Senior Golang Backend Software Engineer, Integration Squad

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 in Europe, the USA, Brazil, and the UAE, and more than 350 clients operating across 60+ countries, Diabolocom is in a phase of 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 Integration Squad
.

The Integration Squad is responsible for building and evolving services that connect Diabolocom with external systems, primarily CRMs such as Salesforce, Zendesk
, and others.

A major focus for the coming period is the extension of Salesforce Voice integration
, opening significant new market opportunities. In parallel, the team is actively working on embedding AI-driven capabilities into our integration services to further enhance the customer experience.

As a Senior Backend Engineer in the Integration Squad, you will:

• Design, develop, and maintain backend services written primarily in Golang
• Build and evolve integrations with external CRM systems
• Contribute to API design and service contracts
• Participate in architectural discussions and help shape technical decisions
• Ensure high code quality through testing, monitoring, and documentation
• Collaborate closely with frontend engineers, QA, product, and other backend teams
• Take ownership of features from design to production
• Act as a technical reference within the team, with potential to grow into a lead role

• Languages: Golang
• Databases: PostgreSQL
• Messaging: RabbitMQ
• Caching: Redis
• Containerization: Docker

• 1 QA Engineer
• 1 Backend Developer
• 2 Frontend Developers
• 1 Team Lead (Golang background)

• 5+ years of experience in software development within product-focused companies (B2B or B2C)
• At least 2+ years of hands-on experience with Golang
• Solid experience with relational databases (preferably PostgreSQL
  )
• Experience working with message brokers (ideally Rabbit
  
  MQ)
• Experience with caching solutions (ideally Redis)
• Familiarity with Golang libraries such as gin-gonic, go-jet, amqp
  091, grpc
• Strong understanding of microservice architectures and API design
• Ability to make and justify architectural decisions, balancing performance, scalability, and reliability
• High level of autonomy and ownership, with leadership potential
• Comfortable working with and improving existing and legacy codebases
• Strong engineering mindset, attention to detail, and business- / user-oriented approach
• Fluent English (written and spoken, B2+)

• Experience with Java / Spring
• Background in distributed systems design
• Experience with Spring Boot (Java-based services)
• Exposure to cloud-native environments and CI/CD tooling (Docker, Kubernetes, etc.)

• A collaborative, multicultural environment that values professionalism, innovation, and knowledge sharing
• The opportunity to work on a real product used daily by customers worldwide, with clear real-world impact
• Work on large-scale, real-time, mission-critical communication systems, where reliability, performance, and technical excellence truly matter
• Clear growth paths with opportunities to take on increasing responsibility and influence technical decisions
• High-quality IT equipment of your choice
• Flexible working hours and remote work options

• Technical challenge (Hacker Rank)
• Introductory call with a Talent Acquisition Manager
• Live coding interview
• System design interview with the Lead Software Engineer (screen sharing)
• Final cultural fit interview with Alexander, Head of Software Engineering