Top Senior Software Engineer Jobs in Huntsville, AL

Build and operate high-throughput backend services for AI agents, calendar, scheduling, integrations, real-time data pipelines, and APIs. Design platform infrastructure, event-driven systems, and client-server protocols using Go, PostgreSQL, Kubernetes, and cloud platforms. Collaborate with AI, product, and frontend teams, improve reliability through testing and infrastructure as code, and mentor junior engineers.

The Founding Engineer will lead the development of Sailor Health's AI-powered platform, building systems for patient care and mentor the engineering team.

Build the core AI platform for an AI-native trading experience. Develop a high-performance Rust backend supporting streaming responses, low-latency tool execution, caching, and model orchestration. Design secure, observable APIs and runtime components with authentication, authorization, rate limiting, auditing, tracing, retries, and fallbacks. Build safe trading action infrastructure with deterministic previews, confirmations, idempotency, and audit logs while partnering with product and frontend teams.

Own and improve Hex’s cloud infrastructure, CI/CD, observability, databases, security, cost management, and single-tenant deployment systems. The role involves selecting and delivering infrastructure projects, operating Kubernetes and AWS environments, scaling PostgreSQL, implementing infrastructure as code, and building customer-facing platform capabilities. Engineers are expected to handle on-call responsibilities, write application code when needed, and independently turn ambiguous infrastructure problems into shippable solutions.

Build and ship backend features end-to-end using Ruby on Rails and SQL. Lead complex technical projects, solve architecture challenges, establish standards, conduct meaningful code reviews, resolve high-risk bugs, document systems, collaborate across engineering teams, and mentor junior engineers.

Leads architecture, development, testing, and sustainment of production test equipment software and simulations for missile defense programs. Drives DevSecOps adoption, factory automation, platform integration, and production improvements. Provides technical leadership to engineering teams and Chief Engineers, supports subcontractor and hardware integration, performs trade studies, mentors team members, and develops solutions for future test equipment platforms. The role requires significant software engineering experience, missile defense expertise, LabVIEW, hardware integration, and an active Secret clearance.

Own QA strategy and release quality for POS, back-office, and payments products. Build automated unit, integration, API, contract, and end-to-end tests; integrate testing into GitHub Actions; validate hardware, offline modes, payment flows, and upgrades; establish release gates and test environments; monitor quality metrics; reproduce merchant issues; and coach engineers on testable design and quality practices.

Develops and integrates embedded software systems across the full software development lifecycle. Responsibilities include architecture development, requirements analysis, software implementation, design reviews, system analysis, trade studies, verification, validation, and technical documentation. The role requires C++ development in embedded environments, UML-based object-oriented design, and familiarity with SDLC, documentation standards, and CMMI methodologies. Experience with VxWorks, IBM Rhapsody, and IBM DOORS is preferred.

Develop embedded software and system architectures supporting US Army programs. Responsibilities include managing requirements, reviewing specifications and interfaces, participating in system design and trade studies, validating documentation, and supporting design reviews and configuration control. The role requires software development process knowledge, Linux and C++, UML-based object-oriented development, and an active Secret clearance.

Develop and integrate weapon system models, simulations, and secure applications for MSIC. Design secure architectures, participate in threat modeling and vulnerability remediation, and deploy applications across virtualized and cloud environments. Build containers, microservices, IaC templates, automation, monitoring, logging, dashboards, and documentation. Collaborate with cybersecurity, network, and systems engineering teams while supporting testing, security controls, and application integration.

Lead the architecture, development, verification, integration, and operation of high-reliability, real-time embedded flight software for spacecraft avionics. Provide technical direction and mentorship, derive and verify requirements, lead design and code reviews, manage integration testing, resolve complex anomalies, mitigate risks, and communicate technical status to leadership across the spacecraft lifecycle.

Design, develop, integrate, and test embedded flight software for spacecraft avionics. Implement and verify requirements, build multithreaded real-time systems and test environments, resolve hardware/software integration issues, define interfaces, conduct reviews, support Agile and DevOps practices, and contribute to integration, mission readiness, and spacecraft operations.

Develop and maintain real-time and digital missile defense modeling and simulation software. Responsibilities include building simulation infrastructure, integrating component models, developing interfaces, testing, troubleshooting, containerizing deployments, managing code with Git, analyzing simulation results, and collaborating with engineers and technical personnel. The role supports reliable simulation products across development, verification, validation, and delivery lifecycles.

Develop and architect scalable iOS applications serving millions of users. Collaborate with Product, Design, and Engineering to deliver features, promote clean architecture and iOS best practices, monitor performance and crash analytics, and guide technical excellence. Requires strong Swift, SwiftUI, MVVM, API integration, persistence, testing, and code quality expertise.

Develop and deploy software applications, workflow automations, dashboards, scripts, integrations, and collaboration tools supporting Missile Defense Agency modeling and simulation. Use Microsoft Power Platform, SharePoint, AI-assisted development tools, and data visualization technologies to modernize engineering workflows. Translate stakeholder requirements into secure, maintainable solutions; participate in Agile development, documentation, demonstrations, and technical reviews. The role requires collaboration with engineers, analysts, product owners, and government mission stakeholders.

Design, build, deploy, and maintain resilient, scalable software for Toast Delivery Services. Develop real-time delivery tracking, driver matching, pricing, refunds, and payment-related systems. Solve distributed-systems and scaling challenges, integrate with partner APIs, uphold production reliability, promote strong engineering practices, and mentor teammates.

Own the architecture and technical direction for provider-sourced client products, including lead management, caseload migration, AI-powered inquiry workflows, and provider marketing tools. Partner cross-functionally with product, design, data, sales, customer experience, and pricing teams. Build reliable user-facing systems, guide technical decisions across teams, measure product impact through experimentation, and influence teams without direct authority.

Architect and operate Affirm’s large-scale Amazon EKS compute platform, including cluster lifecycle, node management, autoscaling, shared components, infrastructure automation, workload safety policies, observability, cost and capacity optimization, and self-service workflows. The role drives technical strategy, mentors engineers, partners cross-functionally, and participates in on-call incident response.

Build and ship a full-stack data collection and search platform for defense and intelligence users. Develop frontend, backend, data ingestion, storage, indexing, APIs, and agentic AI capabilities using TypeScript, React, Tailwind, Node.js, PostgreSQL, and AWS. Partner with mission owners, customers, designers, and engineers to translate intelligence workflows into intuitive, mission-ready products supporting information analysis and visualization.

Design and implement containerization and virtualization strategies for mission-critical command-and-control software. Decompose applications into containerized services, build Docker and Helm artifacts, administer Kubernetes or OpenShift and virtualization platforms, optimize performance, integrate CI/CD automation, and implement monitoring, logging, security hardening, and infrastructure-as-code. Collaborate with software, systems, cybersecurity, and operations teams while maintaining technical documentation and supporting migration activities.

Build and optimize automated release engineering systems, including CI/CD pipelines, build and deployment tooling, and AWS cloud infrastructure. Ensure software delivery quality, security, compliance, and reliability. Lead complex projects, participate in on-call support, mentor teammates, and promote technical excellence. The role uses Go, Java/Kotlin, TypeScript, GitHub Actions, PostgreSQL, DynamoDB, Backstage, AWS, and AI development tools.

Build and optimize growth systems that increase patient bookings and engagement. Design experiments across messaging, outreach, and in-product booking flows; develop backend systems for experimentation and activation; monitor funnel metrics; analyze drop-offs; prioritize growth opportunities; and collaborate with product, design, data, and operations teams. The role emphasizes rapid experimentation, product-led growth, and measurable improvements in activation, conversion, retention, and booking.

Lead the architecture and technical strategy for Affirm’s high-volume observability platform. Design telemetry pipelines and sampling strategies, improve reliability and cost efficiency, integrate observability into AI-assisted development, and drive platform adoption across engineering teams. Remain hands-on while mentoring six engineers, leading cross-functional initiatives, establishing engineering standards, and overseeing monitoring, alerting, on-call operations, and system availability.

Staff Software Engineer responsible for leading design and delivery of large-scale order platform capabilities spanning cloud and point-of-sale systems. The role drives architecture, performance, reliability, API design, code quality, incident response, and technical roadmap alignment. It also requires cross-team collaboration, domain expertise in order processing and synchronization, mentoring engineers, and using AI-assisted development tools to improve productivity.

Drives performance engineering and scalability across software systems by identifying bottlenecks, optimizing code, queries, databases, and architecture, and implementing fixes. Builds performance frameworks, data-generation tools, benchmarks, and CI/CD automation using k6, JavaScript, Grafana, and InfluxDB. Establishes performance standards, investigates distributed systems and cloud environments, documents architectural decisions, and collaborates with engineering teams to improve throughput, latency, reliability, and efficiency.