Senior Backend Software Engineer, Voice Squad

Paris / Barcelona / Belgrade / Tbilisi / Podgorica / Yerevan / Portugal +2 locations abroad·Full-time·Added 4 months ago

Diabolocom

6 open roles

What they offer

  • Full-time hours

    Per the ad.

  • Fully remote

    Per the ad.

What they ask for

  • Have the right to work in Spain

    Diabolocom doesn't mention sponsorship in the ad.

  • Work in English

    English is required, per the ad.

This job was published 4 months ago

The role

About Diabolocom

Diabolocom is a leading European provider of AI-first, cloud-based contact centre (CCaaS) and customer experience (CX) solutions that help companies deliver seamless, personalised customer experiences at scale. The platform combines proprietary, purpose-built AI technology for customer service, native telecom infrastructure, and deep CRM integrations to automate tasks, elevate data quality, and empower agents across all customer touchpoints.
Trusted by 400+ clients, with deployments across more than 60 countries in Europe, North America, South America, and the Middle East, Diabolocom combines the agility of SaaS innovation with carrier-grade voice performance. With eight offices worldwide and more than two decades of experience, the company is committed to advancing customer loyalty and growth through sovereign, intelligent, and scalable communication technology.
In the context of our exponential growth, we are strengthening our internal engineering team and opening a Senior Backend Software Engineer position in our Voice Squad.

About the Voice Squad

Voice Squad is the software core of our CCaaS telephony. It is responsible for the core technical services that ensure secure, high-performance processing of phone calls on the Diabolocom platform. It manages critical components related to call routing, media stream handling and other voice related services.
Voice provides information to all parts of the system to help our clients observe agents and their business in general.

What's next for the Voice Squad?

In the coming year, we plan to:
Introduce Telephony as a Service that will be part of Omni-channel as a Service.
Perform massive optimization and refactoring to enable faster feature delivery.

Technical Stack

Languages: Java 25, Kotlin 1.9, Go
Framework: Spring Boot 3.x.x
Database: PostgreSQL
Message Broker: RabbitMQ
Caching: Redis
Containerization: Docker

The team currently consists of

3 QA engineers
5 backend developers
1 team lead

What We're Looking For

7+ years in software development within product-focused companies, with at least 3+ years working extensively with Java/Kotlin.
Experience working with relational databases (PostgreSQL preferred).
Experience with Spring Boot would be a plus.
Experience in designing and implementing effective distributed systems. Ability to make architectural decisions and evaluate their impact on system performance, scalability, and reliability.
Strong autonomy and leadership potential, with a willingness to grow into a lead role.
Comfortable working with and improving an existing codebase.
Strong engineering culture, attention to the details, business-centric mindset.

What We Offer

A collaborative and multicultural environment with a team that fosters professionalism, values innovation, and encourages knowledge-sharing.
Work on cutting-edge distributed communication systems in a fast-growing company, with real opportunities to make an impact.
Opportunities to take on new challenges and advance your career.
High-quality IT equipment of your choice.
Flexible work arrangements and remote work options.
Regular team-building events.

Recruitment Process

Intro call with a Talent Acquisition Manager
Live coding challenge
Design interview through screen sharing with our Lead Software Engineer
Final interview with Alexander, our Head of Software Engineering

About Diabolocom

Diabolocom is a software company specializing in cloud-based contact center solutions, offering a platform for customer service and sales teams. The company operates across multiple European locations, with a significant presence in Paris, Barcelona, and other major cities, and its current job openings focus on software engineering, project management, and marketing roles.

Industry
Software
Headquarters
Paris, France
In Spain
Barcelona

Good to know if you are moving

  • Offers remote and hybrid roles across Europe, including Spain, Germany, Portugal, and multiple Eastern European countries.
  • Open positions in Barcelona and Paris indicate a strong European footprint, with potential for cross-border collaboration.
  • The company uses AI tools in hiring, but final decisions are made by humans, ensuring a transparent recruitment process.
  • Roles span engineering, project management, and marketing, providing diverse opportunities for international professionals.
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