About Us Butlr is on a mission to make the built environment people-aware. We live and work in houses and buildings that aren't aware of their inhabitants. We heat and cool spaces when no one is in them, clean areas that haven't been used, and lease office space that no one is using. Our vision is to enable smarter buildings and increase the quality of life while respecting privacy. Spun out of the MIT Media Lab in 2019 with offices in Silicon Valley and Boston, Butlr was founded by Forbes 30 Under 30 entrepreneurs Honghao Deng and Jiani Zeng. Butlr pioneers in space occupancy and people sensing technologies and delivers rich spatial intelligence for workplace, retail, and healthcare use cases. We help customers revolutionize the way they operate in human-centric environments, ensuring efficiency and productivity at every step. We are backed by top venture capital institutions and strategic investors such as Foundry Group, Tiger Global, Qualcomm Ventures, E14 Fund, and Carrier, among others. We are recognized as one of Fast Company's "2024 Most Innovative Companies", Inc. Magazine's "2023 Best in Business'' (AI & Data Category), World Economic Forum's Top Innovator in YES San Francisco Challenge, among other awards/recognitions. We operate with top occupiers, landlords, care facilities, and service providers in North America, Europe, and Asia. We pride ourselves in providing exceptional solutions and service to numerous prestigious customers, tech giants, and world's largest conglomerates and brands. About the Role: We’re seeking an experienced Firmware/Embedded Engineer to develop, optimize, and maintain embedded Linux–based gateway systems for IoT and edge applications. The role involves end-to-end firmware design, connectivity, security, and integration with cloud services. Preferred Experience: Strong C/C++/Python skills in embedded Linux environments. Hands-on experience with Yocto, BSPs, and networking stacks. Familiarity with OTA updates, secure boot, and cloud-IoT integration. 5-10+ years related experience Responsibilities: Embedded Linux Platform Build and customize Linux OS images (Yocto or Debian-based). Integrate kernel modules, device drivers, and BSPs. Optimize boot time, memory, and power usage for embedded devices. Connectivity & Networking Implement and manage Ethernet, Wi-Fi, LTE/4G, and PoE networking. Configure DHCP, DNS, MQTT, HTTP/HTTPS, NAT, and firewall rules. Ensure stable and secure connectivity with automatic recovery (99% uptime target). System Software & Middleware Develop C/C++/Python services for data acquisition, buffering, and routing. Integrate edge ML models and cloud middleware (AWS, MQTT, REST APIs). Manage local storage, caching, and retry logic for intermittent networks. Security & Reliability Implement secure boot, signed firmware, and integrity checks. Manage certificates, keys, and access control. Support OTA firmware updates with rollback protection. Monitoring & Diagnostics Design system health telemetry (CPU, memory, connectivity, temperature). Create watchdogs, auto-recovery scripts, and remote logging/debugging (jFrog, syslog). Support remote firmware updates and diagnostics. Testing & CI/CD Develop and automate unit/integration tests. Collaborate with QA on test execution and system validation. Hardware Integration Bring up and test peripherals (Wi-Fi, LTE, USB, GPIO). Integrate and test Linux drivers (Qualcomm and custom). Validate sensor and RF interfaces. Performance Optimization Profile CPU, memory, and I/O performance. Tune kernel and network parameters for reliability and throughput. Optimize flash storage and file system usage. Cloud & Edge Integration Develop clients for MQTT, HTTPS, and WebSockets. Handle device provisioning and cloud connectivity (AWS IoT Core, Azure). Support remote configuration and edge analytics modules. Collaboration & Documentation Work cross-functionally with hardware, QA, and cloud teams. Participate in code/architecture reviews. Document system architecture and deployment guides Rate: $100 - $120 / per hour.  40 hours per week. Location: Remote / US Why working at Butlr is great! We are building a culture that puts people first! We’re a team of engaging, motivated, and intelligent problem-solvers who are committed to making an impact. We believe in fostering a culture of healthy work-life balance, and we encourage an inviting, collaborative, fun work environment. Butlr is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We encourage applicants of all backgrounds to apply! Disclaimers Butlr provides equal employment opportunities to all employees and applicants for employment and 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. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Please note this job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee for this job. Duties, responsibilities and activities may change at any time with or without notice.

Company Overview Nitricity is a startup addressing climate change, and we are looking for your help! We are innovating in an essential chemical industry that supports global food systems. The bedrock of modern agriculture is the production, distribution, and application of the essential nutrients found in fertilizers. However, nitrogen fertilizer is currently made in coal- and gas-fired facilities located hundreds to thousands of miles away from farmers who need it. The $120B industry is responsible for as much as 6% of global CO2eq emissions. Nitricity Inc. has developed a new technology that produces fertilizer using air, water, and renewable electricity (e.g., solar). Growers will have access to a more reliable, low-cost, and environmentally friendly fertilizer supply. We are actively growing our team to help us turn this vision into a reality. Position Description The Senior Process Engineer will be part of Nitricity’s core product engineering team to develop Nitricity’s breakthrough renewable fertilizer production prototype systems into megawatt-scale chemical production facilities. This will entail working with a team of experts in chemical, mechanical, and electrical engineering to build a system and optimize a process that will revolutionize fertilizer. The Senior Process Engineer will report to Nitricity’s VP of Engineering and apply their engineering expertise to solve engineering roadblocks and accelerate development toward the commercial product. Responsibilities Design, configure, and optimize Nitricity’s industrial chemical fertilizer processes from inception through to start-up and certification. Work with Nitricity-affiliated contractors and engineering firms to accelerate product and subsystem development. Assess, design, run, test, and upgrade systems and processes. This will include assessment of work by third-party contractors and engineering firms. Develop best practices, routines, and innovative solutions to improve production rates and quality of output. Provide process documentation, technical specifications, and operating instructions. Perform process simulations, risk assessments, and manage cost and time constraints. Select equipment, components and instruments for systems. Work to ensure the timely scale-up of system processes. Train other process engineers in industrial process engineering. Develop the operating processes, procedures, and parameters for the chemical plant Nitricity is designing. Develop all required documentation for operations, safety, and chemical management. Create and maintain Mass and Energy balance for production processes. Create and maintain P&IDs for production processes. Create and maintain Process Flow Diagrams for production processes. Create and maintain Design Basis for production equipment and facilities. Create and maintain a Control Philosophy for production processes. Work with the controls team to develop the controls programming needed to run the plant. Lead HAZOP reviews and implement best-practice solutions. Work with the engineering and operations teams to achieve the needed processes. Required Qualifications Benefits $135,000/yr - $155,000/yr Medical and dental insurance 3 weeks paid time off 7 company holidays and 4 floating holidays Competitive salary and equity package 401(k) plan Commuter Benefits

• Responsible for application onboarding for multiple projects within IAM space • Responsible for requirements from various stakeholders and also able to manage stakeholders’ expectations • Must be able to perform data analysis. • Document functional and non-functional requirements • Work with other team members to prioritize and manage the backlog • Work with the application teams and technical team to review the requirements • Document test cases and test scenarios and work with the application teams to co-ordinate UAT testing • Maintain and provide timely status reporting to the leadership • Identify process gaps and create process improvement documents and communicate the same to the application teams • Work with the EIS communications team to draft communications and to also lay out the communication plan and schedule • Lead and participate in meetings and provide guidance and expertise in support of strategic company initiatives • Gain a deep understanding of user experience and interactions with the products supported to identify and fill solution gaps to improve user experience • Must be able to engage with infrastructure professionals, pose intelligent and probing questions, plan, perform and manage security administration, provide accurate and detailed information, and quickly learn key concepts of how a technology operates including its control strengths and weaknesses.

• Analyze and research VSAM file structures and COBOL program behavior to support system enhancements and troubleshooting • Investigate data flows and application logic across mainframe components • Support and maintain JCL as needed for batch processing and job execution • Build, verify, and deploy Java artifacts packaged as TAR files as part of release activities • Partner with development and operations teams to support build and deployment processes • Assist with production issue analysis and resolution • Document system behavior, integration points, and release procedures • Collaborate with cross-functional teams to support ongoing modernization and system stability