Senior Product Engineer II

Description

The company is a global technology company that moves and manages money across borders. Banks, software firms and large enterprises use its infrastructure through an API to offer cross-border payment products to their own customers.

The team spans sales, implementation, product, engineering, compliance and analytics, and is based in New York, London and Singapore.

This is a Senior Backend Engineer II role on the Partner Experience team in London.

The team builds and runs the systems that help enterprise partners launch faster and handle daily operations from one place.

The team owns the partner portal, which many large banks use to manage transfers, report fraud, handle compliance requests and manage their staff. It also owns the backend services for partner onboarding, permissions and communication. Most of the work is new, with no established model for enterprise partner tooling at this scale, so you will often design from scratch rather than maintain existing systems.

The team is small, ships often and iterates based on partner feedback. Engineers own features from discovery and design through to production support. You will work with a PM and a designer, and with the API Experience, Account Discovery, KYC and FinCrime teams.

The team investigates before building, so you will understand existing systems, APIs and dependencies before writing code. Process is kept light, with quick standups, focused 1:1s and quarterly planning.

Responsibilities

• Build backend microservices for partner features such as fraud reporting, case management, RFI handling, audit logging and transaction visibility.
• Design and extend the role-based access control system that determines what partners can do in the portal.
• Build SAML 2.0 SSO for enterprise partners, including mapping identities between partner systems and the company's own.
• Extend the communication services between the company and partners to support new case types and workflows.
• Design partner-facing APIs that are consistent, well documented and usable without hand-holding.
• Work with FinCrime, Compliance and KYC teams to bring sanctions RFI workflows and fraud reporting into the portal.
• Run technical discovery by mapping existing systems and dependencies, and write design documents that serve as the team's reference.
• Provide production support and debugging when live partner issues arise.

Requirements

• Experience designing, building and deploying backend microservices in Java and Spring Boot.
• Familiarity with domain-driven design, event-driven architecture and microservice patterns, including thinking in terms of domain boundaries, aggregates and service responsibilities.
• Commercial experience designing and maintaining RESTful APIs, with comfort in OpenAPI/Swagger, OAuth2 and versioning strategies.
• Ability to design and maintain relational databases such as MySQL and PostgreSQL, including query performance, indexing and data modelling.
• Enjoy mapping complex technical landscapes, understanding systems, dependencies and constraints before proposing solutions, and documenting what you find clearly.
• Deliver reliably and manage your own work without needing constant check-ins.
• Work well with adjacent teams, unblock yourself when dependencies appear, and build relationships beyond pull request reviews.
• Understand that enterprise customers need reliability, auditability, compliance and security designed in from the start.
• Experience building enterprise portals, partner platforms or B2B SaaS products.
• Understanding of payments systems and the complexities of cross-border money movement.
• Experience with identity and access management, including SAML, SSO, SPIFFE and OAuth2.
• Familiarity with Kafka or other event streaming platforms.
• Experience working on a platform team that serves multiple internal or external consumers.
• Ability to explain technical decisions to non-technical people such as product managers, partners and compliance teams.
• Interest in international finance, foreign exchange or payments infrastructure.

Conditions

Based in London.

Starting salary of £87,500 to £111,000, plus RSUs.

The company wants a diverse and inclusive team and welcomes applicants from all backgrounds.

Benefits

• The company offers a benefits package alongside base pay, with details provided separately.