Lead DI Modernization Engineer Job Title: Lead DI Modernization Engineer
Key Skills: Elixir, RESTful APIs, Postgres, Kafka, AWS, DataDog, Claude, Git/GitHub Actions, Jira
Experience: 8+ years
Location Hermosillo or Mexico City
Mode: Hybrid

We are hiring Position with the following skill set.
Backend Engineering & System Design
~8+ years of backend software engineering experience
~ Designing and operating large-scale, highly available, distributed systems
~ Microservices architecture
~ Event-driven architecture
~ API design and development
~ Scalability, reliability, performance, and maintainability best practices
~ Strong software architecture and technical leadership capabilities
~ Elixir (Critical Requirement)
~2+ years of hands-on experience with Elixir
~ Deep understanding of the Elixir runtime/ecosystem
~ Building production-grade backend services using Elixir
~ Cloud & Infrastructure
~ Strong AWS experience
~ Docker containerization
~ Kubernetes orchestration
~ Production deployment, monitoring, and scaling
~ APIs & Service Communication
~ REST APIs
~ GraphQL
~ gRPC
~ Ability to select the appropriate protocol/pattern based on use case
~ Data Layer
~ PostgreSQL
~ Database design and optimization
~ Caching strategies
~ Messaging & Event Streaming
~ Kafka
~ Designing and operating Kafka-based systems at scale
~ Observability & Reliability
~ DataDog
~ Monitoring
~ Logging
~ Alerting




~ SLO/SLA-driven operations
~ DevSecOps
~ CI/CD pipelines
~ Automated testing
~ Secure software development practices
~ Security integration throughout the SDLC
~ Security
~ Secure API design
~ Access control
~ Data encryption
~ General application security principles
~ AI-Assisted Development
~ High proficiency with Claude Code or similar AI coding tools
~ Demonstrated use of LLMs to improve development productivity
~ Collaboration & Communication
~ Cross-functional collaboration
~ Technical documentation
~ Ability to communicate with both technical and non-technical stakeholders

2. Good-to-Have Skillset
These are valuable differentiators but appear secondary to the core backend/Elixir requirements:
Leadership & Strategic Thinking
Defining technical roadmaps
Long-term architecture planning
Domain ownership
Technical mentorship and guidance
Must Have
Elixir (2+ years)
Backend Engineering (8+ years)
AWS + Docker + Kubernetes
Kafka
PostgreSQL
REST / GraphQL / gRPC APIs
DataDog Observability
CI/CD + DevSecOps
Distributed Systems & Microservices
AI-assisted development (Claude Code or equivalent)

Nice to Have
Technical leadership/architecture ownership
Platform engineering mindset
Agile delivery experience
Advanced documentation practices
Reliability engineering and operational excellence
Cross-functional stakeholder management

📌 Lead Software Engineer - Backend (Hermosillo)
🏢 Greymatter Innovationz
📍 Hermosillo