Location
In office (London)
Seniority
Senior
Employment
Full-Time
First seen by Alion on Nov 12, 2026.
Overview
Company
Impact
Profile match
Open a borderless account from anywhere, send and receive payments worldwide, with instant access to funds in digital dollars or local currency. Seamless and 5-10x cheaper than traditional payment solutions.
Backed by Speedinvest
Due is looking for a Senior Back-End Software Engineer to build card issuing acquiring and push-to-card services integrate card processors and schemes and design ledger reconciliation and dispute handling for card transactions
You will build the cards stack for stablecoin-backed card issuing, card acquiring and push-to-card. You will work on services that authorise, clear and settle card transactions against stablecoin balances, and on the APIs platforms use to launch card programs.
Responsibilities- Build back-end services for card issuing, acquiring and push-to-card
- Integrate card processors and schemes, including authorisation, clearing and settlement flows
- Design ledger, reconciliation and dispute handling for card transactions
- Build Cards APIs and webhooks for platform clients
- Work with Compliance and Operations on fraud controls and program requirements
- Own reliability and observability of card-critical services
- 4+ years of experience in back-end software development
- Experience across Golang / Java / Kotlin / TypeScript or similar
- Interest to learn and develop in Golang
- Experience building reliable distributed systems
- Quick learner, ready to work in a fast-paced environment
- Interest in payments infrastructure and blockchain technology
- Fluent English
- 28 days of paid holidays
- Stock option grants
- Work flexibly and autonomously
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