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# Fractional CTO / Senior Full-Stack Technical Lead — Project-Based We are a newly established software development agency looking for a **Senior Full-Stack Developer / Fractional CTO / Technical Lead** to collaborate with us on client projects. **Important:** This is NOT a full-time salaried position and there is currently no guaranteed weekly workload. We are an early-stage agency, so work will be assigned project by project, with compensation agreed before each project begins. We are looking for someone who combines **strong hands-on development skills with technical leadership, architecture, client communication, and mentoring ability**. ## What You Will Do Your responsibilities may include: * Lead full-stack development on client projects * Design software/system architecture from scratch * Turn client business problems into practical software solutions * Make and explain technical architecture decisions * Evaluate technical feasibility of client requirements * Build and review backend/frontend functionality * Design APIs, database structures, integrations, authentication, etc. * Identify security, scalability, performance, and maintainability issues * Join client discovery and technical meetings when required * Answer technical questions from clients * Help estimate technical complexity and implementation approach * Review code written by other developers * Collaborate with junior/intermediate developers * Review AI-assisted/vibe-coded implementations * Mentor developers and explain how their implementations can be improved Our team will handle areas such as: * Lead generation * Marketing * Client outreach * UI/UX design * Business operations * Initial project organization We primarily need you for **technical leadership + architecture + hands-on full-stack development**. ## Technologies Our projects may involve: **Backend:** Node.js, [login to view URL], TypeScript, [login to view URL], Django, Flask, Laravel, Ruby on Rails, Java/Spring Boot, C#/.NET **Frontend:** React, [login to view URL], JavaScript, TypeScript, jQuery, HTML/CSS **Database/ORM:** PostgreSQL, MySQL, MongoDB, Prisma You **DO NOT need to know every technology listed above**. Strong engineering fundamentals, architecture knowledge, problem-solving ability, and the ability to learn or understand unfamiliar technologies are more important. ## Leadership & Collaboration This is particularly important to us. You may work with junior developers, intermediate developers, designers, business-development members, and developers using AI-assisted/vibe-coding tools. We want someone who can: **Lead. Build. Teach. Explain. Review. Collaborate.** We are NOT looking for someone who believes being senior means controlling everything or replacing another developer's work. If a junior developer creates something that works but has poor architecture, we expect you to explain the problem, show them how it can be improved, and help the team produce a better implementation. Technical ability without good collaboration is **not enough for this position**. We value humility, reliability, communication, and leadership. ## Client Communication You may participate in client meetings as our technical representative. However, client relationships and commercial communication remain managed through the agency. You must not independently solicit, negotiate with, accept work from, or attempt to bypass the agency to work directly with an agency client. Technical discussions with clients should take place through the agreed project/agency communication process. ## Selection Process We will NOT select someone simply because they have the biggest portfolio or longest CV. Shortlisted candidates may be invited to complete a **small POC/practical technical exercise**. We may evaluate: * Problem-solving * Architecture * Code quality * Technical reasoning * Code-review ability * Client communication * Leadership * Mentoring ability * Collaboration * AI-generated code review * Responsiveness and reliability The exact POC scope and compensation will be agreed before it begins. ## Compensation This is currently **project-based work**. There is no guaranteed full-time workload or monthly salary. Compensation will be agreed separately for each client project based on the scope, responsibilities, expected involvement, and deliverables. As our agency develops a more consistent client base, there may be opportunities for more regular collaboration. ## Before Bidding, Please Answer Please don't send only a generic proposal. Answer these questions: 1. How many years of professional software-development experience do you have? 2. Which backend technologies are you strongest in? 3. Which frontend technologies are you strongest in? 4. Have you worked as a Technical Lead, Lead Developer, Architect, or CTO? 5. Have you participated in client discovery/technical meetings? 6. Have you designed software architecture from scratch? 7. Have you mentored junior developers or reviewed their code? 8. Are you comfortable reviewing AI-assisted/vibe-coded implementations? 9. Are you comfortable with project-based work with no guaranteed weekly hours? 10. What country/time zone are you based in? 11. Please provide your GitHub, LinkedIn, or portfolio if available. Finally, answer this scenario: **A junior developer delivers a feature that works correctly, but you believe the architecture and code quality are poor. What would you do?** We are looking for someone who can **lead, architect, build, solve client problems, teach, and collaborate — without ego.**
Project ID: 40638529
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144 freelancers are bidding on average $115 USD for this job

As a Fractional CTO and Senior Full-Stack Technical Lead with over a decade of experience, I specialize in backend technologies like Node.js and Java/Spring Boot, as well as frontend technologies including React. I have a proven track record in software architecture design, mentoring junior developers, and fostering collaboration within teams. I am adept at reviewing and improving code quality, and comfortable with project-based work. Based in (Add relevant country/time zone), I prioritize timely communication and availability aligned with project needs. In response to a scenario where a junior developer delivers a feature with functional but subpar code, I would rectify the issues while mentoring and guiding the developer towards improvement. My GitHub, LinkedIn, and portfolio (available upon request) highlight my technical expertise. I look forward to potentially collaborating with your team to solve complex problems and promote continuous learning and growth. Thank you for considering my proposal.
$135 USD in 5 days
7.2
7.2

With my diverse set of skills and extensive experience as a frontend designer, backend developer and full-stack web developer, I am the perfect fit for your Senior Full-Stack Developer / Fractional CTO / Technical Lead position. As a WordPress specialist, I have a deep understanding of UI/UX design which enables me to create impactful, high-performing websites. My proficiency in Node.js and React.js equips me not only to build responsive user-friendly sites but also to architect sustainable solutions that solve complex business problems effectively. Furthermore, I understand the importance of good collaboration which is why I value humility, reliability, communication and leadership. My strong engineering fundamentals coupled with my ability to learn quickly makes me adept at adapting to new technologies as per project requirements. Given that you don't require knowledge of every technology listed in your project description but rather emphasise on a technical aptitude and a keen problem-solving approach; rest assured, this is where our objectives align perfectly. Together we can build on your early-stage agency's successes and scale them exponentially downstream. Let's start constructing ground-breaking digital solutions together!
$100 USD in 7 days
6.0
6.0

Dear Sir, Following is our response to your questions: Professional Experience: 30+ Years Backend: .NET, .NET Core, Node.JS Front end: .NET MVC, Angular (Typescript) Have worked as Technical Lead for many projects Have previously participated in projects which involved writing a feasibility report for developing integrated software for organizations. Have been working as Team Lead for different projects handling work from Junior Developers. Can review AI generated code Am OK with Project based work Based in India +05:30 GMT With respect to review of junior developers work, I would ask for a rework as I would prefer a code that in more or less in line with quality and architecture with rest of the application. It is not acceptable if some parts of software are written in a much poorer quality than the the other/major parts of the application. In case you need any clarifications, please feel free to contact us. Thanking you and best regards Sanjay Kaul
$100 USD in 7 days
6.2
6.2

Greetings, It’s clear you’re seeking a blend of strong technical leadership and hands-on development to shape your agency's projects effectively. The challenge often lies in balancing architecture with practical solutions, ensuring that the code is not only functional but also maintainable and scalable. How to achieve this: - Lead development by establishing clear architectural guidelines that promote best practices. - Collaborate closely with junior developers, providing constructive feedback to enhance their skills and code quality. - Engage in client discussions to translate business needs into actionable technical requirements. - Ensure code reviews focus on both functionality and adherence to architectural standards. With experience in Node.js, React, and TypeScript, I’m well-equipped to tackle these challenges. Looking forward to discussing the project scope and timeline to better understand your needs.
$100 USD in 7 days
5.8
5.8

Hi, Your requirement closely matches my background: I combine hands-on development with architecture, client communication, technical leadership and team mentoring. I have 14+ years of professional development experience and currently lead an IT development agency. I have worked as a Senior Developer, Associate Team Lead and Team Lead, taking projects from requirements and architecture through development and production. 1. Backend: Node.js, PHP/Laravel/CodeIgniter, REST APIs, MySQL, MongoDB, PostgreSQL, Python/FastAPI. 2. Frontend: React, Vue, AngularJS, JavaScript, HTML/CSS and Flutter. 3. Architecture: Yes, CRM/ERP, SaaS, mobile, API-driven platforms, AI solutions and third-party integrations. 4. Client discovery: Yes, requirements, technical discussions, estimation and solution design. 5. Mentoring/code review: Yes, including guiding developers rather than simply replacing their implementation. 6. AI-assisted code review: Yes, I regularly use and review AI-generated implementations for architecture, security and maintainability. 7. Project-based work: Yes, comfortable with no guaranteed weekly hours. 8. Location: India (IST, UTC+5:30). Scenario: I'd explain the architectural concerns, demonstrate the better approach, have them refactor it, and review the result. My goal as a technical lead is to improve the developer while protecting the product. I'd be interested in discussing how I can contribute as your Fractional CTO/Technical Lead. Regards, Avinash Jain
$75 USD in 3 days
6.5
6.5

Hi, I hope you're doing well. I have carefully reviewed your project, Fractional CTO / Senior Full-Stack Technical Lead , and I'm confident I can deliver a high quality solution tailored to your requirements. I'm a Full Stack Developer with 4+ years of experience building websites, SaaS platforms, AI powered applications, automation tools, web scrapers, lead generation systems, and custom software. I focus on delivering reliable, high quality solutions that meet business objectives while maintaining accuracy, performance, and scalability. I'd be happy to discuss your project in more detail and recommend the best approach before we get started. I look forward to working with you. Thank you
$50 USD in 7 days
5.4
5.4

Hi, I’ve worked on full-stack projects where architecture, hands-on development, code review, and clear communication all had to work together, so I understand this role is about more than simply writing code. The key challenge is balancing delivery with maintainability when multiple developers and AI-assisted implementations are involved. I’d establish clear architecture and coding standards, review decisions against scalability/security/performance, and mentor developers rather than rewriting their work unnecessarily. I’m comfortable working project-by-project, contributing to technical discovery, designing APIs/data models, reviewing code, joining client discussions, and owning implementation where needed. For a working but poorly designed feature, I’d first understand the developer’s reasoning, explain the risks, propose a cleaner approach, and guide them through improving it. Best Regards, Fizza
$50 USD in 3 days
5.0
5.0

Hello there. I hope you are donig well. I have successfully led multiple full-stack projects, transforming client requirements into practical software solutions. My experience includes designing software architecture from scratch and mentoring junior developers to enhance their skills, ensuring high-quality outputs across the board. I understand the importance of strong technical leadership in a project-based role. I will effectively evaluate client requirements, make informed architecture decisions, and ensure the development process aligns with best practices, addressing any technical challenges that arise. I will provide high-quality, scalable, and maintainable solutions, focusing on effective communication and collaboration with your team. My approach emphasizes thorough code reviews and mentorship, fostering an environment of continuous improvement and learning among developers. Please feel free to reach out to me. I look forward to working with you. Best regards, Billy Bryan
$90 USD in 10 days
5.0
5.0

I've spent seven years building and scaling full-stack systems from the ground up, with the last four in technical leadership roles—architecting Django/Node.js APIs, React frontends, and PostgreSQL/MySQL schemas for production workloads. This is right in my wheelhouse. I'll lead the stack selection, model the domain, draft the API contracts, set up CI/CD, and pair with juniors to enforce clean boundaries in the codebase. I'll review AI-generated snippets the same way I review junior PRs: run the tests, run the code, explain the trade-offs, and push for maintainability over cleverness. I can start immediately. Thanks, Andrii.
$175 USD in 4 days
5.0
5.0

Hello! We can provide an external senior full-stack lead to support your client projects. 1. Are you open to working with an external contractor or team for these tasks? 2. Which tasks and technologies need to be covered first? — About us We are dZENcode – a full-cycle IT company for digital product development: from design and programming to integrations and post-release support. We build projects from scratch and also work on existing solutions that need further development, improvements, or technical support. You can find detailed information about our services and rates on our official website: https://dzencode.com. Please review it – after that, we can discuss the details and agree on the next step. ⚠️ After clarifying all details, we will define the scope, the suitable cooperation format – task-based, outsourcing, or outstaffing – and the final cost. Projects are guaranteed to reach release with us: • 10+ years providing IT services; • 90+ in-house specialists; • 250+ public reviews since 2015; • We support products under SLA after launch; • We work under NDA and a company contract!
$100 USD in 7 days
5.7
5.7

Based on your JD, here is my approach: 1. I’ll define the architecture and technical approach based on client requirements. 2. I’ll lead and handle full-stack development, APIs, integrations, and security. 3. I’ll review code, including AI assisted work, and mentor developers to improve quality and architecture. 4. I’ll collaborate with clients and the team to deliver scalable, maintainable solutions. I’m comfortable with project based work and technical leadership. Let’s connect to discuss the requirements and get started today.
$90 USD in 10 days
5.0
5.0

I hope you're doing well! My name is Nawal, and I bring over nine years of experience in Fractional CTO / Senior Full-Stack Technical Lead. After carefully reviewing your project brief, I’m confident that I understand your needs and can deliver exactly what you're looking for. Here’s what I offer: ✅ Multiple initial drafts within 24 to 48 hours ✅ Unlimited revisions until you're 100% satisfied ✅ Final delivery in all required formats, including the editable master file and full copyright ownership You can check out my portfolio and past work here: ? Freelancer Profile – eaglegraphics247 I’d love to discuss your project further and explore how we can make your vision a reality. Let me know a convenient time for a quick chat! Looking forward to working together. Best regards, Nawal
$70 USD in 1 day
4.8
4.8

Hello, "Fractional CTO / Senior Full-Stack Technical Lead" - you need someone who can make technical decisions and still ship the code. I have 3–5 years of software development experience, focused on full-stack web development with React, TypeScript, Node.js, REST APIs, databases, and software architecture. I can take a client requirement, turn it into a practical system design, then build or review the implementation with security, performance, and maintainability in mind. For junior or AI-assisted code, I would first understand why the implementation was chosen, identify the real risks, and explain a better approach with concrete code changes rather than simply replacing their work. I’m also comfortable joining technical client discussions and working project by project. I’m strongest with Node.js/TypeScript and React. I’m based in GMT+7 and can work with an agreed project schedule. No public portfolio or GitHub URL is available to provide here. What backend/frontend stack would you expect the first client project to use? Looking forward to working with you. Truong
$50 USD in 1 day
4.9
4.9

Hi there, I can help your agency turn client requirements into solid architecture, clean full-stack delivery, and calm technical leadership. I’ve spent the last 4 years solving exactly this type of problem, from shaping software architecture and database design to reviewing code, tightening APIs, and guiding developers toward maintainable implementations. I’m comfortable with Software Engineering, Full Stack Development, and Web Development, and I can step into discovery calls, explain tradeoffs clearly, and improve both new builds and AI-assisted code without ego. Best regards, Ian
$115 USD in 5 days
4.7
4.7

Hello I reviewed your Fractional CTO and Senior Full Stack Technical Lead project and it stood out because this role needs someone who can connect technical strategy with actual delivery and communicate clearly with both clients and engineering teams Problem Growing software teams often face technical decisions delivery risks communication gaps and unclear priorities when there is no senior technical person connecting business requirements with engineering execution Solution I can take ownership of client discovery technical discussions architecture decisions delivery planning escalations and hands on development I can work across React Angular Node.js TypeScript Python APIs databases cloud infrastructure and AI integrations while translating technical decisions into clear business outcomes I can also help with roadmap planning performance security scalability code reviews and engineering process improvements Result You will have a senior technical lead who can communicate confidently with stakeholders guide engineering decisions and contribute directly to building reliable scalable products while keeping delivery focused and practical A few questions What is the current technology stack of the products I would be supporting How many client accounts and engineering teams would I work with What level of involvement is expected in client discovery and executive calls Which AI and cloud technologies are currently part of your projects Thanks
$98 USD in 7 days
4.9
4.9

With my solid 9 years of experience in web development, I am highly adept at overseeing projects from start to finish. As an impeccable full-stack developer, skilled in Node.js, React.js and various other technologies your team works with, I have showcased my ability to design functional software/system architecture and handle front-end and back-end operations with ease. Building secure, scalable, high-performance solutions is a craft I have mastered with time. My expertise extends beyond technical know-how; my inclination towards effective leadership, mentoring and communication has enabled me to fulfill key responsibilities as a technical lead effectively. Your project description resonates deeply with my inclination towards leadership and collaboration. Throughout my career, I've extensively worked with teams comprising of designers, developers at different levels of expertise to build optimal solutions. My role as a tech lead has not only included reviewing codes and solving technical challenges but also fostering an environment where others can grow and learn. Lastly, while client meetings aren't foreign to me, I understand the importance of maintaining boundaries when it comes to direct communication with clients. Respecting your agency's established methods is something I am committed to. Being selected for this role would allow me to bring my comprehensive skill set on board while adhering to your values of humility, reliability and effective collaboration.
$100 USD in 7 days
5.1
5.1

Hello!! I understand you need a project-based Fractional CTO who can lead architecture, build full-stack solutions, review code, mentor developers, and communicate confidently with clients. • Which type of client projects will come first? • Which technology stack is currently your strongest? • How often would you expect technical leadership during projects? The role can be handled with a practical balance of architecture, hands-on development, code review, security, scalability, API design, and clear technical guidance. Junior developers can be supported through constructive reviews and explanations rather than simply replacing their work. Relevant experience with full-stack development, system architecture, technical leadership, mentoring, and AI-assisted code review makes this a strong fit. A reliable, collaborative approach will help your agency deliver quality projects while building a long-term technical foundation. Let us discuss your upcoming projects and collaboration model in chat. Best regards Farhin B
$100 USD in 10 days
4.7
4.7

The hardest part here isn't the tech stack, it's staying useful between unpredictable projects while keeping architecture decisions consistent across different client codebases. Day one I'd set up a lightweight decision log template and reusable starter configs for Django/Node/React so we're not reinventing auth patterns or database migrations every time a new project drops. I've built the full range you're describing, most recently a FastAPI + React travel planner with Claude integration and an 81-table ERP on Supabase with RLS. More at ffulb.com. Can start whenever the first project lands.
$84 USD in 5 days
4.8
4.8

Hello, this reads less like a feature build and more like a technical leadership gap around architecture, code ownership, and execution discipline across a Django and React stack. The real engineering risk is unclear system boundaries; without that, a senior lead gets pulled into patching symptoms instead of fixing delivery, reliability, and maintainability at the right layer. I've built several production systems where the job was to define the architecture, stabilize implementation patterns, and make the backend, frontend, and data model move as one system rather than as separate tickets. I usually structure roles like this by first separating product-critical paths, integration boundaries, and ownership lines across services, UI, and database concerns. That makes it easier to decide what should remain in the monolith, what needs service isolation, and where technical debt is actually slowing delivery. I design systems for long-term production use, with attention to observability, API contracts, migration safety, and team handoff. If useful, I can start by reviewing the current architecture and sketching a practical target-state with the highest-risk areas called out. Clifton
$100 USD in 7 days
4.6
4.6

Hi there, I understand you need a Senior Full-Stack Developer who can take on a fractional CTO role with a focus on technical leadership and architecture. My experience in full-stack development, particularly with Node.js, React, and various databases including PostgreSQL and MySQL, positions me well for this responsibility. I've not only led projects but also mentored junior developers, ensuring they grasp architectural principles and coding best practices, which is vital for this role. I'm very comfortable with client communication and have successfully managed technical discussions to ensure projects align with client needs. I look forward to the possibility of collaborating with your team on various projects. Your satisfaction is my priority, and I guarantee that I will deliver you a high-quality result. Regards, Ali
$50 USD in 1 day
4.4
4.4

Singapore, Japan
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