Critical Infrastructure Engineer Jobs

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Mission Manager is Palantir’s PaaS for enabling US Government customers and vendors to run software securely and compliantly in the most sensitive environments, but without the overhead — whether connected, disconnected, cloud, or edge. Built on the strength of Palantir’s Apollo platform, it provides the critical infrastructure needed to rapidly onboard and deploy applications into a secure Kubernetes-based ecosystem, freeing our customers to focus on building and powering mission-critical systems. The Mission Manager offering is still in its earliest days, and by joining us now, you’ll define the strategy for how we develop and scale it — witnessing firsthand the impact of your work on critical missions and the new capabilities you unlock. You’ll drive this by building elegant, robust APIs powered by Kubernetes controllers, bridging the gap between a raw Kubernetes cluster and a fully featured, infrastructure-agnostic runtime that can meet the operational demands of hundreds of specialized microservices. You’ll undertake this challenge alongside an energized team with a wide array of backgrounds and skillsets, all united by an ambitious vision for what’s possible. Core Responsibilities Work closely with forward deployed and customer engineers to understand product gaps and identify both short- and long-term product improvements and fixes Engage with and internalize Palantir’s infrastructure strategy and the needs of our customer stakeholders Deeply understand and leverage K8s primitives, the broader OSS ecosystem around K8s, and highly technical service lifecycle semantics to solve business critical problems at scale Build

Why Harvey At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you. At Harvey, the future of professional services is being written today — and we’re just getting started. Role Overview As a Staff Frontend Software Engineer at Harvey, you’ll play a pivotal role in shaping the foundation of our product platform while directly building user-facing features for some of the world’s leading law firms and enterprise customers. This team owns and operates the platform layer that enables secure, reliable, and flexible experiences for our customers including notifications, permissions and feature flag infrastructure. We also build enterprise-grade collaboration product experiences for law firms. You will design and own systems that not only serve as critical infrastructure for the rest of the company, but also directly impact how our users engage with Harvey’s AI-powered legal tools. This role is ideal for engineers who are excited by the opportunity to move b

Why Harvey At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. We have strong product-market fit and world-class investor support. We’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you. At Harvey, the future of professional services is being written today — and we’re just getting started. Role Overview As a Staff Backend Software Engineer at Harvey, you’ll play a pivotal role in shaping the foundation of our product platform while directly building user-facing features for some of the world’s leading law firms and enterprise customers. This team owns and operates the platform layer that enables secure, reliable, and flexible experiences for our customers including notifications, permissions and feature flag infrastructure. We also build enterprise-grade collaboration experiences for law firms. You will design and own systems that not only serve as critical infrastructure for the rest of the company, but also directly impact how our users engage with Harvey’s AI-powered legal tools. This role is ideal for engineers who are excited by the opportunity to move between de

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. ABOUT THE ROLE: The Data Platform team builds and operates the infrastructure responsible for all large-scale data transport and processing across the company. We own and manage core systems including Apache Kafka, HDFS, Spark, Flink, and Trino, enabling real-time ML pipelines, feed ranking, experimentation, analytics, and observability at petabyte scale. Our team deals with latency-critical workloads, high-throughput streaming, and distributed compute systems that require fault tolerance, performance, and absolute reliability. As a software engineer on the Data Platform team, you will design, build, and operate the distributed systems powering SpaceXSI's data movement and compute. You will take ownership of infrastructure components that process trillions of events daily, driving the scalability, performance, and reliability of the systems that power product and ML workloads across the company. RESPONSIBILITIES: Design and implement high-throughput, low-latency data ingestion and transport systems. Scale and optimize multi-tenant Kafka infrastructure supporting real-time workloads. Extend and tune Spark, Flink, and Trino for demanding production pipelines. Build interfaces, API

Technical Program Manager – Applied Infrastructure About the Team The Applied team safely brings OpenAI’s technology to the world, powering products like ChatGPT, and the APIs for GPT and more. Behind these products is a complex and rapidly evolving infrastructure platform that enables scale, performance, and safety. The Applied Infrastructure TPM team partners across engineering to lead foundational programs that ensure OpenAI’s infrastructure can meet current and future demand. About the Role We’re looking for a seasoned Technical Program Manager to drive critical infrastructure programs across the Applied organization. This TPM will focus on cross-cutting initiatives such as general compute capacity planning, process transformation, cost and quota attribution and optimization, and coordination across infrastructure and product stakeholders. There will also be focus on evolving OpenAI’s infrastructure to support growth, scale and new products. This work is core to how OpenAI manages and grows its infrastructure footprint in a disciplined, scalable way. Location: San Francisco, CA (Hybrid – 3 days/week in-office) In this role, you will: Serve as the DRI for complex infrastructure programs spanning CPU planning, orchestration, and other resource management domains (e.g. networking, storage). Build and operationalize systems to capture demand signals, model future capacity needs, and align infrastructure planning across internal teams and partners external to the company. Partner closely with Infrastructure, Product and Finance teams to forecast infrastructure usage patterns and ensure supply/demand alignment. Lead cost attribution and quota enforcement programs to promote stability and ensure equitable access to resources across teams. Drive simplification and standardization of infrastructure tooling and processes across Applied and Infra organizations. Drive cross functional programs to evolve our infrastructure to support new growth and scale Work with external v

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Mission Manager is Palantir’s PaaS for enabling US Government customers and vendors to run software securely and compliantly in the most sensitive environments, but without the overhead — whether connected, disconnected, cloud, or edge. Built on the strength of Palantir’s Apollo platform, it provides the critical infrastructure needed to rapidly onboard and deploy applications into a secure Kubernetes-based ecosystem, freeing our customers to focus on building and powering mission-critical systems. The Mission Manager offering is still in its earliest days, and by joining us now, you’ll define the strategy for how we develop and scale it — witnessing firsthand the impact of your work on critical missions and the new capabilities you unlock. You’ll drive this by building elegant, robust APIs powered by Kubernetes controllers, bridging the gap between a raw Kubernetes cluster and a fully featured, infrastructure-agnostic runtime that can meet the operational demands of hundreds of specialized microservices. You’ll undertake this challenge alongside an energized team with a wide array of backgrounds and skillsets, all united by an ambitious vision for what’s possible. Core Responsibilities Work closely with forward deployed and customer engineers to understand product gaps and identify both short- and long-term product improvements and fixes Engage with and internalize Palantir’s infrastructure strategy and the needs of our customer stakeholders Deeply understand and leverage K8s primitives, the broader OSS ecosystem around K8s, and highly technical service lifecycle semantics to solve business critical problems at scale Build

A World-Changing Company Palantir builds the world’s leading software for data-driven decisions and operations. By bringing the right data to the people who need it, our platforms empower our partners to develop lifesaving drugs, forecast supply chain disruptions, locate missing children, and more. The Role Mission Manager is Palantir’s PaaS for enabling US Government customers and vendors to run software securely and compliantly in the most sensitive environments, but without the overhead — whether connected, disconnected, cloud, or edge. Built on the strength of Palantir’s Apollo platform, it provides the critical infrastructure needed to rapidly onboard and deploy applications into a secure Kubernetes-based ecosystem, freeing our customers to focus on building and powering mission-critical systems. The Mission Manager offering is still in its earliest days, and by joining us now, you’ll define the strategy for how we develop and scale it — witnessing firsthand the impact of your work on critical missions and the new capabilities you unlock. You’ll drive this by building elegant, robust APIs powered by Kubernetes controllers, bridging the gap between a raw Kubernetes cluster and a fully featured, infrastructure-agnostic runtime that can meet the operational demands of hundreds of specialized microservices. You’ll undertake this challenge alongside an energized team with a wide array of backgrounds and skillsets, all united by an ambitious vision for what’s possible. Core Responsibilities Work closely with forward deployed and customer engineers to understand product gaps and identify both short- and long-term product improvements and fixes Engage with and internalize Palantir’s infrastructure strategy and the needs of our customer stakeholders Deeply understand and leverage K8s primitives, the broader OSS ecosystem around K8s, and highly technical service lifecycle semantics to solve business critical problems at scale Build

About the Team The Frontier Systems team at OpenAI builds, launches, and supports the largest supercomputers in the world that OpenAI uses for its most cutting edge model training. We take data center designs, turn them into real, working systems and build any software needed for running large-scale frontier model trainings. Our mission is to bring up, stabilize and keep these hyperscale supercomputers reliable and efficient during the training of the frontier models. About the Role As a Software Engineer on the Frontier Systems team focused on power management, you will work on critical infrastructure to support cutting-edge research. With large-scale supercomputers consuming substantial amounts of power, managing this efficiently is key to maximizing computational capacity. This role is critical to ensuring that our cutting-edge research supercomputing infrastructure runs smoothly, while maintaining reliability and grid-level power stability. Our team empowers strong engineers with a high degree of autonomy and ownership, as well as ability to effect change. This role will require a keen focus on system-level comprehensive investigations and the development of automated solutions. We want people who go deep on problems, investigate as thoroughly as possible, and build automation for detection and remediation at scale. In this role, you will: Develop and implement system-level and software-level solutions to optimize power usage in large-scale supercomputers, ensuring efficient and reliable operations. Build automation to monitor power consumption patterns during training workloads and design algorithms to stabilize these fluctuations, preventing issues with grid reliability. Work with researchers and engineers to design tools for real-time monitoring, detection, and remediation of power-related hardware and system faults. Collaborate cross-functionally to translate complex electrical system requirements into code, while driving continuous improvements in power man

Senior Site Reliability Engineer (SRE) / Managed Services Engineer Who We Are Horizon Trading Solutions is an independent global technology company focused on electronic trading, supporting agency and principal business goals across equities and derivatives. With over 20 years of experience, Horizon provides a powerful multi-asset trading platform with direct connectivity to more than 80 exchanges worldwide, enabling clients to deploy sophisticated trading strategies across global markets. As our Managed Services and SaaS activities continue to grow across APAC, we are looking for a Senior Site Reliability Engineer (SRE) to join our Hong Kong team and play a key role in delivering highly available, secure, and performant trading infrastructures for our clients. Role Overview The Senior SRE Engineer will be responsible for designing, deploying, operating, and continuously improving the infrastructure supporting Horizon's hosted and managed trading platforms. Working closely with Infrastructure, Development, Product, and Client Services teams, you will ensure the reliability, security, performance, and scalability of critical production environments deployed on premises, in colocation facilities, and in cloud environments. This is a hands-on engineering role suited to someone passionate about operational excellence, low-latency infrastructures, automation, and financial technology. Key Responsibilities Platform Reliability & Operations Ensure high availability and operational readiness of Horizon's managed trading platforms. Monitor, maintain, and optimize production environments through proactive health checks, performance tuning, upgrades, and preventive maintenance. Diagnose and resolve infrastructure, network, database, and application incidents to minimize service disruption and meet service level objectives. Respond proactively to infrastructure alerts and client issues, lead deep-dive root cause analyses, and drive continuous improvement initiatives to enha

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. About the Engineering team The Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems through exceptional engineering. About the role The Trust and Safety Foundations team within Checkout Engineering builds and operates foundational systems and data capabilities that support how Affirm understands consumer risk and meets its credit reporting obligations. Our work sits at the intersection of data quality, system reliability, regulatory requirements, and risk, creating critical infrastructure that Affirm and its partners depend on to operate accurately and at scale. As a Staff Software Engineer on Trust and Safety Foundations, you will help shape the team’s technical strategy and lead complex, business-critical initiatives across systems and stakeholders. You’ll turn ambiguous problems into clear technical approaches, guide projects from strategy through execution, and strengthen the reliability and sustainability of the systems we own. You’ll also act as a force multiplier by raising the bar for system design and engineering quality, sharing your expertise, and helping other engineers grow. This role requires strong technical judgment, deep ownership, and the ability to navigate complexity in a high-impact domain. . What you’ll do You will be responsible for setting technical strategy for your team on a year-long time scale, and help your team tie it together with critical, business-impacting projects. You will collaborate across teams in the product developm

At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. About the Engineering team The Engineering team builds systems that power Affirm’s mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we’re enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus is on solving complex problems through exceptional engineering. About the role The Trust and Safety Foundations team within Checkout Engineering builds and operates foundational systems and data capabilities that support how Affirm understands consumer risk and meets its credit reporting obligations. Our work sits at the intersection of data quality, system reliability, regulatory requirements, and risk, creating critical infrastructure that Affirm and its partners depend on to operate accurately and at scale. As a Staff Software Engineer on Trust and Safety Foundations, you will help shape the team’s technical strategy and lead complex, business-critical initiatives across systems and stakeholders. You’ll turn ambiguous problems into clear technical approaches, guide projects from strategy through execution, and strengthen the reliability and sustainability of the systems we own. You’ll also act as a force multiplier by raising the bar for system design and engineering quality, sharing your expertise, and helping other engineers grow. This role requires strong technical judgment, deep ownership, and the ability to navigate complexity in a high-impact domain. . What you’ll do You will be responsible for setting technical strategy for your team on a year-long time scale, and help your team tie it together with critical, business-impacting projects. You will collaborate across teams in the product developm

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team + role We are building an elite team, applying frontier technologies to the world's biggest financial problems. We're looking for bold thinkers. Sharp problem-solvers. Builders who are wired to make an impact. Robinhood isn't a place for complacency, it's where ambitious people do the best work of their careers. We're a high-performing, fast-moving team with ethics at the center of everything we do. Expectations are high, and so are the rewards. The Brokerage Infrastructure team owns our platform — Robinhood's tier zero, mission-critical service responsible for all order processing, account management, and platform availability during the moments that matter most. Our systems handle millions of transactions per second across high-volume market events, and our reliability is non-negotiable! We are a team of 10+ engineers, with a culture of deep ownership, engineering rigor, and relentless focus on correctness and scale. We're looking for a Staff Level Engineer to step into a high-visibility leadership role at a pivotal moment for the platform. In this role, you'll define the technical vision, lead modernization initiatives and set the reliability bar across Robinhood's most critical infrastructure. You'll manage a team of 10+ engineers at various levels, own cross-team stakeholder relationships, and drive the engineering excellence that keeps our systems running at scale! This role is based in our Menlo Park, CA and New York, NY office(s), with hybrid attendance expected 3 days per week. At Robinhood, we believe in the power of in-person work to accelerate progress, spark innovation, and strengthen community. Our off

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars. SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next. ABOUT THE ROLE: We are looking for a Manager of Engineering to own the design, build-out, commissioning, and continuous improvement of automation, controls, and electrical systems at SpaceXSI's power generation facility in Southaven. This plant is critical infrastructure for SpaceXSI's AI supercomputers: it must deliver high-reliability power and supporting utilities at scale, with the uptime and response expected of a mission-critical compute campus. If it has a gas or steam turbine control system, a switchgear lineup, a plant electrical distribution network, a SCADA/DCS point, a control loop, or a supporting utility/process system (water, wastewater, fuel gas, HVAC, cooling) that must run reliably, this team designs it, specifies it, commissions it, and keeps it running. As a Manager, you will lead a team of engineers in a high-reliability, fast-paced environment. This is a hands-on technical leadership role — you will review P&IDs, challenge control philosophies, dive into DCS/PLC architecture, electrical protection schemes, and commissioning details, not just manage a roadmap. You will scale both the team and the systems as generation capacity and AI compute load g

Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI. What is The Role Platform Observability & Analytics runs the infrastructure that tells Elastic the truth about its own platform. The observability clusters show Cloud engineers how production is behaving right now, and the analytics pipelines show the business how the platform and the products get used over time. This role sits on the observability side. We run 200+ hosted deployments across every supported cloud region, ingesting logs, metrics and traces for all of Elastic Cloud, plus the SLA and SLO monitoring for ESS and Serverless. When Cloud engineering needs to know what production is doing, they're looking at something we run. What You Will Be Doing Owning end-to-end delivery of moderate-to-high complexity projects on the team’s roadmap , with minimal day-to-day direction. Operating and hardening shared Elastic Cloud infrastructure (ECH, ECE, and ECK) as Infrastructure as Code – writing and reviewing the Terraform, Python, and Go that other engineers depend on. Carrying a 24/7 on-call rotation: responding to incidents, driving them to resolution, and writing clear RCAs/postmortems that lead to lasting fixes rather than repeat pages. Reviewing others’ code and designs, and being a trusted second set of eyes on production changes to critical infrastructure. Mentoring less experienced engineers, and proactively raising risks, ideas

About Mach Industries Founded in 2023, Mach Industries is a rapidly growing defense technology company focused on developing next-generation autonomous defense platforms. At the core of our mission is the commitment to delivering scalable, decentralized defense systems that enhance the strategic capabilities of the United States and its allies. With a workforce of approximately 350 employees, we operate with startup agility and ambition. Our vision is to redefine the future of warfare through cutting-edge manufacturing, innovation at speed, and unwavering focus on national security. We are dedicated to solving the next generation of warfare with lethal systems that deter kinetic conflict and protect global security. The Role The RF Firmware Engineer will play a key role in developing advanced RF sensing capabilities for Mach’s autonomous defense platforms. Working on the DART team, you will focus directly on next-generation counter-UAV radar systems and RF seekers. You will be responsible for designing, implementing, verifying and optimizing the embedded firmware that controls the RF front-end of Mach’s RF seeker across the full development lifecycle - bare-metal board bring-up to final deployment. This role involves close collaboration with cross-functional teams that include antenna and RF hardware engineers to ensure the entire radar RF front-end system meets the mission-critical requirements. Success in this role requires strong technical execution, adaptability, and a hands-on approach in a fast-paced, iterative environment. Key Responsibilities Mission : Build next generation counter-UAV defense systems that will be used to defend human lives, critical infrastructure, and high value assets for the United States and its allies. Firmware development : Write high-performance, bare-metal C/C++ firmware for resource constrained microcontrollers powering the RF front-end boards in Mach’s radar products. Hardware co-design : Work with hardware engineers on component