Senior Backend Developer (Python & English)

Top 3 reasons to join us
Premium Healthcare package insurance
13th month salary, Performance bonus
16 days annual leave
Job description
Architect and build high-performance, low-latency backend services for trade capture execution, real-time analytics, and financial market data processing and distribution.
Design, build, and maintain scalable Microservices, low-latency protocols, and high-throughput APIs.
Engineer robust pipelines for real-time data ingestion, transformation, and distribution across large-scale, high-concurrency financial datasets.
Continually profile and optimize distributed cloud-native services for minimal latency, maximum throughput, fault tolerance, and high availability.
Write comprehensive unit, integration, and stress tests to ensure strict code quality, zero-data-loss execution, and long-term system robustness.
Partner with cloud, DevOps, and frontend engineering teams to deliver seamless integration, backed by structured logging, tracing, and observability tooling.
Maintain clear, thorough technical documentation, system specs, and runbooks to facilitate knowledge sharing and streamline system debugging.
Your skills and experience
Strong proficiency in Python combined with proven backend experience in compiled/systems languages. Hands-on experience with Rust is highly valued; however, candidates with strong backgrounds in lower-level or highly concurrent systems (e.g., C++, Go) and a proven track record of rapidly self-learning Rust are strongly encouraged to apply.
Proven experience designing, building, and scaling high-performance backend systems or distributed cloud architectures.
Deep understanding of REST, gRPC, and WebSockets for real-time, low-overhead communication.
Hands-on experience architecting or working with event-driven architectures and streaming platforms (e.g., Apache Kafka, NATS, Redpanda).
Strong command of Linux environments, operating system internals, performance profiling/tuning, containerization (Docker), and cloud environments (Kubernetes experience preferred).
Strong commitment to system documentation, clean code practices, structured application logging, and telemetry implementation.
Preferred Qualifications
2+ years of production experience writing idiomatic Rust (focusing on memory management without GC, async runtime models, tokio, and low-latency system design) is a major plus.
Domain experience in capital markets technology, trade processing, order management systems (OMS/EMS), or market data delivery platforms.
Demonstrated expertise in multi-threading, lock-free data structures, memory management optimization, and microsecond-level latency tuning.
Familiarity with real-time data pipelines and modern database architectures (PostgreSQL, time-series databases like TimescaleDB/InfluxDB, or distributed NoSQL stores).
Why you'll love working here
Competitive salary and benefits including Premium Healthcare package insurance
13th month salary, Performance bonus
16 days annual leave
Comprehensive Training Courses (Languages, Technical and Soft-skill)
Language Certificate allowance (TOIEC and Japanese)
Lunar New Year gifts
Lunch and bus/ parking allowance
Fun team activities and outings
Sponsored happy hour and sport clubs
Comfortable work space and friendly colleagues