Ezequías Aramburu
Senior Software Engineer with 9+ years of experience building scalable web and mobile applications, specializing in backend-heavy solutions.
About
I'm a product-oriented software engineer with 9+ years shipping production systems across fintech, e-commerce, logistics, healthcare, and AI-native platforms. I lean backend—Node, NestJS, Postgres, and AWS — with strong hands-on depth in React, Next.js, React Native, and LLM orchestration.
I'm comfortable owning architecture decisions end to end: from agent design and infrastructure observability down to write-path performance and CI/CD hygiene. I do my best work when engineering, product, and design move together.
Recent Projects
Saas Ready
Production-ready SaaS boilerplate with monorepo setup, Stripe billing, transactional emails, auth, PostgreSQL, Primsa and much more.
Full StackNode.jsExpressPrismaStripe
Experience
FLY DEVS
New York, United States | RemoteSenior Software Engineer
- Stack: TypeScript, JavaScript, Java, Python, React.js, Next.js, React Native, NestJS, PostgreSQL, AWS (Lambda, EC2, SES, SQS, CloudWatch, Cognito, DynamoDB, S3), Supabase, tRPC, TypeORM, Vercel, Docker, Redis, Firebase, New Relic.
AI-Native Real Estate Platform · Dec 2025 – Present
- Built and maintained an AI orchestration layer supporting dynamic model switching across providers, enabling the product to adapt inference costs and capabilities per use case.
- Audited and rewrote document-upsert paths against an EAV schema (enrichments → keys → values → anchors), converting per-row writes to batched queries to remove lock contention on the hot path.
- Closed a production observability gap end-to-end: Vercel log drains → Slack with enough context to land directly on the failing function; mirrored the pattern for Lambda/CloudWatch on the email-ingestion side.
- Shipped a CI/CD step that diffs deployed Supabase RPCs against local SQL files and auto-drops orphans, keeping the schema honest across dev and main.
- Instrumented PostHog session replay with PII-aware masking for UX debugging across the active customer base.
- Drove a security review of the SES inbound-email pipeline (SPF/DKIM/DMARC handling) since the from-address determines deal ownership; documented behavior and the decision rationale.
E-Commerce Platform · 2023 – 2025
- Owned end-to-end delivery across a React Native production app, internal Next.js dashboards, and core NestJS and Java services integrated with third-party providers.
- Redesigned product search with Redis and MiniSearch, improving response times and ranking quality on a high-traffic catalog.
- Built async pipelines, background workers, and batch processes for promotions, catalog updates, and back-office workflows—improving traceability and cutting manual operator interventions.
- Refactored complex commercial-flow business logic across services for maintainability and operational clarity.
- Cut AWS spend by 38% through performance tuning, instance right-sizing, and architectural changes.
LEMON CASH
Buenos Aires, Argentina | RemoteSenior Mobile Engineer
- Stack: TypeScript, React Native, Firebase, Jest, Bitrise, Sentry, App Center, Datadog, SonarQube, GitHub Actions.
- Collaborated with cross-functional teams to deliver high-impact solutions in a fast-paced environment, ensuring timely delivery of product milestones.
- Led a complete app rebrand, rebuilding the component library from scratch following Atomic Design principles, improving UI consistency and accelerating future feature development.
- Drove code review and contributed to release engineering in a fast-moving fintech environment.
- Integrated Sentry and Datadog monitoring, reducing mean time to detect (MTTD) production incidents by ~35%.
DEV BASE
Los Angeles, United States | RemoteFull Stack Engineer
- Stack: JavaScript, React Native, React Query, Auth0, Redux, Jest, Firebase, App Center, Express, NestJS, Node.js, MongoDB, Mongoose, AWS EC2, Docker.
- Played a key role in shaping the design and structure of new features, collaborating with a cross-functional team to ensure they fit seamlessly into the existing project.
- Took charge of refining older code, making it more efficient and easier to work with.
- Conducted code reviews, offering insights to enhance overall code quality and maintain consistency across the board.
- Scaled an HVAC platform from the ground up to 15k+ users, delivering a full rebrand and a continuous stream of new features across web and mobile.
PROMINENTE S.A.
Córdoba, Argentina | On-siteSoftware Engineer
- Stack: TypeScript, JavaScript, Express, Node.js, Next.js, NestJS, React Native, React.js, Angular, PostgreSQL, Sequelize, MongoDB, Mongoose, Redis, Firebase, Auth0, JWT, Heroku, AWS EC2, AWS Lambda, Karma, Enzyme, RabbitMQ, Docker.
- Led the architectural redesign of applications, optimizing performance, scalability, and maintainability through the adoption of best practices and design patterns.
- Collaborated closely with stakeholders to understand project requirements and objectives, ensuring the delivery of high-quality solutions that meet client needs.
- Built a white-label wallet platform from scratch, designing the architecture to support full customization across branding, features, and business logic for multiple clients.
TOPTIVE S.A.
Córdoba, Argentina | On-siteSoftware Engineer
- Stack: JavaScript, TypeScript, Ruby, Express, React Native, React.js, AngularJS, Ruby on Rails 4, Active Admin, Active Records, PostgreSQL, Sequelize, MongoDB, Mongoose, Axios, JWT, Redux, Firebase, Karma, Enzyme, Jest, Heroku, AWS EC2, Docker.
- Built a logistics platform for dump-truck dispatch and fleet coordination, owning full-stack delivery across web and mobile.
- Contributed to the design, implementation, and code review processes for web and mobile applications.
- Conducted regular code reviews, providing constructive feedback and mentoring to new team members to enhance their skills and capabilities.
Skills
TypeScriptJavaScriptRubyNodeJsExpressNestJsPostgreSQLMongoDBPrismaSequelizeMongoosePG ToolsDockerAWS EC2AWS LambdaAWS S3HerokuVercelNginxApacheRabbitMQRedisReactJsReact NativeNextJsAngularReduxHooksContextNgRxRxJsAxiosReact QueryGraphQLAuth0JWTJestKarmaEnzymeSonarqubeSentryDatadogAmplitudeGitFirebaseApp-centerBitrise
Soft Skills
LeadershipMentoring & CoachingStrategic ThinkingProject ManagementClear CommunicationStakeholder ManagementAdaptabilityProblem SolvingCritical ThinkingDecision-MakingGrowth MindsetOutcome-Oriented Thinking
Education
National University of Río Cuarto
Mar 2013 - Dec 2016Computer Analyst
National University of Río Cuarto
Mar 2013 - Mar 2019Bachelor's in Computer Science
Press Cmd / Ctrl + K to open the command palette