Senior Software Engineer (all genders)

Position Overview We are looking for a Senior Backend Developer with extensive experience in building scalable microservices architectures. You\'ll be part of an innovative team developing and operating a global communication platform. About the Role Responsibilities Develop and maintain backend services in Python with a focus on performance and scalability Design and implement microservices for a high-frequency communication platform Work closely with DevOps and Operations teams to ensure reliable infrastructure Handle complex requirements: emails, SMS, voice calls, video conferencing in a distributed architecture Maintain and evolve Python legacy code Actively shape the technological future by evaluating new tools and integrating AI technologies Your qualifications Must-Have Several years of experience as a Backend Developer with Python Strong expertise in FastAPI and asynchronous programming (async/await) Solid understanding of microservices architecture and REST APIs Experience with at least one of the following databases: MongoDB or MariaDB/MySQL Proficiency in Authentication & Authorization (OAuth2, JWT) Docker experience for containerization Version control with Git (preferably GitLab) Fluent English for working in international teams Highly Desirable Experience with Message Brokers (RabbitMQ, Kafka) Knowledge of Caching Systems (Redis) Experience with Kubernetes and container orchestration Familiarity with CI/CD pipelines (GitLab CI) Monitoring & Observability tools (Kibana, Sentry, Grafana) WebSocket implementation Pydantic for data validation Nice-to-Have Experience with Provider APIs (Twilio, Vonage, Sinch, Infobip) TTS integration (Azure, Acapela) Basic knowledge of Keycloak or other IAM systems Frontend basics (Preact, React) for better cross-team collaboration Experience with legacy code modernization Interest in AI/ML technologies and their practical applications Tech Stack Core Technologies Python, FastAPI, Pydantic, Async/Await, Microservices, REST APIs, OAuth2, JWT, WebSockets Database & Messaging MongoDB, MariaDB, RabbitMQ, Redis DevOps & Tooling Docker, Kubernetes, Rancher, GitLab CI, Kibana, Sentry, Grafana The Product We are building a unified communication platform for customer-facing interactions. The solution integrates multiple communication channels in a highly scalable architecture: Email SMS Voice Calls Conference Calls Video Conferencing The platform processes millions of transactions daily and requires the highest standards of reliability and performance. Your future team Contact Kontakt oss #J-18808-Ljbffr