Senior Software Engineer
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Job Description
Senior engineer building Pax8’s core financial infrastructure for its global cloud marketplace. Designing Kotlin services, Kafka workflows, and auditable money-handling systems.
Responsibilities:
- Build net-new financial systems for Pax8’s core financial infrastructure
- Model transactions, events, and ledgers with strong correctness guarantees
- Design event-driven architectures using Kafka and asynchronous patterns
- Apply Domain-Driven Design to domains, event models, and system boundaries
- Collaborate with product, engineering, and adjacent teams to implement complex financial requirements
- Contribute to design and code reviews and mentor peers
- Participate in on-call rotations for critical financial workflows
- Use coding agents and generative AI to accelerate implementation, testing, and documentation
- Support systems that enable compliance, partner confidence, and responsible business growth
Requirements:
- Proven experience building financial or money-handling systems such as billing, payments, ledgers, or transaction platforms
- Strong understanding of financial integrity, compliance expectations, and failure modes
- Substantial backend engineering expertise with Kotlin and Spring Boot
- Demonstrated experience with event-driven architectures and Kafka
- Experience designing systems using Domain-Driven Design, clean domain boundaries, and explicit event models
- Ability to operate where errors have real consequences and quality cannot be compromised
- Hands-on experience with coding agents, spec-driven workflows, and AI-assisted testing
- Ability to operate immediately at Senior Software Engineer II level
- Valid right to work in USA
Benefits:
- Non-Commissioned Bonus Plans or Variable Commission
- 401(k) plan with employer match
- Medical, Dental & Vision Insurance
- Employee Assistance Program
- Employer Paid Short & Long Term Disability, Life and AD&D Insurance
- Flexible, Open Vacation
- Paid Sick Time Off
- Extended Leave for Life events
- RTD Eco Pass (For local Colorado Employees)
- Career Development Programs
- Stock Option Eligibility
- Employee-led Resource Groups
- Internal development hub
- Learning & Development trainers
- AI-powered tools
- Mentors
- Cross-continent collaboration
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