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En Qaracter, somos una firma multinacional de consultoría bancaria con un fuerte enfoque tecnológico y operacional/funcional. Tenemos oficinas en España, Argentina, México, Brasil y Estados Unidos, y proyectos en toda Europa y el Reino Unido. Donde trabajamos codo a codo con las principales instituciones bancarias para abordar desafíos complejos, vanguardistas y generar un impacto real. Actualmente estamos buscando un/a Java Backend Developer con experiencia en Spring Boot y en Apache Cassandra. Responsabilidades • Diseñar, desarrollar y mantener servicios backend utilizando Java y frameworks asociados (Spring Boot, Spring Cloud, etc.)., • Implementar y consumir APIs REST., • Desplegar y operar aplicaciones en entornos OpenShift., • Colaborar con equipos frontend que utilizan React para garantizar una correcta integración de los servicios., • Participar en revisiones de código, pruebas unitarias e integración continua., • Analizar incidencias y proponer mejoras de rendimiento, escalabilidad y seguridad. Requisitos • Experiencia demostrable en desarrollo backend con Java., • Conocimientos de Spring Boot y arquitecturas basadas en microservicios., • Experiencia trabajando con Cassandra., • Conocimientos de contenedores Docker y plataformas OpenShift, • Experiencia en diseño y desarrollo de APIs REST., • Manejo de herramientas de control de versiones (Git)., • Conocimiento de metodologías ágiles (Scrum/Kanban). Valorable • Experiencia en desarrollo frontend con React., • Conocimientos de CI/CD (GitHub Actions)., • Experiencia en entornos cloud (AWS, Azure). 🌟 Qué ofrecemos • Contrato indefinido en España., • Posibilidad de trabajar de forma remota., • Integración en equipos internacionales con un nivel de desarrollo de código complejo y desafiante dentro del sector bancario con clientes líderes a nivel mundial., • Paquete completo de beneficios: Restaurante Ticket / Capacitación y acceso a certificaciones / Remuneración flexible (transporte, cuidado de niños, seguro médico, etc.), • Resto de conceptos en bienestar personal y profesional de nuestra organización como ligas deportivas, ponencias de expertos, trainings a través de Cloudera, etc., • Evaluación de rendimiento anual con valoraciones de categoría y salario. 🌍 Sobre Qaracter Qaracter es una consultora internacional que ofrece servicios de asesoramiento en negocio, finanzas, riesgos, tecnología y operaciones. Combinamos un profundo conocimiento sectorial con una ejecución práctica para generar un impacto tangible. Con presencia en España, Argentina, México, Brasil y Estados Unidos —y actividad en Europa y Reino Unido— colaboramos con organizaciones líderes para impulsar la transformación y la innovación. 🟦 Declaración de Igualdad de Oportunidades En QARACTER Group estamos comprometidos con garantizar la igualdad de oportunidades y la no discriminación en todos nuestros procesos, promoviendo un entorno laboral inclusivo y diverso. Todas las candidaturas son bienvenidas, independientemente del sexo, género, identidad o expresión de género, orientación sexual, origen, etnia, edad, discapacidad o cualquier otra condición personal o social, en línea con nuestro Plan de Igualdad y nuestro compromiso con la equidad. https://www.qaracter.es/es/tratamientos-de-datos-candidatos

En Qaracter, somos una firma multinacional de consultoría bancaria con un fuerte enfoque tecnológico y operacional/funcional. Tenemos oficinas en España, Argentina, México, Brasil y Estados Unidos, y proyectos en toda Europa y el Reino Unido. Donde trabajamos codo a codo con las principales instituciones bancarias para abordar desafíos complejos, vanguardistas y generar un impacto real. Actualmente estamos buscando un/a Java Backend Developer con experiencia en Spring Boot y en Apache Cassandra. Responsabilidades • Diseñar, desarrollar y mantener servicios backend utilizando Java y frameworks asociados (Spring Boot, Spring Cloud, etc.)., • Implementar y consumir APIs REST., • Desplegar y operar aplicaciones en entornos OpenShift., • Colaborar con equipos frontend que utilizan React para garantizar una correcta integración de los servicios., • Participar en revisiones de código, pruebas unitarias e integración continua., • Analizar incidencias y proponer mejoras de rendimiento, escalabilidad y seguridad. Requisitos • Experiencia demostrable en desarrollo backend con Java., • Conocimientos de Spring Boot y arquitecturas basadas en microservicios., • Experiencia trabajando con Cassandra., • Conocimientos de contenedores Docker y plataformas OpenShift, • Experiencia en diseño y desarrollo de APIs REST., • Manejo de herramientas de control de versiones (Git)., • Conocimiento de metodologías ágiles (Scrum/Kanban). Valorable • Experiencia en desarrollo frontend con React., • Conocimientos de CI/CD (GitHub Actions)., • Experiencia en entornos cloud (AWS, Azure). 🌟 Qué ofrecemos • Contrato indefinido en España., • Posibilidad de trabajar de forma remota., • Integración en equipos internacionales con un nivel de desarrollo de código complejo y desafiante dentro del sector bancario con clientes líderes a nivel mundial., • Paquete completo de beneficios: Restaurante Ticket / Capacitación y acceso a certificaciones / Remuneración flexible (transporte, cuidado de niños, seguro médico, etc.), • Resto de conceptos en bienestar personal y profesional de nuestra organización como ligas deportivas, ponencias de expertos, trainings a través de Cloudera, etc., • Evaluación de rendimiento anual con valoraciones de categoría y salario. 🌍 Sobre Qaracter Qaracter es una consultora internacional que ofrece servicios de asesoramiento en negocio, finanzas, riesgos, tecnología y operaciones. Combinamos un profundo conocimiento sectorial con una ejecución práctica para generar un impacto tangible. Con presencia en España, Argentina, México, Brasil y Estados Unidos —y actividad en Europa y Reino Unido— colaboramos con organizaciones líderes para impulsar la transformación y la innovación. 🟦 Declaración de Igualdad de Oportunidades En QARACTER Group estamos comprometidos con garantizar la igualdad de oportunidades y la no discriminación en todos nuestros procesos, promoviendo un entorno laboral inclusivo y diverso. Todas las candidaturas son bienvenidas, independientemente del sexo, género, identidad o expresión de género, orientación sexual, origen, etnia, edad, discapacidad o cualquier otra condición personal o social, en línea con nuestro Plan de Igualdad y nuestro compromiso con la equidad. https://www.qaracter.es/es/tratamientos-de-datos-candidatos

Are you a software developer with experience in Java, C++, and Linux and an interest in Market Risk? Do you enjoy working close to the engine, investigating complex calculations, debugging technical issues, and contributing to targeted developments? At Qaracter, we're looking for a Java / C++ Developer to join a technology team working on financial risk solutions. You will combine Java development with C++ debugging and troubleshooting, helping ensure the reliability, performance, and security of critical risk applications. This is an excellent opportunity for developers who enjoy solving complex technical problems, working with financial systems, and gaining deeper exposure to Market Risk environments. 🔍 What You'll Do • Develop and maintain Java applications, implementing targeted developments and addressing identified vulnerabilities., • Debug and analyze C++ engine traces to investigate calculation discrepancies, unexpected behavior, and technical errors., • Perform small-scale developments and adjustments in C++ when required., • Analyze and troubleshoot issues across both Java and C++ components., • Use Git for version control and collaborate with other developers throughout the development lifecycle., • Work in Linux environments, performing basic administration, troubleshooting, and application support tasks., • Investigate technical incidents and help identify the root cause of calculation or application errors., • Apply knowledge of Market Risk concepts to understand and troubleshoot business and technical requirements., • Participate in code reviews, technical discussions, testing, and maintenance activities., • Work with AI-powered development tools such as Devin to support development and problem-solving activities. ✔️ What We're Looking For • 2+ years of professional experience in software development., • Strong knowledge of Java., • Experience with C++, particularly for debugging and troubleshooting., • Basic to intermediate knowledge of Linux environments., • Experience with Git and version control workflows., • Strong debugging and problem-solving skills across Java and C++ applications., • Knowledge or experience in Market Risk or financial risk systems., • Ability to investigate application behavior through logs, traces, and debugging tools., • Comfortable working on both development and maintenance tasks., • English level B2 or higher is highly valued. ⭐ Nice to Have • Previous experience working with Market Risk engines or financial risk platforms., • Experience troubleshooting complex numerical calculations or financial models., • Familiarity with security practices and vulnerability remediation in Java applications., • Experience with CI/CD environments and automated testing., • Experience working with AI-assisted development tools such as Devin, GitHub Copilot, Claude Code, or similar., • Knowledge of Agile methodologies such as Scrum or Kanban., • Experience in banking, financial services, or consulting environments. 🌟 What We Offer • Opportunity to work on financial technology and Market Risk projects using Java and C++., • Exposure to complex risk engines and critical financial systems., • Remote work model., • Competitive salary and comprehensive benefits package., • Training, certifications, and continuous learning opportunities., • Flexible retribution options, including meal vouchers, transportation, childcare, and private health insurance., • Collaborative, international, and technology-driven environment., • Access to modern AI development tools and engineering practices., • Opportunities for professional growth within an international consulting environment. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver high-impact solutions tailored to our clients' needs. With offices in Spain, Argentina, Mexico, Brazil, and the United States, and projects across Europe and the UK, we partner with leading organizations to solve complex business and technology challenges while fostering the professional growth of our teams. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity.

Are you passionate about backend engineering, API architecture, and the future of AI-native software delivery? At Qaracter, we are looking for an AI-Native Backend/API Technical Lead to join strategic technology initiatives within a leading international organization and contribute to a global Banking-as-a-Service (BaaS) platform across Payments, Collections, and Cash Management. This role combines strong backend/API engineering expertise with the ability to supervise and validate autonomous engineering workflows. You will work with technologies such as Java, Spring Boot, Python, Kafka, Kubernetes, and cloud platforms while leveraging AI tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay to accelerate the software delivery lifecycle. AI will support activities such as technical design, code generation, testing, documentation, code review, defect analysis, and quality assurance. As the Technical Lead, you will remain accountable for ensuring that AI-assisted outputs are technically sound, secure, tested, traceable, maintainable, and production-ready. 🔍 What You'll Do • Lead and supervise the end-to-end technical delivery of secure, scalable, and maintainable Backend/API capabilities., • Analyze functional requirements and translate them into clear technical specifications, solution designs, implementation plans, and acceptance criteria., • Design, develop, and review backend services using Java 21+, Spring Boot 3, Python 3.11+, and FastAPI where appropriate., • Design and document RESTful APIs using OpenAPI 3.1 and event-driven flows using AsyncAPI., • Supervise autonomous engineering workflows using tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay., • Define clear technical context and agent-executable instructions to enable reliable AI-assisted implementation., • Review and validate AI-generated technical designs, code, unit tests, documentation, test results, quality reports, and release-readiness evidence., • Identify and challenge unclear, oversized, incomplete, or technically weak requirements before autonomous execution begins., • Correct AI-generated outputs directly or through structured prompting and controlled re-execution., • Ensure traceability across requirements, prompts, tasks, code changes, tests, defects, documentation, and release evidence., • Design and supervise event-driven architectures using Apache Kafka, Kafka Streams, and Confluent Schema Registry., • Apply secure-by-design practices using OAuth 2.1, OpenID Connect, mTLS, JWT, Azure Key Vault, and HashiCorp Vault., • Build, deploy, troubleshoot, and maintain services using Docker, Kubernetes, GitHub Actions, and ArgoCD., • Collaborate with Platform teams on Terraform and Packer infrastructure-as-code initiatives., • Ensure appropriate observability, monitoring, distributed tracing, and AIOps instrumentation using technologies such as Datadog, Dynatrace, Prometheus, and ELK., • Ensure backend/API solutions meet enterprise standards for security, performance, scalability, observability, maintainability, and reliability., • Support application deployment, production troubleshooting, PRE/PRO readiness, and operational handover., • Collaborate with Product, Architecture, QA, Platform, Security, Infrastructure, AI Engineering, and Governance teams., • Contribute to continuous improvement of AI-assisted software engineering practices and reusable agent playbooks., • Ensure alignment with PSD2, GDPR, DORA, internal security standards, and enterprise AI governance., • Maintain a positive, proactive, and collaborative approach within an international engineering environment. ✔️ What We're Looking For • Minimum 4 years of professional experience in Backend/API Engineering, Technical Leadership, Platform Engineering, or a similar role., • Strong hands-on experience with Java 17+ / Java 21 and Spring Boot 3., • Strong experience developing REST APIs, microservices, and enterprise backend services., • Practical experience with Python 3.11+ and FastAPI., • Strong understanding of API lifecycle management, API security, API governance, and enterprise integration patterns., • Experience with Apache Kafka, Kafka Streams, schema registries, and event-driven architectures., • Hands-on experience with PostgreSQL, Redis, and preferably DynamoDB., • Experience with Docker, Kubernetes, AKS/GKE, CI/CD, and GitOps., • Experience with GitHub Actions, ArgoCD, Terraform, and preferably Packer., • Knowledge of API Management platforms such as Apigee Hybrid and/or Azure API Management., • Strong understanding of OAuth 2.1, OIDC, JWT, mTLS, and enterprise secrets management., • Experience with observability, monitoring, distributed tracing, AIOps, and static analysis., • Experience with automated testing, code quality, security scanning, defect analysis, and release-readiness processes., • Experience supervising, reviewing, or quality-assuring AI-assisted software engineering outputs., • Comfortable working with autonomous engineering tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, or similar., • Ability to create clear technical instructions, prompts, implementation context, acceptance criteria, and validation criteria for AI-assisted workflows., • Experience working in Payments, Banking-as-a-Service, Collections, Cash Management, or financial services is strongly preferred., • Experience working in regulated environments with GDPR, PSD2, DORA, or equivalent frameworks., • Strong analytical and problem-solving skills, with the ability to identify weaknesses in AI-generated designs, code, tests, and documentation., • Strong communication and collaboration skills., • English and Spanish: professional working proficiency. ⭐ Nice to Have • Experience with RAG architectures, vector databases, semantic caching, LangChain, LangGraph, or equivalent frameworks., • Experience with LLMOps, prompt engineering, AI-assisted SDLC, and enterprise AI governance., • Experience with Confluent Platform and schema evolution governance., • Experience with service mesh technologies such as Istio or Linkerd., • Experience with automated code review, AI-generated testing, test result validation, and defect triage., • Experience creating reusable AI agent playbooks, prompt-driven automations, and scheduled agent workflows., • Experience supporting PRE/PRO readiness, production deployment, and operational handover., • Experience mentoring engineers in AI-assisted development practices., • Experience working with large-scale enterprise or international technology environments., • Experience within Agile/Scrum engineering teams. 🌟 What We Offer • Opportunity to work on challenging Backend/API and AI-native engineering initiatives with high business impact., • Opportunity to contribute to a global BaaS platform across Payments, Collections, and Cash Management., • Exposure to modern backend technologies, cloud platforms, event-driven architectures, and autonomous engineering tools., • Opportunity to shape and improve AI-assisted software delivery practices within an enterprise environment., • Collaborative and international engineering environment., • Long-term project opportunities with continuous learning and professional development., • Remote work opportunity from Spain., • Competitive compensation package. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver real impact. With presence in Spain, Argentina, Mexico, Brazil, and the United States, and activity across Europe and the UK, we partner with top-tier organizations on complex transformation initiatives. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Equal Opportunity Plan and our commitment to equity.

Are you a software developer with experience in Java, C++, and Linux and an interest in Market Risk? Do you enjoy working close to the engine, investigating complex calculations, debugging technical issues, and contributing to targeted developments? At Qaracter, we're looking for a Java / C++ Developer to join a technology team working on financial risk solutions. You will combine Java development with C++ debugging and troubleshooting, helping ensure the reliability, performance, and security of critical risk applications. This is an excellent opportunity for developers who enjoy solving complex technical problems, working with financial systems, and gaining deeper exposure to Market Risk environments. 🔍 What You'll Do • Develop and maintain Java applications, implementing targeted developments and addressing identified vulnerabilities., • Debug and analyze C++ engine traces to investigate calculation discrepancies, unexpected behavior, and technical errors., • Perform small-scale developments and adjustments in C++ when required., • Analyze and troubleshoot issues across both Java and C++ components., • Use Git for version control and collaborate with other developers throughout the development lifecycle., • Work in Linux environments, performing basic administration, troubleshooting, and application support tasks., • Investigate technical incidents and help identify the root cause of calculation or application errors., • Apply knowledge of Market Risk concepts to understand and troubleshoot business and technical requirements., • Participate in code reviews, technical discussions, testing, and maintenance activities., • Work with AI-powered development tools such as Devin to support development and problem-solving activities. ✔️ What We're Looking For • 2+ years of professional experience in software development., • Strong knowledge of Java., • Experience with C++, particularly for debugging and troubleshooting., • Basic to intermediate knowledge of Linux environments., • Experience with Git and version control workflows., • Strong debugging and problem-solving skills across Java and C++ applications., • Knowledge or experience in Market Risk or financial risk systems., • Ability to investigate application behavior through logs, traces, and debugging tools., • Comfortable working on both development and maintenance tasks., • English level B2 or higher is highly valued. ⭐ Nice to Have • Previous experience working with Market Risk engines or financial risk platforms., • Experience troubleshooting complex numerical calculations or financial models., • Familiarity with security practices and vulnerability remediation in Java applications., • Experience with CI/CD environments and automated testing., • Experience working with AI-assisted development tools such as Devin, GitHub Copilot, Claude Code, or similar., • Knowledge of Agile methodologies such as Scrum or Kanban., • Experience in banking, financial services, or consulting environments. 🌟 What We Offer • Opportunity to work on financial technology and Market Risk projects using Java and C++., • Exposure to complex risk engines and critical financial systems., • Remote work model., • Competitive salary and comprehensive benefits package., • Training, certifications, and continuous learning opportunities., • Flexible retribution options, including meal vouchers, transportation, childcare, and private health insurance., • Collaborative, international, and technology-driven environment., • Access to modern AI development tools and engineering practices., • Opportunities for professional growth within an international consulting environment. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver high-impact solutions tailored to our clients' needs. With offices in Spain, Argentina, Mexico, Brazil, and the United States, and projects across Europe and the UK, we partner with leading organizations to solve complex business and technology challenges while fostering the professional growth of our teams. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity.

En Qaracter, somos una firma multinacional de consultoría bancaria con un fuerte enfoque tecnológico y operacional/funcional. Tenemos oficinas en España, Argentina, México, Brasil y Estados Unidos, y proyectos en toda Europa y el Reino Unido. Donde trabajamos codo a codo con las principales instituciones bancarias para abordar desafíos complejos, vanguardistas y generar un impacto real. Actualmente estamos buscando un/a Java Backend Developer con experiencia en Spring Boot y en Apache Cassandra. Responsabilidades • Diseñar, desarrollar y mantener servicios backend utilizando Java y frameworks asociados (Spring Boot, Spring Cloud, etc.)., • Implementar y consumir APIs REST., • Desplegar y operar aplicaciones en entornos OpenShift., • Colaborar con equipos frontend que utilizan React para garantizar una correcta integración de los servicios., • Participar en revisiones de código, pruebas unitarias e integración continua., • Analizar incidencias y proponer mejoras de rendimiento, escalabilidad y seguridad. Requisitos • Experiencia demostrable en desarrollo backend con Java., • Conocimientos de Spring Boot y arquitecturas basadas en microservicios., • Experiencia trabajando con Cassandra., • Conocimientos de contenedores Docker y plataformas OpenShift, • Experiencia en diseño y desarrollo de APIs REST., • Manejo de herramientas de control de versiones (Git)., • Conocimiento de metodologías ágiles (Scrum/Kanban). Valorable • Experiencia en desarrollo frontend con React., • Conocimientos de CI/CD (GitHub Actions)., • Experiencia en entornos cloud (AWS, Azure). 🌟 Qué ofrecemos • Contrato indefinido en España., • Posibilidad de trabajar de forma remota., • Integración en equipos internacionales con un nivel de desarrollo de código complejo y desafiante dentro del sector bancario con clientes líderes a nivel mundial., • Paquete completo de beneficios: Restaurante Ticket / Capacitación y acceso a certificaciones / Remuneración flexible (transporte, cuidado de niños, seguro médico, etc.), • Resto de conceptos en bienestar personal y profesional de nuestra organización como ligas deportivas, ponencias de expertos, trainings a través de Cloudera, etc., • Evaluación de rendimiento anual con valoraciones de categoría y salario. 🌍 Sobre Qaracter Qaracter es una consultora internacional que ofrece servicios de asesoramiento en negocio, finanzas, riesgos, tecnología y operaciones. Combinamos un profundo conocimiento sectorial con una ejecución práctica para generar un impacto tangible. Con presencia en España, Argentina, México, Brasil y Estados Unidos —y actividad en Europa y Reino Unido— colaboramos con organizaciones líderes para impulsar la transformación y la innovación. 🟦 Declaración de Igualdad de Oportunidades En QARACTER Group estamos comprometidos con garantizar la igualdad de oportunidades y la no discriminación en todos nuestros procesos, promoviendo un entorno laboral inclusivo y diverso. Todas las candidaturas son bienvenidas, independientemente del sexo, género, identidad o expresión de género, orientación sexual, origen, etnia, edad, discapacidad o cualquier otra condición personal o social, en línea con nuestro Plan de Igualdad y nuestro compromiso con la equidad. https://www.qaracter.es/es/tratamientos-de-datos-candidatos

Are you a software developer with experience in Java, C++, and Linux and an interest in Market Risk? Do you enjoy working close to the engine, investigating complex calculations, debugging technical issues, and contributing to targeted developments? At Qaracter, we're looking for a Java / C++ Developer to join a technology team working on financial risk solutions. You will combine Java development with C++ debugging and troubleshooting, helping ensure the reliability, performance, and security of critical risk applications. This is an excellent opportunity for developers who enjoy solving complex technical problems, working with financial systems, and gaining deeper exposure to Market Risk environments. 🔍 What You'll Do • Develop and maintain Java applications, implementing targeted developments and addressing identified vulnerabilities., • Debug and analyze C++ engine traces to investigate calculation discrepancies, unexpected behavior, and technical errors., • Perform small-scale developments and adjustments in C++ when required., • Analyze and troubleshoot issues across both Java and C++ components., • Use Git for version control and collaborate with other developers throughout the development lifecycle., • Work in Linux environments, performing basic administration, troubleshooting, and application support tasks., • Investigate technical incidents and help identify the root cause of calculation or application errors., • Apply knowledge of Market Risk concepts to understand and troubleshoot business and technical requirements., • Participate in code reviews, technical discussions, testing, and maintenance activities., • Work with AI-powered development tools such as Devin to support development and problem-solving activities. ✔️ What We're Looking For • 2+ years of professional experience in software development., • Strong knowledge of Java., • Experience with C++, particularly for debugging and troubleshooting., • Basic to intermediate knowledge of Linux environments., • Experience with Git and version control workflows., • Strong debugging and problem-solving skills across Java and C++ applications., • Knowledge or experience in Market Risk or financial risk systems., • Ability to investigate application behavior through logs, traces, and debugging tools., • Comfortable working on both development and maintenance tasks., • English level B2 or higher is highly valued. ⭐ Nice to Have • Previous experience working with Market Risk engines or financial risk platforms., • Experience troubleshooting complex numerical calculations or financial models., • Familiarity with security practices and vulnerability remediation in Java applications., • Experience with CI/CD environments and automated testing., • Experience working with AI-assisted development tools such as Devin, GitHub Copilot, Claude Code, or similar., • Knowledge of Agile methodologies such as Scrum or Kanban., • Experience in banking, financial services, or consulting environments. 🌟 What We Offer • Opportunity to work on financial technology and Market Risk projects using Java and C++., • Exposure to complex risk engines and critical financial systems., • Remote work model., • Competitive salary and comprehensive benefits package., • Training, certifications, and continuous learning opportunities., • Flexible retribution options, including meal vouchers, transportation, childcare, and private health insurance., • Collaborative, international, and technology-driven environment., • Access to modern AI development tools and engineering practices., • Opportunities for professional growth within an international consulting environment. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver high-impact solutions tailored to our clients' needs. With offices in Spain, Argentina, Mexico, Brazil, and the United States, and projects across Europe and the UK, we partner with leading organizations to solve complex business and technology challenges while fostering the professional growth of our teams. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Plan de Igualdad and our commitment to equity.

Are you passionate about backend engineering, API architecture, and the future of AI-native software delivery? At Qaracter, we are looking for an AI-Native Backend/API Technical Lead to join strategic technology initiatives within a leading international organization and contribute to a global Banking-as-a-Service (BaaS) platform across Payments, Collections, and Cash Management. This role combines strong backend/API engineering expertise with the ability to supervise and validate autonomous engineering workflows. You will work with technologies such as Java, Spring Boot, Python, Kafka, Kubernetes, and cloud platforms while leveraging AI tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay to accelerate the software delivery lifecycle. AI will support activities such as technical design, code generation, testing, documentation, code review, defect analysis, and quality assurance. As the Technical Lead, you will remain accountable for ensuring that AI-assisted outputs are technically sound, secure, tested, traceable, maintainable, and production-ready. 🔍 What You'll Do • Lead and supervise the end-to-end technical delivery of secure, scalable, and maintainable Backend/API capabilities., • Analyze functional requirements and translate them into clear technical specifications, solution designs, implementation plans, and acceptance criteria., • Design, develop, and review backend services using Java 21+, Spring Boot 3, Python 3.11+, and FastAPI where appropriate., • Design and document RESTful APIs using OpenAPI 3.1 and event-driven flows using AsyncAPI., • Supervise autonomous engineering workflows using tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay., • Define clear technical context and agent-executable instructions to enable reliable AI-assisted implementation., • Review and validate AI-generated technical designs, code, unit tests, documentation, test results, quality reports, and release-readiness evidence., • Identify and challenge unclear, oversized, incomplete, or technically weak requirements before autonomous execution begins., • Correct AI-generated outputs directly or through structured prompting and controlled re-execution., • Ensure traceability across requirements, prompts, tasks, code changes, tests, defects, documentation, and release evidence., • Design and supervise event-driven architectures using Apache Kafka, Kafka Streams, and Confluent Schema Registry., • Apply secure-by-design practices using OAuth 2.1, OpenID Connect, mTLS, JWT, Azure Key Vault, and HashiCorp Vault., • Build, deploy, troubleshoot, and maintain services using Docker, Kubernetes, GitHub Actions, and ArgoCD., • Collaborate with Platform teams on Terraform and Packer infrastructure-as-code initiatives., • Ensure appropriate observability, monitoring, distributed tracing, and AIOps instrumentation using technologies such as Datadog, Dynatrace, Prometheus, and ELK., • Ensure backend/API solutions meet enterprise standards for security, performance, scalability, observability, maintainability, and reliability., • Support application deployment, production troubleshooting, PRE/PRO readiness, and operational handover., • Collaborate with Product, Architecture, QA, Platform, Security, Infrastructure, AI Engineering, and Governance teams., • Contribute to continuous improvement of AI-assisted software engineering practices and reusable agent playbooks., • Ensure alignment with PSD2, GDPR, DORA, internal security standards, and enterprise AI governance., • Maintain a positive, proactive, and collaborative approach within an international engineering environment. ✔️ What We're Looking For • Minimum 4 years of professional experience in Backend/API Engineering, Technical Leadership, Platform Engineering, or a similar role., • Strong hands-on experience with Java 17+ / Java 21 and Spring Boot 3., • Strong experience developing REST APIs, microservices, and enterprise backend services., • Practical experience with Python 3.11+ and FastAPI., • Strong understanding of API lifecycle management, API security, API governance, and enterprise integration patterns., • Experience with Apache Kafka, Kafka Streams, schema registries, and event-driven architectures., • Hands-on experience with PostgreSQL, Redis, and preferably DynamoDB., • Experience with Docker, Kubernetes, AKS/GKE, CI/CD, and GitOps., • Experience with GitHub Actions, ArgoCD, Terraform, and preferably Packer., • Knowledge of API Management platforms such as Apigee Hybrid and/or Azure API Management., • Strong understanding of OAuth 2.1, OIDC, JWT, mTLS, and enterprise secrets management., • Experience with observability, monitoring, distributed tracing, AIOps, and static analysis., • Experience with automated testing, code quality, security scanning, defect analysis, and release-readiness processes., • Experience supervising, reviewing, or quality-assuring AI-assisted software engineering outputs., • Comfortable working with autonomous engineering tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, or similar., • Ability to create clear technical instructions, prompts, implementation context, acceptance criteria, and validation criteria for AI-assisted workflows., • Experience working in Payments, Banking-as-a-Service, Collections, Cash Management, or financial services is strongly preferred., • Experience working in regulated environments with GDPR, PSD2, DORA, or equivalent frameworks., • Strong analytical and problem-solving skills, with the ability to identify weaknesses in AI-generated designs, code, tests, and documentation., • Strong communication and collaboration skills., • English and Spanish: professional working proficiency. ⭐ Nice to Have • Experience with RAG architectures, vector databases, semantic caching, LangChain, LangGraph, or equivalent frameworks., • Experience with LLMOps, prompt engineering, AI-assisted SDLC, and enterprise AI governance., • Experience with Confluent Platform and schema evolution governance., • Experience with service mesh technologies such as Istio or Linkerd., • Experience with automated code review, AI-generated testing, test result validation, and defect triage., • Experience creating reusable AI agent playbooks, prompt-driven automations, and scheduled agent workflows., • Experience supporting PRE/PRO readiness, production deployment, and operational handover., • Experience mentoring engineers in AI-assisted development practices., • Experience working with large-scale enterprise or international technology environments., • Experience within Agile/Scrum engineering teams. 🌟 What We Offer • Opportunity to work on challenging Backend/API and AI-native engineering initiatives with high business impact., • Opportunity to contribute to a global BaaS platform across Payments, Collections, and Cash Management., • Exposure to modern backend technologies, cloud platforms, event-driven architectures, and autonomous engineering tools., • Opportunity to shape and improve AI-assisted software delivery practices within an enterprise environment., • Collaborative and international engineering environment., • Long-term project opportunities with continuous learning and professional development., • Remote work opportunity from Spain., • Competitive compensation package. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver real impact. With presence in Spain, Argentina, Mexico, Brazil, and the United States, and activity across Europe and the UK, we partner with top-tier organizations on complex transformation initiatives. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Equal Opportunity Plan and our commitment to equity.

Are you passionate about backend engineering, API architecture, and the future of AI-native software delivery? At Qaracter, we are looking for an AI-Native Backend/API Technical Lead to join strategic technology initiatives within a leading international organization and contribute to a global Banking-as-a-Service (BaaS) platform across Payments, Collections, and Cash Management. This role combines strong backend/API engineering expertise with the ability to supervise and validate autonomous engineering workflows. You will work with technologies such as Java, Spring Boot, Python, Kafka, Kubernetes, and cloud platforms while leveraging AI tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay to accelerate the software delivery lifecycle. AI will support activities such as technical design, code generation, testing, documentation, code review, defect analysis, and quality assurance. As the Technical Lead, you will remain accountable for ensuring that AI-assisted outputs are technically sound, secure, tested, traceable, maintainable, and production-ready. 🔍 What You'll Do • Lead and supervise the end-to-end technical delivery of secure, scalable, and maintainable Backend/API capabilities., • Analyze functional requirements and translate them into clear technical specifications, solution designs, implementation plans, and acceptance criteria., • Design, develop, and review backend services using Java 21+, Spring Boot 3, Python 3.11+, and FastAPI where appropriate., • Design and document RESTful APIs using OpenAPI 3.1 and event-driven flows using AsyncAPI., • Supervise autonomous engineering workflows using tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, and xRay., • Define clear technical context and agent-executable instructions to enable reliable AI-assisted implementation., • Review and validate AI-generated technical designs, code, unit tests, documentation, test results, quality reports, and release-readiness evidence., • Identify and challenge unclear, oversized, incomplete, or technically weak requirements before autonomous execution begins., • Correct AI-generated outputs directly or through structured prompting and controlled re-execution., • Ensure traceability across requirements, prompts, tasks, code changes, tests, defects, documentation, and release evidence., • Design and supervise event-driven architectures using Apache Kafka, Kafka Streams, and Confluent Schema Registry., • Apply secure-by-design practices using OAuth 2.1, OpenID Connect, mTLS, JWT, Azure Key Vault, and HashiCorp Vault., • Build, deploy, troubleshoot, and maintain services using Docker, Kubernetes, GitHub Actions, and ArgoCD., • Collaborate with Platform teams on Terraform and Packer infrastructure-as-code initiatives., • Ensure appropriate observability, monitoring, distributed tracing, and AIOps instrumentation using technologies such as Datadog, Dynatrace, Prometheus, and ELK., • Ensure backend/API solutions meet enterprise standards for security, performance, scalability, observability, maintainability, and reliability., • Support application deployment, production troubleshooting, PRE/PRO readiness, and operational handover., • Collaborate with Product, Architecture, QA, Platform, Security, Infrastructure, AI Engineering, and Governance teams., • Contribute to continuous improvement of AI-assisted software engineering practices and reusable agent playbooks., • Ensure alignment with PSD2, GDPR, DORA, internal security standards, and enterprise AI governance., • Maintain a positive, proactive, and collaborative approach within an international engineering environment. ✔️ What We're Looking For • Minimum 4 years of professional experience in Backend/API Engineering, Technical Leadership, Platform Engineering, or a similar role., • Strong hands-on experience with Java 17+ / Java 21 and Spring Boot 3., • Strong experience developing REST APIs, microservices, and enterprise backend services., • Practical experience with Python 3.11+ and FastAPI., • Strong understanding of API lifecycle management, API security, API governance, and enterprise integration patterns., • Experience with Apache Kafka, Kafka Streams, schema registries, and event-driven architectures., • Hands-on experience with PostgreSQL, Redis, and preferably DynamoDB., • Experience with Docker, Kubernetes, AKS/GKE, CI/CD, and GitOps., • Experience with GitHub Actions, ArgoCD, Terraform, and preferably Packer., • Knowledge of API Management platforms such as Apigee Hybrid and/or Azure API Management., • Strong understanding of OAuth 2.1, OIDC, JWT, mTLS, and enterprise secrets management., • Experience with observability, monitoring, distributed tracing, AIOps, and static analysis., • Experience with automated testing, code quality, security scanning, defect analysis, and release-readiness processes., • Experience supervising, reviewing, or quality-assuring AI-assisted software engineering outputs., • Comfortable working with autonomous engineering tools such as Devin, Claude, GitHub Copilot, ChatGPT Enterprise, Azure AI, or similar., • Ability to create clear technical instructions, prompts, implementation context, acceptance criteria, and validation criteria for AI-assisted workflows., • Experience working in Payments, Banking-as-a-Service, Collections, Cash Management, or financial services is strongly preferred., • Experience working in regulated environments with GDPR, PSD2, DORA, or equivalent frameworks., • Strong analytical and problem-solving skills, with the ability to identify weaknesses in AI-generated designs, code, tests, and documentation., • Strong communication and collaboration skills., • English and Spanish: professional working proficiency. ⭐ Nice to Have • Experience with RAG architectures, vector databases, semantic caching, LangChain, LangGraph, or equivalent frameworks., • Experience with LLMOps, prompt engineering, AI-assisted SDLC, and enterprise AI governance., • Experience with Confluent Platform and schema evolution governance., • Experience with service mesh technologies such as Istio or Linkerd., • Experience with automated code review, AI-generated testing, test result validation, and defect triage., • Experience creating reusable AI agent playbooks, prompt-driven automations, and scheduled agent workflows., • Experience supporting PRE/PRO readiness, production deployment, and operational handover., • Experience mentoring engineers in AI-assisted development practices., • Experience working with large-scale enterprise or international technology environments., • Experience within Agile/Scrum engineering teams. 🌟 What We Offer • Opportunity to work on challenging Backend/API and AI-native engineering initiatives with high business impact., • Opportunity to contribute to a global BaaS platform across Payments, Collections, and Cash Management., • Exposure to modern backend technologies, cloud platforms, event-driven architectures, and autonomous engineering tools., • Opportunity to shape and improve AI-assisted software delivery practices within an enterprise environment., • Collaborative and international engineering environment., • Long-term project opportunities with continuous learning and professional development., • Remote work opportunity from Spain., • Competitive compensation package. 🌍 About Qaracter Qaracter is an international consulting firm providing business, financial, risk, technology, and operations advisory services. We combine deep industry knowledge with hands-on execution to deliver real impact. With presence in Spain, Argentina, Mexico, Brazil, and the United States, and activity across Europe and the UK, we partner with top-tier organizations on complex transformation initiatives. 🟦 Equal Opportunity Statement At QARACTER Group, we are committed to ensuring equal opportunities and non-discrimination in all our processes, promoting an inclusive and diverse work environment. All applications are welcome regardless of sex, gender, gender identity or expression, sexual orientation, origin, ethnicity, age, disability, or any other personal or social condition, in line with our Equal Opportunity Plan and our commitment to equity.

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