Sr. Fullstack Engineer (Agentic workflows)
Confidential
Posted: March 19, 2026
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Quick Summary
Design and evolve the core platform to support hundreds of thousands of global merchants with a focus on scalability, architecture, and complex problem-solving.
Required Skills
Job Description
As a Senior Fullstack Engineer, you will leverage agentic development tools (e.g., Claude Code) to automate portions of the software development lifecycle, enabling a stronger focus on architecture, scalability, and complex problem-solving.
You will play a key role in pioneering how AI-driven workflows improve the speed, reliability, and scalability of our
Merchant Portal.
Responsibilities
Technical Leadership & Architecture
Design and evolve the core platform to support hundreds of thousands of global merchants
Define and execute technical strategies for complex, large-scale, and ambiguous problems
Ensure architectural decisions optimize performance, scalability, and maintainability
Agentic Workflows & SDLC Optimization
Lead adoption of agentic development tools (e.g., Claude Code)
Automate engineering tasks such as:
Boilerplate generation
Refactoring
Automated testing
System migrations
Drive improvements in development velocity and engineering efficiency
Collaboration & Cross-Team Alignment
Partner with cross-functional teams (Product, Security, Analytics, Business)
Align scope and execution across teams to deliver cross-functional initiatives
Collaborate with engineers across the organization to solve shared challenges
Mentorship & Team Development
Mentor engineers and support their technical growth and career development
Promote best practices in engineering standards, tooling, and processes
Strategic Execution
Work closely with Engineering Managers and Team Leads to define and execute the long-term vision
Contribute to continuous improvement of engineering practices and organizational maturity
Required Experience
4+ years of experience as a Fullstack Software Engineer
Strong understanding of distributed systems and system design trade-offs
Proven ability to design and deliver scalable backend systems
Technical Skills
Backend: AWS, gRPC, Kotlin, Python, MySQL, Snowflake, Kubernetes
Frontend: React, TypeScript, ES6 (modern declarative frameworks)
Observability: Sentry, Rollbar, Chronosphere, Kibana
Communication & Collaboration
Excellent written and verbal communication skills
Experience with asynchronous communication, including:
Technical specifications
Architecture Decision Records (ADRs)
Project plans
Soft Skills
Strong collaboration with cross-functional stakeholders
Passion for solving complex problems in multi-team environments
Proactive mindset toward innovation and continuous improvement