Senior Software Engineer - Cards API team

Posted 2 Days Ago
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Singapore, SGP
Hybrid
Senior level
Fintech • Mobile • Payments • Software • Financial Services
Wise is one of the fastest growing fintechs in the world and we’re on a mission to make money without borders a new norm
The Role
Build and own scalable Cards API features for fintech partners, including onboarding, liquidity optimization, fraud prevention, and card analytics. Design resilient microservices and APIs, ensure system reliability and security, and collaborate cross-functionally with product managers, analysts, and engineers. Take end-to-end ownership of projects from problem definition through delivery, measurement, and roadmap planning.
Summary Generated by Built In
Company Description

Wise is a global technology company, building the best way to move and manage the world’s money.
Min fees. Max ease. Full speed.

Whether people and businesses are sending money to another country, spending abroad, or making and receiving international payments, Wise is on a mission to make their lives easier and save them money.

As part of our team, you will be helping us create an entirely new network for the world's money.
For everyone, everywhere.

More about our mission and what we offer.

Job Description

Our Cards API powers programmatic digital and physical card issuance for global fintech leaders such as Nubank, Tiger Brokers, and XP, alongside a full suite of management tools for spending controls and limits. Take a look at our Cards API documentation to understand what we’ve built.

We’re looking for a Senior Software Engineer to join the fast-growing Platform Issuance team in Singapore. In this role, you’ll drive features that solve our partners’ challenges, including accelerating onboarding, optimizing liquidity, combating fraud, and delivering card analytics.

Operating in an autonomous, cross-functional team, you’ll work with PMs, Analysts, and fellow Engineers to decide what we build, not just how we build it.

Qualifications

Technical

  • Strong experience building microservices, event-driven architectures, relational databases, and well-designed APIs. 

  • Ability to design and build resilient and scalable systems

  • Commitment to maintainable and well-tested software, predictable delivery, effective observability, and proactive technical debt management.

 

Product Mindset

  • Strong product mindset, connecting engineering decisions to customer outcomes.

  • Focused on the partner experience, ensuring APIs are simple to consume and well documented.

  • End-to-end ownership of impactful projects, from understanding the problem and shaping the solution through delivery, rollout, measurement, and future roadmap planning

 

Leadership & Collaboration

  • Accountable for the availability, reliability, and security of the systems you and your team build.

  • Self-starting and collaborative approach, with the confidence to work independently, take initiative, own the technical roadmap and deliverables of your projects

  • Clear and adaptable communication, translating complex technical concepts for different audiences and collaborating effectively across functions to reach practical, well-balanced solutions that achieve your team's goals.

 

Nice-to-have

  • Experience with Java, Spring Boot and Kafka

  • Experience building a finance API

  • Experience in the card payments domain, either as an issuer or acquirer

Additional Information

For everyone, everywhere. We're people building money without borders  — without judgement or prejudice, too. We believe teams are strongest when they are diverse, equitable and inclusive.

We're proud to have a truly international team, and we celebrate our differences.
Inclusive teams help us live our values and make sure every Wiser feels respected, empowered to contribute towards our mission and able to progress in their careers.

If you want to find out more about what it's like to work at Wise visit Wise.Jobs.

Keep up to date with life at Wise by following us on LinkedIn and Instagram.

Skills Required

  • Strong experience building microservices
  • Experience with event-driven architectures
  • Experience with relational databases
  • Experience designing well-designed APIs
  • Ability to design and build resilient, scalable systems
  • Commitment to maintainable and well-tested software
  • Experience with predictable delivery and effective observability
  • Proactive technical debt management
  • Strong product mindset connecting engineering decisions to customer outcomes
  • Focus on partner experience and well-documented APIs
  • End-to-end ownership of impactful projects
  • Accountability for system availability, reliability, and security
  • Self-starting, collaborative, and independent approach
  • Clear and adaptable communication skills
  • Experience with Java, Spring Boot, and Kafka
  • Experience building a finance API
  • Experience in the card payments domain as an issuer or acquirer

What the Team is Saying

Wise Compensation & Benefits Highlights

  • Equity Value & Accessibility — Employee ownership through share awards is standard for permanent staff, and equity is described as a meaningful part of total compensation. This approach can make overall pay feel more competitive than base salary alone.
  • Leave & Time Off Breadth — Paid time off is highlighted as a strong part of the package, including specific praise from operations roles. Generous PTO contributes to a more favorable view of total rewards.
  • Healthcare Strength — Health insurance is called out positively alongside other core benefits. Strong coverage helps offset concerns about the cash components of pay.

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The Company
9,000 Employees
Year Founded: 2011

What We Do

Wise is a global technology company, building the best way to move and manage the world's money. With Wise Account and Wise Business, people and businesses can hold 40 currencies, move money between countries and spend money abroad. Large companies and banks use Wise technology too; an entirely new network for the world's money. Launched in 2011, Wise is one of the world’s fastest growing, profitable tech companies. In fiscal year 2025, Wise supported around 15.6 million people and businesses, processing over $185 billion in cross-border transactions and saving customers around $2.6 billion.

Why Work With Us

We’re truly global in who we are, how we work, and how we build. Everything we do is centred around creating a world of money that’s fast, easy, fair. And open to all. Everyone who works here owns a piece of Wise, from the work they do, to the stock they hold.

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Wise Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

We expect new joiners in the office most days to build connections and learn from colleagues for their first six months. After that, most Wisers split their working week between the office and home, typically coming in at least 12 times a month.

Typical time on-site: Flexible
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