Lead Engineer

About the role

The WMS-Core team at Cart.com is seeking a Lead Engineer to design, develop, and optimize our WMS Core technology solutions. You will play a key role in building and maintaining scalable software that powers the core WMS capability and also Automation integration of third-party vendors like PTL, INVATA, Locus etc. As a Lead engineer, you will collaborate cross-functionally to drive technical initiatives, improve system performance, and mentor junior engineers.

Responsibilities

• Own the architecture and design direction for the services the team ships, and write the design docs that get the team aligned before code starts.
• Review pull requests daily. Use review as the main channel for raising the team's standards, not as a rubber stamp.
• Mentor engineers through pairing, design feedback and walking them through production investigations.
• Act as subject matter expert for warehouse Core and automation systems, for both engineering peers and warehouse operations.
• Break operational problems into scoped, sequenced work with product and the engineering Leaders.
• Maintain CI/CD pipelines and release mechanics so deployments stay routine and low touch.
• Lead production investigations. Find the root cause, ship the fix and close the gap that let it through.
• Support releases across multiple fulfillment centers with no disruption to daily operations.
• Prepare for peak season through load testing, capacity planning and clear escalation paths.

Requirements

• 10 or more years writing production software, with recent hands-on time in the codebase.
• Demonstrated technical leadership of a team, whether as tech lead, staff engineer or a manager who kept coding.
• Deep production experience with C#, Python, Java , .NET Core, and with microservice architectures at scale.
• Working knowledge of event streaming and messaging with Kafka, RabbitMQ or an equivalent platform.
• Experience with both relational and document databases, for example SQL Server, Oracle, MySQL and MongoDB, Postgres.
• Hands-on ownership of CI/CD pipelines, branching strategy and release mechanics.
• Strong testing instincts, including test strategy, automation frameworks and code review practice.
• Track record supporting production systems that operations teams depend on during business hours and peak periods.

Qualifications

• Direct experience with warehouse management systems, fulfillment operations or parcel logistics.
• Experience integrating warehouse automation equipment such as sort-to-light systems, conveyor controls or scanning devices.
• Experience building or supporting mobile and handheld applications used by warehouse operators.
• Experience working alongside distributed or offshore teams across time zones.
• Cloud experience on AWS, with container orchestration in Kubernetes or Rancher.
• Familiarity with observability tooling such as Kibana, SumoLogic or comparable platforms.
• Experience owning a product end to end, including taking user feedback straight into the roadmap.

Skills

• Languages: C#, JavaScript, Node.js, Python, PowerShell, Java, SQL
• Frameworks: .NET Core, .NET Framework, ASP.NET, Angular etc.
• ORM frameworks.
• Data: SQL Server, MongoDB, Redis, Oracle, MySQL, postgreSQL
• Messaging: Kafka, RabbitMQ, Hangfire, enterprise service bus patterns
• Infrastructure: AWS, Docker, Kubernetes, Rancher etc.
• Testing: xUnit, NUnit, Moq, WireMock, Selenium, Playwright, Postman, POM
• Delivery: Git, GitLab, BitBucket, TeamCity, Octopus Deploy
• Observability: Kibana, SumoLogic, DataDog etc.

Benefits

• Remote work option available.
• Comprehensive benefits package.
• Flexible schedule options.
• Professional development opportunities.
• Work-life balance support.

Pay

Competitive salary based on experience and qualifications.

Schedule

Full-time, Monday through Friday, with flexible start times.