Senior Software Engineer

This role is for one of the Weekday's clients

Min Experience: 5 years

Location: USA, California City

JobType: full-time

We are searching for a highly skilled Senior Software Engineer who brings deep expertise across backend engineering, distributed systems, and high-performance data processing. This role is ideal for someone who enjoys solving complex technical challenges, building scalable systems, and working with modern data technologies such as ClickHouse , along with programming languages like Java, Golang, and Python .

Key Responsibilities

• Design, develop, and optimize backend services using Java , Golang , and Python , depending on system requirements and performance needs.
• Work extensively with ClickHouse , designing efficient schemas, optimizing queries, and building high-speed data pipelines.
• Develop scalable and reliable services to support real-time analytics, large data ingestion, and high-volume data processing.
• Contribute to architectural decisions, ensuring that system designs are scalable, fault-tolerant, and aligned with long-term product goals.
• Collaborate closely with product teams and engineering peers to turn complex business requirements into well-designed, robust technical solutions.
• Build microservices, APIs, and system components that integrate seamlessly into distributed systems.
• Implement performance tuning, profiling, and debugging to maintain high efficiency and low latency across services.
• Write clean, testable, and maintainable code following coding standards and best engineering practices.
• Participate in code reviews, share engineering best practices, and mentor junior developers when needed.
• Ensure system reliability, security, and observability through proper logging, monitoring, and alerting processes.
• Automate workflows and contribute to CI/CD processes to support continuous delivery and operational excellence.
• Troubleshoot production issues, conduct root-cause analysis, and implement long-term fixes to enhance platform stability.
• Create and maintain documentation for architectural diagrams, APIs, data flows, and system components.
• Continuously research new technologies, evaluate technical feasibility, and contribute innovative ideas for platform improvements.

What Makes You a Great Fit

You will thrive in this role if you bring:

• 5+ years of professional software engineering experience , preferably in backend, data engineering, or distributed systems roles.
• Strong proficiency in ClickHouse —including database design, query optimization, and large-scale analytics workloads.
• Advanced programming skills in at least two of the following: Java, Golang, Python .
• Experience building high-performance, low-latency systems capable of handling large datasets and high throughput.
• Solid understanding of distributed system architecture, concurrency, data modeling, and system design principles.
• A solutions-driven mindset with the ability to break down complex challenges into simple, elegant technical implementations.
• Strong communication skills with the ability to collaborate effectively in a dynamic engineering environment.
• A proactive and ownership-oriented approach, with enthusiasm for building scalable systems and driving engineering excellence.
• A passion for learning new technologies and improving existing systems for better performance and reliability.