Chief Architect

Department: Engineering

Location: Tel Aviv

Employment Type: FullTime

About PayZen
PayZen is on a mission to make healthcare affordable for everyone. Our platform improves both access and affordability for patients, while enhancing cash flow and reducing administrative complexity for medical providers. Backed by top-tier VCs, we are rapidly growing and working with leading hospital systems and physician groups across the U.S.

About the Role

PayZen is looking for a highly skilled and strategic Software Architect to lead the modernization of our core technology platform and drive new AI-powered capabilities. This role involves analyzing existing systems, designing a scalable and cost-efficient target architecture, and building a clear roadmap to get there.

As our Chief Architect, you’ll serve as a trusted technical advisor, partnering with product, engineering, and business teams to design scalable, secure, and resilient systems. You’ll guide the technical direction of the company, mentor engineers, and help evolve our architectural standards and best practices.

What You Will Do

• Architectural Strategy
  Evaluate current systems and infrastructure; define scalable, secure, and maintainable target architectures.

• Roadmap & Execution
  Build migration plans from legacy to target state, including risk analysis, dependencies, and phased delivery.

• Cloud Architecture (AWS)
  Design AWS-native architectures that optimize performance, scalability, cost-efficiency, and reliability.

• AI Architecture
  Lead design and integration of AI capabilities with a focus on intelligent agents, LLMs, and automation workflows. Leverage services like AWS Bedrock, OpenAI APIs, and open-source agent frameworks.

• Cross-Functional Collaboration
  Partner closely with product and engineering leadership to define the technical roadmap and delivery strategy.

• Operational Excellence & Leadership

  • Define and uphold architectural and technical standards across engineering teams.

  • Ensure compliance with regulatory and security frameworks (e.g., SOC 2, HIPAA).

  • Serve as the primary technical escalation point for architecture and infrastructure concerns.

  • Mentor developers on system design, scalability, and performance.
    Stay hands-on through POCs, technology evaluations, code reviews, and monitoring production health.

What You Bring

• Experience: 5+ years as a Software Architect or in a similar senior engineering role in complex, distributed systems.

• FinTech Background: Proven experience working in or with FinTech companies (e.g., payments, lending, embedded finance).

• AI/Agents: Practical experience with modern AI platforms (e.g., OpenAI, LangChain, LlamaIndex, AWS SageMaker) and knowledge of agent-based systems.

• Cloud Mastery: Deep hands-on experience designing and maintaining infrastructure on AWS.

• System Design: Expertise in microservices, event-driven systems, and RESTful APIs.

• Programming: Proficiency in TypeScript, JavaScript, Node.js, or similar backend technologies.

• Communication: Strong interpersonal and written skills; ability to communicate clearly across engineering and executive stakeholders.

• Education: Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.

Advantages

• Experience working with the U.S. healthcare system (e.g., HIPAA-compliant applications, claims or billing systems).

• Familiarity with AI agent frameworks (e.g., AutoGPT, AgentGPT, ReAct-based architectures).

• Proven track record of deploying AI-driven solutions to production.

• Experience working in early-stage or growth-stage startups.

• Prior collaboration with or employment in FinTech startups.

What We Offer

• An opportunity to positively affect the lives of thousands of patients.

• A flexible lifestyle that fits the modern work-life balance.

• A chance to join a high-growth company.

• Highly skilled co-workers with whom you can grow your skill set.

• Be a part of a team that revolutionizes medical payments in ways never seen before.

• The ability to impact company values and culture in a collaborative environment - we value all comments and suggestions

• Competitive pay and stock options.