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Senior Backend Developer
Indeed
Full-time
Onsite
No experience limit
No degree limit
Carrer d'Aribau, 66, Eixample, 08011 Barcelona, Spain
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Job Summary: We are seeking a Founding Engineer to lead the architecture and development of a Generative AI Center of Excellence, transforming the financial industry. Key Highlights: 1. Technological pioneer in Agentic AI for finance. 2. Design and lead backend services and API architecture. 3. Be part of a global engineering network with mentorship. **Are you ready to become the architect of future financial intelligence?** --------------------------------------------------------------------------------- **Location:** Valencia, Spain (Hybrid) **Working Hours:** 09:00 \- 18:00 **Mission:** Founding Engineer of a Global Generative AI Hub At **Initium Software**, we are not looking for someone who simply writes code; we seek a technological pioneer. We have partnered with a leading financial services organization (FMI) to launch a **Generative AI Center of Excellence** in Valencia. Here, you will not only implement solutions—you will define the technical foundations of an Agentic AI platform that will transform the financial industry globally. If you seek an environment where your curiosity is the driving force and your impact is tangible from day one, this is your place. ### **Your Mission** As one of our founding engineers, you will take on the challenge to: * **Design and lead** high-performance backend services and API architecture using Node.js or .NET 8. * **Build the "brain"** of the platform by implementing multi-agent orchestrators (Mastra, Langgraph) and complex memory systems on Azure Cosmos DB. * **Master the data flow**, from massive ingestion via Azure Data Factory to implementation of semantic search capabilities using LightRAG and Azure Cognitive Search. * **Ensure excellence**, establishing LLM evaluation pipelines and applying security guardrails and validation through Azure Machine Learning. * **Shape the technical culture** of the Hub by participating in critical infrastructure decisions and promoting engineering best practices. ### **Requirements** ### **Your Arsenal (What We Seek in You)** To succeed in this role, you must possess: * **Solid Experience:** More than 5 years developing backend systems in high-availability production environments. * **Technical Mastery:** Expert-level proficiency in **Node.js** or **.NET 8 (ASP.NET Core / EF Core)**. * **Azure Ecosystem:** Practical experience with key services such as Azure OpenAI, Cognitive Search, ADF, and SQL/NoSQL databases. * **Cloud-Native Mindset:** Deep knowledge of containers (Docker, Kubernetes, AKS) and CI/CD practices. * **Languages:** Advanced English (C1\), as it is our working language for all documentation and technical ceremonies. ### **Especially Valued If You Also Have** * Experience with **Python and FastAPI** for agent tool development. * Worked with LLM orchestration frameworks such as **Langchain or Langgraph**. * Knowledge of agent-to-agent communication protocols (MCP, A2A). * Background in the **Fintech or financial services sector**. * Passion for learning, sharing ideas, and evolving alongside the team. ### **How We Measure Your Impact** * Effective alignment and execution of the new AI Hub’s strategic plan. * Monthly achievement of efficiency objectives for assigned projects. * Quality and robustness of the AI platform architecture from its earliest stages. ### **What We Offer You** * **Competitive salary** and stable employment contract. * **Hybrid work model** in Valencia, combining flexibility with in-person collaboration within a high-performing team. * **Culture of Autonomy:** An environment where your initiative is valued, your impact recognized, and your continuous growth supported. * **Technological Vanguard:** You will work with the most advanced Agentic AI tools applied to real-world use cases. * **Elite Community:** You will join a global engineering network with access to mentorship programs and career development opportunities. **"At Initium, we don’t just build technology—we create an environment where people can evolve, deliver value, and leave their mark."** If you seek a place where your code drives real transformation, **we want to meet you!** Apply now and let’s discuss the future we can build together.

Source:  indeed View original post
David Muñoz
Indeed · HR

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Indeed
David Muñoz
Indeed · HR
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