Senior Software Engineer, Backend
Zip Co Limited2 months ago
Remote, United StatesSenior
Base Salary
$150k - $175k/yr
Responsibilities
- Build and evolve scalable card issuing, transaction processing, and settlement systems.
- Design reliable integrations with Stripe Issuing, banking partners, and internal platforms.
- Own complex technical initiatives from architecture and design through production delivery.
- Contribute to event-driven, distributed backend architecture using .NET, C#, Azure, DDD, and CQRS.
- Improve production reliability, observability, performance, monitoring, and incident response.
- Navigate security, compliance, regulatory, risk, and operational requirements for mission-critical financial systems.
- Partner with Product, Engineering, Infrastructure, and business teams on technical tradeoffs and delivery.
- Raise engineering quality through design reviews, code reviews, automated testing, and development practices.
- Use AI-assisted development across coding, testing, debugging, and technical problem-solving.
- Evaluate responsible applications of emerging AI capabilities for engineering workflows.
- Mentor and support engineers through pairing, technical guidance, code reviews, and knowledge sharing.
Requirements
- Bachelor’s degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience; a graduate degree is a plus.
- 10+ years of software engineering experience designing, building, testing, and maintaining complex production systems.
- Deep experience with .NET/C#, Azure Cloud Services, and distributed backend systems.
- Experience with Domain-Driven Design, CQRS, and event-driven architectures.
- Experience building payment infrastructure, card issuing, or transaction processing systems, including Stripe Issuing, Marqeta, or comparable solutions.
- Ability to independently own complex technical initiatives from architecture and design through production delivery.
- Strong understanding of reliability, observability, automated testing, system performance, and production incident management.
- Experience with security, compliance, and operational considerations for mission-critical financial systems.
- Ability to influence technical decisions and collaborate across technical and business teams.
- Experience mentoring engineers and strengthening engineering practices through reviews, pairing, and knowledge sharing.
- Experience using AI-assisted development tools across coding, testing, debugging, and technical problem-solving.
- Ability to evaluate and apply emerging AI capabilities with attention to quality, security, and maintainability.
- High-ownership and collaborative approach aligned with Zip’s stated values.
Benefits
- Remote-first opportunity for US-based employees with the option to work in person from the Manhattan office.
- Flexible working culture.
- Incentive programs.
- Unlimited PTO.
- Generous paid parental leave and family support policies.
- Company-sponsored 401k match.
- Learning and wellness subscription stipend.
- Union Square office with a casual dress code.
- Employer-sponsored insurance with several fully Zip-covered choices for employees and dependents.
About Zip Co Limited
Zip Co Limited (ASX: ZIP) provides buy now, pay later and point-of-sale credit products for consumers, integrated into online and in-store checkouts. It earns primarily from merchant fees, interchange, and consumer charges on longer-term credit; products include Zip Pay and Zip Money. Founded in 2013 and headquartered in Sydney, it operates in Australia, New Zealand, and the United States with a broad merchant acceptance network.