Senior Golang Backend Software Engineer, Message squad at Diabolocom:

About

Diabolocom is the leading European provider of AI-first cloud contact center (CCaaS) and customer experience (CX) solutions that help organizations deliver seamless, personalized interactions at scale.

Our cloud platform combines proprietary AI technology, native telecom infrastructure, and deep CRM integrations to optimize contact center operations for medium to large companies. As a licensed telecom operator, we deliver carrier-grade voice quality, support high call volumes, and provide phone numbers worldwide.

Our AI services are purpose-built for customer relations, helping teams automate tasks, improve data quality, and enhance operational efficiency. These capabilities are fully integrated into our cloud contact center platform and are also available through multilingual APIs.

Diabolocom empowers Customer Service and Sales teams to manage both inbound and outbound interactions through an advanced dialer, while providing real-time monitoring, analytics, and seamless integrations with leading CRM systems.

Trusted by more than 400 clients and deployed in over 60 countries, Diabolocom operates from offices across Europe, the USA, Brazil, and the UAE. The company has been consistently recognized for innovation and leadership in AI-powered customer experience, including the 2024 Frost & Sullivan AI Leader award and the 2026 Frost & Sullivan Technology Innovation Leadership award.

Job Description

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)