Yiyu Tian

Senior Software Engineer

Seattle, Washington, United States3 yrs 10 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

Expert in building scalable cloud infrastructure solutions.
Proven track record in enhancing data processing systems.
Strong background in security systems and zero-trust models.

Stackforce AI infers this person is a SaaS-focused Software Engineer with expertise in cloud infrastructure and data processing.

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Skills

Core Skills

Cloud InfrastructureData ProcessingSecurity SystemsInfrastructureFrontend DevelopmentBackend Development

Other Skills

JavaPythonKafkaAIFlinkCloudData AnalysisBenchmarkingMonitoringMachine LearningSQLOpen SourcemTLSJWTAutomation

About

I am an exceptional Software Engineer II with rich experience in data processing systems and cloud infrastructure. I have a remarkable ability to quickly master complex technical fields, from distributed security systems to data platforms optimized for AI applications. With strong communication skills gained from my social science background, I am highly effective at fostering collaborative work environments and transforming intricate requirements into scalable and durable engineering solutions. I'm always excited to link with new friends in the tech industry. Please feel free to connect with me.

Experience

3 yrs 10 mos

Total Experience

1 yr 11 mos

Average Tenure

3 yrs 5 mos

Current Experience

Confluent

2 roles

Senior Software Engineer

Mar 2024 – Present · 2 yrs 2 mos · Greater Seattle Area

In Flink SQL team, building high-performance applications for processing streaming (Kafka) and batch data, optimized for AI workloads
· Architected and implemented the Bring-Your-Own-Bucket (BYOB) feature for Flink Batch query, enabling customers to analyze large volumes of data residing in their own S3 buckets, unifying operational and analytical workflows within Confluent Cloud, resulting in stronger customer lock-in and a projected 20-30% increase in Confluent Tableflow revenue
· Designed and implemented TB-scale TPC-DS benchmarking platform (99 queries) for Flink Batch query, establishing critical performance baselines that validated Flink batch query’s enterprise readiness and enabled successful product launch
· Enhanced Confluent AI platform stability by resolving critical race conditions and implementing comprehensive monitoring for the Flink SQL Metastore service, ensuring reliable deployment of ML models including LLMs as first-class SQL resources
· Improved open-source Apache Flink's SQL compatibility by implementing extended TO_TIMESTAMP_LTZ functions, increasing SQL standard compliance and facilitating seamless platform migration

JavaPythonKafkaAIFlinkCloud+2

Software Engineer

Dec 2022 – Mar 2024 · 1 yr 3 mos · Greater Seattle Area

In Trust & Security Team, building a distributed security system for Kafka and Flink in Confluent Cloud
· Drove the design and ground-up delivery of the foundational Service-to-Service (S2S) authentication system, established a centralized, SPIRE-based identity provider (supporting mTLS/JWT), resolving the "secret-0" bootstrap identity problem for all Confluent micro-services, preventing a catastrophic breach from a leaked static credential and establishing a true zero-trust security model.
· Engineered the end-to-end project integration within the Confluent cloud control-plane, fully automating the identity lifecycle (registration/de-registration) and reducing the service registration effort by 90% compared to the previous manual, error-prone process.
· Strengthened the authentication system reliability by empowering service owners with self-service capabilities, authored a comprehensive on-call runbook to standardize and streamline incident response and resolutions.

KafkaSecurity SystemsmTLSJWTAutomation

Snap inc.

2 roles

Software Engineer

Jul 2022 – Dec 2022 · 5 mos · Seattle, Washington, United States

In the infrastructure org, designing and building a distributed data storage system
· Implemented Terraform projects to provision DynamoDB tables and IAM roles for the metadata server, creating a consistent collaborative team workflow to configure infrastructure, reducing the workload from days to hours
· Wrote and maintained integration tests in Golang for the metadata server for 90% of the code, improving the reliability of a critical system for site-wide user data storage

TerraformDynamoDBGolangIntegration TestingInfrastructure

Software Engineer Intern

Jan 2022 – Jun 2022 · 5 mos · Seattle, Washington, United States

Worked in the Infrastructure org, focusing on Switchboard, an internal tool for controlling and configuring services
· Designed and implemented a generic table component using Typescript, React and Redux, improving the Switchboard homepage and standardizing the Switchboard UI/UX for 3000 users
· Visualized the metrics data using Typescript, Golang and Protocol Buffers to assist configuring load shedding configs, improving reliability of the servers and incident response time

TypescriptReactReduxGolangProtocol BuffersFrontend Development

Salesforce

Software Engineer Intern

May 2021 – Aug 2021 · 3 mos · Boston, Massachusetts, United States

Worked in the 1C2BC team, focusing on enabling a seamless checkout experience for customers
· Implemented APIs in Java and APEX that enable users to start, cancel and update e-commerce checkout sessions
· Combined "cancel checkout" behavior for the B2C and B2B stores, standardizing the shopping experience for users and setting the foundation for a smooth merge of other behaviors for the B2C and B2B stores
· Conducted test-oriented programming, aligned test plans with teammates to ensure compatibility of features

JavaAPEXAPI DevelopmentBackend Development

Northeastern university

Teaching Assistant

Jan 2021 – Apr 2021 · 3 mos · Seattle, Washington, United States

• Teaching Assistant for the course CS5004: Object-Oriented Developing

University of washington

Teaching Assistant, Instructor

Sep 2015 – Jun 2019 · 3 yrs 9 mos · Seattle, Washington, United States

Taught 11 courses on gender and diversity, worked closely with 400+ students in independent class sessions to create inclusive and dynamic learning environments, significantly improved students’ academic performance
Aided with class administration, syllabus design and grading, assisted the teaching staff to design effective teaching strategies that met the need of a diverse student body
Courses taught:
Psychobiology of Women, Women and International Economic Development, Introduction to Transgender Studies, Gender and Sport, Gender and Sexuality in China, Introduction to Gender Studies

Bloomberg businessweek chinese edition

Journalist

Sep 2012 – Feb 2013 · 5 mos · Beijing City, China

Made interview plans and conducted interviews in cooperation with other journalists, co-authored explanatory business reports, providing thorough business analysis for a wide range of readers
Researched financial data and presented the results to the whole reporting team by using the Bloomberg terminal, increased the efficiency in topic selection for 11 business analytical reports in 6 issues of the magazine