Hire Top Freelance System design Developers

Olajide Olanrewaju

Freelance System design Developer5.0 (285 reviews)

I am a **Multi-talented** professional adept in **Full Stack Web Development**, **Web Security Research**, and **Robotics Engineering**. As a dedicated Web Security Researcher and ethical hacker, I uncover vulnerabilities and mitigate security risks, bridging the gap between development and cybersecurity. Additionally, as a Robotics Engineer, I design and build sophisticated robotic systems, applying my deep understanding of mechanics, electronics, and programming. Passionate about crafting clean, scalable code and innovative robotics solutions, I contribute to projects that prioritize both robust development, cybersecurity practices, and cutting-edge robotic technology.

Vijay Rangan

I am an 12-year veteran in software engineering and have spent the majority of my career building full stack applications with NodeJS, Java and React. I specialise in full stack web development, micro services architecture, and distributed systems. Being an AWS Certified Solutions Architect, I have also architected a payment system for a client of my own, built end to end with serverless technologies such as AWS Lambda, AWS DynamoDB and a handful more. I love to work on improving product quality and security of web applications by implementing best practices in frontend and backend development. I enjoy helping others learn more about what they do, whether it's through articles or videos or even just personal mentoring sessions on mentor cruise.

shaikh hamza

Hi, I'm Hamza Shaikh, a Senior Full-Stack Developer with over 5 years of experience building scalable, AI-integrated web applications. I'm currently at HighLevel, where I’ve led initiatives around intelligent dashboards, natural language querying, and GPT-4-powered automation—delivering measurable impact like reducing support costs by 30% and API latency by 50%. My tech stack spans **Next.js, NestJS, Vue.js, and Hono.js**, along with deep integration experience using **OpenAI, LangChain, and RAG** frameworks to build agentic workflows and intelligent systems. I thrive in greenfield environments where I can take full ownership of a product, from idea to production. I'm passionate about crafting clean, maintainable code and building user-facing tools that solve real problems—especially in fast-paced, AI-driven environments like AI Acquisition. I’m excited about the opportunity to contribute to AI Clients and help entrepreneurs scale their businesses with cutting-edge tools.

Umair Jameel

● Development in Javascript and its frameworks/libraries like Angular, React, Next.js, Express, Node, Express, mongodb, mongoose etc. ● Full stack development in next.js including frontend, backend and databases. ● Architecture projects from scratch as well as building new features in existing projects. ● Debug and fix errors in existing projects. ● Database architecture using mongodb, postgres, ORMs like prisma and drizzle. ● Implement the best practices of code structure, logic building and making code efficient. ● Follow pure Object Oriented Programming and Data Structures for solving problems. ● REST API development using node and its frameworks (mainly express). ● Know best practices of writing test cases (it includes unit testing and automation testing). ● Decision making in choosing programming languages, frameworks and libraries for a particular project. ● Good communication skills and understanding client requirements. ● Do research and development to stay up to date with new technologies and always keen to adopt better approaches in solving any kind of problem. ● Experience in CI/CD, docker, github actions etc. ● Teaching experience for over 5 years now. These are some projects I have worked on: https://learnwith.flashclass.io/ https://www.getconch.ai/ https://www.blackbox.ai/ https://www.dexhero.io/ https://unation.com/

Sarthak Jain

Have 5 years of professional experience in delivering quality softwares to customers. Currently working as an **SDE at Amazon**. _Most lines of code written in Java._ Enthusiastic about Data structures, Algorithms and System Design. Have good experience in making cloud enabled scalable applications. Have been writing code since 9 years now. Focus on building efficient and optimised softwares.

Saroj Ligal

Results-driven Technical Lead with extensive experience in leading full stack development teams, designing system architectures, and implementing efficient technical solutions. Proven ability to manage technical resources, drive strategic initiatives, and enhance productivity through effective technical standards and practices. Adept at bridging the gap between technical and management teams to achieve organizational goals.

Farbod Zarouri

Highly experienced Java Software Engineer with over 9 years of expertise in designing and implementing enterprise-level identity and access management (IAM) systems. Proven track record of leading complex software projects, from concept to deployment, utilizing a deep knowledge of distributed systems, microservices, and secure authentication protocols. Adept at managing cross-functional teams, conducting detailed code reviews, and driving continuous improvement in software development practices. Passionate about solving challenging technical problems and delivering scalable, high-quality software solutions. Currently focused on advancing my career in software engineering and project management.

Kshitiz

A seasoned software developer who worked with Amazon and has 6+ years of experience developing applications that scale efficiently and remain maintainable in the larger frame of the product lifecycle. Have built robust applications which have scaled from 500 to 21+ million users serving one of the biggest supply chains in the world. Have also delivered on projects of all sorts in Java and Python with companies like Samsung and Paytm as well as freelancing with multiple Silicon Valley startups. Also have mentored a lot of folks at all ages and levels in Data structures, Algorithms, Web development, System design, and programming languages like Python, Java, JS, Golang, etc. Come say Hi👋 First session is always on the house :) See if my teaching style really makes a difference in your journey or not

Raman Trehan

I can help you with the following: -> Design/Implement large scale distributed systems and dive deep into concurrency, communication, availability, scalability, etc. Rather than just knowing Kafka, Redis and Cassandra, it's important to understand what system features you need to put these building blocks together. -> Data structures and algorithms (Leetcode, Topcoder, etc), low level system design (object oriented programming, design patterns) and high level system design (distributed systems, etc). -> Well structured plan and mentorship (short/long term) for interview preparation, conduct mock interviews for software engineers and senior software engineers. I have extensive experience in tech interviews, as a candidate as well as being part of panel team. -> Mentoring for growing into senior software engineering roles. -> Project building (end to end). -> Pivoting from another domain/career into software engineering. -> Other tech topics that you might be interested in (AWS, Kafka, Redis, Databases, etc). About me: I write software and work with distributed systems day-in and day-out. I have worked at Qualcomm in the area of smart vehicles. I have been involved with startups like Dailyhunt to build backend systems end to end; which could scale to the order of 50k+ requests a second. Feel free to block something on my calendar: https://calendly.com/ramantrehan/30min. Kindly ping me on chat when you do so.

Brijesh Gupta

Problem Solver,Regular coder , Mentor and a Self taught develor Having Extensive experience in DSA , Java , Spring Boot Micoservices and BIg Data Technologies like Spark,GCP, Cassandra,Kafka,Bq , Apache Hadoop etc. I have been working as DSA and Java Trainer for last 2 years and have trained more than 1000 students and professionals. Learning and Teaching is my passion so I offer discount rate for students and long term tutoring.