استخدام senior software engineer

توضیحات آگهی

Wallex is a FinTech company providing a secure cryptocurrency exchange platform and digital asset payment solutions
With a vision to become a leading global FinTech enterprise Wallex is recognized as one of the largest cryptocurrency exchange platforms in Iran supporting the online trading of over 130 cryptocurrencies
We are looking for a Senior Software Engineer with strong experience in Python or Go Apache Kafka distributed systems and event driven architecture to join our Market Making engineering team
You will design build and operate reliable high throughput backend systems that process real time market data trading events orders executions positions and risk related information
This role goes beyond application development You will contribute to system architecture technical design scalability reliability observability and production engineering across the market making platform
You will work closely with software engineers DevOps SRE engineers and product stakeholders to build systems that remain correct and predictable under high throughput network failures duplicated events exchange disruptions and rapidly changing market conditions
Responsibilities
Design develop and maintain high performance backend services using Python or Go
Design and evolve event driven and distributed system architectures
Build and operate high throughput event processing pipelines using Apache Kafka
Design Kafka topics partitions consumer groups message schemas and event contracts
Integrate with external exchanges through REST APIs WebSockets and streaming interfaces
Design reliable event processing workflows with clear guarantees around
Message ordering
Idempotency
Duplicate processing
Retry behavior
Offset management
Failure recovery
Event replay
Build asynchronous and concurrent systems for real time workloads
Identify and resolve race conditions concurrency issues and distributed state inconsistencies
Improve system throughput latency resilience and resource efficiency
Implement appropriate retry strategies dead letter handling backpressure timeouts and circuit breakers
Design state reconciliation mechanisms between internal systems and external exchanges
Build services that recover safely from process crashes exchange disconnects and infrastructure failures
Develop and maintain APIs and internal service contracts
Design and optimize data access using relational and analytical databases
Use Redis or similar technologies for low latency state management and caching
Build production observability using
Metrics
Distributed tracing
Structured logging
Dashboards
Alerting
Monitor and troubleshoot Kafka consumer lag exchange connectivity system latency resource bottlenecks and production incidents
Write high quality unit integration contract and end to end tests
Participate in architecture reviews and technical design discussions
Perform code reviews and contribute to engineering standards and best practices
Mentor engineers and help improve the technical quality of the team
Required Qualifications
5 years of professional software engineering experience
Strong production experience with Python or Go
Strong knowledge of backend architecture and system design
Hands on production experience with Apache Kafka
Strong understanding of Kafka concepts such as
Topics and partitions
Consumer groups
Offset management
Message ordering
Delivery semantics
Consumer rebalancing
Consumer lag
Strong understanding of event driven architecture and distributed systems
Experience designing idempotent and fault tolerant services
Strong understanding of concurrency race conditions and asynchronous processing
Experience working with REST APIs and WebSockets
Strong experience with PostgreSQL MySQL or similar relational databases
Experience with Redis or similar in memory data stores
Solid understanding of transactions consistency concurrency and distributed state
Strong understanding of failure handling and recovery in distributed systems
Experience with containerized applications and familiarity with Kubernetes or similar orchestration platforms
Experience building observable production systems
Strong debugging and production troubleshooting skills
Strong knowledge of software testing principles and automated testing
We build not watch This is where you belong
شرکت والکس Wallex
دسته بندی وب برنامه نویسی و نرم افزار
نحوه همکاری تمام وقت
نوع همکاری حضوری
مدرک تحصیلی کارشناسی
سابقه کار سه تا شش سال
حقوق توافقی
جنسیت مهم نیست
مهارت ها Python Software Engineering PostgreSQL Golang
شهر تهران تهران