Sr. Software Engineer II

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Sr. Software Engineer II in USA

Zoro
Full time
Email

USA
10/08/2026
Report

Chicago, IL

Responsibilities

Own the technical direction, architecture, interfaces, service boundaries, schemas, and data contracts for the team's systems.
Build and review production backend services, APIs, shared libraries, operational data stores, and data-processing systems while staying hands-on weekly.
Partner with product managers on feasibility, sequencing, and tradeoffs.
Partner with Data Scientists and ML Engineers from problem framing through production serving, monitoring, and retraining.
Lead design reviews and RFC discussions and make cross-cutting technical decisions.
Support engineer development through code reviews and partnership with the engineering manager.
Own operational health, including on-call quality, observability, and production systems.

Requirements

Bachelor's or master's degree in Computer Science, Applied Mathematics, Engineering, or a related field, or equivalent practical experience.
At least 7 years of experience building production software, including at least 2 years as a Tech Lead for a team or significant system.
Experience building production backend services, APIs, internal platforms, or distributed applications.
Experience designing APIs, data contracts, and operational databases consumed by other teams.
Familiarity with asynchronous processing, queues, event-driven systems, change-data capture, idempotency, retries, concurrency, and backward compatibility.
Working knowledge of machine learning and data science concepts, including feature engineering, evaluation, training and serving skew, drift, and retraining.
Experience taking a model from notebook to production and leading technical discussions across software engineering and machine learning or data science.
Experience improving team output through interfaces, tooling, or work decomposition and leading engineers without direct authority.
Familiarity with cloud infrastructure, containers, CI/CD, infrastructure as code, and observability.
Strong programming skills beyond SQL and experience owning systems through deployment, incident response, and on-call.
Practical judgment about effective and unreliable uses of AI tools.

Benefits

Medical, dental, vision, and life insurance coverage begins on the first day of employment.
Paid parental leave, maternity support, nursing benefits, and adoption assistance are provided.
Employees receive six licensed therapist sessions annually and Wellhub membership.
At least 18 paid time-off days and six company holidays are provided annually for full-time employees.
The company contributes 6% to a 401(k) plan each pay period without requiring employee contributions.
Tuition reimbursement, student loan refinancing, financial counseling, charitable gift matching, employee discounts, and civic and cultural institution admission are available.
Office perks include a coffee bar, beer on tap, unlimited snacks, an onsite gym, and city skyline views.
The role uses a hybrid work model requiring team members to be onsite at least two days per week at the Chicago headquarters.

Salary: $116k - $193k/yr

Zoro

Zoro is an eCommerce platform that offers nearly 12 million tools, parts, and supplies tailored for business customers. By creating a B2C-like experience in the B2B landscape, Zoro stands out as a leader in digital innovation at the intersection of technology and distribution.

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