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Descripción de la vacante
Sinch
de 60000 a 80000 €/año
España, España
Sinch is a Customer Communication Cloud company powering conversations across messaging voice and email helping businesses deliver personalized customer experiences at scale More than 150000 businesses including leading global tech companies rely on Sinch
We are building the next generation of conversational AI infrastructure As a Senior Java Software Engineer on the Agentic Orchestration Platform team you will design build and own core components that coordinate AI agents workflow execution and multichannel communication via SMS WhatsApp and voice at scale
This is a zero to one opportunity to build a new platform from the ground up You will work on complex problems with high autonomy as part of a small senior team with significant impact You will collaborate with Engineering Manager Tech Lead Product Manager Domain Architect and cross functional teams
Design and build core platform components with high ownership and autonomy
Drive system design and create technical proposals
Work on distributed event driven systems combining deterministic workflows and AI agent behavior
Write production grade software including clean maintainable code with tests and documentation Build systems that are observable debuggable and resilient
Own full lifecycle including design deployment monitoring and on call responsibilities
Follow build ship run approach
Develop platform components integrating LLMs and AI agents
Work with prompt management context handling function calling guardrails and error recovery
Address challenges like testing non deterministic systems fallback strategies latency and cost optimization
Contribute to engineering excellence through architecture discussions code reviews and standards definition
Mentor team members and share knowledge
Collaborate across teams with product and technical stakeholders
Provide technical guidance and trade offs and align solutions with business needs
Five to eight plus years of professional software engineering experience
Strong backend and platform skills including distributed systems microservices event driven architectures and cloud native design.
Ability to explain architectural trade offs clearly.
Strong engineering fundamentals including clean code testing strategies debugging production systems and building reliable long lasting systems
Experience with Java Spring AI TypeScript or React Deep expertise in at least two core backend technologies and willingness to learn others quickly
Experience using AI coding tools such as Copilot Claude Code Cursor or similar
Understanding benefits risks and best practices
Ability to work autonomously define scope and deliver solutions independently Strong decision making on prioritization
Experience with cloud and operations including AWS Docker Kubernetes CI CD GitOps infrastructure as code and monitoring
Strong communication skills with both technical and non technical stakeholders Fluent English required
Experience with Temporal and Kafka Experience with conversational AI LLMs or agent based systems Experience building platforms from scratch Background in CPaaS or communication platforms
The annual salary for this position is between between €60.000 until €80.000 Factors which may affect pay within this range may include skills, education, experience, and other qualifications
We are committed to ensuring a recruitment process that is fair, objective, consistent, and inclusive. Our approach includes structured, competency-based interviews designed to evaluate your skills, experience, and qualifications relevant to the role. At times, we may include a data-driven assessment to enhance our hiring success and identify candidates likely to excel.
We believe in a two-way process and encourage you to ask questions throughout the journey. If this role isn't what you're looking for, please explore the other opportunities listed on our career page: No matter who you are, we hope you find an exciting path forward - hopefully with us!