Senior Golang Backend Software Engineer, Message squad at diabolocom

About Diabolocom Diabolocom enables organizations worldwide to build brand loyalty and drive sales growth through an innovative, cloud-based contact center platform. Our solution leverages AI-driven technologies to deliver exceptional customer experiences, combining premium voice quality, real-time analytics, and global scalability. We integrate seamlessly with leading CRMs and provide a rich set of APIs and services in multiple languages. With offices across Europe, the USA, Brazil, and the UAE, and more than 350 clients operating in over 60 countries, Diabolocom is experiencing strong international growth. As part of this expansion, we are strengthening our engineering team and are looking for a Senior Golang Software Engineer to join our Message Squad. About the Team – Message Squad The Message Squad builds and maintains services that enable communication across multiple text-based channels. Initially focused on email, the team is now expanding into a broader messaging platform integrating channels such as WhatsApp, SMS, and social networks. Team composition: 7 backend engineers 2 QA engineers Tech Stack Languages: Golang (80%), Java (20%) Database: PostgreSQL Messaging: RabbitMQ Caching: Redis Infrastructure: Docker, Kubernetes Observability: Grafana, Prometheus, Loki Key Focus Areas Enhancing messaging features (templates, quick replies, voice messages) Building a unified ticketing system for multi-channel communication Collaborating with other squads on cross-functional features Requirements 5+ years of experience in software development within product-focused companies (B2B or B2C) 2+ years of hands-on experience with Golang Strong experience with relational databases (preferably PostgreSQL) Experience with message brokers (preferably RabbitMQ) Experience with caching systems (preferably Redis) Experience with libraries such as gin-gonic, go-jet, amqp091, gRPC Experience with microservices architecture and API design Ability to make architectural decisions and evaluate trade-offs (performance, scalability, reliability) Strong autonomy and leadership potential, with willingness to grow into a lead role Comfortable working with and improving existing (including legacy) codebases Strong engineering culture, attention to detail, and product mindset Fluent in English Valuable assets Experience with Java / Spring Experience designing and building distributed systems Familiarity with cloud-native infrastructure and CI/CD tools (Docker, Kubernetes) What We Offer A collaborative and multicultural environment focused on innovation and knowledge sharing The opportunity to work on a real product with global impact Work on large-scale, real-time, mission-critical systems Clear career growth opportunities and increasing ownership High-quality IT equipment of your choice Flexible working hours and remote work options Recruitment Process Introductory call with Talent Acquisition Live coding session with a Lead Software Engineer (1 hour) System design interview with a Lead Software Engineer (1.5 hours, screen sharing) Final cultural fit interview with the Head of Software Engineering (1 hour)