Paradigm US Hiring! Full Time Golang Engineer (Card Payments) in - Ricebowl

Agree & Join LinkedIn

By clicking Continue to join or sign in, you agree to LinkedIn’s User Agreement, Privacy Policy, and Cookie Policy.

Skip to main content LinkedIn

This button displays the currently selected search type. When expanded it provides a list of search options that will switch the search inputs to match the current selection.

Join now Sign in

Golang Engineer (Card Payments)

BIT Official Singapore, Singapore

Golang Engineer (Card Payments)

BIT Official Singapore, Singapore

11 hours ago 35 applicants

See who BIT Official has hired for this role

Save

• Report this job
  
  

Direct message the job poster from BIT Official

Grace Guo

Grace Guo

HRBP

About BIT：

BIT (formerly Matrixport) is a global digital asset financial services and infrastructure group. Headquartered in Singapore and founded in 2019, BIT bridges traditional finance and digital assets through governance-driven financial services and technology.

The firm manages over US$7 billion in assets and facilitates more than US$7 billion in monthly trading volume. BIT offers services including custody, trading, asset and wealth management, liquidity and financing solutions, and tokenised real-world assets (RWA), serving institutional and professional investors globally.

BIT Group entities maintain a licensed and regulated footprint across Singapore, Hong Kong, Switzerland, the United Kingdom, the United States and Bhutan.

For more information, visit *************

Kickstart Your Journey At BIT

At BIT, we come together as a dynamic team to tackle exciting challenges head-on, creating an environment bursting with openness, transparency, and inclusivity. Every graduate is a vital part of our mission, and your ideas will always be valued. We’re searching for passionate, intellectually curious, and entrepreneurial individuals ready to make a real impact in the crypto ecosystem and help create innovative products for the next billion users.

• Make a Difference in the Future of Web3!
• Gain Hands-On Experience with Cryptocurrencies!
• Unlock Global Opportunities!
• Mentorship and Networking with Industry Leaders!
• Join a Fun, Vibrant, and Engaging Culture!
  
  

Job Responsibilities

Core Business Development

• Design, develop, and maintain backend services for the company's card payment and card issuing platform using Golang.
• Participate in the development of key business modules, including card issuing, card accounts, authorization, clearing & settlement, transaction processing, billing, rewards, and benefits systems.
  
  

Card Transaction Lifecycle Development

• Design and implement end-to-end card transaction processing workflows.
• Develop and maintain critical payment flows, including Authorization, Reversal, Capture, Refund, and Reconciliation.
• Ensure transaction accuracy, reliability, and consistency throughout the payment lifecycle.
  
  

Architecture Design & Optimization

• Participate in system architecture design and technical solution planning.
• Contribute to legacy system analysis, migration, and modernization initiatives.
• Continuously optimize system performance, scalability, and reliability to support mission-critical financial services.
  
  

Technical Excellence

• Identify and resolve system bottlenecks and complex technical challenges.
• Improve system throughput, response time, and operational stability under high-concurrency environments.
• Ensure transaction integrity, fund security, and data consistency.
  
  

Engineering Quality

• Produce and maintain high-quality technical documentation.
• Conduct code reviews and uphold engineering best practices.
• Develop comprehensive unit tests and integration tests to ensure system reliability and maintainability.
  
  

Requirements

Basic Qualifications

• Bachelor's degree or above in Computer Science, Software Engineering, or a related field.
• 3+ years of backend development experience using Golang and/or Java.
• Hands-on experience in card issuing systems, card payment systems, or card transaction processing platforms is highly preferred.
• Understanding of cryptocurrency fundamentals; experience in crypto trading, payments, or financial infrastructure is a plus.
  
  

Technical Skills

Programming & Computer Science Fundamentals

• Strong proficiency in Golang and/or Java, with a solid understanding of concurrent programming.
• Strong knowledge of Linux operating systems, computer networking, and data structures.
• Familiarity with Kubernetes and cloud-native development concepts.
  
  

Databases & Middleware

• Strong experience with MySQL and SQL performance optimization.
• Proficient in Redis and caching strategies, including handling cache penetration, cache breakdown, and cache avalanche scenarios.
• Experience with Kafka or similar messaging systems for asynchronous processing and system decoupling.
  
  

Distributed Systems

• Solid understanding of microservices architecture.
• Experience with gRPC and Protocol Buffers (Protobuf).
• Familiarity with service governance practices, including service discovery, circuit breaking, rate limiting, and distributed tracing.
  
  

Cloud Native & DevOps

• Experience with Docker, Kubernetes, and containerized application deployment.
• Familiarity with CI/CD pipelines and modern software delivery practices.
  
  

AI-Driven Development

• Proficient in using AI-assisted development tools such as Claude Code, Codex, or similar solutions.
• Able to integrate AI-powered workflows into daily development processes to improve productivity and engineering efficiency.
• Demonstrated ability to design and build high-value AI-assisted development workflows.
  
  

Preferred Qualifications

• Experience building systems for licensed card issuers, acquirers, payment processors, or third-party payment institutions.
• Familiarity with ISO 8583, ISO 20022 messaging standards, or integration with card networks and issuing partners.
• Experience with crypto payment infrastructure, crypto cards, fiat on/off-ramp solutions, or digital asset payment systems.
• Experience building accounting, reconciliation, treasury, or risk-control systems for high-volume financial transactions.
• Familiarity with PCI-DSS and payment security/compliance standards.
• Proven experience leading payment system development from scratch (0-to-1) or participating in large-scale core system migration projects.
  
  

Embrace the opportunity to thrive and grow with us as we shape the future together at BIT!

By submitting a job application, you confirm that you have read and agree to our Candidate Privacy Policy. *************>

• Seniority level Mid-Senior level
• Employment type Full-time
• Job function Finance and Information Technology
• Industries Financial Services and Technology, Information and Media
  
  

Referrals increase your chances of interviewing at BIT Official by 2x

See who you know

Get notified about new Engineer jobs in Singapore, Singapore.

Sign in to create job alert

Similar jobs

• Software Engineer
  
  

Software Engineer

YouTrip

Singapore, Singapore 3 weeks ago

• Senior Software Engineer
  
  

Senior Software Engineer

Pave Bank

Singapore, Singapore 1 month ago

• Expert Software Engineer - ShopeePay
  
  

Expert Software Engineer - ShopeePay

Shopee

Singapore, Singapore 2 weeks ago

• Backend Software Engineer II
  
  

Backend Software Engineer II

foodpanda

Singapore, Singapore 1 week ago

• Backend Software Engineer (Wallet) - TikTok - Singapore
  
  

Backend Software Engineer (Wallet) - TikTok - Singapore

TikTok

Singapore, Singapore 6 days ago

• Software Engineer (Financial Product and Solution) - Global Payment - Singapore
  
  

Software Engineer (Financial Product and Solution) - Global Payment - Singapore

ByteDance

Singapore, Singapore 3 days ago

• Senior Software Engineer, Issuing Platform
  
  

Senior Software Engineer, Issuing Platform

Airwallex

Singapore, Singapore 1 week ago

• Senior Backend Software Engineer
  
  

Senior Backend Software Engineer

foodpanda

Singapore, Singapore 3 days ago

• Backend Engineering Lead (Go; Compliance)
  
  

Backend Engineering Lead (Go; Compliance)

KAST

Singapore, Singapore 5 days ago

• Software Engineer (Payment Network) - Global Payment - Singapore
  
  

Software Engineer (Payment Network) - Global Payment - Singapore

ByteDance

Singapore, Singapore 4 days ago

• Senior Backend Engineer (Golang)
  
  

Senior Backend Engineer (Golang)

Longbridge Singapore

Singapore, Singapore 13 hours ago

• Golang software Engineer（RWA）
  
  

Golang software Engineer（RWA）

BIT Official

Singapore, Singapore 1 month ago

• Senior Backend Engineer, Spend Team (Cards)
  
  

Senior Backend Engineer, Spend Team (Cards)

Airwallex

Singapore, Singapore 2 weeks ago

• Senior Engineer - Payment & Wallet
  
  

Senior Engineer - Payment & Wallet

Coinhako

Singapore, Singapore 1 day ago

• Software Engineer, Connectivity, Singapore
  
  

Software Engineer, Connectivity, Singapore

Talos

Singapore 2 weeks ago

• Senior Backend Engineer
  
  

Senior Backend Engineer

Sea

Singapore, Singapore 2 weeks ago

• Software Engineer, Engineering Excellence
  
  

Software Engineer, Engineering Excellence

StraitsX

Singapore 2 weeks ago

• Senior Backend Engineer (Golang)
  
  

Senior Backend Engineer (Golang)

Not Another Headhunting Company

Singapore 6 months ago

• Senior Software Engineer (Backend)
  
  

Senior Software Engineer (Backend)

SHIELD

Singapore, Singapore 1 week ago

• Senior Backend Engineer - Marketplace, Order Operations
  
  

Senior Backend Engineer - Marketplace, Order Operations

Shopee

Singapore, Singapore 2 weeks ago

• Senior Engineer, Backend Engineering
  
  

Senior Engineer, Backend Engineering

Garena

Singapore 1 week ago

• Backend Software Engineer(Singapore)
  
  

Backend Software Engineer(Singapore)

Baidu, Inc.

Singapore, Singapore 1 week ago

• Senior Software Backend Engineer- Central Tech
  
  

Senior Software Backend Engineer- Central Tech

Traveloka

Singapore, Singapore 4 days ago

• Senior Go Engineer (AI Lab)
  
  

Senior Go Engineer (AI Lab)

Workato

Singapore 1 week ago

• Engineering Manager II, Payments
  
  

Engineering Manager II, Payments

Grab

Singapore, Singapore 2 months ago

• 后端开发工程师
  
  

后端开发工程师

DiDi

Singapore, Singapore 1 week ago

• Back End Developer
  
  

Back End Developer

Gateway Search

Singapore, Singapore 7 hours ago

People also viewed

• Lead Software Engineer, Backend
  
  

Lead Software Engineer, Backend

Grab

Singapore, Singapore 2 hours ago

• Software Engineer (Real Time Payments)
  
  

Software Engineer (Real Time Payments)

Mastercard

Singapore, Singapore 2 weeks ago

• Senior Software Engineer
  
  

Senior Software Engineer

Mastercard

Singapore, Singapore 5 days ago

• Principal / Senior Software Engineer (Backend)
  
  

Principal / Senior Software Engineer (Backend)

SP Group

Singapore, Singapore 6 days ago

• Backend Engineer
  
  

Backend Engineer

Sea

Singapore, Singapore 2 weeks ago

• Backend Developer
  
  

Backend Developer

Webot

Singapore, Singapore 5 days ago

• Go Backend Developer
  
  

Go Backend Developer

StarHub

Singapore, Singapore 6 days ago

• Senior Backend Engineer
  
  

Senior Backend Engineer

TG Singapore

Singapore, Singapore 3 weeks ago

• Software Engineer, Payments
  
  

Software Engineer, Payments

Stripe

Singapore, Singapore 1 month ago

• Senior Software Engineer – Product Reliability Engineering (Middleware)
  
  

Senior Software Engineer – Product Reliability Engineering (Middleware)

Visa

Singapore, Singapore 1 week ago

• LinkedIn 2026
• About
• Accessibility
• User Agreement
• Privacy Policy
• Your California Privacy Choices
• Cookie Policy
• Copyright Policy
• Brand Policy
• Guest Controls
• Community Guidelines

You’re signed out

Sign in for the full experience.

Sign in Join now