About DarwoftDarwoft is a software factory delivering custom software solutions and IT staff augmentation services to international clients, primarily in the United States and Latin America.
We partner with startups and scale-up companies to build high-impact digital products, combining technical excellence with a people-first culture built on long-term relationships and collaborative work.Senior Fullstack Engineer (React/TypeScript/AI-Assisted Development) · LATAMLocation: Anywhere in LATAMWork Model: 100% RemoteEngagement: Full-time ContractorProject: FinTech • Customer Experience Operations PlatformEnglish Level: AdvancedSeniority: SeniorCommitment & FocusThis role requires full-time dedication, with clear priority given to Darwoft projects during the established working hours.
It is not compatible with other full-time professional engagements.
Any additional professional activities must be disclosed in advance and must not interfere with the responsibilities, availability, or working hours required for this role.Get to Know DarwoftAt Darwoft, we build digital products with heart.We're a Latin American technology company focused on creating impactful, human-centered software in partnership with companies around the world.
Our remote-first culture is built on trust, continuous learning, collaboration, and strong engineering standards.We're passionate about technology, but even more about the people behind it.
If you're looking for an environment where your ideas matter, experimentation is encouraged, and your impact is tangible, welcome to Darwoft.About the RoleWe're looking for a Senior Fullstack Engineer with a strong frontend focus to join a high-impact international FinTech project building an internal Customer Experience Operations Platform.The platform provides the tools customer experience agents and supervisors rely on every day to manage queues, assignments, conversations, agent availability, dashboards, metrics, and operational workflows.You'll primarily design and ship agent-facing experiences using React and TypeScript, working within a modern, modular frontend architecture while collaborating closely with the backend services and APIs that power the platform.A key aspect of this opportunity is the way the team approaches software development.We're looking for engineers with an agentic development mindset: people who actively use AI coding assistants, LLM agents, automation, and AI-assisted engineering workflows to prototype faster, solve problems, generate and validate code, improve testing, accelerate debugging,



and increase overall engineering productivity.This is not simply about using AI autocomplete.
We're looking for engineers who are comfortable incorporating tools such as Cursor, Claude Code, GitHub Copilot, coding agents, custom scripts, or AI-assisted specifications into their day-, we are looking for someone who enjoys deeply understanding the business, exploring new opportunities, forming and testing hypotheses, and turning complex data into clear insights and actionable strategies.
The adecuado candidate will be comfortable moving quickly, getting hands-on when needed, and working closely with cross-functional teams to continuously learn, iterate, and drive growth.
Responsibilities
Growth Track Leadership & Workload Organization: Act as the primary point of contact and lead analytics partner for Growth, Marketing, Product, and Partnerships, translating business questions into analytical roadmaps and actionable growth levers.
Team Leadership & Mentorship: Direct, empower, and develop a team composed of a Data Analyst and a Data Scientist, raising the bar on analytical rigor, execution velocity, and business impact.
Attribution & Media Strategy: Own and elevate our multi-touch attribution model, co-redesign our Paid Media investment strategy based on marketing elasticity, and refine Brand budget allocation using Media Mix Modeling (MMM) .
CRM Incrementality & Lifecycle: Elevate our CRM incrementality testing framework in close partnership with the Partner/CRM team to measure true lift across lifecycle campaigns and push notification/messaging funnels.
New Bets & Multi-Product Growth: Partner with the New Bets and Product teams to define measurable goals, establish KPI frameworks, and identify quick wins for multi-product adoption (cross-selling wallet, credit, and new regional rails).
Rigorous Experimentation & Causal Inference: Design, implement, and analyze A/B tests, incrementality studies, and holdout groups to validate growth hypotheses quickly and efficiently.
Hands-on Analytics & Data Infrastructure: Write complex, performant SQL queries, model growth datasets, and build self-serve reporting (preferably in Omni/BI tools) to provide real-time visibility into acquisition funnels, retention cohorts, and LTV.




Commercial & Partner Deal Valuation: Collaborate with the Partnerships team to model, evaluate, and optimize the commercial value and ROI of co-marketing and distribution agreements.
Requirements
6+ years of experience in Data Analytics, Growth Analytics, or Analytics Engineering within high-growth B2C tech companies, fintechs, neobanks, or top-tier data/marketing analytics practices
Expert SQL & Data Manipulation: Exceptional, hands-on SQL skills; comfortable querying large-scale transaction and event databases, modeling relational data, and optimizing query performance.
Growth Analytics Expertise: Deep domain knowledge in at least one (ideally multiple) key growth levers: Paid Media performance, CRM/Lifecycle incrementality, Referral loops, Branding/MMM, or Partner acquisition.
Advanced Experimentation & Statistics: Proven track record designing and analyzing A/B tests, multivariate experiments, and incrementality frameworks with statistical rigor.
Data Science / Technical Foundation: Hands-on proficiency in Python for analytical modeling, data manipulation, and exploratory analysis.
Formal coursework or background in Data Science, ML, Actuarial Science, Economics, Engineering, or Statistics is highly valued.
Track Record of People Leadership: Demonstrated ability to manage, mentor, and elevate data analysts and data scientists without losing hands-on technical edge.
Business Acumen & Bias for Action: Ability to balance complex long-term analytical projects with immediate "quick wins", prioritizing high-impact solutions over unnecessary complexity.
Strong Communication & Stakeholder Influence: Fluency in translating complex data insights into concise, strategic narratives for founders, product leads, and cross-functional teams.
These are the applicable requisites, although equivalent competencies in any of the above will also be considered.
What We Offer
Competitive salary
Initial stock options grant
Annual performance bonus
Health, dental, and vision plans
Remote work environment, although we have offices in Miami and México City and would love to work in hybrid model if you are up logies such as OIDC or Pub/Sub.Experience with Docker and CI/CD in cloud‐native environments.Familiarity with Storybook, Vitest, and design‐system workflows.Experience working in fast‐moving startup or scale‐up environments.What Darwoft OffersContractor agreement with payment in USD100% remote workArgentina's public holidaysEnglish classesReferral programAccess to learning platforms
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