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Crossian

Pax Sky Tower, 63-65 Ngo Thi Nham, Hà Nội

Company Size : 25-99

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Job Summary

  • 25-99
  • Product
  • Việt Nam

Backend Technical Lead

Crossian

  • Hai Bà Trưng, Hà Nội
  • Up to 5400USD
  •  Full Time
  •  English
  •  Experienced (Non-Manager)
1
1

  •  Posted:21/09/2025

  • Expired
Backend Technical Lead
Expired
Technical Skill: .NET , C# , Linq , Entity , Algorithm , PostgreSQL , Git , RDBMS , Elasticsearch , SOLID , Architecture , MS Azure , DevOps , Amazon S3 , Apache Kafka , Twilio , AWS , Message Queue , Ecommerce , .NET Core , Microservices , GCP , Amazon SNS , CI/CD , SysOps

Job description

Overview of job

  • Development & Deployment
  • Develop clean, scalable code using .NET Core in Micro-service Architecture & Cloud-native.
  • Develop backend Data-storage & Data-flows with Postgres, ES, Kafka, and various Cloud data toolsets.
  • Test and deploy system (micro-)services & (micro-)apps on AWS EKS/Kubernetes with Docker toolset.
  • Project Management:
  • Develop and maintain comprehensive documentation throughout the software development lifecycle (SDLC).
  • Actively participate in defining technical specifications within the Agile/Scrum development process.
  • Support Product Owner in planning and prioritize backend tasks to ensure timely delivery of project milestones and objectives.
  • System Architecture:
  • Lead the design and evolution of backend architecture to support current and future business needs.
  • Evaluate and integrate new technologies, tools, and frameworks to improve system performance and developer efficiency.
  • Participate in reviewing architectures with Team Leads & SAs.
  • Code Review & Team Coaching
  • Provide technical direction, mentorship, and code reviews for the backend team.
  • Coach team to ensure compliance with best practices and high quality coding standards.

We’re not just about building platforms; we’re about creating a workplace where talent thrives. Here's what you’ll gain:

Exceptional Compensation

  • Up to 30 months of salary per year through competitive salary packages and performance-based bonuses.
  • Total annual compensationover $70,000, reflecting your expertise and contribution.

Growth Opportunities

  • Hands-on exposure to cutting-edge technologies and complex system architecture in a global-scale project.
  • Clear career advancement pathways and access to continuous professional development programs.

Global Vision

  • Contribute to projects that redefine how brands connect with consumers globally.
  • Opportunity to work on challenging problems in data analytics, customer engagement, and operational efficiency

Job Requirement

  • Educational Background:
  • Bachelor’s degree in computer programming, computer science, or a related field
  • Experience
  • At least 7+ years of professional development experience.
  • A minimum of 1 year of hands-on experience with Cloud Native Computing using platforms such as AWS, GCP, or Azure.
  • At least 2 years of experience leading a team.
  • Proven track record of working in a product-focused company for at least the last 2 consecutive years.
  • Technical Skills:
  • Expert in C#, .NET, .NET Core, Core, Entity Framework Core, LINQ
  • Expert in Relational database modeling & design with Postgres
  • Deep understanding of computer architectures, data structures and algorithms, SOLID principles
  • Proficient knowledge of Microservices, Clean-code
  • Understanding of Agile/Scrum methodologies
  • Soft Skills:
  • Good communication skills.
  • Strong problem-solving skills with a Value-Driven mindset.
  • English skill: TOEIC >= 750 or IELTS >= 6.0 (Reading & Writing)
  • Preferred (but not required)
  • Document DB modeling & design with Elasticsearch
  • DevOps, SysOps in AWS and Git CI/CD experience
  • Object Storages with AWS S3
  • Message Queues with KAFKA & Message Queue
  • Messaging with Sendgrid, Twilio, AWS SNS,…
  • e-Commerce Experience (Inventory or Warehouse Management)

Languages

    • English

    • Speaking: Intermediate - Reading: Intermediate - Writing: Intermediate

Technical Skill

  • .NET
  • C#
  • Linq
  • Entity
  • Algorithm
  • PostgreSQL
  • Git
  • RDBMS
  • Elasticsearch
  • SOLID
  • Architecture
  • MS Azure
  • DevOps
  • Amazon S3
  • Apache Kafka
  • Twilio
  • AWS
  • Message Queue
  • Ecommerce
  • .NET Core
  • Microservices
  • GCP
  • Amazon SNS
  • CI/CD
  • SysOps

COMPETENCES

  • Team Leadership
  • Agile
  • Scrum
  • Problem Solving Skills
  • Communication Skills

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BUSINESS PROFILE

Crossian is a technology organization focusing on research and development of online retail platforms.

Crossian's platforms currently distribute 10+ brands, serving hundreds of thousands of US consumers. Turnover over 5 million / month, the number of goods to process and track on average more than 21,000 packages (bales) per day.

Crossian's goal is to become the leading organization that develops cross-border e-commerce platforms in Vietnam. In the next 3 years, it will account for 0.1% of Ecommerce market revenue in the US (equivalent to 50,000 orders / day)

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Posted: 16/04/2026
Skills: C#, .NET Core, Entity, PostgreSQL, Git, Microservices, Amazon SNS, CI/CD, SysOps, RDBMS, MS SQL, RabbitMQ, Elasticsearch, SOLID, Docker, DevOps, Amazon S3, Apache Kafka, Twilio, AWS, Kubernetes
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Senior DevSecOps Engineer

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  • Hai Bà Trưng, Hà Nội
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  •  Full Time
  •  Experienced (Non-Manager)
1
Posted: 02/04/2026
Skills: DevSecOps, DevOps, AWS, Kubernetes, Bash, GitlabCI, Prometheus, ELK, IaC, Python, Git, Jenkins, Docker, Grafana, SonarQube, CI/CD, DAST, SAST, GitHub Actions

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