Senior Developer – AI-Adjacent Applications

Greymatter Innovationz; Estado de México; On-site; MXN 900,000 - 1,500,000; Full time

Job summary

Greymatter Innovationz is seeking a Senior Developer / Technical Designer to lead hands-on development and the design of AI-enabled product applications. You’ll craft scalable services in Java/Spring Boot and Python, and guide integration of AI agents, LLMs, vector search and geospatial workflows.

Responsibilities span translating requirements into robust API designs, building microservices and event-driven interfaces, and ensuring secure, observable production deployments with CI/CD.

Qualifications

• 5–8 years of software/product engineering experience.
• Strong Java/Spring Boot and/or Python development.
• Good understanding of modern web technologies such as React/Angular and TypeScript.
• Microservices, REST APIs and distributed application design.
• AWS, Docker/Kubernetes and CI/CD.
• SQL/PostgreSQL plus experience with NoSQL or specialized data stores.
• Practical LLM/AI service integration experience.
• RAG, embeddings, vector search and context-management concepts.
• Agent integration, tool/function calling and familiarity with MCP.
• Experience working with graph/knowledge-graph technologies.
• Understanding of geospatial data, spatial databases and geospatial APIs.
• Neo4j, Amazon Neptune or equivalent graph technology.
• PostGIS or comparable geospatial platform.
• AI application testing, evaluation and observability.
• Experience with high-availability, data-intensive or operationally critical software.
• Aviation or related transportation domain experience.

Responsibilities

• Design and develop scalable application services using Java/Spring Boot and/or Python.
• Translate product and functional requirements into application, API and integration designs.
• Design microservice, REST and event-driven integrations across product components.
• Integrate LLM and AI services with existing application and data services.
• Design integrations with AI agents using tool/function calling, APIs and MCP-based interfaces.
• Design and implement RAG, vector search and context-retrieval patterns where required.
• Integrate graph and knowledge-graph services into application workflows.
• Design solutions involving geospatial datasets, spatial queries and location-based services.
• Define appropriate security, authentication, authorization and service-access controls.
• Support technical reviews, development standards, testing, deployment and production troubleshooting.
• Provide technical guidance to developers while remaining hands‑on with development.

Skills

Java/Spring Boot

Python

Web technologies (React/Angular, TypeS

Microservices & REST

AWS

Docker/Kubernetes

CI/CD

SQL/PostgreSQL

NoSQL/datastores

LLM/AI service integration

RAG and vector search

Graph/knowledge-graph tech

Geospatial data & PostGIS

Security/access controls

Tools

AWS

Docker

Kubernetes

CI/CD

PostgreSQL

Job description

The Senior Developer / Technical Designer will provide hands‑on development and technical design support for product applications incorporating AI, agent, graph and geospatial capabilities. The role combines strong application engineering experience with the ability to design and integrate AI‑related services into production software.

Key Responsibilities

• Design and develop scalable application services using Java/Spring Boot and/or Python.
• Translate product and functional requirements into application, API and integration designs.
• Design microservice, REST and event-driven integrations across product components.
• Integrate LLM and AI services with existing application and data services.
• Design integrations with AI agents using tool/function calling, APIs and MCP-based interfaces.
• Design and implement RAG, vector-search and context-retrieval patterns where required.
• Integrate graph and knowledge-graph services into application workflows.
• Design solutions involving geospatial datasets, spatial queries and location-based services.
• Define appropriate security, authentication, authorization and service-access controls.
• Support technical reviews, development standards, testing, deployment and production troubleshooting.
• Provide technical guidance to developers while remaining hands‑on with development.

Required Skills

• 5–8 years of software/product engineering experience.
• Strong Java/Spring Boot and/or Python development.
• Good understanding of modern web technologies such as React/Angular and TypeScript.
• Microservices, REST APIs and distributed application design.
• AWS, Docker/Kubernetes and CI/CD.
• SQL/PostgreSQL plus experience with NoSQL or specialized data stores.
• Practical LLM/AI service integration experience.
• RAG, embeddings, vector search and context-management concepts.
• Agent integration, tool/function calling and familiarity with MCP.
• Experience working with graph/knowledge-graph technologies.
• Understanding of geospatial data, spatial databases and geospatial APIs.
• Neo4j, Amazon Neptune or equivalent graph technology.
• PostGIS or comparable geospatial platform.
• AI application testing, evaluation and observability.
• Experience with high-availability, data-intensive or operationally critical software.
• Aviation or related transportation domain experience.