Top Software Engineer Jobs in St. Louis, MO

Build and operate large-scale distributed web crawlers that discover, fetch, extract, deduplicate, and recrawl billions of pages. Develop targeted pipelines for audio, video, and multilingual data, transforming web content into training-ready datasets. Create infrastructure and tooling for researchers to request, monitor, evaluate, and explore crawled data, while ensuring reliability, efficiency, compliance, politeness, and rate-limit handling.

Develop and maintain scalable Java backend systems using Spring Boot and microservices architecture. Collaborate with customer teams, review specifications, write clean code, participate in code reviews, document solutions, and troubleshoot and optimize backend performance, reliability, and security. The role also contributes technical expertise to training next-generation AI systems, though prior AI experience is not required.

Develop and maintain secure full-stack web applications using React, C#, .NET, SQL Server, Azure, and related technologies. Design integrations through web APIs, analyze requirements, debug defects, conduct root-cause analysis, write unit tests, perform code reviews, and document implementations. Participate in Agile ceremonies, follow OWASP security practices, uphold coding standards, automate processes, and collaborate with technical and non-technical stakeholders. This is a full-time temporary role through the end of 2026.

Design, build, and scale resilient distributed payment systems handling 1,000+ transactions per second. Collaborate with Product, Revenue Operations, Cloud Platform, and Security teams to shape product requirements and roadmaps. Lead AI-augmented software delivery, code reviews, testing, observability, performance optimization, incident response, on-call rotations, and root cause analysis while maintaining strict security, reliability, and low-latency standards.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.

Lead design and delivery of enterprise Adobe Experience Platform solutions. Architect schemas, identity, ingestion, governance, personalization, and integrations with CRM/data lakes. Optimize CI/CD and deployment processes, mentor engineering teams, coordinate cross‑functional stakeholders, ensure security/privacy compliance, and produce architecture documentation and implementation roadmaps.

Lead and scale a Support Engineering function for Ashby across the Americas. Own vision, operating model, escalation/triage standards, reporting, tooling, and cross-functional feedback with Product and Engineering. Manage a Support Engineering Manager, drive hiring and career paths, and use data to reduce recurring technical friction while balancing immediate customer resolution with durable product improvements.

The Full Stack Engineer will design, build, and maintain scalable web applications, impact customer onboarding and integrations, write and review code, and support technical improvements.

Build and maintain secure, compliant software for a CDC disease surveillance platform. Partner directly with health departments during onboarding, migration, and troubleshooting; diagnose product gaps and configuration issues; develop scripts, integrations, and configurations without forking the core platform; collaborate with platform, data, and epidemiology teams; and identify recurring jurisdiction needs for future product features.

Build polished consumer-facing web and mobile experiences, primarily developing React Native features while maintaining native iOS and Android applications. Collaborate with product and design to turn feedback into shippable improvements. Work across APIs, native integrations, analytics, media, debugging, and existing Swift and Kotlin codebases. Develop with React, TypeScript, Next.js, and modern web technologies while addressing real-device performance, navigation, gestures, responsiveness, and platform-specific issues.