Senior Golang Backend Software Engineer Performance 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 Performance Squad.

About The Performance Squad

Our mission is to accelerate product development by providing the libraries, CI/CD pipelines and services that comprise our internal platform. We design, build, and maintain the paved road that enables our developers to ship features faster. We handle the complexities of monitoring, stability and performance of systems so they can focus on shipping great features for our users.

Your Role & Responsibilities

As a Senior Backend Engineer in the Performance squad, you will:

• Build and evolve core libraries and SDKs in Golang that empower product teams to ship faster
• Shape and continuously improve our CI/CD pipelines, deployment workflows, and observability ecosystem
• Design scalable, high-performance systems that solve complex technical challenges
• Take ownership of our data layer, driving performance and scalability across PostgreSQL and Redis
• Partner closely with engineering, product, and operations teams to deliver platform capabilities that directly support business impact
• Lead technical initiatives and influence the architectural direction of our internal platform
• Strengthen system reliability and resilience, with involvement in on-call rotations for the infrastructure you help create

Our Technical Stack

Primary Languages: Golang

Databases: PostgreSQL (Primary), Redis

Infrastructure & Containerization: Docker, Docker-compose, Kubernetes, CI/CD (GitLab CI, ArgoCD)

Message Brokers: RabbitMQ

We’re looking for a strong backend engineer with solid product experience who enjoys building scalable systems and taking ownership of complex technical challenges.

• 7+ years of backend development experience in product-driven companies (B2B or B2C), including hands-on Golang experience
• Strong computer science fundamentals (data structures, algorithms, complexity) combined with practical system design skills — you understand how complex systems work, especially in distributed environments
• Comfortable working autonomously, owning projects end-to-end, and growing toward technical leadership
• Experience improving and evolving existing (including legacy) codebases
• Strong engineering mindset with attention to detail and a focus on real business and user impact
• Fluent English

Nice to Have

• Experience with additional programming languages (e.g. Java, Kotlin, or others)
• Background in distributed systems and large-scale architectures
• Experience with Spring Boot
• Familiarity with cloud-native environments and CI/CD tools (Docker, Kubernetes, etc.)
• Any experience with VoIP systems or related side projects

What We Offer

• Collaborate in a multicultural, professional environment that encourages innovation and knowledge sharing
• Work on a real product used daily by customers worldwide, with clear real-world impact
• Build and maintain large-scale, real-time, mission-critical communication systems where reliability and performance matter
• Grow through clear development paths with increasing responsibility and influence on technical decisions
• Choose the IT equipment that best supports your work
• Enjoy flexible working hours and remote work opportunities

Recruitment process

• Introductory call with a Talent Acquisition Manager
• Live coding interview (1 hour)
• System design interview with the Lead Software Engineer (1.5 hours)
• Final cultural fit interview with Alexander, Head of Software Engineering (1 hour)