Software Engineer Jobs in Missouri, United States

Global Security (GS) group at HII Mission Technologies develops space combat power and multi-domain simulation software to support force structure planning, synthetic training, and space systems research. The Software Engineer designs, develops, tests, and debugs space simulation applications while leading junior engineers and coordinating with government leadership and customers.

Boeing Global Services (BGS) in Hazelwood, Missouri is seeking a Software Quality Engineer to join a customer-focused team that partners with BGS programs to build a culture of first-time quality throughout the software development lifecycle. Day-to-day, you will assure that software development, control, and verification processes are planned and executed for Boeing-developed and supplier-provided products, guide project decisions, and collaborate with program managers and customers.

The Apple Watch Safety & Communications team seeks a Software Engineer to help deliver a reliable, expertly-polished out-of-box experience for every Apple Watch user. You will take collaborative ownership of watchOS and iOS development focused on Safety features such as Crash Detection and Fall Detection, working closely with Design, QA, Marketing, and other Engineering teams.

VIVIO Health is a Public Benefit Corporation revolutionizing pharmacy benefits management through data and technology, guided by the principle of delivering the right drug at the right price. As a Software Engineer, you will build and support Python services powering pharmacy claims processing, medical claims processing, batch data pipelines, and internal web applications, taking ownership of real features early.

Planet’s Mission Control team builds and operates web‑based tools that enable spacecraft operators and analysts to monitor and control Planet’s satellite fleet. The Software Engineer will develop and maintain microservices, design APIs, and deploy critical infrastructure while collaborating across satellite operations, pipeline, and product groups.

Companion Device Services team at Apple builds the infrastructure that unlocks the power of the Apple Watch by creating system frameworks for pairing and communication with other devices. The role designs and implements high‑traffic system frameworks, optimizes performance across the stack, and collaborates with networking, design, and QA partners to define user‑facing goals for watch setup and pairing.

The Fitness+ client team builds the Fitness+ workout experience across Apple Watch, iPhone, iPad, and Apple TV, working up and down the stack from low-level device communication to video overlay rendering and animation. As a Software Engineer, you will develop the app and frameworks for Fitness+, contribute across different levels of the engineering stack, and collaborate closely with Design, Product Marketing, and QA teams on technical and product decisions.

Apple Watch Setup Experiences team builds the first impression of watchOS by delivering seamless out‑of‑box and onboarding experiences. The Software Engineer designs and implements features for device pairing, Control Center, Settings, and related frameworks, collaborating with design, QA, and cross‑functional teams to ensure high quality on low‑power hardware.

Apple Watch team builds extraordinary applications and frameworks for the Apple Watch. The software engineer designs, develops, and tests device software, collaborating with UI design, iOS apps, frameworks, hardware, and QA teams to deliver high‑quality interactions to millions of users.

Software Developer Foundation team at Apple builds the next‑generation platform for orchestrating and deploying AI agents, providing tools for internal development, MLE, and data science teams. The Senior Software Engineer designs and implements scalable, maintainable features for this distributed, high‑availability system while collaborating cross‑functionally with internal AI and compute teams.

The Apple Media, Graphics & Compute Technologies (MGC) Audio Software Integration team builds the foundation for high-impact audio experiences across Apple products. As a Platform Software Engineer, you will own and evolve the cloud platform behind CI/CD systems, ensuring reliable and scalable delivery of audio software while supporting platform evolution across cloud and internal infrastructure.

Generative AI Experiences Software team at Apple builds cutting‑edge AI capabilities across Apple products. The engineer screens and triages bugs, analyzes logs, and creates tooling to automate issue screening while integrating software with macOS/iOS.

The Senior Software Engineer role sits within the Continuous Integration/Continuous Deployment (CI/CD) and Embedded Software Development Tools organization (VEST) at General Motors. You will design, build, and operate cloud-based CI/CD platforms and pipelines that support GM’s embedded software production and large-scale virtualized test environments, blending CI/CD tooling expertise with cloud infrastructure skills to enable automated builds, scalable Bazel-based build/test systems, and headles

This Software Engineer - Solutions Engineering role is based in the United States and is part of a globally distributed engineering team focused on transforming how modern infrastructure is built, operated, and automated. You will develop open source software that enables efficient DevOps workflows across bare-metal systems, private clouds, Kubernetes, and high-performance computing environments, combining hands-on Python and Go development with deep exposure to the Linux stack.

Data Engineering team at Verse builds a unified energy data platform enabling real-time finance‑ready intelligence for large energy buyers. The role designs, builds and maintains data platform tools, pipelines and orchestration frameworks, ensures data quality and governance, writes shared libraries, and partners closely with data science and AI/ML teams.

This role supports strategic partners within a fast-moving mobile technology ecosystem by designing scalable solutions and managing partner integrations. You will translate complex business needs into technical outcomes, owning the lifecycle from onboarding to optimization while collaborating with engineering and product teams.

Liftoff, a leading AI-powered performance marketing platform for the mobile app economy, seeks a Software Engineer in Partner Engineering to shape technical solutions for top-tier partners. This remote role involves designing and implementing scalable integrations, troubleshooting issues, and collaborating with internal and external stakeholders to drive customer success.

Apple Services Engineering team builds the next‑generation cloud services infrastructure, focusing on CloudKit, Apple’s privacy‑focused database platform that stores and syncs user data at massive scale. The Software Engineer designs and implements fault‑tolerant distributed systems, works on storage, caching, and networking components, and collaborates with cross‑functional teams to launch new capabilities.

Retail and Marcom Engineering, an IS&T team at Apple, builds and operates the systems and experiences that connect Apple’s products with its customers, powering both online and physical stores. As a Backend Engineering Manager you will lead a group of backend engineers designing and scaling distributed, secure services that support millions of daily store interactions, while collaborating closely with product teams to translate business needs into robust architectures.

Engineering team at Aera Technology builds a high‑performance Java based OLAP calculation engine for the Aera Decision Cloud platform. The Senior Software Engineer will design and implement low‑latency core engine components, collaborate with product to translate designs into executable criteria, and champion correctness and quality.