Expertech is looking for an experienced tech lead to join a high-growth fintech and play a key role in building the core banking infrastructure behind a modern lending platform.

This is an opportunity to work on genuinely mission-critical financial systems, including wallets, transactional accounts, ledgers, payments and offset accounts . You'll have significant influence over technical architecture and engineering standards, while working closely with product and engineering teams to build secure, highly available and scalable systems.

You'll be joining a newly formed Banking Squad, with the opportunity to help shape both the technology and the way the team operates.

Essential Skills And Experience

- 5+ years' experience in backend or full-stack software development. Node experience is crucial.
- Strong expertise in relational databases, API design and concurrency control.
- 2+ years' experience building mission-critical financial systems, such as banking platforms, payment gateways or financial ledgers.
- Strong understanding of double-entry accounting and financial reconciliation.
- Proven experience designing and evolving complex architectures with a focus on fault tolerance, high consistency and scalability.
- Strong understanding of transactional workflows, data integrity and idempotent transaction handling.
- Experience writing highly tested, production-quality and fault-tolerant code.
- Strong understanding of observability, monitoring and production reliability.
- Experience performing secure production data migrations without compromising data integrity.
- Experience working with security, compliance and auditability requirements in financial or similarly regulated environments.
- Strong communication skills,



with the ability to explain technical decisions and trade-offs to non-technical stakeholders.
- A proactive mindset and willingness to take ownership, challenge assumptions and drive technical direction.

Desirable Skills and Experience

- Experience working with Australian financial services or lending platforms.
- Experience with regulatory and compliance frameworks such as APRA, PCI-DSS or SOC 2.
- Experience integrating with external banking, payment or financial service providers.
- Experience leading a technical squad or cross-functional engineering team.
- Experience mentoring engineers and conducting system design and code reviews.
- Experience working in a high-growth fintech, startup or similarly ambitious technology environment.
- Strong interest in financial technology and solving complex, real-world engineering problems.

Why Work Here?

- Work on mission-critical financial technology with a direct impact on customers.
- Help shape the architecture of a growing banking and lending platform.
- Join a newly formed Banking Squad with genuine opportunity to influence technical direction.
- Work alongside talented product and engineering professionals.
- Be part of an innovative, fast-moving fintech environment.
- Opportunity to mentor other engineers and help raise engineering standards across the business.
- Competitive remuneration and a strong focus on employee wellbeing.
- Birthday leave plus an additional paid day for life events, celebrations or a mental health reset.
- Two weeks working from anywhere each year.
- Professional development and ongoing learning opportunities.
- Regular social events and opportunities to connect with the wider team.

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📌 Tech Lead | Banking & Payments (Sydney)
🏢 expertech
📍 Sydney