Backend Engineer

• Build, extend, and optimize Java-based microservices responsible for task execution, state management, and orchestration logic.
• Model and manage NoSQL document databases to track execution state, workflow metadata, and session/context persistence.
• Define internal API contracts, adapters, and connectors that enable modular integration with external APIs and customer deployments.
• Implement production-ready infrastructure for data ingestion, document chunking, embedding indexing, and retrieval (RAG) pipelines.
• Architect backend services that support multi-step agentic flows, including context assembly, tool calls, and session memory.
• Turn product requirements for semantic search and AI assistant features into resilient, production-grade backend code.
• Deploy, configure, and customize the automation platform to meet specific customer use cases and business requirements.

Senior Backend Engineer – Automation, Platform Implementation

• The Railway team integrates train tickets into our platform and develops the application for onboarding new suppliers.
• Current focus areas include releasing and stabilising an integration with a major European partner, improving metrics and logging, evolving the architecture to make new partner integrations faster and smoother, and raising overall service stability and quality.

Python Developer

• Build and ship MCP server components
• Design the backend architecture for tool-use and agent orchestration layers integrated into an existing Java/SQL Server stack
• Own the implementation quality — not just writing code, but defining patterns the team can follow
• Collaborate daily with the existing AI Engineer as MCP and agent workstreams intersect
• Contribute to technical decisions with your own perspective — this is a peer relationship, not a directive one

Senior Backend Engineer – MCP Infrastructure

• Maintain and evolve the platform
• Investigate and fix production issues
• Work with complex SQL scripts and stored procedures
• Investigate data inconsistencies and business rules
• Provide operational technical support related to dashboards and data processing
• Work with integrations and asynchronous workflows
• Participate in troubleshooting and performance analysis
• Adjust backend features and business rules
• Help improve internal automations and platform workflows

Software Engineer – .NET, SQL, Analytics Platform

• Perform software requirements analysis, research, design, development, testing, and implementation of enterprise software applications and tools.
• Develop new software solutions and enhance existing applications, systems, and products.
• Write clean, maintainable, and well-documented Java code following software engineering best practices.
• Code, test, integrate, and document software solutions across multi-tier and internet-based applications.
• Apply software engineering, computer science, and analytical principles to solve technical challenges.
• Participate in code reviews and internal reviews of software components and systems to ensure quality and reliability.
• Collaborate with project leaders, engineers, and cross-functional teams to define and implement technical solutions.
• Troubleshoot, debug, and resolve software issues of moderate complexity.
• Work within established project scope, schedules, and development standards while delivering high-quality results.
• Stay current with emerging technologies and contribute ideas for product, process, and technology improvements.
• Quickly learn new technologies and take on increasing levels of responsibility as projects evolve.

Senior Java Software Engineer

• Design, develop, and maintain full-stack solutions using .NET and Angular.
• Build and support event-driven integrations and messaging workflows using Kafka.
• Collaborate closely with the client to understand requirements, manage expectations, and communicate progress clearly.
• Identify, address, and reduce technical debt in existing applications and tools.
• Optimize and enhance file processing and backend workflows, with a focus on scalability, reliability, and performance.
• Contribute to solution design, code reviews, and best practices across the team.
• Provide regular updates to internal and external stakeholders, ensuring alignment on milestones and deliverables.
• Support a collaborative environment by sharing knowledge and driving continuous improvement.

Full-Stack Developer, .NET, Angular, Kafka

• Design and develop web and mobile platforms
• Work with multiple companies on different products
• Make a difference in various projects
• Collaboration with the South American team

Web Full Stack .Net, Vue.js Engineer

• Design, develop, and maintain scalable backend services using TypeScript and Node.js
• Participate in migrating applications and services from on-premises infrastructure to AWS
• Build and maintain serverless solutions following cloud-native best practices
• Implement integrations and processing workflows for accounting, tax, payments, and transaction data
• Collaborate closely with Product, QA, and Engineering to deliver high-quality features
• Write and maintain automated and unit tests (Jest)
• Participate in code reviews and promote engineering best practices and maintainable design
• Monitor, troubleshoot, and optimize application performance, reliability, and security
• Ensure traceability and auditability across business processes and generate accounting/tax files.

Senior Node.js Engineer

• Definir y comunicar la dirección técnica de tu equipo: arquitectura de servicios, contratos entre APIs, diseño de flujos event-driven sobre Kafka y estrategias de evolución de sistemas legacy.
• Diseñar, construir y escalar servicios en Rails y Node.js con énfasis en confiabilidad, performance y mantenibilidad.
• Formar parte del equipo de arquitectura técnica, participando en decisiones que cruzan equipos y servicios: límites entre dominios, estándares de integración, observabilidad y resiliencia.
• Escribir y revisar RFCs y propuestas de diseño; comunicar trade-offs técnicos complejos con claridad a audiencias técnicas y no técnicas.
• Resolver los problemas técnicos de mayor complejidad y alcance, incluyendo debugging de sistemas distribuidos en producción e incident response.
• Liderar code reviews y design reviews exigentes pero constructivas, elevando el nivel técnico del equipo.
• Mentorear a ingenieros de todos los niveles, ayudándolos a crecer técnicamente y a ganar autonomía. Tu éxito incluye formar a la próxima generación de líderes técnicos.
• Trabajar con producto y con el Engineering Manager para traducir objetivos de negocio en planes técnicos ejecutables, sabiendo decir que no a lo correcto.
• Garantizar estándares de calidad: testing, CI/CD, seguridad y prácticas de desarrollo asistido por IA con control de calidad.

Tech Lead – Ruby on Rails, Node.js

• Proponer y participar de forma activa en soluciones de calidad, siguiendo buenas prácticas, estándares de desarrollo y patrones de diseño sin descuidar la agilidad del equipo.
• Analizar, diseñar y desarrollar soluciones que aporten valor a nuestros productos.
• Implementar código de calidad, siguiendo recomendaciones y aplicando buenas prácticas de desarrollo.
• Mantener y desarrollar monolitos API además de nuestras webs públicas y privadas.
• Ejecutar pruebas exhaustivas y velar por su calidad.
• Ser el referente en lo que respecta la implementación de soluciones.
• Acompañar y capacitar al equipo que integra en la resolución de problemas.
• Monitorear y mantener los sistemas que hacen funcionar nuestros productos.

PHP Developer

• Diseñar, desarrollar y mantener servicios backend escalables utilizando .NET y arquitecturas distribuidas.
• Colaborar con equipos de Frontend, Producto, Datos e IA para definir e implementar soluciones técnicas alineadas a las necesidades del negocio.
• Escribir código limpio, eficiente y testeable (Unit/Integration Tests), asegurando escalabilidad, baja latencia y alta disponibilidad.
• Colaborar activamente en decisiones técnicas, cuestionando trade-offs y aportando perspectiva desde la ejecución.
• Ejecutar la implementación de contratos de API definidos con el equipo de Frontend, asegurando integración fluida y eficiente.
• Depurar y resolver fallos en entornos cloud, escalando problemas complejos cuando sea necesario.
• Estimar tareas de manera realista en el marco de metodologías ágiles, escalando bloqueos de forma proactiva.
• Documentar el código escrito, manteniendo los estándares de documentación técnica del equipo.
• Identificar oportunidades de mejora y modernización tecnológica en aplicaciones y procesos existentes.

Backend Developer, Semi-Senior

• Colaborar en el Análisis Técnico/Funcional, el diseño funcional detallado y el diseño técnico de las soluciones backend.
• Diseñar e implementar pipelines de datos para el entrenamiento y actualización de modelos.
• Trabajar con modelos capaces de procesar diferentes tipos de inputs y optimizar la generación de prompts eficientes.
• Modelar soluciones mediante parametrización y/o programación de componentes de software.
• Diseñar, construir y ejecutar pruebas unitarias, integrales y de regresión.

AI Engineer – SSR/SR, Python, LLMs, RAG, Azure

• Colaborar en el Análisis Técnico/Funcional, el diseño funcional detallado y el diseño técnico de las soluciones backend.
• Diseñar e implementar pipelines de datos para el entrenamiento y actualización de modelos, encargándote del monitoreo y la mejora continua de modelos generativos en producción.
• Trabajar con modelos capaces de procesar diferentes tipos de inputs y optimizar la generación de prompts eficientes.
• Modelar soluciones mediante parametrización y/o programación de componentes de software, gestionando correctamente los transportes de código entre ambientes.
• Diseñar, construir y ejecutar pruebas unitarias, integrales y de regresión, ejecutando casos de prueba específicos para garantizar la estabilidad y performance de las entregas.
• Generar la documentación técnica del proyecto y de los requerimientos siguiendo las metodologías del equipo.

AI Engineer – Python, LLMs, RAG, Azure

• Design, develop and maintain backend components using Java and OOP principles
• Build and optimize SQL queries over large datasets (Oracle / PostgreSQL)
• Work with Data Lake environments and data integration flows
• Contribute to microservices architectures (Spring Boot)
• Collaborate in CI/CD pipelines using Git, GitHub Actions and Kubernetes
• Participate in Agile ceremonies and technical decision‑making
• Interact with functional teams in Transactional Regulatory Reporting contexts

Java Developer – Big Data

• Design and implement high-performance algorithms and complex business/geoscience features under Windows Desktop
• Maintain, optimize, and carefully refactor our established, high-quality monolithic codebase to ensure long-term architecture stability
• Conduct code reviews, collaborate on technical designs, and influence engineering best practices across a distributed team

Senior C++ Developer

• Develop and maintain backend services using Node.js and TypeScript
• Build and consume REST APIs
• Design and implement microservices-based solutions
• Write and maintain unit tests to ensure code quality and reliability
• Collaborate with cross-functional teams in an agile environment
• Participate in technical discussions and contribute to backend architecture decisions
• Support the continuous improvement of fraud prevention systems and processes

Node.js Engineer

Big Data Developer, Java

• Lead the design and delivery of reliable Java microservices for finance core and finance core reconciliation, ensuring accuracy, performance, and scalability.
• Define and enforce engineering standards, acting as the technical bar-raiser for the group.
• Audit, maintain, and improve existing repositories
• Drive automation to reduce manual reviews and errors (e.g., rules engines, validations, alerts, auto-reconciliation flows) and continuously optimize workflows.
• Mentor teammates via code/design reviews and knowledge-sharing, elevating domain and engineering maturity across the team

Java Technical Referent

• Migrate and refactor existing Python logic into Golang services owned by various other teams.
• Rapidly learn and adapt to internal tools, systems, and processes to speed up migration.
• Collaborate closely with engineers across teams to ensure smooth delivery.
• Debug complex issues quickly and provide clear, actionable solutions.
• Maintain high-quality, well-tested code with thorough validation.
• Identify and implement improvements in our migration tooling.

Senior Backend Engineer – Golang Migration

• Design and develop robust microservices in .NET 8+, applying an AI-first approach for coding, refactoring, and analysis
• Collaborate with Business, QA, and Development teams to accelerate requirement refinement and technical solutioning
• Optimize system performance, code quality, and maintainability with AI assistance while ensuring SOLID principles
• Design and optimize complex queries in both relational (SQL Server) and non-relational (MongoDB) databases
• Integrate AI into the entire development lifecycle, including automated testing, documentation, and early issue detection in code reviews
• Ensure a responsible and secure use of AI tools, validating and correcting outputs with critical thinking
• Promote a continuous improvement mindset focused on high impact and technical excellence

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