone who gets a kick out of turning "someone should really automate this" into a working tool by next week. You'll sit at the intersection of Lifecycle, Sales, and AI — building the agents, workflows, and internal products that let Clara prospect, sell, and onboard faster and smarter than a headcount-only approach ever could. This isn't a "use AI to write better emails" role. It's a build role. You'll ship things: SDR co-pilots, outbound agents, lifecycle automations, onboarding flows — and you'll own whether they actually move pipeline and activation, not just whether they're clever.
You will:
- Build AI-powered prospecting & SDR tooling: design and ship agents/workflows that find, qualify, and engage prospects, and that get meetings on AEs' calendars — using tools like Amplemarket, Clay, HubSpot, and LLM APIs, glued together with n8n or custom code.
- Own lifecycle automation end to end: build and iterate on onboarding, activation, and retention flows across email, WhatsApp, and push, using Customer.io and our internal data stack, with AI doing the heavy lifting on personalization, timing, and content generation.
- Design the SDR-to-AE handoff as a system, not a manual process: instrument lead scoring, routing, and handoff logic so reps spend time on conversations, not admin.
- Prototype fast, validate faster: you're expected to go from idea to working internal tool in days, test it against real pipeline/activation metrics, kill what doesn't work, and scale what does.
- Partner cross-functionally: work directly with Sales, SDR leadership, Lifecycle, and Data/Eng to identify where automation unlocks the most value, and to make sure what you build actually gets adopted.
- Turn data into iteration: use Metabase, HubSpot, and Customer.io data to measure what your builds are actually doing to CAC payback, meetings booked, activation rate, and pipeline generated — and report on it in plain, honest terms.
Who you are
We're looking for someone who meets the minimum requirements to be considered for the role. The preferred qualifications are a bonus, not a requirement.
Must haves
- +2 years of hands-on experience building automation, internal tools, or AI-powered products — not just using AI tools, but shipping things that use APIs, LLMs, or agent frameworks to do real work.
- Experience with workflow/automation platforms (n8n, Zapier, Make, or equivalent) and comfort integrating APIs across systems (CRM, marketing automation, sales tooling).
- Working familiarity with CRM/lifecycle platforms such as HubSpot, Customer.io, or Salesforce.
- Enough technical fluency to read/write basic scripts (Python, JavaScript) or work closely with engineers to get something shipped — you don't need to be a software engineer, but you can't be blocked waiting for one.
- Strong written and verbal communication in English; ability to explain what you built and why it matters to non-technical stakeholders and executives.
- A bias toward building and testing over planning — you'd rather ship a rough version this week than a perfect spec next month.
Nice to haves
- Background in Lifecycle Marketing, RevOps, Sales Engineering, Product, or Software Engineering (any of these paths is fine — we care about what you've built, not your job title history).
- Direct experience with sales engagement/AI prospecting tools (Amplemarket, Clay, Apollo, or similar).
- Experience working with LLM APIs (OpenAI, Anthropic) and basic prompt engineering.
- Experience in B2B SaaS or fintech, ideally with an SDR/AE motion.
- Startup or small-team experience where you owned something end to end, from idea to production.
- Portuguese proficiency (not required, but useful across our MX/BR/CO/AR footprint).
Why join Clara
At Clara, you'll have the autonomy, speed, and support to make meaningful impact — not just on your team, but on how organizations are run across Latin America.
Who we are
- We're the leading B2B fintech for spend management in Latin America.
- Certified as one of the world's fastest-growing companies, a Great Place to Work, and a LinkedIn Top Startup.
- Passionate about making Latin America more prosperous and competitive.
- Constantly innovating to build financial infrastructure that enables each of our customers to thrive.
- Product-led, high-talent-density culture — designed for builders who raise the bar.
- Proud of our open, inclusive, and values-driven environment.
What we believe in
- #Clarity. We say things clearly, directly, and proactively.
- #Simplicity. We reduce noise to focus on what really matters.
- #Ownership. We take responsibility and never wait to be told.
- #Pride. We build products and experiences we're proud of.
- #Always Be Changing (ABC). We grow through feedback, risk-taking, and action.
- #Inclusivity. Every voice counts. Everyone contributes to our mission.
What we offer
- Competitive salary and stock options (ESOP) from day one
- Multicultural team with daily exposure to Portuguese, Spanish, and English (our corporate language)
- Annual learning budget and internal accelerated development paths
- High-ownership environment: we move fast, learn fast, and raise the bar — together
- Smart, ambitious teammates — low ego, high impact
- Flexible vacation and hybrid work model focused on results
If you're ready for growth, ownership, and impact — apply now and help us redefine B2B finance in Latin America.
Clara's Hybrid Policy
Claridians in a hybrid mode split their time between working from the office, talking to or visiting customers, or working from home. This hits a balance between bringing people together for in-person collaboration and learning from each other, while supporting flexibility about how to do this in a way that makes sense for each individual and team.
We don't enforce a minimum number of days for most roles, but you're expected to spend time at the office organically, and be at the office most days during your ramp-up or when required by your leader.
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