Senior Software Engineer

2 weeks ago

Athens, Attica, Greece DeepRunner AI Full time

Role Overview

We are seeking an exceptional Senior Software Engineer, can architectural authority for our engineering organization. In this role, you will be responsible for designing and implementing distributed, multi-tenant systems that operate at scale while maintaining the highest standards of reliability, security, and performance.

Qualifications

Required:

  • 5+ years of hands-on experience designing and building distributed, multi-tenant, large-scale business applications in production environments
  • Expert-level knowledge of database technologies (both SQL and NoSQL), including deep understanding of query optimization, indexing strategies, sharding, and replication patterns
  • Extensive experience with ORM frameworks and their appropriate use cases, including performance implications and anti-patterns
  • Proven expertise in message broker architectures (Kafka, RabbitMQ, SQS, etc.) and event-driven systems design
  • Deep understanding of API design principles, including RESTful services, GraphQL, gRPC, and the implementation of idempotent operations
  • Mastery of distributed systems concepts including eventual consistency, CAP theorem, consensus algorithms, and conflict resolution strategies
  • Demonstrated experience building resilient systems with circuit breakers, retry mechanisms, graceful degradation, and chaos engineering practices
  • Strong background in security best practices including authentication/authorization patterns, data encryption, secret management, and zero-trust architectures
  • Proven track record of performance optimization at scale, including profiling, load testing, and systematic bottleneck elimination
  • Experience designing cloud-agnostic architectures with successful deployments across multiple cloud providers (AWS, GCP, Azure) and on-premises environments
  • Excellence in creating modular, loosely-coupled systems with clear service boundaries and well-defined interfaces

Preferred:

  • Active contributions to open-source projects, particularly in areas related to distributed systems, databases, or cloud infrastructure
  • Experience with container orchestration platforms (Kubernetes, Docker Swarm) and infrastructure as code
  • Experience with polyglot architectures and multiple programming paradigms
  • Track record of successfully migrating legacy monolithic applications to modern distributed architectures
  • Experience with observability platforms and distributed tracing systems

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