Backend systems · remote collaboration
Yupeng Ma
Senior Backend Engineer
Python · Go · AI Infrastructure
Profile
I build and ship production backend systems and AI infrastructure with a focus on clear interfaces, reliability, and maintainability.
Open to remote backend opportunities outside China.
Experience
iFLYTEK Future
Python Engineer
Related case study →
- Delivered the backend for a headset voice-cloning feature for a 2024 product launch.
- Built a streaming TTS service with FastAPI and WebSocket and supported its production deployment.
ByteDance
Python / Go Engineer
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- Contributed to CDN root-cause analysis and multi-provider vendor management systems.
- Implemented a CDN traffic-allocation algorithm and extended an RBAC multi-tenant module.
iQIYI
Python Engineer
- Helped move a copyright-infringement evidence workflow to independently deployable Serverless functions.
- Collaborated on automatic Kubernetes mapping and deployment from cloud functions to services.
UCAR
Python Engineer
- Developed competitor-pricing crawlers and a platform for configuring and running scheduled crawler tasks.
- Productionized a rental-demand forecasting model behind Python APIs and dispatch recommendations.
Ruizhi Rongke
Python Engineer
Related case study →
- Designed and implemented an OA workflow engine with Django and MySQL.
- Supported conditional branches, parallel gateways, node transitions, and rollbacks.
Selected projects
Voice Cloning Backend
Backend engineer for the Voice Double feature
The feature had to coordinate lifecycle requests, live synthesis, model serving, durable voiceprint storage, observability, deployment, and operations within one delivery window.
- Delivered the backend for the Voice Double feature for the 2024 Singles' Day product launch.
- Established explicit interfaces for model serving, storage, streaming, proxying, and centralized logs.
Python · FastAPI · WebSocket · CozyVoice · Alibaba Cloud OSS · ELK · Nginx
CDN Vendor Allocation
Python / Go engineer
Quarterly traffic allocation had to account for forecast demand and vendor performance while fitting existing multi-tenant operational and procurement workflows.
- Supported quarterly procurement allocation for ByteDance video products across multiple CDN providers.
- Kept allocation decisions, operational workflows, and multi-tenant access controls within one backend system boundary.
Go · Python · CDN · RBAC · Multi-tenancy
Lightweight OA Workflow Engine
Designer and implementer of the workflow engine core
Approval products needed conditional branches, parallel gateways, transitions, and rollbacks without coupling every rule to one product's forms.
- Used the engine in internal and client approval systems, including a GF Securities project.
- Documented the core design concepts in a public technical article.
Python · Django · MySQL · Workflow orchestration
Skills
- Python backend
- Python · FastAPI · Django · Server-side APIs · WebSocket · Scrapy
- Go and distributed delivery
- Go · CDN workflows · RBAC · Multi-tenancy · Cross-service delivery
- Data systems
- MySQL · Redis · Elasticsearch · Binlog data sync · Data pipelines
- Production operations
- Nginx · ELK · Alibaba Cloud OSS · Kubernetes delivery · Serverless deployment
- AI-enabled systems
- Model serving · Streaming TTS · FastAPI integration · Voiceprint storage · Production observability
Education
Heilongjiang University
Computer Science and Technology
2012—2016