Hi, my name is Andrej Gajdos

Need to Hire a Software Architect?

Hire a software architect | Andrej Gajdos
Hire a software architect | Andrej Gajdos
apple logo binance logo bankrate logo kettle logo adaptwordwide logo a.teams logo toptal logo nash logo shipserv logo shipbuilder logo stackbit logo ataccama logo 3icap logo ctrl logo


I am going to build a new project.
  • Unsure about which technology stack best aligns with your product’s requirements?
  • Looking for someone who can seamlessly translate business needs into the language of code?
  • Want to be sure that the project effortlessly expands to accommodate millions of users?
  • Embark on a quest to ensure that the code’s structure stands as a paragon of maintainability and clarity?
  • Seeking to harness the power of existing technologies to accelerate your development process?
I have an existing project.
  • Essential user flows are tangled and slow, much like a sluggish user interface that hampers users journey?
  • The project is unstable. It suffers from random crashing, spontaneous error messages that even the keenest developers find themselves at a loss to diagnose?
  • Looking for someone who can set up metrics and performance dashboards to detect and diagnose end-users’ experience with mission-critical services?
  • Want to be sure that welcoming millions of users into the project will unfold smoothly, free from any complications?
  • Looking for someone who can refactor and fix critical user flows to improve user flow performance, server throughput and page load performance?
Get an advice from experienced software architect. SEE MORE


Are you searching for a Software Architect with over a decade of expertise in leading tech innovation and architectural design? My journey in the tech world has seen me developing, and launching technological solutions for a diverse range of companies, from nimble startups to established tech giants. I have been at the helm of over 20 high-impact projects, steering them to success.

In my role as your Software Architect, I offer much more than mere technical skill. I bring a visionary approach to your product development roadmap, optimize your development processes, and ensure your project’s architecture is both robust and capable of scaling. My expertise ranges from full-stack development to devising and implementing efficient solutions, focusing on crafting swift, clean, and maintainable web applications.

My expertise in software architecture is firmly established in my proficiency with technologies such as React, Node.js, and Next.js, especially in crafting captivating and fluid front-end experiences through React. The success of my previous endeavors is reflected in user interfaces that were more than just functional—they were key elements contributing to the product’s allure. Check my portfolio to witness the range of transformative projects that I have spearheaded.

Offering my services as a Software Architect, I am ready to collaborate with businesses across various scales and sectors. Don’t hesitate to reach out.

[email protected]


In the world of software development, where ideas transform into digital realities, I offer my services as a Software Architect, guiding your project through various paths:

Ongoing Guidance

Regular meetings with the team. I will help you to navigate your product development roadmap, set the rhythm of engineering work, and conduct code reviews to ensure your project’s architecture is as sturdy as a castle. Minimum price is $4800/month.

Part-time development

If you feel like you need my help everyday or every second day around 20-25 hours/week. This is a good option that works well for many companies and start-ups. I am in touch with the team frequently and it helps to identify and solve issues very early.

Full-time development

I can devote myself full-time, 40 hours per week, to your cause. I enjoy full-stack development and bringing business ideas into life. Beyond the realms of software architecture, I can fortify and enhance your infrastructure, weaving in various integrations and functionalities like a skilled craftsman.

One-time assessment

Do you need a one-time assessment or anything else?

  • I can help you set up the engineering pace and unveil the potential within your resources
  • I can survey your project and deliver a scroll of recommendations
  • I can set up the infrastructure for your project, so developers can focus on product development instead of devops


software architect | portfolio item

GoSchoolBox is a SaaS platform that serves as the technical infrastructure layer between school districts and tutoring companies. The number of users grew from 50k to 1mil. The GoSchoolBox platform has suffered from a significant number of application stability issues such as spontaneous error messages, gateway timeout errors, slow page load times and slow user flows. My role as a software architect was to ensure platform stability, resiliency, and scalability. I helped the team to integrate and set up APM with metrics and performance dashboards to detect and diagnose end-users’ experience with mission-critical services. I refactored and fixed critical user flows to improve user flow performance, server throughput and page load performance. I optimised Mongo search performance to allow users search millions of records within seconds.

  • AWS
  • Node.js
  • MongoDB
View project →
fractional cto | portfolio item

As a fractional CTO I helped the team with strategic consult on the product development roadmap. I managed and led team of developers. I made code reviews to identify issues before they translate into technical debt. I helped developers with best practices and leverage tooling to speed up the development process and ensure code quality. I architected and built project’s infrastructure, CI pipeline and third-party integrations.

  • AWS EC2
  • Node.js
  • React.js
View project →
Frontend Technology Lead | Portfolio Item

Meridian provides next-gen, AI-powered workflow tools to private investors. As a Frontend Technical Lead, my responsibility was not just to manage but also to inspire and guide the front-end team through the intricacies of front-end development. One of my significant contributions was collaborating closely with the Product Designer. Together, we crafted a UI design system that was not just visually appealing but also intuitive and user-centric. This system became the cornerstone of the user experience, embodying the essence of Meridian’s innovative approach. I built the MVP from scratch and set up CI pipeline for Meridian’s UI.

  • React
  • Storybook
  • Typescript
View project →
Website builder platform in React | Portfolio Item

Stackbit is a website builder that helps developers of any level to build their own Jamstack sites based on Next.js and Tailwind, fast. I helped Stackbit’s team to set up the tooling and design the architecture for design system of the main platform. I helped and mentored senior React developers best practices and what patterns to use to solve complex flows in React projects. I was working on fixing various issues and bugs in the platform. I was working on additional feature sets for enterprise clients. I worked as a full-stack developer in React.js, Node.js and MongoDB with focus on front-end development.

  • React
  • Node.js
  • MongoDB
  • Typescript
View project →


Andrej exceeded our expectations. Over the course of our project, Andrej rose to the challenge of a true consulting CTO. He provided trusted and invaluable strategic consult, evaluating our other engineering talent through code reviews, setting engineering pacing, providing devops support and consulting on our product development roadmap.

As a truly talented engineering, Andrej led the design and development of our infrastructure, managed the more complicated integrations and set the standard for our early development practices. We are grateful and advantaged for having had Andrej as a member of our team.

Steven Greitzer, Founder & CEO at Stealth Startup

Andrej worked with our team to develop a rather complex web application using React. He joined us at a critical stage in the development process and was instrumental in guiding our team to adopt best practices for React and helping us implement more modular code.

We found Andrej to be very professional, a skilled and efficient programmer, and enjoyable to work with. He easily integrated with the rest of our team and was productive from day one. We would happily hire Andrej to work with us again.

Peter Ellis, President at Big Ladder Software

Andrej worked with Adapt Worldwide in 2019, developing multiple React widgets for a major marketing campaign. Andrej exceeded our expectations beyond measure through his skill and dedication.

Communication with Andrej was fluid and uncomplicated, and he always went above and beyond to not only ensure the project was promptly delivered, but that it was done so to an immaculate standard. His insight and experience was hugely valuable to the project; Andrej truly helped us shape our vision and reach our goals with strong execution.

I would highly recommend Andrej as an exceptional React developer who is completely dedicated to producing quality, functional, engaging content. It would be an absolute pleasure to work with Andrej again in the future.

Michael de Alwis, Creative Content Executive at Adapt Worldwide

Andrej was a key contributor to a complex, critical React web application. His work is timely and thoughtful, and he’s a great communicator and team player. We hope to work with him again soon.

Jacob Budin, Development Manager at Kettle

After working with over a dozen developers from several different countries, it was absolutely refreshing to have had the pleasure to work with Andrej in building a full stack, dynamic web app.

Andrej has all of the required technical expertise that one could hope for when it comes to building a highly scalable and dynamic website. For me, this meant taking designs from an early stage and building the entire front and back end of the project, release ready.

He also exhibits a particular pride in his attention to detail (a trait which had been hard to find previously). This meant that after giving Andrej direction, you can always be confident that the code will be delivered exactly as required. Equally in my experiences, If Andrej see’s a better method, he will always suggest it, helping us end up with the best product possible.

All in all, Andrej was indispensable to our team and certainly one of the best developers that I have had the pleasure to work with.

Marcus Scott, Founder and Director of SayCaster (rebranded to Bitcast)

I had the pleasure of managing Andrej for about 1 year at Zeroturnaround. His natural ability to recognize deficiencies and address them made him an immediate asset to the team and the company.

Andrej would regularly think of different ways to provide our clients with the best grasp of the benefits that our tools offered. This allowed him to grow in respect from our clients and his co-workers. Andrej was a pleasure to work with and is always looking for ways to provide himself with personal growth.

Andrej also is an excellent orator. His clear and concise voice allowed customers to feel comfortable working with him and collaborating with him. This lead to his sales team being able to close many deals that they were previously unable to close.

I would love to be able to work with Andrej again someday and comes with my highest of recommendations.

Curtis Johnson, Sales Engineering Manager at ZeroTurnaround (acquired by Rogue Wave Software)

Andrej was a great help in creating a vision and front-end prototype for our startup. I have very little technical knowledge, and he was so knowledgeable in finding us technologies that would work for our needs. He is very professional, friendly, honest, and his communication is excellent. I highly recommend Andrej!

Carlene Takaki, Professional Swim Coach at Palo Alto Stanford Aquatics


My Journey From a Freelance Developer to a Fractional CTO

I have been working as a freelance developer since 2017. Last year, I moved to tech lead roles such as software architect, tech lead, and fractional CTO. I have never planned to shift to tech lead roles, because I thought it’s too stressful. I was wrong and I want to share with you how to get there and when it’s a good idea to move to tech lead positions.

How to keep front-end project and design system in sync [Case Study on Why Software Projects Fail]

A case study on how to keep in sync your front-end project and design system by configuring linting tools Stylelint and ESLint.

Wrong Component Composition in React.js Projects [Case Study on Why Software Projects Fail]

Case study of component composition in React projects. Examples from past projects of wrong component compositions and how to avoid it and fix it.

Effortless Typescript Type Sharing Between React and Node.js

Are you seeking a hassle-free method to share Typescript types between projects without additional complexities? Look no further! In this blog post, I’ll walk you through a streamlined approach that will save you time and effort while supercharging your REST API development. You don’t need any additional tooling, frameworks, or libraries.

CSS Modules vs CSS-in-JS vs Atomic CSS: Which One to Choose for Your React.js Project?

In this blog post, I want to present different styling approaches in React.js projects. Many times, this decision is based on developers’ preferences. However, we should consider the type of the project, developers’ team experience, and workflow. Commonly, back-end or full-stack developers know how to code in React.js, but don’t have much experience in CSS development.

React Class Components vs Functional Components with Hooks: A Never Ending Story

A lot of developer teams choose to use React class components instead of functional components with hooks for the wrong reason. To me, it’s surprising to see this discussion over and over again. React released hooks over two years ago, it’s a proven approach and many developers are still not sure if it’s a good idea to use them or not. I feel like this topic is a never ending story. I would like to talk more about this topic more and why developers are struggling to use React hooks.


I’m ready to hear about your project. Don’t hesitate to get in touch with me using the contact form.

    What type of project do you need completed?

    This will help me understand the basic needs of your project and set the right budget and timeline expectations.

    Which services do you need?

    Please specify the type level of completion you'd like me to deliver on this project.

    Ongoing advicePart-time developmentFull-time developmentOne-time assessmentOther

    What's the budget for your project?

    This will help me guide you toward the most appropriate solution within your budget. Consider this a starting point to our conversation, not a final quote.

    When do you need this project completed?

    Select the option that best expresses your expectations for the timeline of this project.

    [email protected]