Security Researcher

RoleAs a Security Engineer at OpenEvidence, you will play a pivotal role in architecting and reinforcing the security of our essential infrastructure that underpins our globally recognized medical AI platform, utilized by healthcare providers. You will take charge of ensuring security posture, compliance integrity, and the resilience of our production ecosystem. Your responsibilities will include designing and fortifying cloud infrastructure through defense-in-depth strategies, enhancing security observability, and implementing robust controls across services and data platforms that manage sensitive medical data.We seek exceptional builders who are not confined to narrow roles. Our engineers engage across various products and projects, taking ownership wherever their contributions can yield the greatest impact.About UsOpenEvidence is the leading medical AI platform globally, experiencing rapid growth in usage, with over 40% of US clinicians adopting our solutions through product-driven word of mouth in just over a year. As a $12 billion company, our engineering team is comprised of 30 talented individuals from prestigious institutions like MIT, Harvard, and Stanford. We are on a mission to establish the default platform for medical AI, and we believe that groundbreaking products stem from a select group of exceptional, autonomous builders, organized around focused objectives and empowered to take initiative and move swiftly.If you are a top-tier engineer or scientist eager to push the boundaries of innovation and deliver tangible outcomes that will impact millions of lives, we would love to hear from you.CultureWe believe that work should be approached with a world-class mindset. Building from the ground up and scaling rapidly is a professional endeavor that demands uncompromising excellence. We understand that creating technologies that are unprecedented is only achievable through end-to-end ownership. Significant achievements arise when individuals commit to realizing them.Who Are You?If you seek a job where you can merely complete tasks from 9 to 5, this position is not for you. If you prefer writing papers, this role is not for you either. However, if you are eager to dive in, get your hands dirty, and passionately transform concepts into reality—affecting hundreds of millions of lives and driving significant revenue—this opportunity may be for you.The ideal candidate is a brilliant builder: intelligent, ambitious, resourceful, self-driven, meticulous, motivated, hard-working, and humble. Such talent is rare; we have only identified 30 individuals with these qualities, and we are eager to discover more.

As a Lead Security Engineer specializing in AI and Product Security at Nubank, you will play a pivotal role in safeguarding our innovative financial solutions. Your expertise will help us develop and implement robust security measures that protect sensitive data and maintain the trust of our users. You will lead a dynamic team, driving security initiatives and collaborating closely with various departments to integrate security protocols into our product development lifecycle.

Join Fabergent as a Cloud Security Engineer, where you will play a crucial role in crafting and implementing robust cloud security strategies. Your primary responsibilities will include monitoring security operations and integrating security measures across various cloud environments.In this hands-on position, you will establish frameworks for security engineering and operations, focusing on cutting-edge cloud security technologies. You will also be responsible for developing and deploying new security solutions, operationalizing alerts, metrics, scorecards, monitoring, and maintenance to ensure our cloud environments are secure.You will collaborate within project teams, providing valuable consultation on cloud security DevOps initiatives, and contribute to process improvements through tool development, automation, and seamless integration.Your expertise will be critical in interconnecting diverse security event sources, including server logs, network data, threat feeds, antivirus solutions, and vulnerability scanners. You will design and operationalize the entire security infrastructure within our cloud environments, ensuring robust protection against potential threats.We are looking for someone who is proactive, detail-oriented, and ready to roll up their sleeves to get the job done.

About UsNubank is a leading digital financial platform with over 127 million customers across Brazil, Mexico, and Colombia. Our mission is to combat complexity and empower individuals, as we revolutionize financial services in Latin America. This is just the beginning of the vibrant future we are building.As a publicly traded company on the New York Stock Exchange (NYSE: NU), we leverage proprietary technology, data intelligence, and a streamlined operating model to provide financial products that are simple, accessible, and human-centric.Our impact has been recognized globally, earning accolades such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. For more information, visit our careers page here.About the RoleAs a Senior Security Analyst, you will safeguard our physical integrity and ensure operational continuity within the country. In a fast-paced environment like Nubank, security goes beyond protection; it is about enabling safe business growth. You will oversee the local security landscape, guaranteeing world-class facilities, executive protection, and seamless crisis response. Your aim will be to cultivate a robust security technology framework and a culture of safety that aligns with our global standards while honoring local nuances.

Role overview The Corporate Systems Security Engineering Manager at Contentful leads efforts to secure corporate systems and data. Based in Miami, Florida, this position manages a team dedicated to protecting company infrastructure while supporting ongoing business growth and innovation. The manager shapes and drives strategic security initiatives across the organization. What you will do Lead, guide, and mentor a team focused on corporate systems security. Collaborate with other departments to assess risks and identify vulnerabilities in company systems. Create and implement security policies that support Contentful’s organizational objectives. Promote security engineering best practices throughout the company. Foster a culture where security awareness and rapid response are part of everyday work.

Iru is developing a Security Operations Center (SOC) function to support its AI-driven SaaS platform, which includes identity management, endpoint security, EDR, and cloud-native infrastructure. The SOC Manager will play a key role in shaping and leading a hybrid SOC model that integrates internal security staff with a Managed Detection and Response (MDR) partner. Role overview This Miami-based position focuses on building the operational framework for security operations at Iru. The SOC Manager will oversee governance, detection strategies, and incident response, ensuring the company maintains strong visibility across its technology environment. Collaboration with both internal teams and MDR partners is central to this role. What you will do Define and manage the operational framework for security operations Oversee governance, detection strategy, and incident response Drive operational excellence by working with internal teams and MDR partners Maintain visibility across Iru’s technology environment Ensure rapid response and continuous improvement in security operations Team collaboration This role works closely with internal stakeholders and external partners to protect users, applications, and devices across Iru’s platform. The SOC Manager is positioned at the center of Iru’s security efforts, coordinating responses and fostering ongoing improvements.

Join our dynamic team at info-ways as a Security Analyst. In this role, you will be responsible for safeguarding our information systems and ensuring compliance with security standards. You will conduct risk assessments, implement security measures, and respond to security incidents effectively.

ABOUT HUT 8Hut 8 is at the forefront of technological innovation, focusing on energy and infrastructure. Our mission is to construct and operate some of the globe's largest data centers tailored for next-generation computing workloads, including AI, colocation, cloud services, and Bitcoin mining. We take pride in offering stimulating and challenging roles for individuals eager to build teams, tackle complex problems, and make a significant impact from day one. If you are an ambitious person looking for a rewarding and challenging career, you've found the right place.ABOUT THE ROLEThe Security Architect is a pivotal leadership position responsible for shaping and advancing Hut 8's cybersecurity strategy. This role involves designing and implementing enterprise security architectures, spearheading risk management initiatives, promoting secure-by-design principles across infrastructure and applications, and serving as a trusted advisor to senior leadership. The ideal candidate will possess a unique combination of technical expertise, strategic insight, and cross-functional influence to enhance security maturity within an environment that supports AI, colocation, and digital asset operations.

Join our team as a dedicated Security Officer at Accor Hotels in Miami, where your expertise will play a pivotal role in ensuring the safety and security of our guests and staff. As a Security Officer, you will monitor and patrol the premises, respond to incidents, and maintain a safe environment for everyone.

Lewis Associates, a leading law firm based in Miami, is seeking a skilled Corporate & Securities Attorney to join our dynamic team. The ideal candidate will have a strong background in corporate law, with expertise in securities regulations and compliance. You will play a crucial role in advising clients on complex corporate transactions, regulatory matters, and corporate governance issues.Responsibilities include drafting and reviewing legal documents, conducting due diligence, and representing clients in negotiations and regulatory inquiries. We are looking for an individual who possesses excellent analytical skills, attention to detail, and a commitment to providing exceptional client service.

Join Gavin de Becker & Associates (GDBA), a prestigious firm dedicated to safeguarding the world's most influential and at-risk public figures. Established in 1978 by Gavin de Becker, a three-time Presidential appointee, our team of Protectors, Analysts, and Investigators is devoted to our mission of preserving human life through the assessment, prediction, and management of potential violence.Our Mission: Ensuring the Safety, Privacy, and Wellbeing of our ClientsAs a newly hired Protector in Miami, you will earn a minimum of $81,000 in your first year, with opportunities to increase your earnings up to $100,000 based on your relevant experience, performance in the GDBA Training Academy, and potential for promotion.Your Role as a Protector:Utilize GDBA Command Center tools and technology to monitor properties.Screen visitors and vendors, managing access to protected sites.Develop and implement security plans, responding effectively to medical emergencies.Provide physical security and logistical support at clients' homes and during travel.Facilitate secure transportation as necessary.Conduct advance surveys and preparations of locations prior to client arrivals.Document any suspicious activities in detail.Maintain readiness to address any threats that may arise.Who You Are:While military or law enforcement experience and a background in executive protection/security are advantageous, they are not essential to becoming a GDBA Protector. We prioritize your character over your past roles. Our most successful Protectors come from diverse backgrounds and excel due to their effective communication, physical fitness, eagerness to learn, honesty, and enjoyment of teamwork.

Information System Security Officer (ISSO)Employment Type: Full-Time, Mid-LevelDepartment: Administrative and Logistics SupportAs the Information System Security Officer (ISSO) at CGS Federal, you will work directly with U.S. Government clients to ensure the secure and compliant operation of mission-critical data and application platforms. Your role will involve being the primary authority on system security and compliance, engaging hands-on with live systems, and collaborating closely with engineers, operators, and customer security teams.At CGS, we bring together passionate, skilled, and innovative professionals dedicated to solving the government’s most challenging problems with state-of-the-art technology. We are looking for candidates who are driven to contribute to governmental innovation, value teamwork, and can proactively address the needs of others. Our environment fosters support and encourages professional development through various learning opportunities.Key Responsibilities:- Serve as the primary on-site contact for security and compliance across one or more U.S. Government clients.- Assist in system accreditation and authorization activities utilizing frameworks such as RMF or DIACAP.- Collaborate with software, systems, and field engineers to ensure appropriate security controls, configurations, and policies are implemented correctly.- Evaluate deployed software implementations to ensure alignment with relevant security requirements.- Develop, standardize, and maintain security documentation, including SSPs, POA&Ms, control narratives, and supporting artifacts.- Generate, validate, and organize compliance evidence after security settings are applied.- Compile accreditation artifacts into a structured, auditable repository.- Support audits, assessments, and ongoing compliance throughout the system lifecycle.- Maintain ongoing security and trust with clients through direct system access and coordination with engineering and operational teams.

Information Systems Security Officer (ISSO)Employment Type: Full-Time, ExperiencedDepartment: Information TechnologyCGS Federal is actively seeking a skilled Information Systems Security Officer (ISSO) with a solid background in DIACAP and/or RMF methodologies. This role requires comprehensive expertise in security assessment documentation to support the Department of Commerce's systems and its efforts to secure Authorization to Operate (ATO). The position is based at the client site located in the Herbert Hoover Building, Washington, DC. You will be responsible for managing the full life-cycle Assessment and Authorization (A&A) process, encompassing all six steps of the RMF process to ensure compliance and security for government systems.In this capacity, you will conduct thorough security assessments and oversee information system security activities in alignment with NIST 800.53, ensuring that all RMF requirements are met. At CGS, we pride ourselves on fostering a culture of innovation, collaboration, and professional growth. Our team is composed of motivated and talented individuals dedicated to addressing the government’s most pressing challenges through advanced technology.Key Responsibilities:Analyze systems to identify potential security vulnerabilities and recommend actionable improvements.Oversee organizational cybersecurity risk management and maintain a risk registry for senior leadership reporting.Provide security guidance and IS validation in accordance with NIST RMF, DoC, and local security policies.Offer configuration management recommendations for security software, hardware, and firmware, coordinating with various security officials.Ensure compliance with vulnerability scanning tools and manage patch updates to maintain system security.Support the transition from DIACAP to compliance with DoC RMF in security authorization activities.Act as a subject matter expert in cybersecurity and trusted system technology.

Lead for Enterprise Architecture, Data & SecurityWe are seeking an innovative and strategic thinker to take on the role of Lead for Enterprise Architecture, Data & Security at brightstar-ai. In this pivotal position, you will report directly to the Chief Information Officer (CIO) and collaborate with leadership teams across our portfolio companies to evaluate existing technology capabilities and identify opportunities for value creation.Operating ContextThis role operates within a Private Equity-backed framework, where your expertise will be essential in designing scalable, secure operating models that facilitate growth, integration, and readiness for market exit.Role PurposeThe Lead for Enterprise Architecture, Data & Security is responsible for the assessment, design, and governance of enterprise technology, data, and security architectures across our portfolio. You will translate current capabilities into targeted operating models that drive value creation, enhance operational scalability, and mitigate risk.Portfolio Assessment & Value IdentificationConduct swift assessments of current technology, data, and security capabilities across portfolio companies.Identify obstacles to growth, AI adoption, and operational efficiency.Convert findings into actionable value creation hypotheses and technology-driven solutions.Support investment, integration, and exit strategies.Target Operating Model DesignCraft future-state technology and data operating models in alignment with investment goals.Design robust enterprise and platform architectures that are effective in multi-entity settings.Establish practical standards that effectively balance speed, cost, and control.Facilitate the implementation of repeatable patterns across portfolio companies as necessary.Architecture, Data & Security GovernanceOversee reference architectures, integration patterns, and technology standards.Develop data governance models that facilitate analytics and AI while ensuring compliance.Implement security-by-design principles appropriate for regulated and international contexts.Minimize reliance on individual contributors and legacy vendors.Enablement of Delivery & Third PartiesServe as the architectural authority for delivery initiatives and third-party Statements of Work (SOWs).

Join Worth AI, a trailblazer in the computer software sector, as a Data Platform Engineer. Our mission is to transform decision-making through cutting-edge artificial intelligence, fostering collaboration and adaptability to create a significant impact in the tech realm. At Worth AI, we emphasize extreme ownership, unity, and the creation of passionate advocates among both our employees and customers.In this role, you will be responsible for designing, building, and maintaining the core data services that drive our products and analytics. You will manage end-to-end data pipelines and API services that gather, process, and deliver high-quality data to internal teams (such as data science, analytics, and product engineering) and external partners.You will be part of a dynamic, high-impact team that treats our data platform as if it were a product, ensuring strong SLAs and providing reliable self-service capabilities for both internal and external users.

Rocket Money supports millions of people in making smarter financial decisions. The platform provides members with clear financial insights and tools designed to save both time and money. Team focus The Data Platform team builds and maintains the core systems behind Rocket Money’s data-driven products. This group develops and supports infrastructure for collecting, processing, and delivering data to teams across analytics, machine learning, and software engineering. Engineers here work closely with other groups to ensure accurate data capture, resilient pipelines, and reliable self-service access for stakeholders. As the team grows, there is a shift toward formalizing standards and practices that will scale. Current tools include dbt, BigQuery, and Terraform, but the emphasis is on shaping architecture and defining how Rocket Money manages data for the future. Autonomy is high, but collaboration remains central as the platform evolves. What you will do Own the data platform infrastructure from end to end, focusing on security, usability, and performance. Collaborate with analytics, machine learning, and software engineering teams to support their data needs. Help guide decisions on data tooling, pipeline design, and governance. Create user-friendly interfaces that promote best practices across the team. Work proactively to improve data reliability by identifying and addressing issues at their source. Who succeeds here This role suits engineers who bring structure to ambiguity, balance stakeholder needs, and manage technical debt. The team values those who make informed choices, take ownership, and contribute to a collaborative environment. Locations Open to candidates in San Francisco, CA; Washington, D.C.; New York City, NY; Detroit, MI; Phoenix, AZ; Miami, FL; and Denver, CO.

Join Iru as a Staff Infrastructure EngineerAt Iru, we are at the forefront of the AI-driven security and IT landscape, empowering the world’s most rapidly expanding companies to safeguard their users, applications, and devices. Designed for the AI era, our platform seamlessly integrates identity and access management, endpoint security, and compliance automation—streamlining processes to give IT and security teams the control they need.Supported by leading investors in the technology sector including General Catalyst, Tiger Global, Felicis, Greycroft, and First Round Capital, Iru recently secured $100 million in funding, boosting our valuation to $850 million. Our clientele features innovative companies like Notion, Cursor, Lovable, Replit, and Mercor, and we maintain strategic partnerships with industry giants such as ServiceNow and AWS. Iru is proud to be recognized in Forbes’ America’s Best Startup Employers 2025 for our commitment to employee engagement and satisfaction.The RoleAs a Staff Infrastructure Engineer, you will play a crucial role in designing and scaling our AWS-based infrastructure to propel our growth. Collaborating with cross-functional teams, you will engineer secure, robust, and efficient systems that align with our ambitious performance and scalability objectives. Your proficiency in AWS, Terraform, and Kubernetes will be vital in crafting an infrastructure strategy that ensures our platform remains resilient and adaptable in an ever-evolving environment.We are in search of an experienced engineer who not only possesses extensive technical expertise but also a strategic mindset to navigate complex architectural challenges. Your capacity to assess trade-offs and make informed decisions will significantly influence our success. This role provides the opportunity to spearhead transformative initiatives, mentor team members, and contribute to the ongoing evolution of our infrastructure as we continue to expand.

Join Iru as a Data Engineering ManagerIru is at the forefront of AI-powered security and IT solutions, empowering the world’s most dynamic companies to safeguard their users, applications, and devices. Designed for the AI era, Iru integrates identity and access management, endpoint security, and compliance automation into a seamless platform, delivering control and efficiency back to IT and security teams.Supported by top-tier investors including General Catalyst, Tiger Global, and First Round Capital, Iru secured $100 million in funding in July 2024, achieving a valuation of $850 million. Our esteemed clientele features notable companies like Notion, Replit, and AWS, and we are recognized as one of Forbes’ America’s Best Startup Employers for 2025 due to our commitment to employee engagement and satisfaction.Your Role:We are seeking a passionate Engineering Manager to lead our talented data engineering team. This player-coach position involves both team leadership and active participation in technical initiatives. Expect to allocate approximately 40–60% of your time to hands-on design, development, and evaluation of data pipelines, models, and infrastructure in collaboration with your team. You will report directly to the Director of Data and work closely with cross-functional stakeholders to ensure our data platform evolves in line with the company’s growth trajectory.This role offers significant influence; the systems you architect and the decisions you make will fundamentally shape how our company—and its AI capabilities—perceives its products, customers, and performance metrics.About Our Team:The Data Engineering team is responsible for the infrastructure and pipelines that drive data-driven decision-making across our organization. We aggregate, transform, and deliver centralized data from our diverse product portfolio, enabling Data Science, Analytics, Finance, and Engineering teams to operate swiftly and with confidence in their insights.Our work is vital for the company’s AI and machine learning endeavors. The integrity, timeliness, and organization of the data we provide directly impact the potential of the models and systems built upon it. If you’re eager to create significant leverage for AI at scale, this is where it all begins.We utilize a modern tech stack that includes Kafka, Airflow, Snowflake, dbt, Python, SQL, and AWS. We are at a pivotal moment in our journey: having established a solid foundation, we now seek strong leadership to steer the next phase—modernizing our architecture, enhancing data quality, and improving collaboration across the organization.

Join Nubank as a Principal Software Engineer, where you will play a pivotal role in enhancing our Credit Card Core Platforms. We are looking for a passionate individual with a strong background in software engineering, who thrives in a collaborative environment and is eager to drive innovation. In this role, you will lead technical projects, mentor team members, and contribute to the overall architecture and design of our systems.