Junior Cyber Security Researcher - September 2027

Added 26/08/2026

We are seeking a Junior Cyber Security Researcher to join a forward-looking security team from September 2027. This entry-level role is suited to someone with a strong interest in cyber security, threat research and emerging technologies, who is keen to develop practical experience in a collaborative environment. You will support investigations into new and evolving threats, contribute to security research projects and help translate technical findings into clear, actionable intelligence. Your responsibilities will include monitoring threat activity, researching vulnerabilities, malware, attack techniques and relevant security trends, and assisting with the assessment of potential risks. You will help gather, validate and...

Experienced Vulnerability Researcher

Added 16/09/2026

We are seeking an Experienced Vulnerability Researcher to identify, analyse, and responsibly disclose security weaknesses across a broad range of software, hardware, embedded systems, and network technologies. You will conduct independent and collaborative research into vulnerabilities affecting operating systems, applications, protocols, and connected devices, with a focus on developing reliable proof-of-concept exploits and practical remediation guidance. Your responsibilities will include performing vulnerability discovery through source code review, reverse engineering, fuzzing, static and dynamic analysis, and manual testing. You will investigate complex security issues, assess exploitability and impact, document technical findings, and work with engineering and security teams to validate fixes....

Junior Vulnerability Researcher - September 2027

Added 26/08/2026

We are seeking a Junior Vulnerability Researcher to join a technically focused security team from September 2027. This is an entry-level opportunity for someone with a strong interest in offensive security, software analysis and the discovery of previously unknown weaknesses. You will work alongside experienced researchers to investigate vulnerabilities across applications, operating systems, embedded devices and network technologies, helping to improve the security of products and services used by a wide range of customers. Your responsibilities will include analysing source code and compiled binaries, developing proof-of-concept exploits, reproducing reported security issues and assessing their potential impact. You will use techniques...

Cyber Vulnerability Researcher

Added 16/09/2026

We are seeking a Cyber Vulnerability Researcher to identify, analyse, and help mitigate security weaknesses across complex software, hardware, and network environments. You will conduct vulnerability research using a combination of manual analysis, reverse engineering, fuzzing, code review, and dynamic testing. The role will involve investigating emerging threats, validating reported vulnerabilities, developing proof-of-concept exploits where appropriate, and assessing the potential impact, exploitability, and scope of identified issues. You will collaborate with security engineers, developers, incident responders, and technical stakeholders to communicate findings clearly and support effective remediation. Responsibilities will include producing detailed technical reports, documenting attack paths and reproduction steps,...

Cyber Vulnerability Researcher

Added 09/09/2026

We are seeking a Cyber Vulnerability Researcher to identify, analyse, and help address security weaknesses across complex technology environments. In this role, you will conduct vulnerability research against operating systems, applications, embedded devices, cloud services, and network infrastructure. You will investigate emerging threats, develop proof-of-concept exploits where appropriate, and assess the real-world impact and exploitability of discovered vulnerabilities. Your findings will support defensive engineering, threat intelligence, incident response, and the prioritisation of remediation activities. Key responsibilities include performing vulnerability assessments and security research, analysing software and system behaviour, reverse engineering binaries, and reproducing vulnerabilities in controlled environments. You will create...

Cyber Researcher

Added 02/09/2026

We are seeking a Cyber Researcher to investigate emerging cyber threats, assess vulnerabilities, and develop practical insights that support stronger security outcomes. The role will involve monitoring threat intelligence sources, analysing malware and attack techniques, and researching developments across areas such as cloud security, application security, network defence, identity, and emerging technologies. You will translate complex technical findings into clear, actionable intelligence for both technical and non-technical audiences. Responsibilities will include designing and conducting independent research, validating findings through laboratory testing or proof-of-concept development, and documenting methodologies, risks, and recommendations. You will contribute to threat reports, technical briefings, vulnerability assessments,...

Senior Cyber Researcher

Added 01/09/2026

We are seeking a Senior Cyber Researcher to lead advanced research into emerging cyber threats, vulnerabilities, attack techniques and defensive technologies. This role will involve investigating complex security problems, developing original insights and translating technical findings into practical recommendations for security teams, decision-makers and external stakeholders. You will work across threat intelligence, vulnerability research, malware analysis, adversary tracking and security engineering, helping to strengthen understanding of the evolving threat landscape. Key responsibilities include designing and delivering research projects from initial hypothesis through to publication or operational implementation; analysing data from open, commercial and technical sources; conducting technical investigations, reverse engineering...

NCSC Cyber Physical AI Researcher

Added 04/08/2026

We are seeking a talented Cyber Physical AI Researcher to join an innovative team at the forefront of critical infrastructure security. In this role, you will conduct cutting-edge research at the intersection of artificial intelligence, cyber security, and physical systems. Your work will focus on identifying vulnerabilities, developing novel mitigation strategies, and designing AI-driven solutions to enhance the resilience of cyber-physical environments. You will analyse complex threat landscapes, collaborate with cross-functional experts, and produce impactful research outputs that inform best practices and policy development in the protection of essential assets. The ideal candidate has a strong background in AI, machine...

Operational Cyber Researcher

Added 03/08/2026

We are seeking an experienced Operational Cyber Researcher to join our dynamic team. In this role, you will be responsible for conducting in-depth research and analysis of cyber threats, vulnerabilities, and attack vectors. You will leverage your expertise to provide actionable insights that enhance the security posture of our systems and protect critical assets. Collaborating with cross-functional teams, you will develop and implement effective strategies to mitigate risks and respond to emerging threats in real-time. The ideal candidate will have a strong background in cybersecurity, with hands-on experience in threat intelligence, incident response, and security operations. You will be expected...

Operational Cyber Researcher

Added 03/08/2026

We are seeking an Operational Cyber Researcher to join our dynamic team, responsible for identifying and analyzing emerging cyber threats and vulnerabilities. The ideal candidate will conduct in-depth research and analysis on cyber threats, utilizing various tools and methodologies to enhance our security posture. You will collaborate with cross-functional teams to translate complex data into actionable intelligence, providing insights that will help shape our cybersecurity strategies. Additionally, you will develop and maintain threat intelligence reports and presentations for stakeholders, ensuring that all team members are informed about the latest developments in the cyber landscape. Your role will involve monitoring and...

Founding Security Researcher

Added 11/09/2026

We are seeking a Founding Security Researcher to establish and lead the security research function from the ground up. This is a highly influential role for an experienced security professional who enjoys investigating emerging threats, translating technical findings into practical defensive strategies, and shaping the direction of a growing security programme. You will work closely with engineering, product, infrastructure, and leadership teams to identify risks, strengthen security controls, and build a culture of security by design. Your responsibilities will include conducting in-depth research into vulnerabilities, attack techniques, malware, exploitation methods, and relevant developments across the threat landscape. You will design...

AI Security Researcher/Research Engineer

Added 08/09/2026

We are seeking an AI Security Researcher/Research Engineer to investigate emerging threats, vulnerabilities, and defensive techniques across artificial intelligence and machine learning systems. You will help assess the security, reliability, and resilience of models, data pipelines, agents, and supporting infrastructure, translating research findings into practical improvements. This role is suited to someone who enjoys working across theoretical research, hands-on experimentation, and engineering implementation in a fast-changing technical environment. Your responsibilities will include designing and executing evaluations of model behaviour, adversarial robustness, privacy, data poisoning, prompt injection, model extraction, misuse, and other relevant attack or failure modes. You will develop proof-of-concept...

Founding AI Security Engineer / Researcher at Refractal

Added 01/09/2026

We are seeking a Founding AI Security Engineer / Researcher to define and build the security foundations for advanced artificial intelligence systems. This is an early, high-impact role for someone who is comfortable working across research, engineering, and product development. You will investigate emerging threats affecting machine learning models, AI agents, data pipelines, and deployment infrastructure, translating your findings into practical safeguards and scalable security capabilities. Your responsibilities will include designing threat models for AI systems; identifying vulnerabilities such as prompt injection, data poisoning, model extraction, insecure tool use, and adversarial manipulation; and developing methods to evaluate model and application...

SWE - User Land Security Researcher, SEAR (Early Career)

Added 01/09/2026

We are seeking an early-career Software Engineer and User-Land Security Researcher to help identify, analyse, and address security weaknesses in user-space software and systems. You will work with experienced security engineers and researchers to investigate vulnerabilities, develop proof-of-concept demonstrations, and improve the resilience of products and services. This role is suited to someone who enjoys understanding how software works at a low level and applying that knowledge to practical security problems. Your responsibilities will include performing vulnerability research across applications, libraries, and operating-system components; analysing source code, binaries, crash data, and system behaviour; and developing tools, scripts, and automated techniques...