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Java-Core System Developer

We develop our services with a strong emphasis on performance, availability, flexibility, and cost efficiency. The challenging tasks we solve are not language-specific and require a holistic understanding of the problems, unbounded by a specific technology stack. In some cases, a technology switch may be necessary if it is well justified.

Responsibilities

Understand tasks and formalize requirements, proactively verifying them when necessary.
Introduce, document, review, and successfully pass the review of technical designs, such as public APIs, new core features, and new services among others.
Implement agreed-upon functionality.
Participate in the peer review process.
Investigate complicated incidents.
Participate in laying out efficient infrastructure for code to run.
Measure and improve performance.

Required Skills And Qualifications

Knowledge of at least one of the following languages: Java, C++, C#, or Go, including all low-level technical details.
Experience with REST APIs and server-client communication, including WebSocket and Server-Sent Events (SSE).
Experience with multi-threaded development and synchronization patterns.
Redis or practical experience with comparable multi-master storage technology.
Spark, Flink, Ray, or practical experience with a comparable distributed computation engine.
Vert.x, Netty, or practical experience with a comparable high-performance communication library.
Background in Computer Science.
Knowledge of at least one public cloud platform: AWS, GCP, or Azure.

Nice To Have

Experience with algorithms.
Experience with ANTLR and formal grammar.
Computation plan optimization.
Experience with Docker, Kubernetes (K8s), and Helm.

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