Full-Time

Principal Engineer

Generative & Agentic AI

Zip

Zip

1,001-5,000 employees

Interest-free BNPL payments provider internationally

Compensation Overview

$215k - $270k/yr

+ Bonus + Equity Awards

Remote in USA

Remote

Optional NYC in-office; remote-first for US-based employees.

Category
Software Engineering (2)
,
Required Skills
LLM
Kubernetes
MLOps
Rust
Microsoft Azure
Python
Docker
RAG
Microservices
C#
AWS
Go
Observability
C/C++
Google Cloud Platform
Requirements
  • BS and MS in Computer Science, Software Engineering, or a related field; PhD in AI, ML, or a related domain strongly preferred.
  • 15+ years of software engineering experience, with 5+ years of focused, hands-on work with Large Language Models (LLMs), Agentic AI, and generative AI systems.
  • Demonstrated success leading the design, development, and deployment of production-grade AI/ML systems, including large-scale inference, context management, and continuous learning.
  • Deep expertise in backend systems and distributed architecture; Python required; additional fluency in languages such as C#, C++, Go, or Rust are a plus.
  • Extensive experience with agent frameworks, memory/contextual planning systems, and orchestration of long-running, stateful agents.
  • Strong command of cloud-native development, microservices, and MLOps pipelines (e.g., with Azure, GCP, AWS).
  • Architect-level skill in breaking down complex, emergent problems into scalable, modular, and maintainable systems.
  • Applied experience integrating RLHF, embedding models, RAG (retrieval-augmented generation), and vector databases into modern applications.
  • Exceptional ability to mentor, influence, and align cross-functional engineering teams without formal authority.
  • Strong collaborator across product, design, data science, and security; experience in regulated domains (e.g., fintech, healthcare) is a plus.
  • High emotional intelligence and low-ego leadership style; comfortable driving alignment in ambiguous and high-stakes environments.
  • Strong written and verbal communication skills, with the ability to explain complex technical topics to executive stakeholders and non-technical teams.
  • You are a builder at heart, driven by intellectual curiosity and a desire to push boundaries in how machines learn and operate.
  • You care deeply about system resilience, ethical AI, data privacy, and customer trust.
  • You thrive in early-stage initiatives, and are energized by ambiguity, iteration, and bold goals.
  • Clear communicator and thoughtful builder—able to mentor, align, and influence without ego
  • High intellectual curiosity, ownership mindset, and a passion for building systems that learn, adapt, and improve
Responsibilities
  • Design and build intelligent, autonomous systems that directly enhance the customer experience, enabling AI-powered interactions, personalized repayment journeys, intelligent support agents, and the foundation for a new generation of AI-first products in a dynamic, regulated fintech environment.
  • Prototype quickly, scale deliberately, evaluating emerging frameworks and models, running experiments, and hardening the most promising approaches for production deployment in real-world financial systems.
  • Collaborate across engineering, product, design, compliance, and applied research to identify high-impact use cases and deliver intelligent systems that are resilient, secure, and deeply aligned with user needs.
  • Architect the AI foundation, selecting and integrating the right mix of large language models, orchestration frameworks, vector databases, memory strategies, and tooling to give our agentic systems both intelligence and structure.
  • Champion and evangelize AI-powered engineering, establish and uphold best practices across performance, observability, scalability, and responsible AI, ensuring that everything we build operates with trust, regulatory compliance, and enterprise-grade reliability at scale.
  • Mentor and inspire engineers, cultivating a culture of technical depth, curiosity, and bold innovation as we grow ZIP’s AI capabilities from team-level efforts to a core pillar of our platform strategy.
  • Build fast and learn faster, operating with urgency, deploying frequently, and using real feedback from customers and stakeholders to iterate and improve continuously.
  • Stay at the frontier of agentic AI, tracking new developments across academia and industry, and selectively introducing promising techniques that align with our mission to deliver intelligent, adaptive, and customer-centric fintech experiences.
Desired Qualifications
  • PhD in AI, Machine Learning, or a related domain strongly preferred
  • Experience with regulated domains such as fintech or healthcare is a plus
  • Prior experience leading AI/ML platform initiatives or building from greenfield AI-first architecture

Zip Co provides buy now, pay later (BNPL) services that let people buy things now and pay over time without interest. It operates in markets including Australia, New Zealand, the United Kingdom, the United States, Canada, and Mexico, serving both individual consumers and businesses. Its main products are Zip Pay (for everyday purchases) and Zip Money (for larger expenses). Revenue comes from merchant fees, late fees, and interest on certain products. Zip partners with retailers to offer convenient, transparent payment options that help customers manage their finances, with a focus on simple terms and clear due dates. The company aims to expand globally and grow its market presence by providing flexible, easy-to-use payment solutions that simplify the purchasing process.

Company Size

1,001-5,000

Company Stage

IPO

Headquarters

Sydney, Australia

Founded

2013

Simplify Jobs

Simplify's Take

What believers are saying

  • Q1 FY26 income surged 32.8% to $321.5M; transaction volume jumped 38.7%.
  • $283M Victory Park Capital facility funds US expansion and receivables scaling.
  • GameStop partnership positions Zip as primary BNPL for gaming category.

What critics are saying

  • Afterpay controls 60% US BNPL market share; Zip holds only 5-10%.
  • Net bad debts rose to 1.7% of transaction volume; revenue margins compressed.
  • US State Attorneys General investigation threatens $100M fines and expansion halt.

What makes Zip unique

  • Physical card drives 20% of US volume with 150% YoY growth in in-store transactions.
  • Pay in 2 product targets everyday spending with 95% pilot repurchase intent rate.
  • Serves 100M underserved Americans unable to access traditional credit flexibly.

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Benefits

Parental leave - Enjoy up to 20 weeks paid leave and return part-time on a full-time salary for 3 months!

Bonus scheme - We give you skin in the game through our various share incentive programs.

Family support - We support our ZipFam on their life journey through people policies and programs.

Volunteer leave - Use your paid volunteer leave to Zip it forward and create change in your community.

Reward & recognition - We love celebrating your wins and giving you the freedom to choose how you're rewarded.

Career growth - You'll be given clear progression pathways and transparent coaching so you can truly flourish.

Growth & Insights and Company News

Headcount

6 month growth

0%

1 year growth

0%

2 year growth

0%
The Associated Press
Mar 24th, 2026
IXOPAY and Zip US launch unified trust layer framework for AI-driven commerce

IXOPAY and Zip US have launched the Unified Trust Layer Framework, an open industry initiative addressing trust and liability challenges in AI-initiated commerce. The framework aims to establish identity verification, preserve transaction intent and make trust measurable when AI agents autonomously conduct transactions. The initiative responds to structural shifts in payment systems, which were designed for human-initiated transactions. According to Accenture, 87% of financial institution technology officers believe trust will be the most significant barrier to agentic payments adoption, whilst 78% expect fraud to increase as agentic commerce scales. The framework focuses on three capabilities: agent identity validation, intent capture and preservation, and contextual trust signalling. IXOPAY and Zip are inviting merchants, networks and platforms to help shape the framework's development.

Business Wire
Feb 5th, 2026
Zip launches Pay in 2 option for customers to split purchases into fortnightly instalments

Zip, a digital financial services company, has launched Pay in 2, a new payment option allowing US customers to split purchases into two instalments over two weeks. The product complements Zip's existing Pay in 4 offering, targeting everyday spending within a single billing cycle. The launch follows a pilot programme where 95% of participants said they would use Pay in 2 again, primarily for groceries and bills. The shorter payment window is designed to help customers manage cash flow between paychecks. From 9-15 February, the first 100 daily customers using Pay in 2 will receive one year of no origination fees on subsequent orders. Loans are originated by WebBank and subject to credit approval. Zip operates in Australia, New Zealand and the United States, serving millions of customers across tens of thousands of merchants.

Payments Dive
Dec 19th, 2025
Zip secures $283M credit line from Victory Park Capital for US expansion

Buy now, pay later company Zip has secured a $283 million warehouse facility from Victory Park Capital to support its US expansion. The two-year deal, facilitated with Atlas SP Partners, will back Zip's US BNPL receivables and help scale its funding capacity. Chicago-based Victory Park, a majority-owned affiliate of Janus Henderson Group, has been a long-time funder of the Australian-founded company over the past decade. Zip has also received equity investments, including $100 million from Y Combinator, CRV and Tiger Global in 2023. The funding comes as Zip shows strong growth, with fiscal first-quarter total income surging 32.8% to $321.5 million and transaction volume jumping 38.7% to $3.9 billion. The company is expanding beyond fashion into everyday purchases through partnerships with merchants like Valvoline and Best Buy.

Longbridge
Dec 15th, 2025
Zip Co. Secures $283 Million Warehouse Facility from Victory Park Capital and ATLAS SP Partners

Zip Co. Ltd. has secured a US$283 million warehouse facility in partnership with Victory Park Capital and ATLAS SP Partners to finance its U.S. Buy Now, Pay Later receivables. This two-year facility aims to enhance Zip's funding capacity and scalability in the U.S. market, marking the fourth major financing agreement with VPC since 2015. The facility supports Zip's business expansion and strengthens its U.S. capital management strategy.

TS2.tech
Dec 9th, 2025
Zip Co ramps up $100M buyback, files for US dual listing amid regulatory inquiry

Zip Co shares traded around A$3.15-3.20 on 9 December 2025, stabilising after a sharp pullback that saw the stock fall roughly 20-30% over the past month. The Australian buy now, pay later company disclosed it has now repurchased 32.3 million shares for over A$92 million under its expanded A$100 million buyback programme, which was doubled from A$50 million in October. The company is navigating several key developments simultaneously. It submitted a confidential draft registration statement to the SEC for a potential US dual listing, likely on Nasdaq. However, regulatory concerns emerged as US State Attorneys General issued a voluntary information request, though analysts at Jefferies expect minimal impact. Zip's turnaround continues, with FY2025 revenue reaching A$1.07 billion and net profit of A$79.9 million. Analysts maintain a consensus "buy" rating with an average 12-month price target of A$5.10.