Security Testing Services – Strengthen Your Systems Against Evolving Threats
Fortify your security posture with Toptal’s Security Testing Services. We work with you to conduct thorough vulnerability assessments, simulate advanced attack scenarios, and deliver actionable security improvements that protect critical assets, reduce risk exposure, and support regulatory compliance.
Toptal’s Security Testing Services help assess and strengthen your organization’s security posture. We provide comprehensive testing—ranging from penetration testing to secure code reviews—to uncover vulnerabilities, assess threat exposure, and advance your cybersecurity program.
Penetration Testing
Simulate real-world attacks to identify exploitable vulnerabilities in your systems, applications, and networks.
Security Audit
Uncover risks, control gaps, and compliance issues with a thorough evaluation of your systems, configurations, and controls.
Cloud Security Assessment
Evaluate cloud infrastructure and configurations to improve compliance and mitigate cloud-specific security risks.
Secure Code Review
Analyze source code to identify potential security flaws and deviations from coding best practices.
Vulnerability Assessment
Run targeted security scans to identify security weaknesses before they can be exploited by malicious actors.
Threat Modeling
Map assets, data flows, and attack vectors to identify vulnerabilities and guide focused security testing efforts.
Static Application Security Testing (SAST)
Review source code with automated tools to detect security vulnerabilities at the earliest stages of development.
Dynamic Application Security Testing (DAST)
Test running applications to detect security issues in real time during execution.
Mobile Application Security Testing
Assess mobile apps across platforms to detect security gaps, weaknesses, and unauthorized access risks.
Network Penetration Testing
Pinpoint vulnerabilities and misconfigurations in your internal and external networks through structured testing.
Red Teaming Exercises
Simulate advanced attack scenarios, including insider threats and lateral movement, to test detection and response capabilities.
Social Engineering Testing
Evaluate human risk exposure through simulated phishing, impersonation, and manipulation tactics.
Looking for guidance about the perfect security testing service for your needs?
Our security testing experts, with experience at leading companies, develop and deploy tailored solutions to meet your business needs and unique industry demands for sustainable results and long-term success.
1
Discover
A leader from our team works with you to understand your business challenges, pain points, and strategic goals to uncover new opportunities and identify the options to reach your objectives.
2
Define
Toptal leaders collaborate with your team to define your specific goals and service needs, evaluating multiple approaches and aligning requirements with your strategic objectives to define the best solution.
3
Develop
Once your service is defined and you have your talent or team on board, they will create your unique project timeline, process, and initial proposals, whether you’re revamping your security testing infrastructure or conducting a one-time security audit.
4
Deploy
Toptal will get to work, tracking quality assurance, handling project management, and maintaining the delivery schedule.
As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 500 companies.As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 500 companies.
Previously At
CUSTOMIZED SOLUTIONS
Security Testing Services That Deliver Value
Toptal delivers leading security testing services through its diverse talent network and flexible delivery models. We implement the right skills at each project phase, blending expertise from various roles for seamless execution.
End-to-End Delivery by Toptal
On-demand Talent and Teams
End-to-End Delivery by Toptal
Comprehensive project delivery, tailored to your specific requirements.
As Toptal’s CEO of Technology Services, Robert leads strategy and operations across our technical services portfolio, spanning AI, automation, and operations. He previously served as Deloitte’s Managing Director & Chief Commercial Officer, transforming its Cloud Operate and Engineering business into a multibillion-dollar operation. He held senior roles at IBM, Velocity, co-founded Corio, and was CIO for two Fortune 500 companies.
Rachael serves as a Delivery Manager at Toptal with a focus on leading diverse global teams in developing innovative solutions for our clients. She works across multiple disciplines, including technology, marketing, and management consulting. Rachael specializes in managing people and client relationships, process optimization, and driving teams toward optimal business outcomes.
Subbu is a subject matter expert in information security and has more than 22 years of information technology experience. He has assisted large enterprise customers in the banking, telecommunication, and e-commerce sectors with security transformation, DevSecOps, security architecture, and implementations. Subbu’s security expertise includes AWS, GCP, IAM, enterprise security, data protection, and application security and compliance.
Anurag is an experienced security professional with a strong background in incident handling and threat hunting based on different attack frameworks. He has expertise in Active Directory and cloud security (Azure), utilizing offensive security tools such as Bloodhound to identify and mitigate threats. He's played a key role in the development and deployment of SOC infrastructure. He's delivered training to different tiers of the SOC team on security best practices, compliance, and the cyber threat landscape.
Ravi is a QA test automation engineer with 13+ years of web and mobile experience. He delivers solutions at different levels of the test pyramid and helps clients introduce CI/CD workflows, create deployment pipelines, and improve overall QA processes and outcomes. Ravi's enterprise QA experience includes LTI, ClinicalWorks, CitiusTech, Tata Consultancy Services, and Capgemini. In addition to three ISTQB certifications, Ravi is a Certified Scrum Master.
Gaya is a cybersecurity expert who loves finding cracks in company security and creating powerful solutions to fill them. With numerous global CTF (capture the flag) competitions under her belt, Gaya excels in vulnerability management, cloud security, incident response, security awareness, and security risk management (PCI/DSS, ISO 27001, CMMC). Gaya is well versed with Qualys, Rapid7, Nessus, Splunk, Carbon Black, SentinelOne, Microsoft Sentinel, Azure cloud tools, and those in Kali Linux.
Since 2006, Sebastian's been working in the field of software quality assurance, specializing in tests (automation and strategy definition). He's developed appropriate processes, prepared documentation, selected automation approaches, and implemented test automation frameworks, tests, and CI/CD integrations. In addition, he's built various automation solutions—from complicated event-driven distributed systems with microservices to web apps.
Dimitris is a QA automation architect focused on de-risking clients’ technical investments by upskilling teams and automating processes. He particularly enjoyed his four years at Novoda, the mobile agency, where he worked on challenging projects with no existing testing practices. Dimitris has set up clients’ QA teams from scratch and developed his leadership skills.
Previously at
On-demand Talent and Teams
30,000+ vetted professionals, ready to deploy individually or in teams.
Montasir is an InfoSec leader with 20+ years of experience managing cybersecurity and enterprise architecture. He has designed and enforced security solutions for complex IT systems, including creating five-year security technical architecture roadmaps. With solid technical expertise and a profound grasp of industry best practices, Montasir develops and executes cybersecurity strategies that effectively mitigate risks, protect sensitive data, and ensure compliance with regulatory requirements.
Aseem enjoys building DevSecOps pipelines and setting up automation using Go, Python, Terraform, CI/CD pipelines, AWS Lambda, and Google Cloud Platform (GCP), among others.
Dolly is a QA engineer with more than 11 years of experience in a range of industries, including real estate, travel, finance, and aviation. She has created multiple testing frameworks from the ground up using Selenium, TestNG, Cucumber, and Cypress and has automated QA processes. Dolly manages test execution not only from the technical point of view but also from the customer’s, as she believes product usability is as vital as functionality.
Arun is a senior DevSecOps architect with 12+ years of experience and a master's degree in information technology. He has worked with government departments, banks, telecoms, healthcare companies, and small- to medium-scale enterprises worldwide.
Nicaury is a security engineer with 7+ years of experience in information security, cybersecurity, and systems administration. She has worked in fast-paced, remote environments for years, developing excellent communication and leadership skills. Nicaury is a certified professional with proven problem-solving and analytical skills, a fast learning curve, and the ability to adapt to any team.
Emmanuel is a cloud security engineer with experience in systems auditing, application security, and secure cloud deployment. He has delivered sensitive technology projects across the East African region and globally in the public and private sectors. Emmanuel’s experience is backed by three Microsoft Azure and two AWS certifications. He is a Certified Ethical Hacker (CEH). Emmanuel holds a Master of Science in Information Technology from Carnegie Mellon and a Bachelor of Science from United States International University-Africa.
Seema brings more than 20 years of software testing and quality assurance expertise to the table. She has substantial experience with manual testing and the test automation of web and mobile applications. Seema is a certified Scrum master, an IBM-certified Db2 professional, and an AWS-certified solutions architect comfortable with Agile and Waterfall approaches. Her in-depth knowledge of API and performance testing delivers excellent results.
Jakub has been a QA leader and engineer since 2015. He is focused, committed, and driven by results. As an analytical thinker with a data-driven approach to decision making, he's also a perfectionist who knows the meaning of "good enough." His business acumen and sense of responsibility enable him to decide whether to apply a flexible approach or stand his ground to deliver the best solution. Jakub keeps an open mind and never disregards suggestions without giving them some thought.
Chris is a pioneer in ethical hacking and a Linux systems engineer with multiple certifications and more than 22 years of experience. He is well-known in ethical hacking and open source communities and mentioned in books and documentaries.
Previously at
Looking for guidance about the perfect security testing service for your needs?
Having previously worked with these leading global companies, our talent brings valuable insights and expertise to deliver world-class outcomes.
WHY ORGANIZATIONS CHOOSE US
Toptal in Action
Discover the cutting-edge benefits our clients enjoy from the global Toptal network.
Toptal enables global media giant to advance security operations amid digital transformation.
Challenge: The company faced rapidly evolving security threats while struggling to keep pace with hiring needs. The slow hiring process and difficulties retaining staff created gaps in security operations, leaving the company vulnerable to emerging cyberattacks.
Solution: Toptal assembled a team of security specialists with expertise in cloud security and vulnerability assessment. Throughout the partnership, the team implemented robust product security measures and leveraged threat hunting capabilities to identify potential vulnerabilities. Additionally, by integrating DevSecOps practices, the team fostered a culture of continuous improvement and resilience against emerging threats.
Impact: Toptal’s close collaboration led to the successful delivery of Terraform and Ansible code, with the pre-production phase completed two months ahead of schedule. This achievement was crucial in ensuring that the client could effectively continue its digital transformation without delays.
Toptal’s contributions to our Splunk migration from our on-prem data center to AWS have been critical to our success. Communication and collaboration with both our team and customer teams has been outstanding.
Senior Manager, Data Enablement & Analytics
Media Company
Toptal Ranked #1 Most Reliable Professional Services Company in America
Newsweek and Statista’s rankings were based on an independent survey of more than 2,400 decision-makers at Fortune 500s.
Newsweek's Most Reliable Companies in America 2026 ranking. Toptal is ranked #11, the highest-ranked professional services firm.
Is your organization an Operator, a Builder, or a Governor? A leading figure in the information security industry shares how this knowledge helps CISOs fine-tune their security teams and tactics.
Michael is a seasoned information security leader with experience at the Advanced Cyber Security Center and Toptal. He holds a bachelor’s degree from the Massachusetts Institute of Technology and a master’s degree in high-tech crime investigations from George Washington University.
CEO, Technology Services
