Overview We are seeking an experienced Senior Full-Stack Developer to help maintain and expand a growing insurance technology platform that simplifies the purchase and management of commercial property insurance. Our platform serves businesses and insurance providers through a modern client portal and marketplace via integrating various vendors APIs. We're looking for a developer who can take ownership of features across the entire stack, contribute to architectural decisions, and deliver high-quality code in a collaborative remote environment. Contract Length: 6–12+ months Engagement Type: Part-Time (with potential for FT) Location: Remote Preferred Regions: Canada, US Midwest, Southwest What You'll Do - Own feature development from front-end through back-end implementation - Design, build, test, and deploy new platform functionality - Troubleshoot and resolve bugs across the application stack - Integrate third-party systems using REST and SOAP APIs - Collaborate with the founder and development team to improve platform capabilities - Participate in code reviews and technical discussions - Help improve application performance, scalability, and reliability. Required Technical Skills Expert-level PHP Expert-level JavaScript Expert-level PostgreSQL Strong experience building and maintaining production web applications Excellent debugging and problem-solving skills Preferred Skills Symfony Framework Symfony API Platform React Redis Docker RabbitMQ CSS / modern front-end development Ideal Candidate - 3 or more years of full-stack development experience - Good understanding of modern software architecture and API design - Comfortable working independently with minimal supervision - Experience integrating external systems and third-party services - Experience working in distributed remote teams - Familiarity with commercial insurance, fintech, or other regulated industries is a plus. Technology Stack: PHP Symfony React PostgreSQL Redis RabbitMQ Docker REST APIs SOAP APIs Collaboration Tools GitHub Slack Modern remote collaboration workflows To Apply Please include: - A brief summary of your experience with PHP and Symfony. - Examples of applications you've built using React. - Your experience integrating SOAP and REST APIs. - Your experience with PostgreSQL performance optimization. - Your timezone and weekly availability. - Links to GitHub, portfolio projects, or code samples (if available).

We are looking for an experienced Full Stack Developer to help build a SaaS MVP from the ground up. The goal is to launch a clean, scalable, and production-ready MVP that includes user accounts, subscription billing, dashboard functionality, admin controls, backend APIs, and third-party integrations. This project is ideal for a developer who has experience building SaaS platforms, startup MVPs, customer dashboards, admin panels, secure authentication systems, payment integrations, and scalable backend architecture. The MVP should be built with a clean structure so it can be expanded after launch with more features, user roles, automation, analytics, and integrations. Main features needed: • User registration and login • Subscription-based user accounts • Customer dashboard • Admin dashboard • User and role management • Stripe subscription billing • Payment plans and billing portal • Secure backend APIs • Database setup and management • Email notifications • Basic analytics/reporting • Third-party API integrations • Responsive web application • Deployment to production • Documentation and handoff Required skills: • SaaS Development • MVP Development • Full Stack Development • React.js / Next.js • Node.js / Express.js • TypeScript / JavaScript • REST API Development • Stripe Integration • Subscription Billing • PostgreSQL / MongoDB • User Authentication • Admin Dashboard Development • API Integration • Cloud Deployment • Git / GitHub Budget: Fixed price: $10,000 Suggested milestones: Milestone 1: Project setup, database structure, authentication, and core backend APIs Milestone 2: Customer dashboard, user roles, and main MVP features Milestone 3: Stripe subscriptions, admin dashboard, email notifications, and API integrations Milestone 4: Testing, deployment, documentation, and final handoff We are looking for someone who can take ownership of the MVP, communicate clearly, suggest practical technical solutions, and deliver clean, scalable code. The first version does not need to be overloaded with unnecessary features, but it should be stable, professional, and ready for real users. To apply, please include: Similar SaaS or MVP projects you have built Your recommended tech stack for this project Your estimated timeline Your experience with Stripe subscriptions Your experience with dashboards and admin panels Please start your proposal with the word “SAAS” so we know you read the full post.

We are building a custom internal platform for our travel advisor network. This is not a website or a Webflow project. This is a production-grade full-stack application built in Next.js and TypeScript with MongoDB Atlas as the primary database and Airtable as the CRM and operations layer. The platform includes a role-based advisor dashboard, a super admin dashboard, a custom booking submission form, commission tracking and tier logic, five admin report types with CSV exports, secure invoice file storage, transactional email workflows, and integrations with Airtable, Webflow CMS, Mailgun, Cloudinary, and a private object storage service such as AWS S3 or Cloudflare R2. We have a detailed internal technical proposal covering architecture, phased delivery plan, data models, role and permission structure, milestone definitions, and cost modeling. You will receive the full document before any engagement begins. This is a fixed price milestone based engagement across five phases over approximately eight weeks. All source code, accounts, and assets are owned by Xullu throughout the project. Do not apply with a generic proposal. Your application must include a live production Next.js application you have built, your approach to Airtable API caching for high volume reporting, your approach to secure financial document storage with server side access control, and your fixed price broken down by milestone. Budget range is $10,000 to $14,000. We are not looking for the lowest rate. We are looking for the most qualified.

"We're migrating Fresh Start Now's core operations from Salesforce to a custom, on-premises platform. We need an experienced full-stack developer to build a secure web application that serves our nationwide bankruptcy automotive marketing business. Requirements: You'll design and build a database-backed website using SQL, HTML, and backend languages of your choice. The system must handle credit application intake, store up to thirty thousand applications with full search and retrieval, manage three hundred dealer files, and support multi-state user access with secure login authentication. You'll integrate third-party APIs including Zapier and Twilio for workflow automation and SMS notifications. The entire platform runs on our on-premises server with zero cloud dependency—you'll work with us on server architecture and deployment. We've already worked with Claude AI to design this system and have come very close in just one week. However, we lack the security expertise to ensure the platform is hardened against threats and vulnerabilities. You should have demonstrated experience with relational databases, API integrations, user authentication, secure coding practices, and building data-intensive applications that handle sensitive financial data.

We are a medically backed, pre-seed healthtech platform preparing for an immediate enterprise pilot deployment. Our core user interface, interactive data features, and content architecture are functionally built utilizing modern AI-assisted development tools. We are seeking a senior, hands-on engineer with specific healthtech deployment experience to serve as our Execution Contractor for an immediate hardening sprint. You will own the backend security architecture, external cloud infrastructure configuration, and technical compliance validation required to transition our high-fidelity MVP into a secure production environment. What You’ll Do Harden Backend Security: Transition frontend route guards into strict, server-side authentication and authorization boundaries across all data-access paths. Architect Secure Infrastructure: Migrate core data architectures out of staging environments and securely provision an external, HIPAA-compliant cloud database tier. Manage Vendor & Compliance Workflows: Audit our technical vendor stack to securely embed enterprise API protocols, ensuring strict data handling and compliance alignment across all integrated platforms. Validate & Sign-Off: Run edge-case testing and performance audits to completely secure data handling pipelines, delivering a technical go/no-go sign-off for our upcoming pilot cohort. The Technical Stack Frontend: React 18+, TypeScript Backend: Node.js, Express.js Database/ORM: PostgreSQL via Drizzle ORM Environment/Tooling: WebSockets, Enterprise AI APIs, Secure Cloud Infrastructure (AWS / Supabase) Who You Are A seasoned full-stack or backend engineer with a proven track record of successfully deploying applications into live clinical, medical, or heavily regulated environments. Deeply knowledgeable in server-side encryption, data pseudonymization, and secure cloud networking. Highly comfortable inheriting, auditing, and optimizing architectures built alongside AI-assisted development workflows. An execution-focused builder who thrives in high-velocity sprints and values absolute production discipline. To Apply: Please submit your proposal directly through Upwork with a brief summary of your healthtech deployment experience, specifically highlighting your experience with secure data pipelines, PostgreSQL, and HIPAA configurations.

I need a back office built into my WordPress website. The project involves creating a user-friendly interface for managing administrative tasks efficiently. The ideal candidate should have experience in WordPress development and back office systems. The goal is to enhance the website's functionality and streamline operations.

We're seeking an experienced developer or agency to create a premium, modern website for a subscription-based platform. The project involves integrating AI technologies with Next.js to enhance user experience. The ideal candidate will have a strong background in web development and a keen eye for design.

We are looking for an experienced full-stack developer with strong AI-assisted development skills to help us transform our existing payment administration web platform into a modern application. We operate a payment management/admin system and want to accelerate development using AI tools such as Cursor, Claude, ChatGPT, GitHub Copilot, or similar technologies. The goal is to rapidly build, improve, and scale our payment administration platform while maintaining high code quality and security standards.

About the Business I own Meet U @ The Net, an established beach volleyball league in Southern California. Website: https://meetuatthe.net The league currently runs multiple seasons per year, has strong player retention, and regularly reaches registration capacity. I am looking for a developer or small team to help modernize the business systems while providing documentation and knowledge transfer so I can eventually manage and improve the platform myself. This is not a one-time project. I intend to build the platform in phases over multiple seasons. Phase 1 Goals CRM Foundation Current data exists across: Excel Airtable Google Sheets The goal is to consolidate historical league data into a single CRM/database. Examples: Players Teams Seasons Registrations Waitlists Payments Participation history Website Rebuild Build a modern website focused on: Registrations League information Schedules Standings FAQ Mobile responsiveness SEO foundation AEO foundation Registration System Support: Individual registrations Team registrations Waitlists Coupon codes Discount codes Payment tracking Waiver System Requirements: Team captains can register teams Individual players must create their own profile Individual players must sign their own waiver Waiver tracking and status management Knowledge Transfer (Required) I do not want a black-box system. I want: Written documentation Loom walkthrough videos Live walkthrough sessions Ability to ask questions after launch The goal is to learn how the system works while it is being built. Future Phases (Not Part of Phase 1) Future projects may include: Scheduling tools Referee score entry portal Automatic standings Sponsorship CRM AI features Mobile applications The initial focus is building a strong foundation. Preferred Technologies Open to recommendations. Currently interested in: Next.js Supabase OpenAI GitHub Budget Approximately: $5,000 – $7,000 for Phase 1 Future phases expected if Phase 1 is successful. Looking For Full-stack developer or small team CRM/database experience SaaS experience Strong communication Documentation-focused Comfortable working with non-technical founders Please send: Relevant projects Technologies used Availability Pricing model Examples of documentation or client training

Project Overview We are seeking an experienced React developer to complete and enhance an existing web-based title and real estate document management application. The software is approximately 80% complete and is currently deployed and operational. The application is used to manage title search orders, enter title data, track chain of title information, and generate real estate-related documents. We are looking for a developer who can review the existing codebase, understand the current architecture, and complete the remaining development tasks. Current Technology - Existing React-based web application - Source code maintained in GitHub - AWS-hosted deployment - Existing database and user interface already functioning Scope of Work 1. User Interface Enhancements - Add new data entry fields throughout the application - Modify existing forms and layouts - Improve usability and workflow efficiency - Ensure data validation and proper field formatting 2. Title Data Management - Enhance title search and chain-of-title data entry screens - Support additional title-related information fields - Maintain automatic organization and sorting of title records 3. Dynamic Document Assembly - Complete the document generation system - Generate Microsoft Word documents from entered data - Populate templates with user-entered information - Conditionally include or exclude sections based on available data - Support dynamic chain-of-title sections (for example, if there are 9 title transfers, generate 9 sections instead of a fixed number) 4. Mapping Features - Complete mapping functionality - Display property-related mapping information - Integrate mapping data into the workflow where appropriate Ideal Candidate - Strong React experience - Experience working with existing codebases - Experience with AWS deployments - Experience with document generation and template systems - Ability to understand business workflows and recommend improvements - Strong communication skills Deliverables - Review existing application and provide assessment - Complete outstanding features - Test all functionality - Deploy updates to production environment - Provide documentation for future maintenance To Apply Please provide: 1. Relevant React projects you have completed 2. Experience working with AWS 3. Experience with dynamic document generation or template systems 4. Estimated availability 5. Your approach to taking over and completing an existing application We are looking for a long-term relationship with a developer who can continue improving the platform after the initial project is completed.