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Senior Product Engineer

8 months

In short

Senior Product Engineer role to own lifecycle of BillPay product, collaborating with PMs and designers, building seamless financial experiences, ensuring secure, fast transactions, mentoring peers, with focus on Kotlin, Typescript, and backend development in a hybrid London setting.

Level
Senior-level Β· Full-time
Apron
Apron
  • 100 people
  • Hybrid
  • Backed by Index Ventures

Provides business payments, expenses and accounting software for small businesses.

0 open roles

Responsibilities

  • Partner deeply with Product Managers and Designers to shape the roadmap, translating customer needs into polished, end-to-end features.
  • Design and integrate scalable systems with payment providers and BaaS platforms, ensuring underlying complexity is invisible to users.
  • Develop core financial logic ensuring every transaction is secure, lightning-fast, and intuitively handled.
  • Proactively suggest improvements to the user journey and drive innovation across the stack.
  • Mentor peers and advocate for engineering best practices prioritizing system health and rapid product iteration.

Requirements

  • Solid experience as a backend-leaning Fullstack engineer.
  • Experience working in cross-functional teams shaping user-facing products/features.
  • Experience in a product-led, fast-paced environment (startup or tech company).
  • Proficiency or willingness to work with Kotlin, Typescript/React stack.
  • Experience with relational databases.
  • Keen attention to code quality, efficient architecture, and performance optimization.
  • Preferred: proficiency in JVM-based languages, particularly Kotlin for server-side development.
  • Preferred: hands-on experience with Kubernetes and Terraform.
  • Preferred: experience with advanced Postgres features like GIST indexes, partitioning, and replication.

Work Environment

  • Hybrid setting with 3 days a week in London (Liverpool Street) office.
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