Senior Software Engineer (Node.js)

Blockstream, established in 2014 by Dr. Adam Back and a dedicated team of cryptographers and engineers, is at the forefront of Bitcoin innovation. We are committed to revolutionizing the financial landscape through Bitcoin and are recognized as the leading Bitcoin company, offering state-of-the-art infrastructure solutions for enterprises, institutions, and individual users. Our offerings include advanced Bitcoin self-custody solutions, Bitcoin financial products, second-layer scaling technologies, and robust blockchain infrastructure.We are in search of a Platform Architect to architect and enhance the foundational structures of our core platforms. This pivotal role encompasses comprehensive system design, guaranteeing scalability, reliability, security, and developer efficiency throughout Blockstream’s infrastructure and product suite.In collaboration with engineering, security, product teams, and leadership, you will design distributed systems that facilitate high-value financial applications while adhering to Bitcoin’s fundamental principles of decentralization and trust minimization.

Mainspring Energy develops the Mainspring Linear Generator, a flexible power generation technology used by commercial, industrial, and utility customers. The generator adapts to changing demands, operates with multiple fuel types, and uses a flameless process that produces near-zero NOx emissions. Customers rely on Mainspring’s solutions for applications such as EV charging, commercial buildings, data centers, and grid-scale power. The company is backed by investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst. With a focus on affordable, reliable, and net-zero carbon energy, Mainspring is expanding in the $816B global electricity equipment market. The team values a mix of backgrounds and skills, aiming to foster innovation and new ideas. Principles guiding the company include pragmatic optimism, excellence without ego, and proactive collaboration. More details about the company are available at www.mainspringenergy.com. Role overview The Principal AI Architect will play a key role in advancing Mainspring Energy’s use of artificial intelligence. This position focuses on moving beyond basic productivity tools to fully integrating AI agents into engineering development. The role holds strategic responsibility for shaping the architectural direction of the company’s linear generator technology through the effective use of AI. What you will do Lead the transition to AI-driven engineering processes, ensuring AI agents become a core part of product development. Define and communicate the architectural vision for integrating AI with Mainspring’s linear generator technology. Collaborate with engineering and leadership teams to implement advanced AI solutions that support company goals. Values and culture Pragmatic Optimism: Pursue innovation while solving problems with practical approaches. Excellence without Ego: Deliver outstanding results and customer experiences with humility. Proactive Collaboration: Engage intentionally with colleagues from diverse backgrounds and perspectives.

Mainspring Energy seeks a Principal Cloud Platform Software Engineer based in Menlo Park, CA. The role centers on building and refining cloud-based platforms that power the company's products and services. Key responsibilities Design, develop, and improve core components of the cloud platform Collaborate with engineering, product, and operations teams on technical solutions Create and deliver systems that prioritize scalability and security within the cloud infrastructure Collaboration Frequent teamwork with colleagues from various backgrounds is essential. The goal is to ensure the platform aligns with both business objectives and technical requirements.

Mainspring Energy creates the Mainspring Linear Generator, a power generation solution designed for commercial, industrial, and utility applications. These generators provide local power for uses like EV charging, commercial buildings, data centers, and large-scale grid projects. The Linear Generator operates with a flameless reaction, resulting in nearly zero NOx emissions and compatibility with various fuels. The company is supported by investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst. Mainspring designs, manufactures, and delivers its products across the United States and is preparing for international expansion. The team aims to build a reliable, affordable, and net-zero carbon grid, and is growing quickly within the global electricity equipment market. Mainspring values diverse backgrounds and believes they foster innovation. Core Values Pragmatic Optimism: Combining creativity with practical solutions, the team sees challenges as opportunities for growth. Excellence without Ego: Focused on delivering strong customer experiences, employees apply technical skill with humility and teamwork. Proactive Collaboration: Success depends on engaging with people from different backgrounds and perspectives, building a respectful and inclusive culture. Role overview The Staff Cloud Platform Software Engineer will lead the architecture for Mainspring’s cloud-to-field software systems. This platform enables monitoring, control, and optimization of distributed energy assets for commercial, industrial, and utility clients. The role is central to developing and maintaining the systems that support reliable on-site power delivery through the Linear Generator platform. Location This position is based in Menlo Park, CA.

Join Prophet Security as a Software Engineering Manager for our Platform Team!At Prophet Security, we are revolutionizing the security operations landscape with our AI-powered platform that enhances detection, investigation, and response capabilities. Our mission is to empower security teams to operate without the limitations of overwhelming alert volumes or disjointed tools. As part of our growing team, you will collaborate with industry veterans from leading companies like Abnormal Security, Expel, Mandiant, and McAfee to shape our innovative solutions and enhance customer success.Your Role and ImpactThe Platform Team is critical to ensuring our security operations platform functions reliably and efficiently at scale. You will be responsible for:Integrations: Developing and maintaining effective connectors for seamless and dependable ingestion of security data from various sources, including SIEM, EDR, cloud platforms, and SaaS applications.Observability & Monitoring: Implementing comprehensive telemetry, logging, and alerting systems to achieve over 99.9% uptime and facilitate swift incident responses.Developer Productivity: Creating CI/CD pipelines, testing frameworks, and development tools to enhance the overall efficiency of our engineering organization.Deployment Infrastructure: Designing and managing secure deployment systems that ensure compliance across diverse customer environments.As the Engineering Manager for the Platform Team, you will define and oversee the technical roadmap, balancing immediate customer needs with a vision for architectural excellence. Your contributions will significantly influence every customer interaction with Prophet Security, enabling our engineering team to work more effectively and scalable.Your ResponsibilitiesThis role is a hands-on engineering management position, where you will dedicate 25% of your time to direct technical contributions while leading your team.Build and nurture a high-performing team of Platform engineers, focusing on hiring top talent that aligns with our culture.Maintain technical credibility by staying engaged with our codebase, ready to troubleshoot issues, enhance monitoring, or deploy new features as necessary.Provide mentorship and guidance through regular one-on-one meetings, establishing clear pathways for career development and growth opportunities for each team member.Continuously evaluate and refine team processes to drive efficiency and innovation.