Software Development Team Lead; Java​/Kotlin

About Diabolocom

Diabolocom enables organizations worldwide to build brand loyalty and drive sales growth. Our innovative,cloud-based contact center solution leverages AI-driven technologies to optimize the customer experience. We empower Customer Service and Sales teams to handle inbound and outbound interactions seamlessly across multiple channels, ensuring premium voice quality, real-time analytics, and robust global scalability.

Our platform integrates with leading CRMs and offers a wide range of APIs and services in multiple languages. With offices in Europe, the USA, Brazil, and the UAE, and 350+ clients operating in 60+ countries, we are constantly evolving and seeking talented individuals to join our team.

As part of our exponential growth, we are strengthening our internal engineering team and opening a Team Lead position in our Auxiliary Squad
.

We are looking for a Software Development Team Lead who can drive the architectural vision, guide a multidisciplinary team, and ensure timely delivery of high-quality solutions. In this role, you will lead a squad of engineers, collaborate closely with product owners, and apply best practices to build scalable, high-performing applications that meet complex technical and business requirements.

Your focus will be on delivering robust solutions, mentoring team members, and maintaining a strong engineering culture. You will contribute hands‑on to development tasks: back‑end microservices in Java and Kotlin, Angular front‑end, containerized deployments - while continuously improving systems design, code quality, and team efficiency.

The team is responsible for the Scenario service - our core no‑code platform that empowers customers to create sophisticated processing pipelines for phone calls, emails, and SMS messages using intuitive block‑based programming. Our users construct complex, highly customizable scenarios that enable automated and efficient communication workflows. These scenarios often involve extensive logic and functionality, running asynchronously to provide maximum flexibility and performance.

Additionally, the team manages critical internal infrastructure services such as Authentication
, API Gateway
, and API Proxy
. These components require exceptional stability, scalability, and efficiency, as they form the backbone of secure and reliable communication between services.

Languages: Java, Kotlin

Framework: Spring Boot

Database: PostgreSQL

Message Broker: RabbitMQ

Caching: Redis

Containerization: Docker

• 3 backend developers
• 1 QA engineer

• 15+ years in software development within product-focused companies, with at least 5+ years working extensively in Java or Kotlin.
• 3+ years in a people management role.
• Experience working with relational databases (Postgre
  
  SQL preferred).
• Experience with Spring Boot Framework.
• Experience in designing and implementing effective distributed systems.
• Ability to make architectural decisions and evaluate their impact on system performance, scalability, and reliability.
• Strong engineering culture, attention to detail, and business-centric mindset.

• A collaborative and innovative team environment.
• The opportunity to work on cutting‑edge distributed communication systems.
• Career growth opportunities within a fast-growing global company.
• Flexible work arrangements and remote work options.
• A supportive team that values innovation and knowledge‑sharing.

• Technical challenge on Hacker Rank platform
• Intro call with a Talent Acquisition Manager
• Live coding challenge with one of our Team Leads
• Design interview with one of our Team Leads
• Final interview with Alexander, our Head of Software Engineering