Backend Engineer (Ruby on Rails)

ABOUT CLIENT

Our client is a dynamic and innovative company that is revolutionizing the market with their cutting-edge products and solutions. Our client's team of experts is dedicated to pushing the boundaries of what is possible, creating industry-leading solutions that have a meaningful impact on their customers' businesses and lives.

JOB DESCRIPTION

Create, construct, and manage dependable backend services for payment products utilizing Ruby and Ruby on Rails.
Develop and sustain APIs, services, and integrations with third-party systems.
Execute payment processes across various currencies, countries, and payment methods.
Manage refunds, retries, idempotency, webhooks, asynchronous processing, and partial failures.
Produce clean, sustainable, and testable code; engage in code reviews and restructuring.
Enhance system performance, reliability, observability, and security.
Address production issues, contribute to identifying root causes, and prevent future issues.
Work closely with product, QA, and other engineers; communicate potential risks at an early stage.

JOB REQUIREMENT

We are looking for a backend engineer with at least 3 years of professional experience for a mid-level position and at least 5 years for a senior-level position. The candidate should have hands-on experience in developing applications using Ruby and Ruby on Rails. Additionally, proficiency in English communication.
The ideal candidate should have experience in designing, building, and operating production APIs and backend services, as well as troubleshooting production issues using various tools. Knowledge of relational databases, particularly PostgreSQL or MySQL, is preferred, along with experience in working with background jobs and asynchronous workflows.
Nice to have qualifications include experience in payment or fintech, familiarity with Redis, Sidekiq, Kafka, AI-assisted coding/debugging tools, cloud infrastructure, and containers. Additionally, PCI-aware development practices would be a bonus.
We value strong ownership and accountability, structured risk-based thinking, effective communication, practical mindset, continuous learning, and attention to detail.

WHAT'S ON OFFER

Join a team at the forefront of payments and loyalty solutions.
Operating in many markets and expanding rapidly.
Offering payments, instant cashback, and AI-powered merchant tools.
Committed to creating a smarter, fairer, and faster financial landscape for all.
Become part of a dedicated, achievement-oriented team that prioritizes innovation and teamwork.

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, RoR/Rails

Location:

Ho Chi Minh - Viet Nam

Working Policy:

Hybrid

Job ID:

J02280

Status:

Close

Related Job:

Senior DFT Engineer

Ho Chi Minh - Viet Nam

Product

  • Chip DFT

We are looking for a highly motivated Senior DFT Engineer to join our advanced ASIC design team. In this role, you will lead the definition and implementation of comprehensive Design-for-Test (DFT) strategies for complex SoCs and IPs. You will collaborate closely with Front-end, Backend, and Product Engineering teams to ensure high test coverage, optimal yield, and cost-effective manufacturing solutions.#Key Responsibilities DFT Strategy & Architecture: Define DFT specifications and finalize comprehensive strategies (MBIST, SCAN, BSCAN, IP-Test, In-system test, and Low-Power DFT) to meet rigorous testing targets and quality goals. Implementation & Verification: Lead the implementation and verification of DFT circuits, ensuring robustness across various design scenarios. Timing Closure: Define DFT-specific SDC (Synopsys Design Constraints) and collaborate closely with Backend Engineers to validate timing constraints and achieve timing closure in test modes. Pattern Generation & Silicon Debug: Generate tester patterns using industry-standard tools; perform silicon bring-up, debug analysis, and failure diagnosis to resolve yield issues. Optimization: Analyze test coverage metrics and drive initiatives to improve coverage while reducing test costs, pin counts, and test time. Project Leadership: Serve as a Project Leader or Block Coordinator to manage project schedules, mitigate risks, and ensure on-time tape-out (T/O).

Negotiation

View details

Senior Physical Design Engineer

Ho Chi Minh - Viet Nam

Product

  • Chip Physical Design

We are looking for a skilled and experienced Physical Design Engineer to join our team and contribute to the development of next-generation ASICs. The role involves overseeing the physical implementation of complex designs, ensuring compliance with performance, power, and area targets while following stringent design rules and verification processes. # Responsibilities: Execute ASIC physical implementation utilizing automated place and route tools Conduct floor planning, power plan synthesis, clock tree synthesis, timing closure, routing, and post-route optimization Oversee physical verification signoff including DRC, LVS, ERC, antenna, and ESD Facilitate communication and coordination across different internal support teams

Negotiation

View details

Senior Fullstack .NET Engineer

Ho Chi Minh - Viet Nam

Outsource

  • .NET
  • Frontend
  • Azure

Collaborate with cross-functional teams (Developers, Product Owners, QA) to design and deliver scalable full-stack solutions using various technologies. Develop high-quality, maintainable code for both backend services and client-side applications. Translate business and stakeholder requirements into efficient, reliable technical solutions. Contribute to system architecture, technical direction, and continuous improvement of engineering practices. Advocate for software quality through code reviews, testing, and adherence to best practices. Solve complex technical problems and proactively drive solutions to completion. Actively participate in Agile/Scrum processes and promote a collaborative, transparent team culture. Continuously learn, innovate, and contribute ideas to enhance product and team performance.

Negotiation

View details