Top Software Engineer Jobs in St. Louis, MO

Build and scale a fintech platform across accounting, tax, and banking. Own feature lifecycle from design to deployment, write backend and frontend code, improve infrastructure and reliability, and collaborate with product and design to deliver customer-focused features.

Design, develop, and maintain NetSuite customizations, SuiteScript solutions, workflows, APIs, and third-party integrations. Configure ERP, CRM, and financial modules; improve 3PL integrations; deploy code across environments; conduct code reviews; mentor junior developers; document technical designs; and collaborate with administrators, developers, product owners, and cross-functional teams using Agile practices.

Manages software engineers and integration specialists building, deploying, and operating Fastpath Access Governance services. Owns the technical roadmap, delivery, quality, architecture, and operational health of cloud-native services. Partners with product, UX, and architecture teams in Scrum, drives AI-assisted engineering practices, oversees ERP and business application integrations, and develops a supportive, high-performing engineering culture.

Build and maintain scalable full-stack learning platform products using Python/Django, SQL, React, and TypeScript. Responsibilities include shipping maintainable code, fixing bugs, optimizing performance, designing relational data models, collaborating with product and design teams, participating in operational reviews and code reviews, documenting work, and mentoring others. The role also emphasizes security, privacy, data consistency, and responsible use of AI-assisted development tools.

Design, implement, and maintain scalable backend systems supporting Alpaca’s financial ledger and brokerage infrastructure. Own high-visibility features from design through deployment, collaborate with finance, operations, product, and engineering stakeholders, and improve system health. Build performant, reliable, maintainable services using modern distributed systems technologies while ensuring the ledger remains a correct source of truth for account transactions, reporting, and compliance.

Leads architecture, delivery, production operations, reliability, modernization, and engineering organization across three regulated product lines. Establishes technical standards, governs infrastructure and CI/CD, owns SLOs and incident improvement, advances federated data and governed AI capabilities, and modernizes clinical and diagnostic platforms. Manages distributed teams across India and Serbia, develops leadership depth, makes architecture decisions, reviews code and infrastructure, and partners with security, compliance, quality, product, customers, funders, and auditors.

Architect and develop MuleSoft integrations, APIs, connectors, and flows across enterprise systems. Oversee platform architecture, deployment automation, security, authentication, governance, and alignment with technology strategy. Build integrations using Mule 4, CloudHub, DataWeave, and Anypoint Platform while documenting data flows and technical designs. Provide subject matter expertise, guide internal and vendor resources, lead requirements gathering, and mentor technical teams.

Designs, develops, tests, and maintains full-stack web applications, including front-end interfaces, back-end services, APIs, servers, and databases. Builds scalable, high-performing solutions, supports database optimization, troubleshoots complex defects, participates in architecture and release activities, and mentors junior developers.

Build and maintain backend services, APIs, relational database integrations, automated tests, and Blazor web interfaces. Implement features and bug fixes, participate in code reviews, improve observability, and help operate deployments using containers, CI/CD pipelines, and Kubernetes. The role is designed for early-career engineers who will collaborate with senior team members, use AI coding assistants, document their work, and progressively take ownership of larger platform components.

Develop and maintain Salesforce solutions, Apex code, platform configurations, data flows, and API integrations. Identify and implement system enhancements, troubleshoot complex Salesforce and data issues, support production operations, and maintain technical documentation. Collaborate in Agile processes, manage software changes through the SDLC, contribute to integrations with enterprise platforms, and mentor junior team members as appropriate.