Senior Software Engineer

14 hours ago

Toronto, Canada Talentlab Full time

Senior Software Engineer, Financial Infrastructure

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.

What You’ll Do

Build and Own High-Stakes Financial Systems

- 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.

Drive Technical Excellence

- 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.

Strengthen Operational Maturity

- 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.

Who You Are (Skills + Background)

You are a deeply senior engineer (Senior/Staff level) with:

Core Technical Expertise

- 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.

How You Work

- 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.

You can apply directly to gord.marriage@talentlab.com or on our website at www.talentlab.com. We want to thank all applicants for their interest, but only those in consideration will be contacted

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