Senior Full-Stack Engineer (Java Spring, FastAPI, React/TypeScript)

Posted 16 Hours Ago
Be an Early Applicant
6 Locations
Remote
Senior level
Information Technology • Software
The Role
Design and develop microservices and event-driven systems. Collaborate on API development, integrate advanced caching, and ensure robust backend architecture. Lead technical initiatives and mentor junior engineers while driving best practices in software development.
Summary Generated by Built In

¡Trabaja en DaCodes!

Somos una firma de expertos en software y transformación digital de alto impacto.

Durante 10 años hemos creado soluciones enfocadas en la tecnología e innovación gracias a nuestro equipo de +220 talentosos #DaCoders, incluyendo desarrolladores, arquitectos, diseñadores UX/UI, PMs, QA testers y más. Nuestro equipo colabora en proyectos con clientes en LATAM y Estados Unidos, logrando resultados sobresalientes.

En DaCodes, tendrás la oportunidad de impulsar tu desarrollo profesional, trabajar en diversos proyectos dentro de distintas industrias, y contribuir al diseño, implementación y optimización de infraestructuras en la nube.

Nuestros DaCoders tienen un gran impacto en el éxito de nuestro negocio y el de nuestros clientes. Serás el responsable de diseñar, construir e impulsar soluciones tecnológicas que habilitan productos de alto impacto.


RequirementsRESPONSIBILITIESBackend Architecture and API Development
  • Design and implement highly available microservices using Spring Boot, Spring WebFlux, and FastAPI.
  • Build clean API interfaces, efficient data flows, and resilient backend architectures.
Event-Driven and Real-Time Systems
  • Develop and maintain event-driven systems using Apache Kafka for async processing and platform-wide data synchronization.
Caching and High-Performance Systems
  • Leverage Redis for caching, queuing, and real-time operations to reduce latency and increase throughput.
AWS Engineering
  • Deploy and maintain cloud-native services using AWS technologies including EC2, Lambda, API Gateway, SQS, SNS, DynamoDB, and CloudWatch.
  • Serverless is considered a nice-to-have skill.
Full-Stack Collaboration
  • Work with frontend teams using TypeScript frameworks like React or Next.js, ensuring seamless integration between UI and backend services.
Automation and Workflow Enablement
  • Integrate and extend automation workflows using n8n, enhancing APIs and supporting operational efficiencies.
Security, Observability, and Reliability
  • Implement best practices for authentication, permissions, API security, error handling, monitoring, tracing, and alerting.
  • Ensure fintech-grade engineering standards such as idempotency, audit logging, retriable flows, and compliance-aligned design.
Cross-Functional Collaboration
  • Partner with Product, AI, Data, and Operations teams to define requirements and deliver end-to-end features aligned with business goals.
Technical Leadership
  • Lead code reviews, mentor junior engineers, establish best practices for CI/CD and DevOps.
  • Drive architectural decisions and contribute to long-term technical vision.
THINGS YOU WILL DO
  • Build new backend services from scratch using Spring Boot/WebFlux, FastAPI, or AWS components.
  • Design and maintain Kafka-based event-streaming pipelines for payments, notifications, and AI-driven workflows.
  • Implement high-performance caching layers using Redis.
  • Own and evolve core platform components with strong architectural thinking.
  • Write clean, testable, maintainable production-grade code.
  • Implement observability patterns across services, including logs, metrics, and tracing.
  • Collaborate on frontend integrations with TypeScript and modern UI frameworks.
  • Contribute to automation workflows in n8n backed by secure backend logic.
  • Build production-ready systems with proper handling of retries, circuit breakers, and security hardening.
REQUIREMENTSMandatory Technical Skills
  • 6+ years of professional software engineering experience.
  • Strong proficiency in Java, Spring Boot, and Spring WebFlux.
  • Experience building APIs with FastAPI.
  • Proficiency with TypeScript and modern frontend frameworks (React, Next.js, or similar).
  • Hands-on experience with Apache Kafka in distributed event architectures.
  • Strong command of Redis for caching, queues, and performance tuning.
  • Experience deploying and maintaining applications on AWS (EC2, Lambda, API Gateway, SQS, SNS, DynamoDB, CloudWatch).
  • Solid understanding of distributed systems: concurrency, resilience, retries, backpressure, fault tolerance, and observability.
Nice to Have
  • Experience with PostgreSQL, DynamoDB, or other scalable NoSQL systems.
  • Knowledge of serverless observability, tracing, and logging tools.
  • Experience with n8n or other workflow automation tools.
  • Exposure to AI/LLM-based systems (RAG, tool integrations, AI agents).
  • Familiarity with CI/CD and IaC tools (Terraform, CDK).
  • Experience in fintech, payments, digital wallets, remittances, or regulated environments.
Soft Skills
  • Strong ownership mindset and the ability to create clarity in ambiguous environments.
  • Excellent problem-solving and debugging skills across distributed architectures.
  • Clear communication and ability to influence technical decisions.
  • Comfortable balancing reliability, velocity, and long-term maintainability.
  • Collaborative, pragmatic, and committed to high engineering standards.

Benefits
  • 🚀 Integration with global brands and disruptive startups.
  • 🏡 Remote / Home office work model.
  • 📍 If hybrid or on-site presence is required, you will be informed in the first interview.
  • ⏳ Work schedule aligned to the assigned team or project.
  • 📅 Monday–Friday workweek.
  • 🎉 Day off on your birthday.
  • 🏥 Major Medical Expenses insurance (Mexico only).
  • 🛡️ Life insurance (Mexico only).
  • 🌎 Multicultural, international project teams.
  • 🎓 Access to courses and certifications.
  • 📢 IT-focused meetups with external expert guests.
  • 📡 Virtual team-building events and interest groups.
  • 📢 English classes.
  • 🏆 Opportunities across multiple business units.
  • 🏅 Proudly certified as a Great Place to Work.

Top Skills

Apache Kafka
Api Gateway
AWS
Cloudwatch
DynamoDB
Ec2
Fastapi
Java
Lambda
N8N
Next.Js
React
Redis
Sns
Spring Boot
Spring Webflux
Sqs
Typescript
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The Company
HQ: Houston, Texas
220 Employees
Year Founded: 2014

What We Do

DaCodes empowers organizations to achieve their full potential through custom software solutions. We believe in the power of technology to drive innovation and growth.

✅We understand your unique vision.
✅We engineer for impact
✅We're a global team, dedicated to your success

Our 220+ DaCoders worldwide provide personalized support and technical expertise to amplify your engineering capabilities, enhance workflows, and help you scale your business.

Let's code something great together.

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