Top Software Engineer Jobs in St. Louis, MO

Build and own frontend applications for DeFi products using Next.js and TypeScript. Develop reusable component libraries and design systems, integrate Solana programs and wallet infrastructure, and translate complex financial concepts into accessible interfaces. Own performance, reliability, observability, testing, analytics, and end-to-end feature delivery while collaborating with protocol engineers, designers, and product teams.

Develop and maintain high-scale JavaScript and TypeScript monetization solutions using Prebid.js, Prebid Server, and Google Ad Manager. Own the header bidding wrapper, integrate auction and ad-tech standards, optimize Core Web Vitals and client-side performance, operate Google Cloud services, review code, document architecture, and resolve production issues.

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.

Develop and enhance ServiceNow applications for federal clients, including configuration, custom development, integrations, scripting, workflows, ACLs, and performance improvements. Provide architectural guidance, advise functional and administrative teams, translate business requirements into technical solutions, support multiple instances and domains, and participate in Agile/Scrum delivery. The role also involves platform stability, enterprise monitoring, customer collaboration, and analysis of large datasets.

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.