Location: Remote (Canada)
We’re looking for a Senior Software Engineer to join a correctness-critical engineering function responsible for money movement, ledgering, reconciliation, and core financial infrastructure. This is a deeply technical role working on systems where precision, reliability, and sound engineering judgment are essential.
You’ll work alongside a highly senior team and engage directly with complex distributed systems that move and track customer funds. This role is ideal for someone who thrives on solving high-impact problems, enjoys owning critical paths end-to-end, and operates confidently in environments where correctness comes first.
Design and implement distributed systems for money movement, internal ledgering, reconciliation, and banking integrations.
Develop reliable, safe workflows in systems where financial correctness is mission-critical.
Contribute across architecture, design, coding, testing, and operational support.
Set engineering standards for correctness, reliability, and data integrity.
Lead and contribute to architectural decisions across the FinInfra domain.
Review designs and code to ensure high quality, correctness, and safety.
Diagnose and solve complex production issues in high-severity environments.
Build robust monitoring, alerting, runbooks, and fail-safes for critical financial systems.
Participate in on-call rotations with a focus on prevention, resilience, and continuous improvement.
Contribute to incident analysis, ensuring learnings translate into stronger systems.
You are a deeply senior engineer (Senior/Staff level) with:
Strong experience building distributed systems (concurrency, ordering, idempotency, state machines).
Deep backend engineering fundamentals using a modern language (Python is a plus).
Proven experience with correctness-critical or high-reliability systems.
(Preferred) Experience with financial infrastructure, such as:
ACH, payouts, FX, banking rails
Ledgering systems
Reconciliation or high-stakes transactional workflows
Strong command of ACID, consistency models, schema evolution, and transactional boundaries.
Ability to reason clearly about system behaviour under failure.
You communicate risk, constraints, and trade-offs clearly and concisely.
You remain calm and analytical under pressure, especially during incidents.
You collaborate effectively with very senior engineers and cross-functional partners.
You thrive in ambiguity and operate well within regulatory or constraint-heavy environments.
You take ownership end-to-end and bring a high bar for engineering quality.