Jobs at Haystack

Senior Cybersecurity Engineer applying cybersecurity principles throughout system lifecycles to identify and reduce cyber risk. Responsibilities include building and applying threat models (STRIDE, PASTA, attack trees), analyzing complex systems and architectures from a security perspective, identifying vulnerabilities and weaknesses, evaluating defensive technologies, and translating findings into actionable recommendations.…See more Requires 7+ years of industry experience, deep knowledge of cybersecurity engineering, system/network security, vulnerability analysis, and cyber risk management, plus an active DoD Secret Clearance with ability to obtain TS/SCI.

This role focuses on SQL Server database engineering, including schema design, stored procedures, query optimization, and administration. The engineer will develop business automation solutions using MS Access, VBA, and T-SQL, participate in code reviews, and communicate with technical and non-technical stakeholders.…See more Key responsibilities include ETL and reporting work, Access database development with linked SQL Server tables, and SQL Server Reporting Services and Integration Services implementation.

Design UX strategies and responsive solutions across multiple platform types, leading the design and execution of usable user experiences, frameworks, and information architectures. Develop interactive prototypes using industry-standard design tools, provide guidance to developers and engineers, and manage concurrent UX research and design processes.…See more Requires 5+ years delivering UX for mobile products and proficiency with Sketch, Pixate, and Adobe Creative Suite.

Design and develop production software for machine learning acceleration servers, including systems software for custom accelerator chip initialization, device drivers (I2C, SPI, PCIe), and server-side monitoring and testing tools. Collaborate with hardware, test, and manufacturing teams to build integrated software packages.…See more Write maintainable, tested code in C, C++, Python, and Lua across the full software development lifecycle.

Build and extend Go services, REST APIs, and database schemas for a multi-tenant Kubernetes-native AI infrastructure control plane. Write comprehensive unit, integration, and end-to-end tests; debug complex full-stack issues; contribute to internal tooling and client SDKs; and participate in code reviews and technical documentation.…See more Requires strong CS fundamentals (data structures, algorithms, concurrency, networking), proficiency in at least one systems/backend language with ability to learn Go quickly, SQL/relational data modeling knowledge, and comfort with Git, CLI, and Linux.

Design, develop, and maintain SQL Server databases and business software solutions for defense and national security programs. Responsibilities include schema design, stored procedures, ETL workflows, and reporting; supporting MS Access and SQL Server integration; and actively participating in code reviews and system enhancements.…See more Requires significant experience with SQL Server, T-SQL, VBA, ETL, and ASP.NET/frameworks web development.

Design UX strategies and responsive solutions across multiple platform types, leading the creation of highly usable user experience designs, frameworks, and information architectures. Develop interactive prototypes using industry-standard tools like Sketch, Pixate, and Adobe Creative Suite, and provide guidance to developers, engineers, and testers.…See more Requires 5+ years delivering UX for mobile products and a BA/BS in Design, HCI, Computer Science, or Engineering.

Design, implement, and optimize advanced algorithms for next-generation sensor systems, with focus on high-performance backend systems for scientific computing and distributed environments. Translate and enhance existing code for GPU/CUDA acceleration, parallel/distributed execution, and scalability.…See more Requires 6+ years of backend software development experience (or Master's with 4+ years) with demonstrated expertise in C/C++, high-performance computing, MPI, GPU/CUDA programming, and Linux/Unix environments.

Senior Software Engineer to lead R&D of next-generation sensor and compute technology for robotic systems. You will design and develop full-stack embedded software including device drivers and applications for AI on edge computing, architect system designs and specifications, and partner with hardware, software, and operations teams.…See more Requires 6+ years embedded software development, 5+ years C/C++ proficiency, 5+ years system architecture and design leadership experience, and hands-on experience with cameras, time-of-flight, Radar, and Lidar sensors.

Senior Software Engineer role developing reliable, modular, and secure software components for mission-critical federal government systems. Responsibilities include designing and building custom C++ and X Windows applications, web-based middleware, and security-accredited software on RHEL platforms.…See more Requires proficiency in JavaScript, React, CSS3, HTML5, and low-level operating systems concepts including multi-threading, memory management, and networking. Must maintain an active Secret Clearance and be eligible for Top Secret clearance.

Senior Software Engineer role developing reliable, modular, and secure software components for federal government systems. Responsibilities include designing and building C++ applications and web-based middleware on RHEL, front-end development with React/JavaScript/HTML5/CSS3, and writing security accreditation policies.…See more Requires 7–9 years of software engineering experience, active Secret clearance at hire, and ability to obtain Top Secret clearance.

Senior Software Engineer role focused on designing, developing, and deploying scalable web applications on AWS cloud infrastructure. Responsibilities include writing comprehensive tests, troubleshooting production issues, breaking down epics into technical tasks, and exploring AI integrations for code quality and deployment processes.…See more Requires 4+ years of web application development and cloud deployment experience with proficiency in Python, Java, or React.js, plus mentoring capabilities.

Execute on the design and delivery of Agentic AI systems for hardware design applications. Identify and enable impactful technical directions for Generative AI, develop foundational models, and collaborate with cross-functional teams to deliver ML/AI product solutions.…See more Requires a PhD in Computer Science or Electrical Engineering, at least 2 years of industry experience in Machine Learning/GenAI and MLOps, and hands-on expertise with Agentic AI tools and frameworks.

Design and deliver agentic AI solutions for hardware design applications. You will identify impactful research directions for generative AI, contribute to foundation model development, and collaborate across cross-functional teams to translate ML/AI concepts into deployed products.…See more This role requires a PhD in Computer Science or related field, 2+ years of ML/GenAI and MLOps industry experience, and hands-on expertise with agentic AI frameworks and deployment pipelines.

Develop and maintain a low-latency trading platform for an ML-driven quantitative hedge fund transitioning to proprietary operations. Responsibilities include managing infrastructure for data feeds and trade execution, writing performance-critical multithreaded code, and contributing to system design decisions.…See more The role requires proficiency in Python and exposure to C++, Rust, or C#, with a focus on high-availability systems meeting 99.999% uptime requirements.

This role focuses on building and maintaining the infrastructure, build systems, and operational foundations that enable development teams to deploy software reliably and securely. You'll engineer CI/CD pipelines, implement monitoring and observability, automate operational tasks, and provide production support across cloud environments.…See more The position requires software development fundamentals and prefers hands-on experience with systems administration, scripting for automation, and cloud platforms like AWS or Azure.

Lead UX strategy and design for multiple platform types, creating responsive and adaptive user experiences across varying form factors. Develop interactive prototypes using industry-standard design tools, provide guidance to developers and testers, and manage concurrent UX research, design, and engineering processes.…See more Requires 5+ years of mobile product UX delivery experience and proficiency with tools like Sketch, Pixate, and Adobe Creative Suite.

Design, implement, and optimize C/C++ applications for real-time signal processing in embedded systems, including porting algorithms to multi-core environments and developing hardware-in-the-loop tests. The role requires 4+ years of embedded C/C++ development experience, strong understanding of signal processing and linear algebra, and familiarity with hardware-software interaction and computer architecture.…See more You'll work within multi-disciplinary teams on advanced systems, optimize code for DSP applications and parallel processing, and communicate technical details to internal and external engineers.

Design UX strategies and responsive solutions for multiple platform types, leading the design and execution of user experience frameworks and information architectures. Develop interactive prototypes using industry-standard tools like Sketch and Adobe Creative Suite, provide guidance to developers and engineers, and manage multiple simultaneous UX research and design processes.…See more Requires 5+ years of experience delivering UX for mobile products and a BA/BS in Design, HCI, Computer Science, or Engineering.

Lead software testing for web applications and instrument systems, designing and executing both automated and manual test strategies with a focus on C# and TypeScript solutions. Build verification frameworks, integrate test suites into CI/CD pipelines using GitHub Actions, TeamCity, or Jenkins, and partner with developers to define test coverage.…See more Own quality metrics, identify risks, mentor junior engineers, and optimize automation solutions across assigned projects.

Senior Software Engineer role focused on fraud rules engine development and platform modernization. You'll write and improve fraud detection rules, drive implementation best practices, and utilize Java, Python, or Go for platform enhancements.…See more The role includes managing large-scale migrations, applying AI/LLM technologies to fraud detection, and working with relational and NoSQL databases in a loosely coupled, stateless architecture.

Own CI, build, and release infrastructure for AI software products (ONNX Runtime, ExecuTorch, TFLite/LiteRT delegates) across Linux, Windows, and Android. Design and evolve multi-platform CI pipelines, implement HIL and on-device automated testing for Snapdragon SoC validation, and drive end-to-end release pipelines with versioning, artifact packaging, and distribution.…See more Define automated quality gates including regression benchmarks and performance thresholds. Requires 8+ years of software/DevOps/release engineering experience (or 6+ with a Master's), expert Python and Bash scripting, deep CI/CD platform expertise (Jenkins, GitLab CI, GitHub Actions, TeamCity), and hands-on experience integrating AI coding agents into workflows.

Conduct cutting-edge research in efficient generative AI, including LLMs, multi-modal foundation models, LLM reasoning, reinforcement learning, and agentic AI. Lead high-impact research initiatives and develop production-ready solutions with real-world commercial impact, with a focus on on-device deployment challenges.…See more Implement and evaluate solutions in both simulation and on-device environments, and publish findings in top-tier AI/ML conferences. Requires a Master's degree and 2+ years of experience (or PhD), with proven research excellence, deep expertise in generative AI and reinforcement learning, and hands-on experience with model development pipelines including training, fine-tuning, evaluation, and optimization.

Senior Software Engineer with 10+ years of experience to develop advanced algorithms and software applications using C++, Python, MATLAB, and TensorFlow in Linux environments. The role involves designing object-oriented software, prototyping AI/ML solutions, utilizing DevOps tools (GitLab, Docker, Podman), troubleshooting complex systems, and providing technical leadership to customers and internal teams.…See more Strong mathematical foundation in probability, statistics, estimation theory, and machine learning is required to support algorithm development in a defense technology context.

Design, develop, customize, and maintain websites built on the .NET framework in an AWS cloud environment. Gather requirements from users, write unit and integration tests, troubleshoot system-level issues independently, and create technical documentation.…See more Requires 3+ years of web development experience with .NET, C#, JavaScript, WebAPI.NET, HTML, CSS, GitHub, IIS, SQL/MySQL, and AWS services including Glue Jobs and S3.