Data Scientist
DEUNA
About the role
About DEUNA 🧡
We are a rapidly growing startup that simplifies global payments and powers next generation commerce in a single platform. With our products we've consolidated hundreds of payment solutions in a single integration, harness an intuitive payment orchestration method and centralize payment reconciliation.
We are currently present all across LATAM and looking for exceptional talent to join our team and continue revolutionizing the world of payments! 🚀
Visit https://www.deuna.com/ to learn more about us!
About the Role
We are looking for a hands-on data science leader to own machine learning and experimentation for DEUNA’s payments platform. You will be building the foundations of the data science practice at Deuna, working independently to design, train, and validate models that increase conversion, reduce declines, and reduce fraud in real-time payment flows across merchants and payment providers. You will be a part of the technology organization and will collaborate with project leads who own AI and modeling solutions for our customers, alongside existing data engineering and BI teams who already manage our data foundations and inference services. As DEUNA’s AI efforts grow, so will the team, and this role is a technical leadership role, with potential for people leadership if the skills align.
Who You Are
You have 5+ years of experience applying machine learning to real production problems, ideally in payments, fintech, fraud, or other high-volume transactional environments.
You think like a research scientist: you start from a problem, decide what data you need, choose the right modeling approach, and define how you will prove it works.
You have hands-on depth in feature generation, model selection, training, and hyperparameter optimization, and you know when a simple model beats a complex one.
You have designed and run experiments, including A/B testing and experimentation platforms, and can explain how you validated that a model delivered impact.
You are proficient in Python and SQL and comfortable querying large datasets in tools like Snowflake. Familiarity with tools such as TensorFlow and Airflow is expected, and you can explain how you have managed and rolled out models.
You are self-directed. You push for the information you need, and you do not need close supervision to keep work moving.
You communicate clearly with technical and non-technical audiences, including setting realistic expectations with leadership about what models can and cannot achieve.
You have experience in guiding technical infrastructure teams to implement features that enable efficient data science and ML training pipelines and systems
What You’ll Do
Own the end-to-end modeling lifecycle for DEUNA’s payment optimization use cases: analyze merchant and transaction data, define modeling strategy, generate features, train and tune models, and release them through our existing inference infrastructure.
Build the experimentation framework we need to measure model performance while collaborating with system and infra engineers, from early signals through month-over-month results, and tie that performance to commitments on our merchant contracts and product pipeline.
Partner with data teams to define and track building of data processing pipelines that surface insights that shape what DEUNA delivers. You will use experiments and rapid model iteration to tailor approaches to merchant data and goals, and work with the existing models while building new ones.
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What will you find when you join DEUNA?
- A multicultural team distributed throughout LATAM
- Dynamism, agility and constant innovation
- Being part of a high-impact solution for an entire region
- The best tools and technology to operate
- Being part of the startup culture.
- We are in full expansion!
Benefits:
Vacations and additional PTO 🏝️
Remote work from anywhere 💻
Economic support for internet and cell phone line📱🌐
We all own DEUNA, we offer stock options 💸
Multidisciplinary, diverse and dynamic team 🧡
Growth and career path 🚀
Be part of a dynamic team that's creating the next generation payments platform.
Join us at DEUNA!
DEUNA is proud to be an equal opportunity employer. We value and celebrate diversity and inclusion in our workplace. All employment decisions at DEUNA are made without discrimination based on nationality, race, ethnicity, religion, gender, sexual orientation, gender identity or expression, marital status, color, disability, or any other characteristic protected by law.
Responsibilities
- Own the end-to-end modeling lifecycle for payment optimization use cases, from data analysis and feature generation through model deployment.
- Build an experimentation framework to measure model performance and business impact.
- Partner with data, systems, and infrastructure teams to develop pipelines and support machine learning workflows.
- Iterate on models tailored to merchant data and goals.
Qualifications
- 5+ years applying machine learning to production problems, ideally in payments, fintech, fraud, or other high-volume transactional environments.
- Hands-on experience with feature generation, model selection, training, and hyperparameter optimization.
- Experience designing and running experiments, including A/B tests, and validating model impact.
- Proficiency in Python and SQL, with experience querying large datasets using tools such as Snowflake.
- Familiarity with TensorFlow, Airflow, and model management and deployment.
- Experience guiding infrastructure teams to build data science and machine learning pipelines.
- Strong communication skills and the ability to work independently.
Benefits
- Vacation and additional paid time off
- Remote work from anywhere
- Internet and mobile phone support
- Stock options
- Growth and career development opportunities
Skills mentioned
About DEUNA
DEUNA is the Agentic Operating System built for commerce: an agentic workforce for your entire commerce stack, from intelligence to execution, all in one place. We started with a mission to make commerce borderless, connecting the providers, payment methods and markets behind every checkout. That foundation is still at the core of DEUNA, and today it lets businesses reach every provider, rail and market through one integration. As we grew with our customers, we saw that the next gains in commerce would come from understanding every transaction and acting on it fast enough to matter. That is why we evolved. At the center of the platform is Athia, our AI command center and always-on commerce expert, built to investigate, advise and monitor every transaction. Teams can ask anything in natural language and get instant answers, run a full investigation from a single question, and get notified about any metric, segment or provider before an issue becomes a loss. From insights to execution, DEUNA deploys a workforce of agents behind every transaction. One coordinated workforce optimizes revenue, cost, risk and operations across the entire payment stack, adapting checkout to every session, maximizing acceptance, reducing processing costs, automating reconciliation across every provider and helping teams prioritize disputes and respond faster. It runs 24/7, catching lost transactions and reducing costs before they hit the bottom line. Businesses can connect their current stack and activate insights and agentic execution while keeping their infrastructure untouched, or build with us on a backbone that comes natively connected to Athia and the agentic workforce. Leading enterprises in airlines and hospitality, retail, digital goods, entertainment, marketplaces, quick service restaurants and financial institutions trust DEUNA to make every payment decision drive growth.