TL;DR

Senior Software Development Engineer (Fullstack, .NET): Building and optimizing customer-facing features and next-generation workflows with an accent on payment processing, search optimization, and property management workflow optimization. Focus on domain-driven GraphQL/REST API design, event streaming, and migrating existing .NET Framework applications to cloud-native services.

Location: China - Guangdong - Shenzhen, with a flexible work model.

Company

%hirify_global% designs cutting-edge technology to make travel smoother and more memorable, and creates groundbreaking solutions for partners.

What you will do

Own end-to-end delivery and domain modeling of feature epics across domains.
Architect React app structure and design GraphQL schemas with clear boundaries.
Build Node.js BFF & Kotlin services for property management, payment processing, search relevance, and guest lifecycle.
Collaborate with product and design on roadmap sizing, sequencing, and MVP scoping.
Implement API and data changes enabling new UI capabilities.
Mentor SDE I/II engineers and guide containerization & AWS deployment.

Requirements

5+ years professional C#/.NET experience.
Strong understanding of CLR internals (memory, threading, async, GC basics).
Advanced SQL Server skills including query tuning, indexing, and transactions.
Hands-on experience with API design (REST standards, error models, pagination, versioning).
Familiarity with architectural patterns such as Domain-Driven Design (DDD), layered, and event-driven.
Effective written & verbal technical communication skills.
Proven mentorship experience in improving code quality norms.

Nice to have

Experience with .NET 6/8 performance features (Span, source generators, minimal APIs).
Knowledge of gRPC service & streaming design.
Exposure to REST API development (Node / Java / Kotlin) and GraphQL.
Strong JavaScript & TypeScript fundamentals (ES2022+, types, generics).
Experience with AWS (ECS, RDS/Aurora, CloudWatch, SQS/SNS, API Gateway) or Azure equivalents.
Familiarity with Infrastructure as Code (IaC) tools like Terraform, CDK, or CloudFormation.
Experience with Kafka/event streaming and eventual consistency patterns.
Knowledge of performance/load testing (BenchmarkDotNet, k6, JMeter) and security practices (OWASP Top 10, threat modeling).
Proficiency in container build optimization (Docker multi-stage, caching) and cross-stack familiarity.

Culture & Benefits

Comprehensive benefits package, including exciting travel perks and generous time-off.
Parental leave and a flexible work model with modern offices.
Access to career development resources.
An open, diverse, vibrant, and welcoming culture.
Recognized as a Best Place to Work on Glassdoor in 2024 and by Forbes, TIME, Disability:IN.