Full-stack Developer to build a new SaaS Product with tech founders

@rajat07me

Building from zero with a technical founder usually succeeds or fails on one thing: how quickly ideas can turn into stable, shippable features without the codebase becoming messy by month two. That mix of speed, ownership, and clean architecture is the part I fit well, especially when the developer is expected to contribute to feature breakdowns, API design, and deployment rather than just close tickets. I’ve worked on product-style builds involving .NET/C#, Angular, PostgreSQL schema design, and AWS environments where the goal was fast iteration with sensible engineering decisions. The useful part in startup work is not just writing code, but keeping backend logic maintainable, APIs clean, and releases predictable while product direction is still evolving. My availability is solid for active collaboration, reviews, and iterative delivery. - Do you already have the initial product spec or wireframes, or would the first step be shaping the MVP together? - Which AWS services are definitely in scope for v1: EC2/RDS only, or also Lambda/S3 and related automation? - Is your immediate need one core developer for the MVP, or someone to stay through post-launch iteration as well?

@Microlent

Hello, I am Dr. Rajesh Rolen, PhD in Computer Science & Engineering, with experience of over 20+ years in AngularJS, API Development, Software Development, Website Design, Angular, NoSQL Couch & Mongo, PostgreSQL, .NET, Full Stack Development, Node.js As a preferred freelancer in the top 1%, I have done 400+ projects here on freelancer.com, I have 4.9 ratings out of 5 on average, which showcases my quality of work and timely delivery. Key Highlights: - Free Hosting Support on the Cloud or any desired platform. - Free 3 months of post-delivery support to ensure that our client doesn’t face any challenges after the launch of the project. - Free Dedicated tester on projects to ensure quality delivery, so clients don’t need to act as a tester. - 10+ Years experience UI/UX team to ensure intuitive UI. Portfolio: https://www.freelancer.com/u/Microlent Please open the chat and send me a message, so we can have a more detailed discussion about the project to give you the project timeline and cost. Thank you for considering my services. I look forward to engaging in a productive conversation and understanding how I can be of assistance in bringing your project to life. Regards Rajesh Rolen

@diektech

Hello, I'm Elias, a Miami-based senior software engineer with 20 years of experience in building robust SaaS products. I understand your goal is to develop a new SaaS solution that meets the unique needs of your users while ensuring a seamless experience. I've successfully built similar systems, focusing on secure architecture, responsive UI, and scalability. My approach to this project would include the following phases: 1) Understand the business workflow and technical requirements. 2) Design the user experience and system architecture. 3) Develop the core features and necessary integrations. 4) Conduct thorough testing to ensure everything functions as intended. 5) Deploy the application and offer post-launch support. Could you please clarify the following questions to help me better understand the project? 1) What specific user roles and permissions should be included in the application? 2) Are there any existing systems or APIs that need to be integrated into this SaaS product? 3) What are the primary edge cases that we should consider during development? I've built similar systems before, and while most of these projects were completed under NDA, I’d be happy to discuss the architecture and technical decisions I made in detail. Additionally, I can ensure a maintainable codebase that supports future growth and enhancements.

@shivmirthyusl

Hi, As an experienced full-stack developer, I have been delivering successful web and mobile solutions for over 19 years, a journey that has seen us complete an impressive 483+ projects. Our mastery of diverse technologies including .NET, PostgreSQL, Angular, and AWS fits directly into your project needs. Can we discuss and confirm the requirements? Thanks, SBM

@raheel2k29

Hello, I’m interested in contributing to your early-stage SaaS product and working directly with a technical founder in a fast, hands-on environment. The end-to-end scope across .NET, Angular, PostgreSQL, and AWS is well aligned with building maintainable product foundations while iterating quickly. I can support feature planning, API design, relational data modeling, implementation, code reviews, and deployment workflows. A useful improvement would be establishing lightweight observability and CI/CD from the first release, helping the team detect issues early without slowing development. I value clear communication, practical architecture, and ownership from idea through production. I’m available to discuss the product roadmap, collaboration rhythm, and how I can contribute effectively from the outset. Regards Muhammad

@installerpoint

Hello, Your founder-led, fast-iteration approach is compelling. I can contribute to building a SaaS product with clean .NET APIs, Angular features, PostgreSQL data design, and practical AWS deployment, while keeping architecture maintainable and focused on shipping value. I appreciate the hands-on collaboration described, feature planning, code reviews, and rapid feedback are ideal for shaping a strong product foundation. I’m ready to support thoughtful MVP decisions and improve observability early so product feedback can guide priorities confidently. Check out my portfolio here:- https://www.freelancer.com/u/installerpoint Best Regards, Muhammad Adeel

@ykarora26

With extensive experience in .NET and Angular, along with a solid understanding of PostgreSQL, I'm well-equipped to collaborate closely with you on your SaaS project. Could you provide more insights into the specific user pain points we aim to address with this product? Regards, Yogesh Kumar

@ranjika08

Early SaaS work needs someone who can ship quickly without treating every feature like an enterprise committee decision. Since you’re coding alongside the developer and iterating directly, the real value here is having someone who can move from discussion to implementation fast while still keeping the .NET backend, Angular frontend, and database structure clean enough to scale. I’ve handled full-stack product development where PostgreSQL design, API structure, and AWS deployment all had to work together from the start, not be patched later. That kind of setup suits founder-led builds well because decisions happen quickly, feedback loops are short, and the code has to stay practical rather than overbuilt. I can offer steady availability for startup-style collaboration and direct iteration. - Do you already have authentication, billing, and user roles mapped out for the MVP, or is that still being defined? - Will the first release be a single-tenant MVP or something designed as multi-tenant from day one? - Are you expecting fixed weekly deliverables, or more fluid task planning based on feature priority?

@tangramua

Hello,   We carefully studied the description of your project and we can confirm that we understand your needs and are also interested in your project. Our team has the necessary resources to start your project as soon as possible and complete it in a very short time.   We are 25 years in this business and our technical specialists have strong experience in .NET, Website Design, NoSQL Couch & Mongo, Node.js, PostgreSQL, Software Development, AngularJS, Full Stack Development, Angular, API Development and other technologies relevant to your project.   Please, review our profile https://www.freelancer.com/u/tangramua where you can find detailed information about our company, our portfolio, and the client's recent reviews.   Please contact us via Freelancer Chat to discuss your project in details.    Best regards, Sales department Tangram Canada Inc.     

@sabaehsan

Greetings, I’m excited about the opportunity to work closely with you as a Full-Stack Developer on your new SaaS product. It sounds like you’re looking for someone who can take ownership and be hands-on in building features using .NET and Angular, while also handling the backend with PostgreSQL and AWS. My approach would involve collaborating directly with you to design and implement solutions that address real user needs, ensuring we build a product that is both functional and scalable. With solid experience in .NET and Angular, I’ve worked on various projects that required quick iterations and clean API designs. I’m comfortable with PostgreSQL for optimizing database structures and have practical experience deploying services on AWS. I thrive in startup environments where communication and speed are key to success. Best regards, Saba Ehsan

@customizedata

I’m a .NET developer with 15+ years of experience, working since 2010 and building ERP-level and business applications end-to-end. My hourly rate is between $15 to $25 depending upon whether it is a short term or long term project. I have strong experience with C#, .NET, APIs, PostgreSQL/SQL, and Angular. I’ve also built Angular frontends using PrimeNG and worked on projects where clean architecture, performance, and maintainability were important. Your startup-style approach sounds like a good fit for me. I’m comfortable working directly with founders, taking ownership of features, discussing architecture, and iterating quickly rather than just following tickets. I’d be happy to help build this product from the ground up. Looking forward to have a chat with you to discuss further.

@AneesaIBA

Hello, I have carefully read your project description and understand that you need a full-stack developer to work directly with a technical founder on a new SaaS product using .NET, Angular, PostgreSQL, and AWS. I have experience building database-driven web applications, APIs, authentication systems, dashboards, and complex business workflows. I can work across frontend and backend development, create clean APIs, design relational database structures, and keep the architecture maintainable without unnecessary complexity. I am comfortable working with C#/.NET, Angular, PostgreSQL, and AWS services for application deployment and infrastructure. I can also contribute to architecture discussions, feature planning, code reviews, debugging, and rapid iteration as the product evolves. I understand this is a hands-on startup environment where ownership and problem-solving are important. I prefer working closely with the founder, understanding the purpose behind each feature, breaking requirements into practical tasks, and delivering tested functionality through short development cycles. Before confirming the engagement, I would like to review the current product stage, initial priorities, existing repository, AWS setup, and development workflow. Once these details are clear, I can provide accurate availability, rate, and engagement terms. Best Regards, Rabia Shaikh

@TechTimes

Hello, Yes, we can help you with this project. I have few questions related to your project specification. Lets discuss over chat. Our specialty:- Angular, React, Nodejs, WordPress, PHP, Laravel, CodeIgniter, CakePHP, MySQL, Mongodb, PostgreSQL, Mobile App for IOS and Android, HTML5, Bootstrap, JavaScript, etc... Why choose us: 1. Over 130 projects & 5 out of 5 star rating 2. No bad review yet 3. Most importantly 39% repeat hire rate [It's hard to find that kind of percentage here in freelancer] Thank you Liza

@onkarkulkarni8

Hi, I checked your "Full-stack Developer to build a new SaaS Product with tech founders" project description, it looks like the focus is on delivering a clean, responsive website that works well across all devices. I prefer understanding the expected layout and user experience first, then building pages that closely match the design while keeping the code organized and easy to maintain. Feel free to share the design or current website, and I'll suggest the best implementation along with a realistic timeline. Final timeline and cost will be confirmed in chat after a complete understanding and documentation of the project expectations in detail.

@AITSoft

Hi, I understand you need a full-stack developer to help turn a SaaS idea into a working product through fast, practical iterations. I would focus on clear feature planning, reliable APIs, clean database structures, and simple architecture that can grow with the product. My background in Software Development, Website Design, Node.js, and AngularJS fits the product-building side of this role, and I can work closely with the founder through reviews, discussions, and quick feedback. I would first align on the MVP, user flows, coding standards, deployment process, and priority features before building each part end to end. Which MVP features, user roles, and AWS deployment setup should be included in the first development milestone? I value readable code, steady communication, and solving the real product problem without adding unnecessary complexity.

@starttechno

I’d start by mapping the first user journey into an Angular workflow, a .NET API boundary, and a PostgreSQL schema so we can ship useful slices instead of building a large backlog upfront. I’m available to begin immediately and work in the tight planning, code-review, and iteration loop you described. Within 30 days, you’ll have the initial deployable SaaS MVP foundation: Angular application, .NET backend APIs, PostgreSQL/RDS data layer, authentication, and AWS deployment setup. I’ll keep the architecture practical—clean domain boundaries, migrations, and AWS services sized for the product’s current stage rather than over-engineered. I’ve built ClearAgent, a multi-tenant customs-clearing SaaS that runs a clearing agency’s live operation end to end. Do you already have the first MVP user flow defined, or should we shape it together from the initial problem statement? Muhammad Saad

@kanika6665

Hi, I read your brief for an early-stage SaaS built end-to-end with fast iterations, clean APIs, and direct founder collaboration. I’m KANIKA, and I’ve shipped production web apps with a startup-mode mindset, designing maintainable backends, clear API contracts, and solid database schemas, while keeping delivery tight. Even though your stack is .NET/Angular/PostgreSQL/AWS, I can still contribute strongly to the product foundation: I’ll help structure the service boundaries, define API-first feature slices, and design the data model/queries for performance as you iterate. I’ll also support deployment workflows on AWS-style environments and keep code reviews focused on clarity and speed. Next step: share your current repo/plan and MVP feature list, and I’ll propose a 2-3 sprint implementation plan with risks and estimates, Encouraging question: What MVP features and architecture decisions (auth, billing, data model) are already chosen for the first release?. Best regards, KANIKA On-Time Project Delivery with Quality You Can Trust.

@Hubready

Hello!, I am a US-based senior software engineer, and this is exactly the kind of SaaS build where getting the architecture right early saves a lot of pain later. I can help turn your idea into a clean, scalable MVP that is built to grow. My approach is simple: 1. Clarify the core user flow and MVP scope 2. Define the backend architecture, API structure, and data model 3. Build frontend and backend in parallel 4. Test, refine, and ship a stable first release I’ve built production systems with Node.js, .NET, PostgreSQL, MongoDB, and API-heavy platforms, and I’m used to working with founders who need someone that pays attention to the details and thinks beyond just “getting it done.” Relevant work includes: - A SaaS analytics dashboard for a logistics startup - A workflow automation platform for a service business - A membership and billing portal for a niche software tool - An internal operations app for a fintech team Could you please clarify the following questions to help me better understand the project? 1. What are the must-have MVP features for the first release? 2. Do you already have wireframes, branding, or product specs, or should I help shape them? 3. Is there a preferred stack split between .NET, Node.js, Angular, and PostgreSQL, or should I recommend the best setup? If you want someone who will treat this like a real product, I’d be glad to chat. James Zappi

@Joya1996

The strongest part of your brief is that this is not a handoff project — it’s a founder-led product build where the developer needs to think through features, architecture, and deployment in real time. That usually requires someone who is comfortable balancing speed with maintainability, especially when .NET, Angular, PostgreSQL, and AWS all need to move together instead of in isolation. I’ve supported builds where backend APIs, relational schema decisions, and cloud deployment had to be planned with the product itself, not after it. In startup-mode work, that matters because small early shortcuts in data structure or service design often become expensive later, so I prefer to build lean but correctly. I’m available for active collaboration and quick turnaround on feature iterations. - Is there already an existing repo and environment setup, or would this start from architecture and project scaffolding? - What does “real product into users’ hands” mean for your first milestone: private alpha, beta, or public MVP? - Are there any non-negotiables around AWS architecture, CI/CD, or hosting cost targets?