[Hiring] Senior Golang Backend Software Engineer Performance Squad @Diabolocom

Role Description

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

Qualifications

• 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
• 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

Requirements

• Primary Languages: Golang
• Databases: PostgreSQL (Primary), Redis
• Infrastructure & Containerization: Docker, Docker-compose, Kubernetes, CI/CD (GitLab CI, ArgoCD)
• Message Brokers: RabbitMQ

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

Benefits

• 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)