[Remote] Senior Python Back End Engineer

Note: The job is a remote job and is open to candidates in USA. Loadsmart is a growth-stage technology company valued at over $1 billion, focused on reinventing the future of freight. They are seeking a Senior Python Back End Engineer to lead technical initiatives and evolve core systems that power freight brokerage operations.ResponsibilitiesOwn and evolve core systems for freight brokerage operations and related services: quoting, booking, pricing and rate logic, contracts, carrier compliance, facility matching and location/address data quality, and scheduling-oriented workflowsLead technical initiatives across several Python/Django services, including design, phased rollout, and safe deprecation—not only single-service featuresDrive platform and reliability work: database and dependency upgrades, search/indexing changes, performance tuning (queries, indexing, caching), secrets/credential patterns, and tooling that prevents bad deployments (e.g. migration safety, validation pipelines)Ship high-impact product and revenue work: pricing and benchmark integrations, compliance/load-registration flows, feature-flag and segmentation strategies, and scope-shaping that ties technical design to business outcomesDefine engineering standards for the squad and beyond: ADRs, shared client/integration layers, test and observability patterns, and code review culture that teaches (SOLID, architecture, thorough PRs)—including shared patterns between API and UIOperate production systems: incident response, war-room coordination, root-cause analysis, and fast stabilization PRs when freight brokerage operations are at riskCollaborate tightly with product on discovery and requirements—framing problems, narrowing scope with technical options, and sometimes presenting outcomes to senior stakeholdersMentor and level up teammates through pairing, design review, and informal leadership—without necessarily being a people managerSkillsSenior back-end engineer with a track record of owning ambiguous, multi-step projects end-to-end across API and UI (design → implementation → rollout → observability), comparable to tech-lead-level delivery on a business-critical systemStrong Python and Django (or demonstrably deep transfer: e.g. long professional experience in Java/JVM ecosystems plus substantial Python web work in production)PostgreSQL expertise: schema design, production database migrations, query plans, indexing, and fixing latency/regression issues—not only CRUDDistributed systems and multi-service reality: async jobs/queues, events, idempotency, integration failures, and debugging across service boundariesProven impact outside 'greenfield' only: experience in large or evolving codebases, modernization (framework/DB/search/runtime upgrades), or cost/performance work with measurable outcomesProduction mindset: on-call or equivalent experience, incident response, and prioritizing stability under operational loadTechnical leadership without relying on title: examples of leading migrations, integrations, or architecture decisions; mentoring; and aligning engineers across teamsClear written and verbal communication: design docs, ADRs, RFCs, or review threads that other engineers adopt as referenceBenefitsCompetitive base salaries - we believe in rewarding top talentExtremely competitive Equity package - become a shareholder in our company!Loadie Time Off - PTO and sick days without a limitCompany OverviewLoadsmart is the end-to-end AI freight platform for shippers with embedded operational services. It was founded in 2014, and is headquartered in Chicago, Illinois, USA, with a workforce of 501-1000 employees. Its website is http://loadsmart.com/.Company H1B SponsorshipLoadsmart has a track record of offering H1B sponsorships, with 1 in 2025, 2 in 2024, 4 in 2022, 9 in 2021. Please note that this does not guarantee sponsorship for this specific role.