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# Backend Software Engineer - Ruby

- **Company:** Chronos Consulting
- **Location:** Málaga, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, Amazon Web Services, Amazon S3, Server Applications, Microsoft Azure, Batch Processing, Software Quality, Code Review, Databases, Data Integration, Data Security, Database Design, Software Debugging, DevOps, Amazon DynamoDB, PostgreSQL, Message Broker, Network Programming, Network Protocols, Ruby on Rails, Redis, Ruby, SQL Databases, Web Applications, Google Cloud, Enterprise Software Applications, Load Balancing, Caching, Backend, Kubernetes, Information Technology, Apache Kafka, Vertica, Restful APIs, Webhooks, Data Pipelines, Docker, Golang, Microservices
- **Published:** October 4, 2026
- **Apply:** https://www.adzuna.es/details/5910726801

## About the Role

These are full-time, permanent positions offering highly competitive compensation and benefits.MUST-HAVE REQUIREMENTS Strong experience in building scalable distributed backend applications (5+ years).
Great understanding of all building blocks of large web applications: databases, load balancers, application servers, message brokers, caching, monitoring, etc.
Good understanding of network protocols and stacks.
Good understanding of DB technologies: classic databases and modern no-SQL.
Knowledge of basic data structures and algorithms and how they are used is a must.
Multilingual programming experience: our code base is primarily in Ruby, with a trend to migrate to GOlang and Rust.
Excellent debugging, analytical, problem-solving, and social skills.
BS/MS degree in Computer Science, Engineering, or a related subject, 7+ years of industry experience.
Readiness to work remotely with teams distributed across the world and time zones occasionally.
ADVANTAGE IF YOU HAVE
1) Background in GOlang and/or Rust.
2) Background in network programming.
3) Background in applications and data security.
4) Deep knowledge of physical DB design.
5) Experience working with Docker and other isolation technologies.
6) Experience working with public cloud infrastructure providers such as AWS/Azure/Google Cloud.
7) Experience in related fields (DevOps, ML, DBA, Enterprise applications, etc.).
8) Experience in building/deploying data processing pipelines is a plus.
9) Experience working with third-party REST APIs at scale (request throttling, batch processing, etc.).
RESPONSIBILITIES Build/extend/troubleshoot/fix complex heterogeneous GOlang and Ruby applications, as well as small self-contained GOlang microservices.

## Description

We are looking for exceptional Senior Backend Software Engineers (Tech stack: Ruby/ RoR, PostgreSQL, Redis, Kafka, k8s) to join the team that develops and maintains everything related to recipe execution: DSL, pulling events, processing webhooks, and executing jobs.
It has various aspects: performance, scaling, storage, durability, atomicity, concurrency guarantees, data protection, and encryption., Improve execution engine of custom third-party code (Ruby DSL, isolation, performance, new features).
Write well-designed, testable, efficient code in Ruby and GOlang.
Integration of data storage solutions.
Postgres/S3/DynamoDB/Kafka/ClickHouse, etc.
Contribute to all phases of the development lifecycle.
Provide code reviews to your teammates.
Evaluate and propose improvements to the existing system.
Identify bottlenecks and bugs, and devise solutions to these problems.
Help maintain code quality, organization, and automatization.
You can anticipate working with Rust and Wasm in the future.
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