Lead Backend Engineer

JOB DESCRIPTION

We are looking to hire candidates for the following responsibilities:
Demonstrate product ownership with product managers and business teams
Provide assistance and advice on the definition of system requirement and system design
DevOps of various services, and partner solutions
Guarantee the products quality for long term operation
Provide guidance and mentoring to junior members
Main technology:
Ruby on Rails for backend 
Vue.js, Typescript for frontend
AWS for infrastructure

JOB REQUIREMENT

Must-Have:
Ability to discuss in English with global members
Experience as a leader and a mentor
Experience in defining service issues, technical issues, organization issues and solving them
Experience in developing Linux and web-based application in multiple frameworks (fluent in at least 2 of the following: Laravel, CakePHP, Symfony, Ruby on Rails, Django, etc.)
Experience in designing and tuning complex relational database such as MySQL, PostgreSQL
Experience in designing and implementing asynchronous process using background worker
Nice-to-have:
Experience in Ruby
Experience in front-end development using Sass, TypeScript, Transpiler, etc.
Experience in improving legacy code/system and working with REST API, and GraphQL
Experience in pair programming and/or mob programming
Experience in working with cloud computing such as AWS
Other important factors
Ability to adapt new tech stack, and Ruby’s development
Proactive action for the expansion of the development organization
Ability to work with others and preference on teamwork
High interest in learning and using new technology
Strong interest to change old industries with technology

WHAT'S ON OFFER

Flexible working hours, working from home conditionally
Free drink, monthly team building party
Opportunities for business trip to Japanese partner company and HQ office
Every 6 months salary review, health insurance
At least 15 paid days off per year
Macbook pro

CONTACT

PEGASI – IT Recruitment Consultancy | Email: recruit@pegasi.com.vn | Tel: +84 28 3622 8666
We are PEGASI – IT Recruitment Consultancy in Vietnam. If you are looking for new opportunity for your career path, kindly visit our website www.pegasi.com.vn for your reference. Thank you!

Job Summary

Company Type:

Product

Technical Skills:

Ruby, Backend, Python, Java

Location:

Ho Chi Minh - Viet Nam

Working Policy:

Job ID:

J00516

Status:

Close

Related Job:

Senior Backend Engineer

Ho Chi Minh, Ha Noi - Viet Nam


Product

Design, build, and operate backend services that power a leading B2B SaaS platform for the construction industry. Design clean, maintainable, and extensible software architecture. Identify and resolve performance bottlenecks (query optimization, caching, async processing). Drive software quality through automated testing, code reviews, observability, and CI/CD practices. Review and validate AI-generated code to ensure maintainability, correctness, and security. Mentor engineers and raise the team's engineering bar.#Development environment: Backend: Ruby (on Rails), Golang, Amazon Aurora (MySQL), DynamoDB FrontEnd: Nuxt.js, Vue.js, Next.js, ReactJS Mobile App: Kotlin, Swift, Flutter Deploy/ Build: AWS Amplify, CodePipeline, CodeBuild, CircleCI, GitHub Actions Others: Swagger, Docker, Figma, Confluence, JIRA, esa, gRPC Infrastructure: Helm, Terraform Automation test: Autify, Magicpod

Negotiation

View details

Application Engineer

Ho Chi Minh - Viet Nam


Product

  • Frontend
  • ReactJS
  • NodeJS

Build and maintain the Jan desktop app across macOS, Windows, and Linux using Tauri. Work full stack across the app: React and Node.js on the application layer, Rust on the native side. Own packaging, builds, and distribution: installers, auto-update, release pipelines, and code signing. Give Linux first-class support: packaging and distribution across common distros. Integrate local model runtimes and app features end to end. Work agent-natively as your default, running agents in parallel with your own review and guardrail discipline.

Negotiation

View details

AI Engineer

Ho Chi Minh - Viet Nam


Product

  • AI
  • Python

#AI-Powered Insurance Solutions Develop and deploy machine learning models to support insurance recommendation, pricing, risk assessment, and claims automation Build and maintain AI-powered features integrated into our embedded insurance platform - from data pipelines to inference APIs Design and implement RAG (Retrieval-Augmented Generation) pipelines and LLMbased assistants for internal and customer-facing use cases Collaborate with product and engineering teams to translate business requirements into practical AI solutions Participate in the full ML/AI lifecycle: data collection, feature engineering, model training, evaluation, deployment, and monitoring Contribute to our internal AI agent framework - building, testing, and improving multiagent workflows using LangChain, LangGraph, or similar tools Ensure AI models and services meet performance, reliability, and compliance standards in a regulated (insurance) environment Participate in developing CI/CD workflows for AI/ML/Data pipelines. Contribute to Agent Development Toolkits (ADK) and the automated Software Development Life Cycle (SDLC) that accelerate AI-native feature delivery#R&D & Engineering Tasks Research and experiment with state-of-the-art AI/ML techniques and evaluate their applicability to insurance use cases Prototype new AI capabilities quickly, iterate based on feedback, and graduate successful experiments into production Document experiments, model architectures, and engineering decisions clearly for team knowledge sharing Stay current with the AI ecosystem (LLM advances, agent frameworks, tooling) and bring relevant insights back to the team Support Full Stack Engineers in using the AI Development Toolkit (ADK) to develop applications - guiding and enabling their use of the toolkit rather than building the applications yourself - and maintain a basic understanding of the SDLC to help ensure consistent engineering standards across the platform Contribute to and continuously enhance the system knowledge base, ensuring documentation, patterns, and learnings are accessible to the agents

Negotiation

View details