Hire the Top 3% of Freelance Nessus Developers

Toptal is a marketplace for dedicated Nessus developers, engineers, programmers, coders, architects, and consultants. Top companies and startups choose Toptal Nessus freelancers for their mission-critical Nessus development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance Nessus Developers and Engineers

Daniel van Heerden

Freelance Nessus Developer
CanadaToptal Member Since March 3, 2022

Daniel is an information security professional with over ten years of experience in identity and access management (IAM) and secure cloud architecture. His expertise includes the role and attribute-based access control, cybersecurity, vulnerability management, cloud infrastructure design, endpoint security, SIEM, and incident response. Daniel excels in understanding business needs and creating custom solutions in line with organizational goals.

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Ike Anyanwu

Freelance Nessus Developer
United StatesToptal Member Since May 5, 2021

Ike is a senior cloud security engineer with 12 years of experience and a solid knowledge of the National Institute of Standards and Technology (NIST) and International Organization for Standardization (ISO) publications, cybersecurity, cloud, and DevSecOps tools. He's deployed multiple security tools to monitor and mitigate attacks on infrastructure. Ike is proficient in infrastructure as code, managing a CI/CD pipeline, and protecting applications, websites, cloud networks, and infrastructure.

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Alex Zirka

Freelance Nessus Developer
NetherlandsToptal Member Since August 30, 2018

Alex is a seasoned and enthusiastic application security engineer with 13+ years of experience in penetration testing, back-end development, cloud platform management, DevOps engineering, and IT infrastructure. His back-end development background allows him to use automation in security analysis and penetration testing and helps to establish and maintain the SDLC process. DevOps-wise, Alex is most skilled and experienced with Linux systems and infrastructure management.

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Joe Bagdon

Freelance Nessus Developer
United StatesToptal Member Since April 4, 2022

Joe is a seasoned security and infrastructure engineering professional with experience performing application and network assessments, writing and enforcing policies, providing defense for an enterprise environment, and administrating infrastructures. He has in-depth knowledge of information security, information technology, and information warfare. Joe is a competent Python programmer, adding automation and integration that reduces workloads.

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Robert Muller

Freelance Nessus Developer
RomaniaToptal Member Since January 14, 2019

Robert is a DevOps engineer with in-depth and practical experience in a wide range of technologies. He's also a great listener and chock full of information, which he gladly shares with his team as needed. Cloud-agnostic, automation-oriented, and passionate about coding, Robert joined Toptal to find the most complex and challenging projects out there.

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Michal Lewandowski

Freelance Nessus Developer
PolandToptal Member Since December 26, 2023

Michal is a highly skilled cybersecurity professional specializing in implementing ISO 27001 and Trusted Information Security Assessment Exchange (TISAX) standards. He's an expert in crafting security strategies, conducting comprehensive risk assessments, and developing advanced cybersecurity solutions. Michal is focused on continual professional development and remaining at the forefront of cybersecurity innovation, offering invaluable expertise in a dynamic technological landscape.

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Milorad Kalezic

Freelance Nessus Developer
MontenegroToptal Member Since December 24, 2019

Milorad has over 15 years of experience in the maintenance and development of system software and great working knowledge in a variety of system environments. With attention to details and strong analytical skills, he provides creative and innovative solutions to the most complex problems. He's dedicated and enthusiastic, focuses on concise and articulate communication, and strives to complete all assignments to the highest standard.

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Andrew Osipov

Freelance Nessus Developer
RussiaToptal Member Since January 5, 2021

Andrew is a highly motivated, versatile, and skilled DevOps and DevSecOps. He's delivered numerous large-scale infrastructure implementations with cost-effective approaches. Andrew excels in high load, availability, and security using AWS, Kubernetes (EKS), and Terraform, and implementing infrastructure-as-code and configuration-as-code approaches. Andrew is also brilliant at managing compliance, security, and company-wide documentation for health and payment data (HIPAA and PCI DSS).

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Christian Fernandez

Freelance Nessus Developer
SpainToptal Member Since May 17, 2021

Chris is a pioneer in ethical hacking and a Linux systems engineer with multiple certifications and 22 years of experience. He is well-known in ethical hacking and open source communities and mentioned in books and documentaries. Chris was adding, securing, and auditing networks, servers, and systems before security engineers and DevSecOps existed. His expertise includes network protocols, low-level programming languages like C and Go, Ruby and Python scripts, and many cloud and systems tools.

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Joshua Neuman

Freelance Nessus Developer
United StatesToptal Member Since November 23, 2022

Joshua is a seasoned cybersecurity professional with deep experience and knowledge in governance, risk, compliance (GRC), auditing, vulnerability management, network security, and network engineering. He has consulted for both the US government and the private sector. Joshua's previous roles include lead network defense security engineer, product owner and stakeholder, voice over IP (VOIP) engineer, and information assurance lead.

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Dennis van der Meulen

Freelance Nessus Developer
NetherlandsToptal Member Since October 19, 2023

Dennis is a junior engineer specializing in IT security. With a background in systems implementation for operational technologies, he excels in enabling systems to communicate with each other. Dennis is currently focusing on projects in the energy industry.

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Discover More Nessus Developers in the Toptal Network

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Toptal in the press

... allows corporations to quickly assemble teams that have the right skills for specific projects.

Despite accelerating demand for coders, Toptal prides itself on almost Ivy League-level vetting.

Our clients
Creating an app for the game
Conor Kenney
Creating an app for the game
Leading a digital transformation
Elmar Platzer
Leading a digital transformation
Building a cross-platform app to be used worldwide
Building a cross-platform app to be used worldwide
Drilling into real-time data creates an industry game changer
Drilling into real-time data creates an industry game changer
Tripcents wouldn't exist without Toptal. Toptal Projects enabled us to rapidly develop our foundation with a product manager, lead developer, and senior designer. In just over 60 days we went from concept to Alpha. The speed, knowledge, expertise, and flexibility is second to none. The Toptal team were as part of tripcents as any in-house team member of tripcents. They contributed and took ownership of the development just like everyone else. We will continue to use Toptal. As a startup, they are our secret weapon.

Brantley Pace

CEO & Co-Founder

I am more than pleased with our experience with Toptal. The professional I got to work with was on the phone with me within a couple of hours. I knew after discussing my project with him that he was the candidate I wanted. I hired him immediately and he wasted no time in getting to my project, even going the extra mile by adding some great design elements that enhanced our overall look.

Paul Fenley


The developers I was paired with were incredible -- smart, driven, and responsive. It used to be hard to find quality engineers and consultants. Now it isn't.

Ryan Rockefeller


Toptal understood our project needs immediately. We were matched with an exceptional freelancer from Argentina who, from Day 1, immersed himself in our industry, blended seamlessly with our team, understood our vision, and produced top-notch results. Toptal makes connecting with superior developers and programmers very easy.

Jason Kulik


As a small company with limited resources we can't afford to make expensive mistakes. Toptal provided us with an experienced programmer who was able to hit the ground running and begin contributing immediately. It has been a great experience and one we'd repeat again in a heartbeat.

Stuart Pocknee


How to Hire Nessus Developers Through Toptal


Talk to One of Our Industry Experts

A Toptal director of engineering will work with you to understand your goals, technical needs, and team dynamics.

Work With Hand-Selected Talent

Within days, we'll introduce you to the right Nessus developer for your project. Average time to match is under 24 hours.

The Right Fit, Guaranteed

Work with your new Nessus developer for a trial period (pay only if satisfied), ensuring they're the right fit before starting the engagement.


  • How are Toptal Nessus developers different?

    At Toptal, we thoroughly screen our Nessus developers to ensure we only match you with talent of the highest caliber. Of the more than 200,000 people who apply to join the Toptal network each year, fewer than 3% make the cut. You’ll work with engineering experts (never generalized recruiters or HR reps) to understand your goals, technical needs, and team dynamics. The end result: expert vetted talent from our network, custom matched to fit your business needs.

  • Can I hire Nessus developers in less than 48 hours through Toptal?

    Depending on availability and how fast you can progress, you could start working with a Nessus developer within 48 hours of signing up.

  • What is the no-risk trial period for Toptal Nessus developers?

    We make sure that each engagement between you and your Nessus developer begins with a trial period of up to two weeks. This means that you have time to confirm the engagement will be successful. If you’re completely satisfied with the results, we’ll bill you for the time and continue the engagement for as long as you’d like. If you’re not completely satisfied, you won’t be billed. From there, we can either part ways, or we can provide you with another expert who may be a better fit and with whom we will begin a second, no-risk trial.

Tap Into World-Class Talent

  • Trusted Experts Only

    Trusted Experts Only

    All of our talent are seasoned experts who ramp up quickly, readily contribute as core team members, and work with you to minimize onboarding time.

  • The Right Fit

    The Right Fit

    We have a knack for matching you with the right fit. Start working with your new hire on a no-risk trial period, paying only if satisfied.

  • Scale as Needed

    Scale as Needed

    Hire talent within 48 hours and scale your team up or down as needed, no strings attached.

  • Seamless Hiring

    Seamless Hiring

    We handle all aspects of billing, payments, and NDA’s. Let us take care of the overhead while you focus on building great products.

  • Flexible Engagements

    Flexible Engagements

    Choose the engagement type that suits your needs — hourly, part-time, or full-time — with the ability to change anytime.

  • Expert Talent Matching

    Expert Talent Matching

    Focus on your project and enjoy support from your dedicated account executive and expert talent matcher.

Top Nessus Developers Are in High Demand.

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