Senior Software Engineer

FORTUNE OPCO PTE. LTD.; Singapore; On-site; SGD 80,000 - 120,000; Full time

Job summary

A leading payment solutions company in Singapore is looking for an experienced software engineer to build innovative payment systems. The successful candidate will have a strong background in Node.js and will work on high-transaction systems. Responsibilities include designing scalable payment services, implementing orchestration flows, and ensuring compliance with financial regulations. This role offers a dynamic environment for those passionate about fintech and crypto.

Qualifications

• Min 5+ years building software, strong in Node.js/JavaScript/Typescript.
• Built or operated payment systems or crypto ecosystems.
• Worked in high-transaction, always-on environments.
• Hands-on with PostgreSQL, MongoDB, Kafka, RabbitMQ, AWS.
• Know your way around SAGA patterns, orchestration vs choreography, and clean architecture.
• Experience with CI/CD, monitoring tools, and incident management.
• Led engineering teams or managed projects.
• Background in fintech or crypto exchanges.

Responsibilities

• Build scalable payment services that handle high transaction volumes.
• Implement SAGA patterns, orchestration flows, and event-driven architectures.
• Build settlement, reconciliation, fraud prevention, and KYC/AML workflows.
• Be on-call and frontline during incidents.
• Protect financial data and ensure compliance with PCI DSS, MAS TRM, ISO 27001.
• Mentor other engineers and share knowledge.

Skills

Node.js

JavaScript

Typescript

PostgreSQL

MongoDB

Kafka

RabbitMQ

AWS

Job description

What is Xweave?

Xweave is on a mission to revolutionize global money movement by pioneering a next-generation payment service that breaks through the traditional barriers in the financial ecosystem. Our approach merges the existing payments infrastructure with digital assets by creating a global network of regulatory approved digital asset liquidity providers.

What is the role?

Build the infrastructure that moves money across borders in real-time using stablecoins. You'll work on mission-critical systems that run 24/7, processing transactions across some of the world's most dynamic markets.

Node.js

Node.js is your weapon of choice. You'll design and ship features end-to-end, own critical systems, and directly impact how fast, secure, and reliable our platform is. This isn't a "maintenance mode" role. You'll build new things, solve hard problems, and see your code handle real money at scale.

What You’ll Do

Build Payment Systems That Actually Work.

• Design and ship scalable payment services (fiat + crypto) that handle high transaction volumes with zero downtime
• Implement SAGA patterns, orchestration flows (Temporal/Restate), and event-driven architectures
• Own features from concept to production—full ownership, full impact

Payment Domain Work

• Build settlement, reconciliation, fraud prevention, and KYC/AML workflows
• Work with cross-border payment rails and stablecoin infrastructure
• Create run-books and tools for faster incident resolution (e.g., faster MTTR for payment/production failures)

Keep Things Running

• Be on-call and frontline during incidents (we'll train you, but you need to stay calm under pressure)
• Implement monitoring, logging, and observability that actually helps
• Do SPOF analysis, optimize costs, and make systems more resilient

Security & Compliance (non-negotiable)

• Protect financial data and ensure compliance with PCI DSS, MAS TRM, ISO 27001

Collaborate & Lead

• Work with product and business teams to turn ideas into engineering solutions
• Mentor other engineers, share knowledge, level up the team
• Build AI tools to help our support team work faster
• Make build vs buy calls on tools and services

Core Skills (must-haves)

• Min 5+ years building software, strong in Node.js/JavaScript/Typescript
• Built or operated payment systems or crypto ecosystems
• Worked in high-transaction, always-on environments
• Hands-on with PostgreSQL, MongoDB, Kafka, RabbitMQ, AWS
• Know your way around SAGA patterns, orchestration vs choreography, and clean architecture
• Experience with CI/CD, monitoring tools, and incident management
• Led engineering teams or managed projects
• Background in fintech or crypto exchanges

Technical Stack

• Languages: Node.js, JavaScript/TypeScript, Golang
• Databases: PostgreSQL, NoSQL, Time series database
• Messaging: Kafka, RabbitMQ, SQS, MQTT
• Orchestration: Temporal, Restate
• Cloud: AWS (primary)
• Architecture: Microservices, SAGA, Event-Driven, Monorepo
• Compliance: PCI DSS, MAS TRM, ISO 27001 (Nice to have)