Wise

Senior Software Engineer - Wise Platform - API Experience

Wise
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1 month ago
London, United KingdomSenior

Responsibilities

  • Architect, build, and maintain scalable backend services using Java, Spring Boot, Kafka, and PostgreSQL.
  • Set public API standards using RESTful APIs, OpenAPI/Swagger, and OAuth2.
  • Build SDKs, reference implementations, and developer tools for partner integrations.
  • Provide technical leadership through code reviews, domain modeling, engineering best practices, and mentoring junior engineers.
  • Collaborate with Product Managers, Implementation Managers, Solutions Engineers, and partner development teams to define features and technical solutions.
  • Help engineering teams across Wise align with API standards and architecture patterns.
  • Collaborate with global engineering hubs, including travel to the Tallinn office.

Requirements

  • Proven experience designing, building, and maintaining production-grade public APIs using RESTful APIs, OpenAPI/Swagger, and OAuth2.
  • Extensive experience with Java and Spring Boot for resilient backend microservices.
  • Hands-on experience with event-driven architecture and messaging systems such as Kafka, plus relational database design and optimization with PostgreSQL or MySQL.
  • Proficiency in domain-driven design, microservices patterns, and building highly available, low-latency systems.
  • Customer-centric product mindset balancing technical quality, business context, user experience, and cost efficiency.
  • Ability to communicate complex technical concepts to non-technical stakeholders and collaborate across business units.
  • Experience with financial-grade security standards, compliance, international payment systems, open-source developer libraries, SDKs, developer portals, frontend frameworks, or infrastructure/gateway tooling is preferred.

Benefits

  • Starting salary of £87,500–£111,000 GBP plus RSUs.
  • Hybrid work arrangement.
  • Local candidates only; relocation support is not provided.
  • Wise can support transfer of visa sponsorship for local candidates.
  • The role involves collaboration with global engineering hubs and travel to the Tallinn office.

Tech Stack

Categories

BackendProduct Engineering
Wise

About Wise

10,000+ employees

Wise builds a cross-border payments and multi-currency account used by individuals and businesses to send, receive, hold, and spend money in 40+ currencies. Revenue comes from transfer and account fees, card interchange, and enterprise partnerships via Wise Platform, which lets banks and large companies embed its international payments. Founded in 2011 as TransferWise, Wise is a London-headquartered public company.

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