About Firstbase

Tens of thousands of businesses — from newly incorporated startups to public enterprises — rely on Firstbase to streamline compliance, finance, analytics, and every part of the back office. It is one platform to run your entire company.

Our goal is to make running a business feel like magic. We make it possible by owning the general ledger and unifying data across all business functions. Compliance tasks are flagged — and often resolved — automatically. Real-time business metrics are accurate, accessible, and easy to understand. And if you need to hire a new employee, send an invoice, or file taxes, you can do it from the same interface.

We’re bundling what’s never been bundled. We’re not building an incorporation tool. We’re not building an ERP. We’re not building an "AI accountant." We are creating a new category entirely: the Company OS.

How we work

We cherish the moments when noise fades and we move with clarity, confidence, and focus — doing the right thing at the right time. These moments are when our best work happens, and we strive to create more of them.

We value craftsmanship over busyness, clarity over complexity, and resilience above all — whether it takes hard work or patience. We aim high, avoid mediocrity, and speak with fearless transparency.

We believe in upward mobility and take pride in growing talent from within, always preferring to promote our own before looking externally.

About the team

We're embedding AI across our entire product suite — and we're looking for a pragmatic, pioneering engineer to lead the way.

As Firstbase’s first AI hire, you’ll be at the forefront of how we apply AI to core business and product workflows. You’ll own the end-to-end stack, from early prototyping to production deployment, working closely with product and engineering. Expect high autonomy, a wide surface area to impact, and the opportunity to set the standard for AI inside the company.

Our product is built using PHP, Golang, Node.js, Vue, MySQL, PostgreSQL, AWS. We also use Redis, Vue Router, Vuex, Docker Compose, Docker, GitLab CI, and Graylog, and some third-party API's like Stripe. We use Slack, Clubhouse, Notion, Whimsical, Figma, and G Suite to collaborate and build together.

What you will do

• Spot the highest-impact ways AI can improve our product — from smarter automation to better insights and decision-making.
• Rapidly prototype ideas using tools like OpenAI, Hugging Face, LangChain, Pinecone, and whatever else helps us move fast.
• Adapt and integrate off-the-shelf models (LLMs, embeddings, classifiers, etc.) into real product workflows — not just to show what’s possible, but to ship things that matter.
• Experiment, measure, and iterate: create feedback loops and evaluation methods to test what’s working and what’s not.
• Train and fine-tune models using Firstbase’s own data when off-the-shelf isn’t good enough.
• Collaborate closely with engineering and product to turn prototypes into reliable, user-facing features.
• Build out our internal AI stack and shape best practices — technically and ethically — as we scale.
• Keep a pulse on the AI space and bring in new ideas, tools, and techniques that can give us an edge.

You should meet the following requirements

• Proven experience applying machine learning and/or LLMs to solve real-world product challenges in production.
• 5+ years of professional experience with Machine Learning, ideally in a SaaS or product-led B2B environment.
• 1+ years hands-on with LLMs and GenAI techniques — prompt engineering, retrieval-augmented generation (RAG), agents, etc.
• Experience deploying on cloud platforms like AWS, GCP, or Azure, and working with CI/CD and containerization workflows.
• Comfort with ambiguity and fast-paced environments — you move fast but think critically.
• Bonus: exposure to data engineering or analytics pipelines.
• Location: Latam/US
• Mindset: Mediocrity is your enemy. You don’t stop until you get to "great." You’re relentless in pursuit of excellence.
• Communication: You speak your mind, challenge assumptions, and present ideas clearly — no fear of conflict. For latam/remote roles, add the following: Proficiency in English is essential for effective communication across teams and with international stakeholders.

Perks & benefits

• Competitive salary & equity: We pay top-tier because you deserve it — plus generous equity package so you can share in the success of the future we’re building together.
• Generous raises & stock refreshers: Your impact deserves recognition. We review compensation quite frequently to ensure you're rewarded as your role grows — including stock refreshers so you continue to share in the upside of what we’re building together.
• Flexible work setup: We offer the freedom to work remotely, embracing diverse work styles, while NYC-based team members can opt for a hybrid setup, spending some days in the office to foster collaboration.
• Unlimited PTO & other time off benefits: Take the opportunity to rest and recharge. No questions asked — it’s time to disconnect and come back stronger. Plus, paid sick days, your birthday off, and national holidays.
• Success stipend: We provide a renewable stipend on day one and every two years to create your perfect work setup — laptops, headphones, and more. It’s about giving you the tools to do your best work.
• Comprehensive health benefits: Comprehensive health insurance reimbursement arrangement. No matter where you are, you’re covered.
• Learning & development: We invest in your growth. Firstbase will pay for courses, events, and anything that helps you become better in your craft.
• Annual anniversary gift: Receive a special gift each year to celebrate your journey with Firstbase as a thank you for your dedication.
• Parental Leave: We support you through life’s big moments — maternity, paternity, or adoption — with fully paid time off.
• Generous annual bonuses that grow: Expect a bonus that reflects your hard work — usually about 10% of your base salary in the first year. From your second year, a 20% annual multiplier boosts this, rewarding your consistent performance.
• Company Gatherings: We host annual retreats, quarterly in-person leadership planning, and occasional co-working days and happy hours — all fully covered to help us connect and have fun in person.
• Vacation bonus: After 3 years at Firstbase, you'll receive a generous vacation bonus to take that dream trip. It’s our way of saying "thank you" for your commitment — we’re here for the long haul, and we want you to enjoy the ride.
• Visa sponsorship: We support the best talent — wherever you are from. Firstbase offers visa sponsorship and renewal assistance if you are already in the US, or are looking to move to join our NYC-based team.
• Business travel & collaboration budget: Great work happens together. We cover team travel expenses so you can connect in person — whether it’s a strategy sprint, team meetup, or just time to build stronger relationships.
• Upward mobility: We grow from within. When new roles open up, we look to our own team first — because we believe in recognizing potential, rewarding performance, and giving our people the opportunity to level up.

Interested?

Even if you don’t check every single box but you’re passionate about the role and want to help build something great, we still want to hear from you. We value diverse experiences and unique perspectives.

Want to work at Firstbase but don’t see an opening that fits your experience? Message us — we will often “create” a role around a great candidate.