Software Engineer designing and developing scalable SaaS platform for customers at Blue Yonder. Collaborating with teams and mentoring junior engineers in a dynamic technical environment.
About the role
- Senior Python Engineer developing microservices and APIs for B2B SaaS solutions in the gaming industry. Join our team in Sofia to innovate and scale cutting-edge sportsbook technology.
Responsibilities
- Design and develop backend microservices using Python (FastAPI, asyncio, etc).
- Implement RESTful and streaming APIs with strong focus on performance and reliability.
- Contribute to event-driven architectures (e.g., Kafka, RabbitMQ, Redis Streams, or Celery-based systems).
- Integrate with third-party APIs and services, handling authentication, error recovery, and data normalization.
- Design and optimize database schemas, migrations, and ORM layers.
- Collaborate on CI/CD pipelines, containerized deployments, and environment management.
- Drive continuous improvement in code quality, performance, and developer experience.
- Participate in architecture discussions, code reviews, and system design sessions.
Requirements
- Strong proficiency in Python with practical experience in FastAPI, asyncio, and typing.
- Flask, Django experience as a plus.
- Experience designing and maintaining microservice architectures.
- Solid understanding of databases and migration tools (Alembic, Django Migrations, etc.).
- Experience with message brokers / event-driven systems (RabbitMQ, Kafka, Redis Pub/Sub).
- Familiarity with Docker, CI/CD pipelines (GitLab CI, GitHub Actions, etc.).
- Experience integrating external APIs (OAuth2, webhooks, streaming endpoints, REST).
- Knowledge of testing frameworks (pytest, unittest) and observability (logging, tracing, metrics).
- Strong architectural mindset — ability to design systems that scale.
- Experience mentoring developers and leading technical decisions.
- Exposure to cloud environments (DigitalOcean, AWS, GCP).
- Familiarity with async event loops, background tasks, and real-time applications (WebSockets).
Benefits
- An open-minded environment that values you
- An international multicultural team
- An amazing office environment (table tennis, play station, all the fun stuff)
- Food vouchers (180 BGN)
- Additional health insurance
- Sports card
- 21 days paid leave
- Flexible working hours
- Manicure, barber, massage, breakfast, and snacks in the office
- Wedding and new baby bonus
- Team building activities
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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