Senior Scala Developer

Symphony Solutions is a Cloud- and AI-driven technology company headquartered in the Netherlands, delivering both world-class services and innovative products. With a remote-first mindset, the company has a global presence spanning over 20 countries. It provides custom software solutions for Airline, Healthcare, iGaming, E-learning, e-Commerce, and Supply Chain sectors.

• 5+ years of experience building backend systems.
• 4+ years of hands-on experience with Scala.
• Experience building RESTful APIs / WebSockets.
• Proficient in Scala and its ecosystem (e.g., Akka, Play Framework, SBT).
• Experience working with distributed messaging systems such as Kafka, ActiveMQ, RabbitMQ.
• Experience with microservices architecture.
• Experience with containerisation technologies (e.g., Docker, Kubernetes).
• Deep understanding of software design patterns, distributed systems theory, data structures, and algorithms.
• Experience with database technologies (SQL and NoSQL).
• Experience with cloud services (AWS, GCP) and CI/CD pipelines.
• Experience with system observability - logging, metrics, tracing (e.g., OpenTelemetry, Datadog, Grafana).
• Strong written and verbal communication skills in English (B2+).
• Proven ability to lead technical discussions and collaborate across teams in a multicultural environment.
• Strong ownership mindset, proactive in identifying risks and driving technical decisions.

Nice to have:

• Strong interest in applying AI-powered tools (e.g. ChatGPT, Copilot, Cursor or similar) to speed up day-to-day development tasks.
• Proven ability or strong motivation to use AI to reduce development time, improve code quality, and automate repetitive engineering work.
• Experience in leveraging AI for code generation, refactoring, debugging, test creation, and documentation.
• Openness to experimenting with new AI tools and workflows and integrating them into the development process.
• Experience with JIRA and Confluence.
• Experience with ZIO and/or Typelevel stack (CATS etc.).
• Experience with Couchbase DB.
• Experience with ElasticSearch.
• Experience in gambling or online gaming.
• Experience with TDD development processes.

• New features development within existing product.
• Proactively identifying, escalating, and resolving technical risks and bottlenecks.
• Collaborating closely with the Product and Architect team.
• Driving bug investigation on complex, cross-service issues.
• Writing Unit tests and integration tests.
• Full participation in Scrum ceremonies and technical discussions.
• Mentoring Middle and Junior developers, pair programming, knowledge sharing, technical onboarding.