Principal Java/Kotlin Engineer

ABOUT CLIENT

Our client is a big fintech company from Japan

JOB DESCRIPTION

Build Scalable Systems: Develop high-performance, secure, and scalable applications that power core banking functions.
Master the Domain: Gain deep expertise in digital banking operations, including deposits, loans, clearing and settlement, basic accounting, domestic exchange, and the Zengin network.
Collaborate Closely: Partner with product owners to define clear, actionable requirements that align with business goals.
Ensure Quality & Security: Write, test, and deploy code that meets rigorous non-functional standards-covering static analysis, software composition, SAST, DAST, and numerical accuracy.
Design Microservices: Architect and implement robust microservices with a strong focus on API design and performance.
Champion Automation: Drive test automation and continuous improvement, with emphasis on API testing and reliability.
Own the Lifecycle: Take full ownership of the software development lifecycle-from design and development to deployment and maintenance.

JOB REQUIREMENT

At least 5 years of practical experience using Java or Kotlin and Spring Boot.
Proficiency in SQL, Apache Kafka, and relevant technologies.
Ability to create and automate tests.
Hands-on experience with relational/non-relational databases, encompassing transaction management, query optimization, and schema design.
Knowledge of microservice architecture and API design, emphasizing scalability, maintainability, and supportability.
Demonstrated development experience with adequate domain knowledge (industry specifics not required).
Familiarity with CI/CD concepts and practices.
Experience in developing cloud-native applications on major cloud platforms such as AWS, Azure, or GCP.
A degree in Computer Science, related field, or equivalent practical experience.
Previous experience in the finance sector, especially in banks or fintech.
Basic knowledge of accounting or double-entry bookkeeping.
Understanding of CCP and settlement mechanisms.
Proficiency in implementing CI/CD pipelines in the cloud from development to production.
Experience in AI development or utilizing AI tools to enhance development processes.
Recently, there has been an announcement about an AI Strategy roadmap at the company, focusing on enhancing operational efficiencies with AI and integrating AI agents into products for better user value.

WHAT'S ON OFFER

Employees have the flexibility to work two days in the office and three days from home
Work hours are flexible, with the option to start between 8AM-9AM from Monday to Friday
Full salary during the probation period
Eligibility for various insurance benefits, including social, health, and unemployment insurance, as well as private health and accident insurance
Additional perks such as a 13th-month salary, 16-24 paid days off, and paternity leave
Opportunities for annual company trips, quarterly team building activities, and participation in billiards and running clubs
Access to an annual health check and well-equipped facilities, including a MacBook Pro and additional monitor
Clearly defined career paths for employees
Sponsorship for foreign language and international technology-related certifications
Access to both internal and external training courses, soft-skill workshops, and tech seminars
Recognition awards and biannual performance and salary reviews (in June and December)

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:

Java, Kotlin, Backend

Location:

Ho Chi Minh - Viet Nam

Working Policy:

Job ID:

J01462

Status:

Close

Related Job:

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

Backend Engineer

Ho Chi Minh - Viet Nam


Product

  • Typescript
  • NodeJS
  • Python
  • AI

Build the core gateway: a unified, OpenAI-compatible API in front of multiple providers (OpenAI, Anthropic, Google, plus self-hosted and OSS models). Own provider routing and reliability: load balancing, automatic failover, and cost and latency-aware routing. Build billing and metering that is correct, not approximate: per-request token accounting, usage ledgers, cost attribution per team, user, and key, budgets, and spend limits. Ship org controls: API key management, per-team and per-user quotas, rate limiting, and RBAC. Handle streaming and performance: low-overhead proxying, streaming responses, connection handling, and caching where it helps. Contribute to the Jan Agent and connect it to the router: route its model and tool calls through the gateway, and make agent traffic first-class in metering, controls, and observability. Make deliberate speed-versus-correctness calls: move fast where iteration is cheap, refuse to cut corners where a bug means a bad charge or a leaked key, and pay down debt on your own initiative.

Negotiation

View details

Senior Backend Engineer (Shop 6.0)

Ho Chi Minh - Viet Nam


Outsource

  • NodeJS
  • Azure

Design and develop the backend services for the core areas of Shop 6.0 (catalog, orders, payments, ERP Cloud integration) Define API boundaries and ensure consistent, scalable communication between services Own reliable data synchronization between the ERP Cloud and the platform, including error handling and recovery mechanisms Optimize systems for performance and scalability (caching, asynchronous processing, read/write optimization) Establish observability standards (logging, monitoring, alerting) across all backend services Conduct code reviews, promote best practices, and support less experienced team members

Negotiation

View details