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DEUNA is a rapidly growing fintech startup revolutionizing global commerce with ATHIA, an AI-powered orchestration and payments platform. The company helps large enterprises boost approval rates, reduce costs, and unlock new revenue through payment intelligence, checkout optimization, and data orchestration. With deep integrations across 300+ payment service providers and alternative payment methods, DEUNA powers over 20% of Mexico's digital economy and is expanding into the U.S. market.
As a Senior Sales Engineer, you will bridge complex technical architecture and strategic business value for enterprise clients. You'll report to the Head of Customer Solutions and partner with e-commerce, financial, and product executives to demonstrate how agentic intelligence solves fragmented data issues and optimizes cost structures.
Key responsibilities include owning the technical demo process and translating AI capabilities into clear, execution-ready outputs for C-suite stakeholders. You'll conduct value engineering with enterprise clients to quantify ROI by identifying hidden costs in manual processes versus AI-driven optimization gains. Deep technical discovery work will uncover specific pain points such as lack of business context in off-the-shelf AI tools or operational firefighting. You'll customize technical presentations and proofs-of-concept reflecting specific KPIs and operational nuances of each merchant.
You'll manage the technical stages of the sales pipeline, ensuring cross-functional intelligence requirements are met for seamless transitions. Acting as the voice of the customer, you'll link field experience back to the Product team to influence development of multi-agent systems and bespoke strategist capabilities.
Required: 5+ years in Sales Engineering or Pre-Sales within SaaS and Payments sectors. Native or professional fluency in both Spanish and English is mandatory. Deep technical understanding of APIs, SFTP integrations, and no-code connections with major PSPs (Adyen, Braintree, Fiserv). Proven track record navigating complex sales cycles with large-scale global enterprise clients. Strong value-based selling background with ability to build business cases around cost-to-performance insights and revenue impact.
Preferred: Benchmarking proficiency comparing merchant performance against industry payments benchmarks. Familiarity with operational friction points of finance and tech teams, including chargeback data management and authorization outcomes. Skilled in scenario simulation and analytics tools for forecasting and proving acceptance rate gains. Expertise in building systems for high-impact opportunity detection and sizing.
