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 (Ciudad de México)
🏢 Greymatter Innovationz
📍 Ciudad de México