Hire the Top 3% of Freelance RSA Engineers

Toptal is a marketplace for dedicated RSA (cryptosystem) engineers. Top companies and startups choose Toptal RSA freelancers for their mission-critical development projects.

No-Risk Trial, Pay Only If Satisfied.

Hire Freelance RSA Engineers

Brian Chuong

Freelance RSA Engineer
Canada
Toptal Member Since August 21, 2023

Brian is a highly skilled and experienced IT professional specializing in security. Throughout his 25+ year-long career, he has developed a deep understanding of information security principles and best practices. Brian has an excellent knowledge of various IT domains, including manufacturing, banking, and IT services.

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Senthil Chinraj

Freelance RSA Engineer
Canada
Toptal Member Since March 15, 2019

Senthil is a senior MuleSoft Certified Architect and Developer and a Certified Workato Consultant with 18+ years of experience in the development field. He's been working with MuleSoft solutions for 7+ years, excelling in enterprise-level integration projects using the Anypoint Platform, including customer- and MuleSoft-hosted runtimes in the CloudHub. Senthil is also experient in delivering robust apps that leverage his experience in Java-related stacks like Spring and Hibernate.

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Attila Kis

Freelance RSA Engineer
Hungary
Toptal Member Since April 10, 2016

Attila is a senior software engineer with substantial full-stack development experience. His passion is creating scalable services, always prioritizing user satisfaction and comfort. Attila has worked with international teams for years, mostly with Node.js technologies, relational and non-relational databases. His experience in maintaining customer relationships and managing development teams makes him an integral part of any team.

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Aleksandr Gaidukov

Freelance RSA Engineer
Thailand
Toptal Member Since August 31, 2016

Alexander has over twelve years of experience developing applications and several years with the iOS platform (iPhone and iPad). He has worked in teams of various sizes, from small to large groups. He also has worked freelance on and off for over the past five years. Alexander is a self-motivated and communicative professional who can work well independently and with a team.

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Menderes Fatih Guven

Freelance RSA Engineer
Canada
Toptal Member Since March 8, 2022

Menderes is a lead software developer and solution architect with 20+ years of experience building solutions in various IT domains, including mobile platforms, applications, and games. He combines great proficiency in several programming languages and development frameworks with strong team leading, mentoring, and problem-solving skills. Menderes is eager to learn and start working with new technologies and building new solutions.

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Yury Bondarau

Freelance RSA Engineer
Netherlands
Toptal Member Since August 9, 2016

For over the past five years, Yury has been working as a certified Salesforce.com advanced developer and Sales Cloud consultant. He possesses more than eight years of overall experience in web technologies, including HTML, CSS, and JavaScript. Yury is a friendly and well-organized professional who can express his ideas easily and politely.

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Sev Kelian

Freelance RSA Engineer
Canada
Toptal Member Since May 29, 2021

Sev is a strategically focused technologist experienced in cyber and cloud technology management and 20 years of experience in the financial services industry. He's adept at building strong relationships to drive value while maintaining secure infrastructure, cloud, data, and app platforms. Sev also excels at defining and modernizing cloud and cyber strategies, architecture and delivering DevSecOps processes via the automatic acceleration of cloud adoption.

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AJ ONeal

Freelance RSA Engineer
United States
Toptal Member Since October 22, 2020

AJ is an accomplished senior software engineer with 15 years of experience in applying cutting-edge technologies. He has worked on projects for Apple, Intel, and Sonos, and he specializes in APIs, IoT, authentication, and network protocols, such as OpenID Connect (OIDC) and Multicast DNS (mDNS). AJ also has a decade of experience in Go and Node.js, he is familiar with Rust, and versed in UX (not UI).

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Raul Guiu

Freelance RSA Engineer
Spain
Toptal Member Since December 17, 2013

Raul is a software developer with over 20 years of commercial experience in multiple locations, including the UK, Spain, Gibraltar, Finland, the US, and France. He is technology agnostic and is enthusiastic about keeping up to date with the latest trends and investigating their possible applications to business problems.

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Krisztian Bokros

Freelance RSA Engineer
Hungary
Toptal Member Since May 27, 2022

Krisz is an experienced tech analyst who started his career as a developer at a startup that became a multinational company with 1000+ employees serving major car manufacturers. He's been working on several projects with tier-one suppliers worldwide to set up project basics from requirements to API definition. His work consists of leading developer teams, mentoring, and feedback giving, and he is involved in performance optimization and developing mission-critical modules.

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Mats Bohlinsson

Freelance RSA Engineer
Sweden
Toptal Member Since May 30, 2022

Mats is a versatile coder who enjoys making simple solutions to complex problems and developing in small, agile teams. He considers tests a vital part of every app and prefers Python, C++, C, and Java languages. Mats has a broad knowledge of technologies and likes to do everything from soldering, uC programming, and embedded Linux to CI, build systems, and Android apps.

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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
Testimonials
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

Director

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

CEO

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

Co-Founder

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

Principal

How to Hire RSA Engineers Through Toptal

1

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.
2

Work With Hand-Selected Talent

Within days, we'll introduce you to the right RSA engineer for your project. Average time to match is under 24 hours.
3

The Right Fit, Guaranteed

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

FAQs

  • How are Toptal RSA engineers different?

    At Toptal, we thoroughly screen our RSA engineers 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 RSA engineers in less than 48 hours through Toptal?

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

  • What is the no-risk trial period for Toptal RSA engineers?

    We make sure that each engagement between you and your RSA engineer 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 RSA Engineers Are in High Demand.

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