Yuniel Acosta

I work on banking transformation projects for top-tier European financial institutions — currently BBVA, previously Deutsche Bank CLM. At BBVA I'm leading the migration of ESB integrations (TIBCO) to Apache Camel and Kafka pipelines within the NOVA framework. It's not just a technology swap — it means rethinking how data flows across a distributed architecture at real scale.

• Leading migration of ESB integrations (TIBCO) to Apache Camel and Kafka pipelines within BBVA's NOVA framework — rethinking data flow across a distributed architecture at real scale.
• Previously at Deutsche Bank CLM: built Spring Boot and Kafka services establishing architecture patterns the team adopted as standard.
• Design and implement microservices following Clean Architecture and DDD principles.
• Translate regulatory requirements into concrete technical specifications.
• Lead workshops on event-driven architecture and Kafka patterns.
• Mentor junior developers on SOLID principles and TDD.
• Drive CI/CD adoption across teams with complex delivery cycles.
• Build and maintain a custom AI engineering harness — prompt libraries, autonomous agents, subagents, MCPs, and Spec-Driven Development (SDD) workflows using OpenCode — to accelerate delivery and reduce cognitive overhead on complex integrations.
• Reduced average feature delivery time by 30% through improved estimation, sprint planning, and AI-assisted spec generation.
• Established coding standards adopted by 4 project teams across two banking clients.
• Delivered 6 regulatory compliance features ahead of deadline, avoiding potential audit findings.
• Cut boilerplate scaffolding time by ~60% by introducing SDD workflows and AI agent orchestration into the team's development cycle.

Senior Software Engineer in the Client Lifecycle Management (CLM) team, contributing to the bank's Know Your Client onboarding platform serving Investment Banking clients globally. Focused on service modernization, event-driven integrations, and regulatory compliance delivery.

• Led migration of core services from Spring Boot 2.7 to Spring Boot 3, reducing runtime dependencies by 40% and improving startup time by 3x.
• Designed and implemented a new event-driven integration service from scratch using Kafka, consolidating data from 12+ external sources and enabling instant client data pre-fill during onboarding.
• Reduced StreamLine user onboarding time by optimizing data validation workflows and automating compliance checks.
• Modernized 4 microservices maintaining 99.9% uptime during all migration phases.
• Collaborated with cross-functional teams (Compliance, Legal, Frontend) to deliver regulatory-compliant features on time.

Part of the Trust & Safety team, building the systems that protect login and registration flows for both MercadoLibre.com and MercadoPago.com across millions of daily transactions in the retail and payments ecosystem.

• Built internal APIs for malicious behavior detection across MercadoLibre.com and MercadoPago.com login and registration flows — systems processing 3M+ daily authentication events.
• Designed and implemented risk policies and scoring systems to identify and block fraudulent account activity in real time.
• Reduced fraudulent account registrations by 22% through new scoring heuristics.
• Improved detection latency by 40% after API refactoring and caching layer optimization.
• Collaborated with cross-functional teams to deliver scalable backend solutions supporting high-traffic retail and payments operations.
• Conducted performance and reliability testing to minimize downtime and improve user experience at scale.

Integrated multiple data sources and retail networks through high-availability backend APIs. Focused on performance optimization, test coverage, and CI/CD adoption across a high-traffic platform.

• Reduced data synchronization time between platform APIs and MMC from ~40 minutes to ~6 minutes, significantly cutting processing time and operational costs.
• Improved code quality by introducing unit and integration tests and promoting SOLID principles across the codebase.
• Designed and implemented a centralized configuration pattern for all platform microservices, simplifying deployments and configuration management.
• Implemented a GitLab CI continuous integration pipeline enabling fast, reliable delivery and reducing deployment errors.
• Maintained and optimized high-traffic APIs ensuring availability and performance across multiple retail market integrations.