Top Senior Software Engineer Jobs in St. Louis, MO

The Senior Software Engineer analyzes, designs, and implements software projects, focusing on Oracle EPM solutions and cloud configurations, and mentors less experienced developers.

As a Sr. Software Engineer at Bloomerang, you will lead technical direction, mentor engineers, and enhance SaaS solutions while utilizing .NET and AI tools. You will ensure scalable, maintainable applications, advocate for Agile workflows, and focus on quality outcomes in software development.

Design and develop software to onboard hardware accelerators and improve cluster-level storage performance. Collaborate across teams, produce design docs, implement and optimize code, perform tuning and RCA, act as DRI, and participate in on-call operations and scaling/validation efforts.

Senior software engineer responsible for architecting and implementing high-scale distributed systems, leading small engineering teams, mentoring junior engineers, and delivering reliable cloud-deployed services using Python, container orchestration, and CI/CD best practices.

Design and implement runtime protocols, formats, and systems to capture, serialize, stream, and replay interactive 3D content across engines. Own C++ runtime and C# APIs across editor, build, simulation, streaming, and playback. Optimize for low-latency, determinism, memory and bandwidth constraints, and build AI interfaces for inspecting and invoking engine state.

Work on Backblaze's storage platform (B2 Object Storage and Computer Backup) to improve durability, throughput, and architecture. Lead technical design, drive implementation of large features, shape coding practices, and participate across design, implementation, testing, and rollouts while collaborating proactively in a remote-first team.

The Staff Software Engineer will architect and implement core services and systems, provide technical leadership, and mentor engineers while focusing on scalable, high-performance software development.

Design, build, and operate large-scale, highly available distributed file storage services on Oracle Cloud. Lead architecture and development, troubleshoot and optimize performance, collaborate with product management, and establish operational best practices.

Build and maintain full-stack features for Marine and RV & Camping platforms, use AI-assisted tools responsibly, collaborate across teams, reduce technical debt, troubleshoot issues, mentor engineers, and write automated tests to ensure production reliability.

Build and support TimescaleDB Enterprise on‑prem deployment and management platform. Develop frontend tooling (React/TypeScript), backend services (Go), deployment automation (Ansible), and operational PostgreSQL tooling. Write tests across unit to end-to-end, collaborate with cross-functional teams, translate operational requirements into pragmatic product solutions, and iterate on reliability and usability.

Build and maintain full-stack features for a React/TypeScript frontend and NestJS/TypeScript backend, integrate LLM-powered conversational agents, design APIs, auth (SSO/SAML), real-time updates, background processing (AWS SQS), database schemas (PostgreSQL/Sequelize), API docs (Swagger), and tests (Jest/pytest). Collaborate on architecture, code review, and production support.

Design, develop, test, and maintain cloud-native, scalable search and distributed system features. Contribute to architecture, ensure reliability, scalability, and security of global cloud infrastructure. Troubleshoot production issues, optimize performance, collaborate with product and UX, and mentor junior engineers.

Senior backend-focused engineer to provide technical leadership across backend, APIs, and data pipelines. Collaborate with product, design, and stakeholders, author documentation, and drive engineering best practices on a distributed remote team building scalable energy software.

As a Staff Engineer, you will design, build, and maintain backend functionality for scalable services, focusing on storage systems and reliability.

The Senior Software Engineer will develop and maintain Docker Desktop's lifecycle components, focusing on installation, updates, and performance across macOS and Windows environments, while debugging complex OS-level issues and collaborating with teams.

Design and implement scalable, highly available Azure Storage backend components. Maintain and automate storage repositories and DevOps pipelines, improve test automation, troubleshoot deployments and networking, act as on-call DRI for reliability, and collaborate on design and operational improvements.

Design, develop, test, document, and support secure external data integrations (APIs, file-based interfaces, ETL) using .NET, Azure, Informatica, and Snowflake. Lead technical delivery, perform impact analysis, provide production support, mentor engineers, and ensure solutions meet security, performance, and governance requirements.

Own and operate the full-stack application surfaces of a live patient-facing product: embeddable React/TypeScript widget, clinician portal, and Python service layer. Advise and make architectural decisions, integrate AI Intake features, ship versioned shared surfaces, keep dependencies current, and mentor junior engineers while partnering closely with AI/ML teammates to coordinate application and model work.

Design, build, and maintain applications, APIs, and services for Magna's Jury Consulting business; partner with stakeholders to translate requirements; contribute to architecture, CI/CD, testing, DevOps, production reliability, and AI-assisted development; mentor engineers and evaluate emerging technologies.

Design, develop, and maintain secure, scalable web applications and APIs for the Records business using C#/.NET and Azure. Collaborate with stakeholders, contribute to architecture and CI/CD, mentor engineers, leverage AI-assisted development tools, and improve production reliability and performance.

Design, build, automate, and support cloud infrastructure and CI/CD for production systems. Run and optimize EKS/Kubernetes at scale, implement IaC (Terraform), observability, security best practices, disaster recovery, and cost optimization. Collaborate with engineering teams, participate in on-call incident response, and produce architecture documentation and operational runbooks.

Senior engineer who designs, builds, tests, and operates scalable backend services (Node.js/TypeScript); leads multi-sprint technical delivery; raises reliability, security (SOC 2) and observability standards; mentors engineers; runs code reviews; owns production readiness and incident response; and partners with Product, DevOps, and customers.

Design, build, and maintain full-stack browser-based ChartCheck web application using JavaScript/TypeScript. Collaborate with cross-functional teams, implement RESTful APIs, work with MongoDB/SQL databases, conduct code reviews, mentor teammates, and ensure secure, compliant healthcare software practices.

The Senior Software Engineer, Payments will design and implement backend infrastructure for a blockchain-integrated banking platform, focusing on payment processing and operations.

Join Dakota's core engineering team to design and implement back-end infrastructure for a blockchain-integrated banking platform, addressing high-visibility projects.