Senior Software Engineer, Modeling & Simulation

Join us in transforming how the Department of Defense approaches multi-billion-dollar force design decisions. In this pivotal role, you will integrate physics-driven simulations, interactive computing, and verified AI code-generation to develop cutting-edge wargaming platforms. We are looking for a seasoned software engineer who can take ownership of critical components within a scalable, cloud-distributed simulation environment, while inspiring and leading a dedicated team.Your Responsibilities Create and implement a robust, interactive physics simulation that operates flawlessly across cloud and on-premises clusters. Manage core functionalities in modern C++, focusing on multi-threaded performance tuning and continuous integration. Collaborate with product and AI teams to integrate verified AI-generated algorithms into a developer SDK that enhances the platform. Rapid prototyping and iteration: deliver functional capabilities to government end-users in weeks, not months. Set high engineering standards: produce clean code, maintain rigorous documentation, and mentor team members through code reviews and pair programming. Why Choose Code Metal? Impactful Mission: Your contributions will shape digital battlefield models that directly affect real-world acquisition strategies. Agility: Work within small teams, experience rapid iteration cycles, and have the authority to deliver solutions. Ownership: Everyone is a contributor—no passengers, everyone pushes code to production.

Join us in transforming how the Department of Defense (DoD) approaches multi-billion-dollar force design decisions. As a Senior Principal Software Engineer, you will integrate physics-based simulations, dynamic computing, and validated AI code generation to develop state-of-the-art wargaming platforms. We are looking for a proactive leader who can architect and develop a scalable, cloud-distributed simulation environment while motivating a small, dedicated team through hands-on leadership.Your ResponsibilitiesDesign & Implement: Create a robust, interactive physics simulation that operates efficiently across cloud and on-premises clusters.Own the Core Codebase: Manage the modern C++ codebase, focusing on multi-threaded performance optimization and continuous integration practices.Collaborate: Work closely with product and AI teams to incorporate verified, AI-generated algorithms directly into a developer SDK for platform enhancement.Prototype & Iterate: Deliver functional capabilities to government end-users in weeks, not months, through rapid prototyping.Set Engineering Standards: Uphold high coding standards, document processes thoroughly, and mentor team members through code reviews and pair programming.

FieldAI is revolutionizing the interaction between robots and the physical world. Our expanding Research and Development team, located in Boston, is dedicated to creating risk-aware, reliable AI systems that address complex challenges in robotics and harness the full potential of embodied intelligence. We adopt a practical approach that transcends conventional data-driven methods or transformer-only architectures, merging pioneering research with real-world applications. Our solutions are already in use worldwide, and we enhance model performance through rapid iterations informed by actual field experiences.We are looking for enthusiastic engineers to contribute significantly to the advancement of multi-robot simulation and fleet orchestration. In this dynamic environment, you will collaborate with a dedicated team to develop simulation environments where robots can operate, coordinate, and adapt within realistic scenarios. This initiative will enable us to design and validate fleet orchestration strategies at scale prior to deployment. The ideal candidate will possess a robust understanding of robotics simulation and multiagent principles, coupled with the practical skills necessary to produce high-quality, maintainable code within a small, focused team.

About You: We are on the lookout for a seasoned Senior Software Engineer to lead the design, implementation, testing, and certification of flight-critical autonomy algorithms for cutting-edge aerospace systems. In this pivotal role, you will harness MathWorks tools to develop model-based flight software and oversee the complete lifecycle of DO-178C compliant development.

Mission: We are in search of a talented and driven Senior Data Engineering Analyst to join our innovative team focused on large-scale AI model evaluation through our platform, Ground Truth Regression. The ideal candidate will possess a solid foundation in data engineering, machine learning principles, and statistical analysis. At Motional, the orchestration of extensive data analysis is crucial for advancing our machine learning-driven autonomous driving technology. Our robo-taxi ML models and software are developed by a dedicated team of engineers and deployed multiple times daily. The Ground Truth Regression team is responsible for providing a comprehensive perception analysis framework to validate any changes that could influence the behavior of autonomous vehicles. The Ground Truth Regression team assesses the cumulative effects of ML and software modifications during the development phase, equipping the team with tools for root cause analysis and safety evaluations. We meticulously monitor model errors, anomalies, and rare occurrences across extensive driving scenarios, gathering insights over thousands of driving hours. The team is responsible for developing the full-stack infrastructure, including AWS Kubernetes orchestration, re-simulation, model metrics, regression reports, and deep-dive analytical tools. Collaboration with other perception and ML teams is integral for establishing metrics and analyzing outcomes. What You’ll Do: Collaborate with ML Engineers and Autonomy Software Developers to create new data analysis metrics and KPIs for validating autonomous vehicle performance. Pursue innovation by researching and developing new large-scale data analysis frameworks. Lead large-scale data analysis workflows to identify unexpected impacts of both planned and unplanned modifications to ML models and software. Construct high-quality datasets to enhance ML product performance through training and edge case validation. Deliver in-depth statistical insights on model performance and generalization through thorough error and change analysis. What We’re Looking For: Bachelor's or Master’s degree in Computer Science, Data Science, or a related field. Proficient programming skills in Python, SciPy, and related data analysis frameworks. Experience in machine learning, data mining, and statistical analysis. Familiarity with large-scale data processing and distributed computing technologies. Strong communication and software development skills, including goal setting, design documentation, testing frameworks, and collaborative team development.

Join OpenGov as a Senior Software Engineer and become part of a dynamic team dedicated to transforming how governments operate. In this role, you will lead the design and development of innovative software solutions that empower public sector organizations to enhance transparency and efficiency.

At Hi Marley, we understand that insurance plays a crucial role in people's lives during their most challenging times. Our mission is to revolutionize communication within the Property and Casualty (P&C) industry, making those pivotal moments quicker, simpler, and more empathetic for both carriers and their customers. We harness the power of AI-driven software to keep the claims conversation both informed and connected. If you share our vision of merging operational excellence and automation with a human touch, we’d be thrilled to connect with you.As we expand our team, we are seeking a Senior Software Engineer who is enthusiastic about crafting high-quality software that creates a tangible impact. You will be instrumental in delivering distributed and scalable systems that facilitate meaningful interactions between carriers and their clients. The ideal candidate should have a proven track record of developing within cloud environments and a pragmatic, hands-on approach to innovation—leveraging cutting-edge technologies, including AI-assisted development tools, to tackle complex challenges and yield significant results.Collaboration and shared enthusiasm are foundational to our culture, which is why this position entails being present in our Boston office two days a week.

Join our team as a Senior Software Engineer, where you'll play a pivotal role in developing innovative hiring solutions that empower organizations like Netflix, Shopify, and Spotify. We are dedicated to transforming the recruitment landscape and are seeking talented individuals to help us scale our impact.

A fulfilling career awaits you!At Conga, we foster a community where our team members can truly flourish. Here, you'll discover ample opportunities for innovation and personal growth, all within a collaborative environment that values every opinion.Conga propels businesses on their journey to becoming more interconnected and intelligent. Our Conga Advantage Platform is globally acknowledged for enhancing this journey by merging Configure, Price, Quote, Contract Lifecycle Management, and Document Automation into a unified, open platform. It integrates effortlessly with any ERP, CRM, and Cloud system. Leveraging a cohesive data model and tailored AI, Conga empowers organizations to achieve a distinctive advantage, characterized by seamless connectivity, actionable insights, and scalable growth.Our methodology is rooted in the Conga Way, a guiding framework that embodies our values and influences all aspects from hiring to decision-making processes, including key initiatives like employee recognition. Developed with direct contributions from our employees, the Conga Way is the cornerstone of our vibrant culture.

At Later, we redefine influencer marketing by harnessing the power of genuine creator relationships and cutting-edge technology. Our AI-driven platform, backed by over a decade of proprietary data—including billions of social interactions and more than $2.4 billion in verified influencer-driven purchases—provides brands the confidence to craft unforgettable campaigns. With our expert guidance, brands can navigate the complexities of influencer marketing to maximize their impact on awareness, engagement, and revenue. Trusted by industry leaders like Nike, Wayfair, Unilever, and Southwest Airlines, Later seamlessly blends creativity with performance to ensure that every campaign not only looks exceptional but also delivers tangible results. Discover more at later.com.About the role:The Senior Software Engineer will play a pivotal role in driving significant projects, implementing impactful features, and upholding our high engineering standards. You will tackle complex challenges, collaborate across various teams, and mentor junior engineers while continually enhancing our codebases and promoting a culture of technical excellence. With profound expertise in contemporary software development and Agile methodologies, you'll influence product velocity and engineering culture.Your Responsibilities:Strategic LeadershipDefine, plan, and lead the delivery of extensive features and roadmap initiatives.Clarify and refine requirements among stakeholders in a dynamic environment.Navigate ambiguous requirements and divergent interests to deliver features that excite users.Contribute to long-term architectural planning and system design.Technical ExecutionLead the resolution of complex technical challenges across teams and production environments.Continuously improve code quality, system performance, and engineering practices.

Join Klaviyo as a Senior Software Engineer focused on Growth, where you'll play a pivotal role in enhancing our platform's capabilities. You will work closely with cross-functional teams to design, develop, and implement innovative solutions that drive user engagement and expand our customer base. This is an exciting opportunity to leverage your technical expertise in a dynamic environment.

Senior/Staff Software Engineer, Applications AcuityMD is an innovative software and data platform that accelerates the accessibility of medical technologies. We empower MedTech companies to gain insights into product usage, understand customer variations, and pinpoint opportunities that enable physicians to enhance patient care. Annually, the FDA approves approximately 6,000 new medical devices, and our solution streamlines the process of getting these products into the hands of physicians, ultimately improving patient outcomes. Supported by prominent investors like Benchmark, Redpoint, ICONIQ Growth, and Ajax Health, we are a rapidly expanding SaaS company. We are seeking a talented Senior/Staff Engineer to join our dynamic Customer Intelligence Team. This role offers the chance to engage in all facets of current and future product development. Collaborate with other passionate engineers on challenging projects that introduce cutting-edge technologies to patients. Team Mission Within the Application Team, our goal extends beyond engineering software; we are transforming how medical technologies are delivered to those in need. The Customer Intelligence Team empowers MedTech companies to expedite the adoption of state-of-the-art medical technology by optimizing their sales processes through seamless and context-rich workflows. Assist our clients in strategizing their sales efforts to both existing and prospective users by integrating market data and AI-driven recommendations into their daily operations. We collaborate with top-tier MedTech companies and are on a journey of rapid feature development to guarantee their success. Your contributions will be pivotal in delivering impactful, high-quality, and scalable solutions that truly matter. You will collaborate with Product Managers, Designers, and fellow Engineers to build comprehensive features across both web and mobile platforms. We prioritize delivering excellent work while fostering a fun, collaborative, and supportive team environment, as we believe strong relationships enhance our collective performance! Advance your career while working on meaningful projects across various tech stacks, including JavaScript, React, TypeScript, GraphQL, Node.js, Python, and SQL.

Urban Compass is looking for a Senior Software Engineer II in Boston to help shape and build the next generation of its platform. This position centers on designing and implementing new software features that drive both technical progress and a strong user experience. Role overview As a Senior Software Engineer II, the work involves collaborating with colleagues from different teams to deliver solutions that improve the platform. The focus is on both technical quality and usability, keeping the product aligned with current technology trends. Key responsibilities Design and implement software features and improvements Work closely with cross-functional teams to deliver high-quality solutions Contribute to maintaining a modern, user-focused platform Location This role is based in Boston.

Role Overview Alarm.com is seeking a Senior Software Engineering Manager in Boston, Massachusetts. This leader will guide a skilled team focused on building software solutions that support and empower customers. The position involves managing software development projects, tracking progress, and upholding strong quality standards throughout the process. Key Responsibilities Oversee end-to-end software development projects, from planning through delivery Ensure projects meet timelines and quality expectations Work closely with cross-functional teams to support technical goals Promote a culture of continuous improvement and technical growth

Veeva Systems Inc. is a purpose-driven leader in the industry cloud sector, dedicated to accelerating the journey of life sciences companies in delivering therapies to patients more swiftly. As one of the fastest-growing SaaS enterprises in history, we achieved over $2 billion in revenue last fiscal year, with promising growth prospects ahead.At the core of Veeva's culture are our values: Integrity, Customer Success, Employee Empowerment, and Agility. We are not just another public company; we made history in 2021 by becoming a Public Benefit Corporation (PBC), legally committed to balancing the interests of customers, employees, society, and investors.As a Work Anywhere organization, we offer the flexibility to work from home or the office, allowing you to thrive in your preferred environment.Join us in transforming the life sciences sector, as we strive to create a positive impact on our customers, employees, and communities.The RoleWe are seeking multiple Senior Sustaining Software Engineers who are enthusiastic about working in a dynamic, startup-like atmosphere within a stable and profitable company. Our team tackles intricate challenges that influence the efficiency and speed of the life sciences industry. In this role, you will dive right in, identifying and resolving issues related to our Vault CRM product.

Mission Overview: We are seeking a highly skilled Senior Software Engineer to spearhead the development and execution of automated workflows, advanced tooling, and insightful analytics that will empower our autonomy stack to achieve unparalleled scalability. Your expertise will be crucial in transforming vast datasets into actionable engineering insights, ensuring that our software releases are resilient, thoroughly validated, and prepared for real-world deployment. Key Responsibilities: Design Intelligent Tooling: Lead the design and implementation of sophisticated automation systems aimed at categorizing and elucidating complex system behaviors using advanced data modeling techniques to expedite solution delivery. Drive Analytical Initiatives: Take charge of developing impactful performance visualization tools that convert raw metrics into clear, actionable insights related to on-road performance. Enhance Release Engineering: Leverage your experience to refine our release processes, steering the team towards a highly automated deployment framework that upholds quality while boosting efficiency. Advance Simulation Techniques: Play a pivotal role in enhancing our virtual testing environments, ensuring our simulation suites deliver the high-fidelity feedback necessary to accurately interpret releases. Collaborate Across Disciplines: Engage within a large, multi-disciplinary codebase to facilitate seamless integration between planning, motion, and control teams. Qualifications: Substantial experience in building production-grade applications, tools, and pipelines using Python. Proficient in navigating and contributing to large, complex codebases where modularity and thorough documentation are essential. Demonstrated success in delivering software in a production environment, with familiarity in CI/CD practices, version control at scale, and rigorous release cycles. Strong curiosity about data, with the capability to extract meaningful patterns from complex, high-dimensional datasets. A deep passion for a driverless future, with an understanding of the critical nature of deploying software that interacts with the physical environment. Bonus Qualifications (not mandatory): Experience with C++ in a Linux environment. Familiarity with Machine Learning frameworks or Large Language Model (LLM) integration. A background in robotics middleware (ROS, DDS) or autonomous systems.

Urban Compass is looking for a Senior Software Engineer II in Boston. This position centers on building software that improves both user experience and operational processes in the real estate sector. Role overview As a Senior Software Engineer II, the work involves designing and developing new features and tools for Urban Compass’s platform. The team values practical solutions that make real estate transactions smoother and more efficient for users. What you will do Create and maintain software that supports the company’s mission in real estate technology. Work alongside other engineers to deliver features that improve usability and efficiency. Apply technical expertise to solve complex problems and contribute to ongoing projects. Requirements Experience in software engineering at a senior level. Ability to design and implement solutions that enhance user experience and operational workflows.

Join Recorded Future as a Senior Software Engineer, where you will play a pivotal role in developing innovative software solutions that enhance our threat intelligence platform. Your expertise will help shape the future of cybersecurity, as you collaborate with a dynamic team of engineers to design, build, and maintain scalable systems.

Join Klaviyo as a Senior Software Engineer specializing in Channel Processing, where you will play a pivotal role in enhancing our data processing capabilities. In this position, you will work closely with cross-functional teams to design, develop, and implement robust software solutions that improve our channel processing infrastructure. This is an exciting opportunity to contribute to a rapidly growing company dedicated to empowering businesses through innovative technology.

Join Our Innovative TeamBe part of the Customer Experience (CX) Product team that oversees the complete post-booking journey. From the moment a trip is booked to handling changes, disruptions, refunds, and customer support interactions, we are dedicated to enhancing the travel experience.We develop and maintain systems that provide rapid, high-quality support at scale, including:User-friendly self-service experiences within the Hopper app and partner-integrated systems.Robust internal agent platforms that facilitate efficient, high-quality human resolution.HTS Assist, our premier agentic AI platform, utilized internally and as a B2B solution for global travel partners.Our platforms serve millions of travelers across various channels—chat, voice, web, and third-party—ensuring seamless post-booking experiences worldwide.Your RoleAs a Senior Software Engineer in the CX Platform team, you will architect, build, and enhance the core systems that underpin Hopper’s post-booking experience. Your contributions will directly affect customers, internal support agents, and the growth of HTS Assist across AI-driven communication channels.You will work in close collaboration with Product, Design, AI, Data, and Operations teams to deliver intelligent, scalable customer service systems, including conversational AI workflows and self-service customer journeys.Daily ResponsibilitiesDesign, develop, and enhance backend and/or full-stack systems that support HTS Assist, internal agent tools, and customer self-service flows.Create scalable APIs, microservices, and orchestration logic for complex post-booking journeys across AI, chat, voice, and web.Collaborate with product, design, AI, and operations teams to implement features that optimize customer experiences and improve agent efficiency.Integrate with external systems such as telephony, CRM, identity, and booking platforms to support both internal and partner-specific applications.Own features from initial technical design through implementation, testing, deployment, monitoring, and iteration.