Your impact starts here: every person at Shippo plays a direct role in shaping the infrastructure that powers global commerce and makes shipping simpler for businesses around the world.

How we will deliver success together:

The Data Products team is building Shippo's next generation of customer-facing data and intelligence products-turning shipping data into actionable insights, automated recommendations, and configurable rule-driven experiences that help merchants make smarter decisions at scale.

We're hiring a Software Engineer III to join this team as a foundational member. You'll work primarily in Python on backend services (~70% of your time) and contribute to React surfaces where merchants and internal users configure and observe these decisions (~30%). You'll ship features end-to-end, own meaningful pieces of the rules engine over time, and grow into broader scope as the product matures.

Shipping & handling responsibilities

• Build and own components of the rule evaluation engine - the decision logic at the heart of Data Products - including authoring rules, evaluating them at scale, and exposing results to downstream systems.
• Develop backend services in Python (FastAPI) that handle high-throughput, low-latency evaluation workloads.
• Work with event-driven infrastructure (Kafka or equivalent) to integrate the engine with upstream data sources and downstream consumers.
• Design and evolve data models that support auditability, versioning, and reproducibility of rule outcomes.
• Build React interfaces that let merchants and internal users configure rules, inspect evaluations, and trust the system.
• Contribute across the full spectrum of the Data Products team's work-business rules automation, ML-based APIs, customer-facing analytics, and intelligent recommendation systems.
• Partner with Data Science, Analytics Engineering, and Product to translate analytical signals into productionized decisions.
• Instrument what you ship: write meaningful tests, add metrics and tracing, and use production data to validate that changes landed as intended.
• Participate in team oncall and incident response for the services you own.
• Contribute to API design, service decomposition, and cross-team technical reviews as you grow into broader ownership.
• Help onboard new team members and share knowledge through code reviews, design docs, and pairing.
• Use AI coding tools (Claude, Cursor) effectively in your daily workflow and contribute to evolving team norms around them.

Your shipping requirements

• 6+ years of professional software engineering experience, with at least 2 years shipping production full-stack features.
• Strong Python backend skills; FastAPI (or comparable async Python framework) experience preferred.
• Hands-on experience with event-driven systems (Kafka or equivalent) in production.
• Solid PostgreSQL skills, including schema design, indexing, and query performance.
• Production-level React experience, including state management and integration with backend APIs.
• Comfortable shipping behind feature flags, instrumenting code for observability, and iterating based on production signal.
• Practiced at writing tests (unit and integration) and treating reliability as part of the work, not a follow-up task.
• Strong written communication; able to write a clear design doc, scope a feature, and unblock yourself across teams.
• Curious about the domain - willing to learn the shipping and logistics context deeply enough to make good product calls.

Bonus

• Prior experience designing or building rule engines, evaluation logic, or decision systems is a strong plus.
• Domain experience in shipping, logistics, carrier APIs, or rate selection.
• Experience with feature flags and progressive rollout systems.
• Familiarity with observability tooling.
• Experience working alongside data science or ML teams to productionize their outputs.

What is in the Shippo Package?

• Healthcare coverage for medical, dental, and vision (90% covered by the company, incl. dependents). Pets coverage is also available!
• Take-as-much-as-you-need vacation policy & flexible working hours
• One week-long company wide winter slow down
• 3 Volunteer Days Off (VTOs)
• WFH stipend to set up your home office
• Charity donation match up to $100
• Dedicated programs, coaching, tools, and resources for your professional and career growth as well as an individual learning stipend for your personal and focused growth
• Fun team in person time through our Shippos Everywhere program which includes regular team and company off-sites throughout the year as well as local Shippos gatherings

Compensation

Our Compensation Shippolicy:

We believe compensation is a custom experience and are commited to fair and equitable compensation practices. The standard base pay range for this role is min is $134K to a max $181K annual salary (we tend to anchor our offers at the mid point $157K). Since we are focused on hiring Shippos Everywhere, we have 2 US pay ranges, a standard compensation range for the majority of the US and a standard +1 compensation range for those who live in areas where the cost of labor is higher, such as NYC and California.

The actual base pay is dependent upon many factors, such as: financial budgets, work experience, training, transferable skills, business needs, and market value. The base pay salary ranges are subject to change and may be modified in the future. Total compensation for this role will include, equity, medical, dental, vision and other benefits noted in our Shippos "package" section.

Shippos in the wild:

Our people, much like the packages we help ship, are all over the world. This means, through our remote-first program, "Shippos Everywhere", our roles can be based anywhere in the US with the exception of Delaware, Nevada, Ohio, Oregon, Hawaii, New Mexico and West Virginia and many roles can be based internationally.

For locations outside of the US and Ireland, the employment contracts are powered by Rippling.com.