Senior Enterprise Security Engineer Jobs

Our Mission You call. You wait. You call again. In every other part of your life, you book in seconds. In healthcare, you’re blocked. We’re here to give power to the patient. For nearly 20 years, we’ve built the leading healthcare marketplace - helping tens of millions of people find and book the care they need. Now, we’re going further: building our infrastructure beyond Zocdoc’s marketplace to power access to care wherever patients search, from provider websites and insurance directories to search engines, AI platforms, and more. Healthcare still lacks something every other major consumer industry takes for granted: a seamless way to go from seeking to getting . We don’t want to own the front door to care; there isn't one. We want to make sure all of those doors open when patients are knocking. Fixing healthcare starts with fixing access to it. And we're still just getting started. Your Impact on our Mission: We are seeking a Senior Data Scientist to join Zocdoc's Marketing Science team. The team partners across our Marketing organization, including Patient, Provider, and Brand Marketing, to measure, optimize, and scale marketing efforts. In this role, you'll independently own complex analytical workstreams, develop data-driven insights that inform channel strategy, campaign optimization, lifecycle engagement, and brand effectiveness, and work closely with Marketing, Product, Finance, and Engineering partners to ensure measurement rigor and actionable outcomes. This is a senior individual contributor role with significant influence and deep partnership with Marketing and Product leadership. You don't need prior marketing experience to be successful in this role. We're looking for a strong analytical thinker who is excited to apply rigorous quantitative methods to questions about growth, engagement, effectiveness, and customer behavior — and interested in developing deeper expertise in marketing science. You’ll Enjoy This Role If You… Attri

SIXGEN’s mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape. POSITION OVERVIEW • Position: Senior Cost Estimator/Analyst • Location : Annapolis Junction, MD • Clearance Requirement: TS/SCI with Polygraph WHAT YOU’LL DO SIXGEN is actively seeking candidates to provide expert cost estimating and analytical support for Department of Defense (DoD) and Intelligence Community (IC) acquisition programs. This role is responsible for developing defensible life cycle cost estimates, performing quantitative analysis, and delivering data-driven recommendations that support strategic decision-making across complex acquisition initiatives. Responsibilities include: • Analyze business, financial, technical, and programmatic data using quantitative, statistical, economic, and engineering methods to support informed decision-making. • Collect, organize, normalize, analyze, and document cost, technical, financial, and programmatic data for acquisition programs. • Develop life cycle cost estimates (LCCE), independent cost estimates (ICE), component cost analyses (CCA), and program office estimates (POE). • Perform analysis of alternatives, business case analyses, cost risk assessments, schedule realism assessments, and cost estimating relationship (CER) development. • Support project teams by providing cost estimating expertise and advising on methodologies, models, and estimating factors. • Prepare, present, and defend cost estimates, analyses, and technical briefings to Program Offices, Program Executive Offices, and other stakeholders. Technology proficiency includes: • Master's degree in Engineering, Operations Research, Cost Estimating, Mathematics, Finance

SIXGEN’s mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape. POSITION OVERVIEW • Position: Senior CNO Developer • Location: Annapolis Junction, MD • Clearance Requirement: TS/SCI with CI Poly (or ability to obtain prior to starting) WHAT YOU’LL DO SIXGEN is actively seeking candidates to provide embedded operational support, develop advanced cyber capabilities, and deliver mission-focused software solutions in support of critical customer operations. This role combines software engineering, rapid prototyping, vulnerability research, and close collaboration with mission partners to develop and integrate cutting-edge cyber capabilities. Responsibilities include: • Provide embedded operations support, capability integration, and rapid prototyping in support of customer missions. • Design, develop, test, and debug software components, modules, and applications to meet mission requirements and development schedules. • Adhere to software build and release schedules while documenting technical findings and presenting results to stakeholders. • Develop software prototype demonstrations and conduct independent research into software and device vulnerabilities. • Collaborate with headquarters teams and local customers to develop, integrate, and enhance advanced Cyber Network Operations (CNO) tools. • Identify operational risks, manage competing priorities, and support mission execution in fast-paced operational environments. Technology proficiency includes: • Bachelor's degree in a related discipline with 12+ years of experience, or Master's degree with 10+ years of experience • Proficiency with Windows and Linux operating systems • Strong

Shape the Future with Dun & Bradstreet At Dun & Bradstreet, we believe data has the power to create a better tomorrow. As a global leader in business decisioning data and analytics, we help companies worldwide grow, manage risk, and innovate. Since 1841, businesses have trusted us to turn uncertainty into opportunity. We’re a diverse, global team that values creativity, collaboration, and bold ideas. Are you ready to make an impact and help shape what’s next? Join us! Explore opportunities at dnb.com/careers. The Senior Marketing Manager, Product Marketing plays a critical role in shaping how Dun & Bradstreet’s solutions are understood, valued, and talked about in the market. This role sits within the Marketing organization and focuses on market insight, customer understanding, positioning, and narrative development, rather than pricing, packaging, or commercial go to market ownership. This role partners closely with Product, Portfolio Marketing, Content, Demand Generation, Sales Enablement, and broader Marketing teams to challenge assumptions, elevate messaging quality, and ensure customer centric thinking is embedded across programs and communication.

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations Quebec, Canada About the Role Account Executives, Channel Account Managers, Business Development Representatives, Solution Engineers, Customer Success, and Sales Operations - all working together help our customers adopt Cloudflare and create great Internet-enabled experiences. The sales team at Cloudflare helps customers solve real, technical problems while creating revenue streams that help the company provide free service to

As a Senior Software Engineer on our growing Battery team, you will design and develop backend services that support residential battery programs, building against industry-standard energy protocols such as OpenADR, IEEE 2030.5, and related smart grid communication standards while maintaining a strong security posture across our infrastructure. Working closely with leading battery providers, you will improve grid flexibility and help push virtual power plants forward towards a sustainable climate future. You would join a relatively new and growing team with the opportunity to own integrations and contribute to highly visible projects with significant client impact. Partnering with engineers, product, and OEMs, you will design backend services that provide direct client value and unlock the full potential of residential batteries. Main Responsibilities: What you'll do Build and maintain integrations with industry-standard energy protocols and specifications, including OpenADR, IEEE 2030.5, and related smart grid/DER communication standards Develop and maintain our client-facing REST API and the backend logic that powers it Build integrations with distributed internal services to abstract away complexity and enable new product capabilities Ensure proper security and data protection policies, procedures, and monitoring are in place Collaborate with product and engineering to continuously improve requirements and software quality Collaborate with other teams to enable new API features and help them build on top of utility client data Update utility-facing Web portal to support new integrations Drive and embody the “Dev Owns Quality” culture Write and maintain technical documentation Other duties as assigned Required Skills and Experience: What you need 5+ years of professional software engineering experience Experience building against industry energy specifications such as OpenADR, IEEE 2030.5, OCPP, or similar smart grid/DER communication standards Experience with the

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Lyft's Customer Care Operations organization manages over 1.7 million monthly customer interactions and serves as the company's primary direct touchpoint with riders, drivers, and businesses — spanning frontline support across multiple customer segments, a global BPO workforce, and the central functions that enable them to operate at scale. The Senior Manager of Support Excellence owns the enablement infrastructure that determines whether Lyft's support operation can scale efficiently, react nimbly, and maintain high standards: Knowledge Management, Quality, Learning & Performance, and Tooling Enablement. This is not a role for someone who wants to maintain and optimize — it's a role for someone who wants to reimagine. The right person brings a bold, integrated vision for how these functions work together with Operations, Product, and Technology to improve customer outcomes and accelerate Lyft's evolution into an AI-native, human-enhanced support organization. They will set the direction, hold the bar, and move at the pace the environment demands — with the industry expertise to know what "great" looks like and the conviction to pursue it. Reporting to the Director of Business Planning & Central Operations, this role leads a team of 4-6 direct reports and 40-50 indirects, each owning a distinct function on the team team. Responsibilities: Vision & Strategy Define and own an ambitious, integrated vision for how Knowledge Management, Quality, Learning & Performance, and Tooling Enablement work together — not as separate functions, but as a unified enablement system that improves customer outcomes and advances Lyft's AI-native support evolution. Expand active AI fluency to every function in the portfolio — from how knowledge is structured for AI retrieval, to how quality signals feed mod

About the Team DoorDash Labs is an independent team within DoorDash. We explore robotics and automation to transform last-mile logistics in the long term. If you have a passion for applying robotics solutions in a service used by millions of people, then we want to talk to you! About the Role As a Senior member of our Service Operations team at DoorDash Labs, you'll take on advanced diagnostic and repair work that keeps our robot fleet running. You'll work closely with the Associate Operations Manager and own your workload with minimal supervision. This is an on-site role with expectations of 100% in-office presence in Mesa, AZ. This position is available on the AM shift (7:00 AM – 3:30 PM), five days per week, including at least one weekend day. You’re excited about this opportunity because you will… Execute any Senior Service Technician task and: Diagnose complex, intermittent, or unusual faults in robotic systems, modular components, and support vehicles, often requiring advanced troubleshooting techniques and interpretation of complex data Perform advanced repairs, including component-level troubleshooting and fixes on intricate electrical systems, control units, and associated hardware, with minimal supervision Interpret complex technical manuals, schematics, and diagnostic flowcharts to guide troubleshooting efforts Meticulously document complex diagnostic processes, root cause hypotheses, non-standard troubleshooting steps, repair details, and component failure information in the service management system, contributing potential updates to the knowledge base Provide technical guidance, mentorship, and on-the-job assistance to Level 2 Technicians for challenging tasks Work independently to manage and prioritize assigned workload effectively Calibrates, configures, and maintains specialized diagnostic tools and test equipment We’re excited about you because you have… 2+ years of service work experience Curiosity and an inclination for all things mechanica

Reddit is a community of communities. It’s built on shared interests, passion, and trust, and is home to the most open and authentic conversations on the internet. Every day, Reddit users submit, vote, and comment on the topics they care most about. With 100,000+ active communities and approximately 130 million daily active unique visitors, Reddit is one of the internet’s largest sources of information. For more information, visit www.redditinc.com . Location: This role is based out of our London office. About the Role: As a Senior Growth Manager, UK on Reddit’s International Community team, you will be a key member of a cross-functional team responsible for deepening Reddit’s presence in the market. This is not a marketing role. Rather, you will drive user and ecosystem growth by building and scaling communities, executing local growth initiatives, coordinating cross-functional stakeholders, and leading initiatives that strengthen Reddit’s local ecosystem and user experience. This role combines strategic planning, growth-focused execution, cross-functional influence, market ownership, and community development. In this role, you will have a significant impact on shaping Reddit’s presence and success in the market, driving user and ecosystem growth at scale while strengthening engagement across local communities. Key Responsibilities: User & Community Growth Strategies: Establish and execute comprehensive strategies to grow the user base and nurture local communities. Growth Operations: Design, launch, and scale local growth programs aimed at strengthening Reddit's ecosystem of users, communities, and contributors. Apply a creative, entrepreneurial approach by continuously testing and evaluating new ideas to reach your objectives. Cross-functional collaboration: Serve as the local go-to person for providing market insights and local input to cross-functional teams, including Comms, Product, BD, and Marketing. Coordinate the execution of market-speci

The opportunity Polestar is accelerating the transition to sustainable mobility through electric performance. Behind that journey sits a powerful digital platform enabling everything from checkout and payments to order management, delivery, retail tools, and customer self‑service. At Polestar Digital, we build innovative, scalable solutions that power our global platform. You will join a focused team working across a critical part of the customer journey, delivering systems that customers globally and hundreds of internal users depend on every day. With real ownership, close collaboration, and global impact, you will play a key role in shaping the future of Polestar’s digital ecosystem. We are now looking for a Senior Software Developer to join our headquarters in Gothenburg, Sweden. Let us describe the challenge we offer As a Senior Software Developer, you will be part of a cross‑functional agile team responsible for designing and building high‑performance, scalable solutions that support Polestar’s global digital platform. You will take ownership of system architecture and technical decision‑making while working closely with Product Managers, Designers, and Operations teams to deliver reliable and impactful solutions. The role combines hands‑on development, system design, and collaboration, while also contributing to a strong engineering culture through mentoring and knowledge‑sharing. You will write clean, well‑tested code and contribute to building systems that are robust, scalable, and maintainable. At the same time, you will stay up to date with modern development practices and emerging technologies, including evolving paradigms such as agentic AI. What you'll do You will design, build, and evolve scalable digital solutions that power Polestar’s global platform. Your responsibilities include: Designing and implementing high‑performance, globally scalable systems Taking ownership of system architecture and contributing to technical decision‑making Writing clean

Location : Come and join us in Hamburg or Berlin! Following Lyft’s acquisition of Freenow, we are looking for a Senior TPM to lead the technical workstreams that get us to Day 1 readiness — the period between signing and closing — and to set up the integration that follows. This is a high-stakes, high-visibility role reporting into the EU Tech Leader, with direct exposure to Freenow and Lyft leadership. You will be the single point of accountability for technical Day 1 readiness. That means making sure every employee, every office, and every critical system is ready to operate underFreenow by Lyft from the moment the deal closes — and that the integration stream is up and running the day after. You will also be the TPM accountable for the integration of future acquisitions Freenow makes. This is not a role for someone who wants to administer a project plan. You are expected to be technically credible, opinionated, and comfortable holding senior people to account across IT, Security, Infrastructure, Engineering, Legal, People, and Finance. You make decisions when others stall, escalate cleanly when you can’t, and keep the whole machine moving. YOUR DAILY ADVENTURES WILL INCLUDE: Day 1 readiness. Own the end-to-end technical readiness plan between signing and closing. Define what “ready” means, track every workstream against it, and call the go/no-go on technical readiness for Day 1. IT and workplace cutover. Coordinate identity and system access (SSO, IdP, mail, productivity suite, engineering tooling), hardware provisioning and re-imaging, and office setup including network, VPN, Wi-Fi, meeting rooms, and physical access. Make sure nobody shows up on Day 1 unable to work. Security and compliance posture. Partner with Security and Legal to make sure the technical environment meets the new shareholder’s requirements on Day 1 — access controls, data handling, audit trails, vendor relationships. Integration stream kickoff. Stand up the technical integration workstreams

About BlockTech BlockTech is a fast-paced algorithmic trading firm facilitating global cryptocurrency derivatives and spot trading while expanding into new markets. As we continue to grow rapidly, we are looking for a Senior Software Engineer to take technical ownership of our Core systems and help shape how they evolve through our scale-up phase. This is a role for an engineer who has already built and operated correctness-critical systems at scale and who wants their technical decisions to set direction, not just follow it. What will you do? You will own the systems that keep our trading operation accurate at every level — positions, PnL, instruments, hedging, and the data flowing between them. Across exchanges and asset classes, your work determines whether the numbers our traders and risk team rely on are correct. As a senior engineer, you will also set the technical standards the rest of the team builds against. You will: Own the books. Maintain and evolve our position, trade, and PnL systems so they remain accurate across every venue. Architect the platform that supports trading. Design services that handle real-time exchange flow with the throughput and reliability our quoting and hedging depend on, making the structural calls that keep them fast and correct under load. Own the data flows. Operate and harden the public and private pipelines bringing market prices, account state, and trade events into our systems in real time. Lead venue integrations end-to-end. Deliver exchange and prime-broker integrations across protocol, account model, settlement, reconciliation, and surveillance and define the patterns we reuse for the next one. Model the instrument universe. Own the systems describing every tradable instrument - lifecycle, expiry, margin, RFQs, fast-path quoting - where both correctness and latency matter. Build self-healing systems. Design the detection and repair flows that identify position discrepancies and correct them automatically. Own hedging inf

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations Seoul, South Korea About the Role The Cloudflare APAC sales organisation operates as one integrated revenue system. Account Executives, Customer Engineers, Partner Account Managers, Business Development Representatives, Customer Experience Managers, Professional Services and Revenue Operations work as a continuous engine — winning, deploying, adopting, expanding, and scaling platform commitments across the full customer lifecyc

ABOUT THE TEAM At Mural, we're changing how teams collaborate, think, and make decisions together. The Growth & Engagement team owns the experiences that turn a single-player tool into a multiplayer habit: the loops that bring people back, help them find their work, and pull their colleagues into a mural. Mural's self-serve growth runs through these experiences, and engagement and retention are central to how the business grows. YOUR MISSION As Senior Product Manager, Growth & Engagement, you will own the end-to-end self-serve experience, from a user's first touch through activation, return usage, and conversion to paid. You will treat the full funnel as one system: acquisition, activation, engagement, retention, sharing, and monetization. You will run a high-tempo experimentation practice, partner deeply across Product, Engineering, Design, Data, Marketing, and Sales, and make the calls that turn occasional users into teams that rely on Mural every week. This is a role for someone who wants to own real growth outcomes, not just ship features. You will own the surfaces that decide whether Mural's self-serve engine grows. Engagement and retention here move the business directly, and you will own the full loop across growth and engagement rather than a narrow slice of it. You’ll have a rare end-to-end view of the funnel, from acquisition through in-product engagement. You will work alongside thoughtful product, design, and engineering partners who care about craft and impact. WHAT YOU'LL DO Own product strategy, roadmap, and execution for the self-serve growth and engagement experience, from first touch through activation and return usage Build and optimize the invite, sharing, and join experience Drive activation and retention by improving the moments that bring people back: home and dashboard, notifications, search, rooms and folders, comments, and more Partner closely with Marketing to connect acquisition and re-engagement with in-product activation across

About the Team The Future of Computing Research team is an Applied Research team within the Consumer Devices group focused on developing new methods and models as we advance forward in our mission of building AGI that benefits all of humanity. As a Software Engineer on the Future of Computing Research team, you will work together with both the best ML researchers in the world and the greatest design talent of our generation to push the frontier of model capabilities. About the Role We are looking for a Software Engineer to join our team to build tools and services that enable AI research, evaluation, and data generation workflows. The best work in this role will start with an ambiguous design question and turn it into working research systems. You will work closely with researchers, designers, and engineers to build the evaluation systems, synthetic data generation pipelines, review tools, and supporting platform services. The goal is to make these workflows easier to create, run, and trust without requiring bespoke engineering support for each new design concept. You will help ensure that research artifacts have a clear lifecycle, runs are reproducible and observable, and results provide useful evidence for product and model-training decisions while the underlying systems remain reliable and reusable. This role is based in San Francisco, CA. We use a hybrid work model of three days in the office per week and offer relocation assistance to new employees. In this role, you will: Build web applications, APIs, data models, and backend services for AI research workflows. Build tools to author and manage evaluation tasks, rubrics, graders, suites, and rollout configurations, including workflows for publishing, versioning, auditing, and sharing research artifacts. Automate evaluation runs and generate useful reports for design, research, and engineering teams. Support synthetic data generation workflows for multimodal and conversational research, including tools that comb