Principal Software Engineer (Ruby on Rails/Golang/AI)

MONEY FORWARD VIETNAM CO.,LTD

Ứng tuyển

A sneak peak of members in Ha Noi office

Tòa nhà E.Town Central, Số 11 Đoàn Văn Bơ, Xóm Chiếu, TP Hồ Chí Minh

Linh hoạt

Đăng 19 ngày trước

Kỹ năng:

Ruby Ruby on Rails Kafka LLM AI Golang

Chuyên môn:

Lập trình viên Fullstack

Lĩnh vực:

Sản Phẩm Phần Mềm và Dịch Vụ Web

3 Lý do để gia nhập công ty

Hybrid working; Flexible time; Macbook Pro
L&D programs; 17 days off
13.7 million B2C users; 140,000+ business customer

Mô tả công việc

As a Product Engineer, you will drive outcomes across the team and technical system by leading design, implementation, rollout, and operational excellence. You will work primarily in our Ruby on Rails codebase to deliver product features end-to-end. We also have services written in Go (Golang), and you may occasionally contribute fixes or improvements there when needed.

Key Responsibilities

1. Technical Leadership

Ruby on Rails: Design, develop, and operate backend features in a Ruby on Rails and core services, with strong software engineering fundamentals and pragmatic delivery.
API & Services: Design and evolve RESTful APIs and service boundaries with clear tradeoffs and maintainable interfaces.
Data & Performance: Model data effectively and optimize SQL performance; identify and address bottlenecks and system inefficiencies.
Cloud-Native Delivery: Architect and operate cloud-native applications on AWS (and related tooling) with pragmatic use of Docker/Kubernetes where appropriate.
Operational Excellence: Improve observability (logs/metrics/traces), incident response, and post-incident learning to raise system reliability.

2. Delivery Ownership & Cross-Functional Collaboration

End-to-end Delivery: Own delivery from problem definition through production rollout, ensuring quality and operational readiness.
Stakeholder Collaboration: Partner with Product, Design, QA, and DevOps to clarify requirements, reduce ambiguity, and deliver outcomes aligned to business goals.
Release Management: Plan and execute production releases, coordinate stakeholders, and continuously improve deployment safety and speed (CI/CD)

3. Engineering Excellence & Quality

Code Quality: Set and model best practices for clean, maintainable code; lead strong code review culture.
Testing & Automation: Increase confidence and reduce manual testing via effective automated tests and robust review processes.
CI/CD: Operate and improve CI/CD pipelines (CircleCI/GitHub Actions or similar) to support frequent and safe delivery.
Security & Scalability: Ensure AI-assisted speed never compromises security, privacy, scalability, or compliance requirements.

4. AI-Assisted Delivery Practices

Rapid Iteration: Use AI to speed up prototyping and iteration (requirements exploration, code scaffolding, test generation, refactoring).
Verification & Governance: Quickly identify flaws in AI-generated output and correct them; maintain strong human verification habits (testing, reviews, threat modeling).
AI-Friendly Documentation: Improve the clarity of logs, runbooks, and technical documentation so both humans and AI tools can understand and operate the system effectively.

Scope & Collaboration

Primary focus is Rails-first backend/API delivery, with pragmatic cross-functional reach (infra/observability/quality) as needed to unblock outcomes.
You will collaborate across time zones with global stakeholders and engineering partners.

Yêu cầu công việc

Required Skills & Competencies

Experience: 5+ years of software engineering experience, including significant experience building and operating production web applications.
Ruby on Rails: Strong proficiency with Ruby on Rails (or a strong willingness and demonstrated ability to ramp up quickly and work day-to-day in a Rails codebase).
Distributed Systems: Experience designing and operating web services and microservices in production environments.
Cloud: Strong hands-on experience with AWS and cloud-native development practices.
Databases: Deep knowledge of relational databases and practical experience with data modeling and SQL performance tuning.
Delivery Leadership: Demonstrated ability to lead projects end-to-end and coordinate releases across stakeholders.
Collaboration: Strong communication and ability to work effectively with cross-functional teams.
Language: Professional English proficiency for global collaboration.

Preferred Skills

Kubernetes/EKS experience in production.
Monitoring/logging experience (e.g., Datadog, Prometheus, Grafana, ELK).
Message brokers/event-driven architectures (e.g., Kafka, RabbitMQ).
Experience integrating LLM APIs into products or internal tools (prompting, async workflows, handling non-deterministic outputs).

Technology Stack

Languages: Ruby on Rails (core), Go (selected services)
Datastores: MySQL, DynamoDB, Redis
Infrastructure: AWS (EKS, ECR, RDS, S3, SQS/SNS), Kubernetes, Docker, Terraform