Senior Back-End Developer

4 days ago

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Dev.Pro

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B2B • Fintech • SaaS

Dev. Pro is a software development partner that supports technology companies with custom outsourced software development services. With over 13 years of experience, a team of more than 900 experts, and operations in over 50 countries, Dev. Pro provides a comprehensive range of services including cloud development, DevOps, software testing and QA, system integration, and application security. The company caters to a wide array of industries such as digital commerce, fintech, hospitality, and healthcare by delivering tailored software development experiences. Dev. Pro emphasizes quality, innovation, and a transparent collaboration process to accelerate growth for ambitious startups and Fortune 500 enterprises alike, ensuring successful outcomes through a well-balanced and efficient team approach.

501 - 1000 employees

Founded 2011

🤝 B2B

💳 Fintech

☁️ SaaS

📋 Description

• Design, build, and maintain backend services and features using Ruby on Rails • Design scalable systems capable of handling millions of records and high concurrency • Identify and fix performance bottlenecks in the database, application, and infrastructure • Implement background job processing with Sidekiq and Redis • Write automated tests using RSpec • Collaborate with the Engineering Manager and cross-functional teams to guide technical direction • Participate in code reviews, documentation, and planning sessions • Ensure high reliability and scalability of core services

🎯 Requirements

• 7+ years of commercial development experience, including 5+ years with production Ruby on Rails applications • Strong PostgreSQL or MySQL expertise, including schema design and query optimization • Experience with background jobs and asynchronous processing (Sidekiq, Redis) • Proven ability to design high-performance, scalable systems • Solid understanding of modern architectural patterns (SOA, event sourcing) • Experience collaborating asynchronously in fully remote teams • Track record of multi-year tenure in recent roles • **Desirable:** • Experience with message queues (Kafka, RabbitMQ) or search engines (Elasticsearch, Solr) • Familiarity with Docker, Kubernetes, and AWS/GCP • Experience optimizing performance in high-traffic applications • Working knowledge of JavaScript