Responsibilities

We are looking for an exceptional Senior Ruby/Rails Developer to join our growing Data Integration team.

You will be responsible to:

• Lead technical design discussions and architectural decisions for system improvements

• Mentor junior and mid-level developers on best practices and system internals

• Investigate and resolve complex production issues, especially those involving external dependencies

• Architect solutions for API reliability, monitoring, and performance

• Collaborate with DevOps and Infrastructure teams on system reliability and performance

• Document critical system behaviors and integration patterns

Expectations:

• Self-directed problem solver who can navigate ambiguous requirements

• Excellent debugging skills with ability to trace issues across multiple system layers and external services

• Strong written and verbal communication skills for technical documentation and cross-team collaboration

• Experience with large-scale refactoring projects and technical debt reduction

• Ability to balance technical excellence with pragmatic business needs

• Experience with CI/CD pipelines, monitoring, and production incident response

Nice to Have:

• Contributions to open-source Ruby projects

• Experience with Workato or similar iPaaS platforms

• Knowledge of enterprise integration patterns

• Understanding of compliance and security requirements in production systems

• Experience with webhook systems and event-driven architectures

Requirements

Mandatory technical expertise

Ruby & Ecosystem: Expert-level proficiency in Ruby with 5+ years of experience building and maintaining large-scale, production Ruby on Rails applications. Deep understanding of Ruby internals, metaprogramming, and performance optimization techniques.

Database:

• Advanced PostgreSQL expertise including complex query optimization, execution plan analysis, indexing strategies, and database performance tuning

• Proficiency in database internals: understanding of MVCC, transaction isolation levels, locking mechanisms, and replication strategies

• Experience with database scaling patterns: sharding, partitioning, read replicas, and connection pooling

• Ability to diagnose and resolve complex database performance issues in production environments

Systems:

• Deep understanding of distributed systems concepts and their practical implications

• Expertise in caching strategies at multiple layers (application, database, CDN)

• Experience with message queuing systems and understanding of distributed queue patterns (at-least-once, exactly-once delivery, dead letter queues)

• Proficiency in performance profiling, memory leak detection, and optimization of Ruby applications

• Understanding of concurrency models in Ruby and their appropriate use cases

Integrations:

• Deep understanding of HTTP client libraries, connection pooling, and timeout strategies (connection, read, write, idle timeouts)
• Expertise in authentication and authorization patterns: OAuth 2.0 flows, JWT, API keys, SAML, webhook signatures
• Experience with retry mechanisms, circuit breakers, and graceful degradation for third-party dependencies
• Proficiency in handling rate limiting, backpressure, and API quota management
• Understanding of common integration challenges: data synchronization, eventual consistency, idempotency

API Management:

• Understanding of API gateway patterns and routing strategies

• Familiarity with OpenAPI/Swagger specifications for API documentation

• Knowledge of API versioning strategies and backward compatibility

• Basic understanding of API monitoring and analytics

Codebase:

• Proven track record of working with and enhancing mature, established codebases

• Ability to understand and refactor complex systems while maintaining stability

• Experience in incremental improvement strategies and maintaining backward compatibility

• Skills in navigating through layers of abstraction to understand system behavior

Testing: Expert-level testing skills including RSpec, with emphasis on testing complex integrations, creating test harnesses for external dependencies, and maintaining high test coverage in established systems.

Preferred Skills

Infrastructure:

• Understanding of Docker and Kubernetes for containerized deployments

• Understanding of infrastructure as code (Terraform, Ansible)

• Understanding of observability tools (Prometheus, Grafana, ELK stack)

Data:

• Redis expertise

• ClickHouse or similar columnar databases for analytics workloads

• Experience with event streaming platforms (Kafka)

Background processing: Advanced experience with Sidekiq internals, custom middleware, performance tuning, and handling high-throughput job processing scenarios.

Frontend: Basic understanding of JavaScript and modern UI frameworks (Angular, React, or Vue.js) sufficient for debugging full-stack issues and API integration points.

Req ID: 2239