Top Software Engineer Jobs in St. Louis, MO

Develop and maintain Java-based applications using REST/SOAP services, Hibernate/JPA, and Spring. Implement CI pipelines, unit/integration tests, manage source control and app servers, design/optimize databases, document technical solutions, and liaise with clients and development teams.

Lead design and implementation of iOS and Android applications, including offline data storage and API integrations (e.g., Salesforce). Oversee configuration, testing, data conversion, and system interface definition. Analyze specifications, recommend configuration changes, and work directly with client implementation teams to deliver large-scale business application solutions.

The C# Developer will enhance and develop applications across various tiers, requiring strong analysis, design skills and proficiency in C# and .NET environments.

The Big Data Architect will design and implement solutions using IBM Big Insights and troubleshoot related technologies while coordinating travel to Toronto monthly.

Supports software engineers and cross-functional partners with coding, debugging, technical documentation, automated testing, and software development. Translates user stories and requirements into test scripts and software components, while contributing to technical design, planning, testing, and implementation within an Agile development environment. This is a 10-week remote internship for a currently enrolled college student.

Software Engineering Intern supporting coding, debugging, technical documentation, automated testing, software development, and Agile project implementation. The intern will collaborate with engineers, test teams, business partners, and leaders while translating user stories into software components and test scripts. The 10-week remote program requires current junior-level enrollment in an accredited college or university, preferably studying Computer Science or Information Technology.

Develop and improve gameplay systems in C++, including character controls, abilities, enemy behaviors, interactive objects, platform features, trophies, and visual effects. Investigate and fix bugs while collaborating with experienced gameplay programmers. The internship provides mentorship and hands-on experience with game development workflows and technical problem-solving.

Provides technical leadership across multiple agile engineering teams, designing, developing, and maintaining complex distributed software systems. Responsibilities include translating product requirements into scalable designs, writing and reviewing code, leading sprint teams, removing delivery impediments, mentoring engineers, collaborating with product managers, and guiding technical strategy. The role emphasizes microservices, cloud platforms, containerization, APIs, messaging, workflow orchestration, DevSecOps, observability, performance, security, and operational excellence.

Leads and develops backend software engineering managers and technical teams, establishes development metrics and delivery processes, and drives high-quality product releases. Partners with design and business teams on customer-centered experiences, facilitates cross-functional planning, mentors employees, improves engineering practices, and supports long-term organizational and product goals.

Build and operate end-to-end, consumer-scale features across backend services, APIs, iOS, and Android for Life360’s Aging in Place vertical. Use AI-native and agentic workflows with LLMs, contribute to architecture and code reviews, participate in on-call response, mentor teammates, and establish AI engineering practices adopted across the organization. Collaborate with product and design while ensuring performance, reliability, accessibility, and member-focused outcomes.

Owns the end-to-end development of iOS monetization experiences, including paywalls, pricing, subscriptions, upgrades, and purchases across global storefronts. Partners with product, design, analytics, finance, and legal to prototype, experiment, launch, and optimize reliable consumer-scale features. Responsibilities include architecture, performance optimization, staged rollouts, code reviews, mentoring, and advancing AI-native engineering practices.

Develop and maintain Ruby on Rails backend systems supporting solar development, value evaluation, and loan servicing. Responsibilities include writing and reviewing code, maintaining CI/CD pipelines, solving complex domain problems, collaborating with Product and company experts, shaping architecture and technical direction, and improving engineering processes as the company scales.