Software Engineer - Mission Systems/Integration

Company Overview ACS (Allen Control Systems) is a defense technology company building precision robotic systems for the United States and its allies. Founded by two former U.S. Navy electrical engineers with deep experience in robotics and software, ACS brings together AI, computer vision, precision motion, and advanced hardware to solve complex defense challenges across land, air, and maritime environments. Our flagship product, Bullfrog, is an autonomous precision weapon system that transforms existing weapons into highly accurate counter-drone systems — giving warfighters a scalable, cost-effective response to one of the fastest-growing threats on the modern battlefield. Bullfrog is deployed with U.S. forces, and ACS works with organizations throughout the U.S. military and national security community. Following a $200 million Series B at a $2.2 billion valuation, ACS is rapidly expanding manufacturing, accelerating Bullfrog deployments, and developing the next generation of autonomous battlefield systems. This is an opportunity to join a proven, fast-moving team and help scale technology with direct, real-world impact on national security. ACS is headquartered in Austin, Texas, with additional operations in Alexandria, Virginia; Mountain View, California; and Huntsville, Alabama. For more information, visit allencontrolsystems.com . Position Overview We' are seeking a Software Systems-Integration Engineer to connect our platform to the outside world. In this role you will be responsible for integrating third-party sensors, wiring in sensor fusion and tracking, and building the external API that command-and-control systems and partners consume. We’re hiring across multiple experience levels, including: Associate Software Engineer. Software Engineer. Senior Software Engineer. Staff Software Engineer. Senior Staff Software Engineer. Your title and level will be determined based on your experience, skills, and the scope of responsibility appropriate for the role. What You'll Do Integrate third-party sensors (radar, RF, EO/IR) into the platform. Integrate sensor fusion and the nearby-target tracker output from the Perception team. Design and build the external API for consumption by command-and-control and partner systems. Own networking, transport, and messaging between subsystems and external consumers. Build and maintain command-and-control (C2) integrations. What You'll Need (swap into the core) Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field. Strong proficiency in C++ and Python . Solid networking fundamentals (TCP/IP, sockets, real-world protocol debugging). Experience designing or consuming APIs and integrating heterogeneous systems. Distributed-systems fundamentals. You'll Stand Out API design across REST, WebSockets/SSE, and gRPC/protobuf. Pub/sub and middleware (Zenoh, DDS, ROS 2, MQTT). Sensor / radar / RF integration experience. Defense C2 standards or interoperability work. What We Offer: Competitive salary ACS Equity Package Health, Dental, Vision Insurance Paid Time Off Allen Control Systems is an Equal Opportunity Employer, providing equal employment opportunities to all employees and applicants for employment. Allen Control Systems prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws.