Top Software Engineer Jobs in St. Louis, MO

Provides technical leadership across multiple engineering teams, shaping architecture and executing complex cross-cutting initiatives. Translates ambiguous requirements into scalable solutions, partners with product and business stakeholders, reviews designs and code, mentors engineers, and promotes reliability, observability, engineering standards, and operational excellence. The role also supports platform modernization, large-scale production systems, organizational growth, and cost-aware engineering practices.

Leads the engineering organization responsible for Maritz Rewards, Fulfillment, and Commerce platforms. Defines technology strategy and architecture, guides cloud and commerce technology decisions, promotes responsible AI-assisted development, and mentors managers and architects. Manages executive, client, vendor, security, compliance, budget, and operational relationships while driving scalable, secure solutions across catalog, redemption, order management, payments, and fulfillment integrations.

Develop and release Esri software for GIS, photogrammetry, remote sensing, defense, and intelligence workflows. Build high-performance image processing capabilities, algorithms, APIs, cloud-friendly desktop and enterprise applications, and support multiple imagery modalities and data formats. Collaborate with developers and product engineers to integrate libraries into ArcGIS, solve complex application-design problems, and mentor junior developers.

Develop and operate scalable applications across backend and UI layers using modern software practices, including microservices, serverless computing, CI/CD, and infrastructure as code. Perform testing, deployment, documentation, debugging, performance analysis, issue resolution, and system integration. Contribute to architecture, technology roadmaps, agile planning, code reviews, and sprint deliverables while supporting secure and operationally excellent systems.

Develop enterprise and customer-facing media playback solutions within a collaborative development team. Build web and mobile applications using C#, ASP.NET MVC, AngularJS, .NET, JavaScript, Java, Objective-C, Swift, and Python. Implement advanced video security features including forensic watermarking, DRM, and encryption. Collaborate with team members, document technical specifications, communicate with customers, and support project completion.

Leads end-to-end software development for AI-infused enterprise applications, including architecture, database design, coding, testing, deployment, and service reliability. Builds Copilot and agentic solutions using Azure and modern full-stack technologies. Provides technical leadership, mentors engineers, establishes quality and security practices, supports enterprise integrations, and collaborates with product teams, program managers, UX designers, and data scientists to deliver scalable commercial software.

Leads architecture, technical strategy, and roadmap for Windows ML compiler infrastructure, execution runtimes, hardware acceleration, and developer tooling. Drives AI workload optimization across CPUs, GPUs, and NPUs; partners with hardware vendors and internal platform teams; solves complex systems challenges involving scheduling, memory management, code generation, graph optimization, and hardware abstraction. Provides technical leadership and mentorship while shaping on-device and generative AI execution strategy.

Own the networking architecture and roadmap for AKS Flex and Unbounded, enabling secure, reliable, high-performance Kubernetes connectivity across sites, clouds, edge environments, and on-premises infrastructure. Design overlay and underlay networks, routing, encrypted tunnels, eBPF dataplanes, and distributed systems for high-latency and partitioned environments. Integrate InfiniBand and RDMA for AI workloads, lead cross-team architecture efforts, improve global fleet performance and reliability, and participate in production operations and on-call rotations.

Supports the Salesforce team with Financial Services Cloud administration, user support, issue resolution, data mappings, integrations, enhancements, development, testing, defect resolution, and project work. The intern gains exposure to Salesforce functionality, application lifecycle processes, and connections between business applications and data flows while working with team members and a designated coach.

Build and operate large-scale audio data pipelines for AI model training. The role involves discovering data sources, developing reliable data-processing systems, optimizing quality, throughput, and cost, and collaborating with AI scientists. The engineer will own projects from discovery through implementation and ongoing improvement, using strong backend engineering skills in Python, Bash, and Linux environments.

Build and maintain backend services and metadata pipelines supporting data discovery, governance, and AI/ML workflows. Responsibilities include integrating relational databases, developing Java, Node.js, and Python services, optimizing distributed pipelines, implementing Terraform infrastructure, supporting GitLab CI/CD, and writing comprehensive tests. The role also involves troubleshooting scalability and reliability issues, designing asynchronous workflows, and collaborating on modern data lake, search, metadata, and LLM-enabled technologies.

Develops, customizes, integrates, and maintains COTS applications supporting HR, financial, and customer relationship systems. Responsibilities include SQL reporting, BI and API integration, database and query management, configuration control, data conversion and migration, defect resolution, Tier 3 support, and platform modernization. Coordinates with stakeholders to align technical work with business requirements while supporting national security missions.