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I have a pre-launch adult fiction web app which writes adult type stories. Nothing is live yet. No users, no revenue, no traffic. I am looking for one engineer to take it from where it is to a working production launch. The stack: React 18, TypeScript, Vite and Tailwind on the front end (originally built in Bolt). Supabase on the back end, meaning Postgres, auth, private storage, Edge Functions, and RLS on every table. The app takes a user prompt and generates a text story, plus audio narration. I have a complete engineering spec in a single file, written to be built from directly. It covers the schema, the phase by phase build order, API contracts, error handling, rate limits, and what done looks like for each phase. I have already audited the repo against that spec, so the gaps are known and written down. The work, in order: Schema reconciliation. Stories currently store all episodes in one jsonb column. The spec calls for a normalized model with one row per version and one active version per episode slot, so continuations and revisions behave correctly. This comes first because everything else sits on top of it. Generation pipeline. All text and audio generation is async and job based, through a single polling endpoint. Text generation runs on a specific open model served through Featherless (flat monthly rate, OpenAI compatible API). Audio narration runs through Fish Audio's TTS API, billed per character. Both API keys and endpoint details are provided. Neither is wired up yet. Subscriptions and entitlements. Tiered allotments, atomic credit spend, trial handling, a shared add on pool, and entitlement versioning so a future pricing change does not retroactively change existing subscribers. Parts of this exist and need to be finished to spec. Launch security. RLS verified end to end, rate limiting, account deletion, moderation logging, and an anonymous first story flow that cannot leak data across users. What I need from you: Real Postgres depth. Migrations, RLS policies, and RPCs you can write and defend, not just familiarity with the Supabase dashboard. TypeScript that holds up. Typed API responses, consistent error handling, no any scattered through the services. Comfort integrating third party LLM and TTS APIs, including async job handling and polling, not just calling OpenAI directly. Willingness to push back when the spec is wrong. It has been through two rounds of outside review and got better both times. Comfort working on an 18+ platform. The content is explicit adult fiction, not extreme, and there is a content classifier with hard blocks built into the design.
Project ID: 40641289
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142 freelancers are bidding on average $33 USD/hour for this job

Hi — Elias here from Miami. I see you’re in the final stages of developing your adult-fiction web application with Supabase and PostgreSQL. It sounds like you’re aiming for a robust backend to support your features and user interactions. The real technical challenge here typically involves ensuring scalability and maintainability. What usually matters most is the API's reliability as user demand grows. A common issue in systems like this is managing data efficiently while keeping performance optimal. The tricky part is often integrating various features without overcomplicating the workflow. I would approach the system by structuring the database with clear relationships and indexing strategies, ensuring the API responds quickly and can handle future expansions. By focusing on clean, maintainable code, we can prevent potential bottlenecks. I’ve worked on similar platforms where I optimized backend processes and improved database interactions, resulting in a smoother user experience. A few questions to better understand the scope: Q1 – What specific features are you looking to finalize in the backend? Q2 – Are there any existing integrations we need to consider? Q3 – How do you envision the user roles and permissions being structured? Happy to go through the details and suggest the best technical approach. Looking forward to hearing from you.
$50 USD in 10 days
7.9
7.9

Hello!, This is James from Hollywood... I read your project description carefully and understand you need backend finalization for a nearly-finished adult-fiction web app built with Supabase/PostgreSQL, TypeScript, and API work. What stands out to me is that the core app is already in place, so the priority now is making the backend solid, clean, and reliable without breaking what works. I’ve got about 15 years of experience with backend development, PostgreSQL, Supabase, TypeScript/Node, API development, testing, Git, security, and AI integrations. I’m very detail-focused, and on projects like this I always pay close attention to schema design, endpoint behavior, and edge cases so the final result feels finished, not rushed. My approach would be: 1) review the existing database, APIs, and code structure 2) identify missing pieces, bugs, and weak spots 3) finalize and clean up backend logic carefully 4) test everything and make sure the flow is stable Could you please clarify the following questions to help me better understand the project? 1) Which parts are still unfinished, database logic, API endpoints, auth, or AI features? 2) Are there any specific bugs or behaviors you want fixed first? 3) Do you have an existing test/deploy workflow, or should I help improve that too? I’ve done similar work on a TypeScript/Supabase booking app, a PostgreSQL content platform, an AI-assisted dashboard, and a custom API backend for a small SaaS tool.
$50 USD in 7 days
6.9
6.9

Hi! This is something we can handle without problem. Before diving in, one thing that would really shape the scope: are there specific new features already defined that you want added, or is the priority right now to stabilize what's there and we figure out the roadmap as we go? We work with Supabase, PostgreSQL and TypeScript regularly, so the stack is familiar. We'd start with a full read of the repo and a short written assessment — security rules, query patterns, service layer — before touching anything, so there are no surprises mid-way. Looking forward to hearing more about where things stand. Gustavo & the DoTheCode team
$45 USD in 25 days
6.6
6.6

As a leader of a multidisciplinary team with deep experience in full-stack development, data architecture, and cloud deployment, I believe I'm an excellent fit for your project. My proficiency with backend databases and APIs is not only limited to familiarity with the Supabase dashboard but extends to writing effective Postgres migrations, RLS policies and RPCs for fully optimized performance. Additionally, my systematic yet adaptable approach aligns perfectly with your project's requirement of pushing back when necessary to rectify any potential gaps in the existing spec. We're committed to building production-ready systems that are scalable, efficient, and properly documented. Working closely with my team members at MHTechFusion, we've honed our skills in real-time dashboards, data visualization systems where security is of paramount importance. Not only do we bring technical prowess to the table but also a unique and open-minded perspective to adult content platforms. We comprehend the significance of your content classifier and design entailing hard blocks while understanding it is still crucial to maintain both front-end integrity & amicable user experience. All-in-all, if chosen for this project, I'll ensure superior development that not just meets your speciations but exceeds your expectations at every stage of production!
$50 USD in 40 days
6.4
6.4

I am an experienced backend developer specializing in Supabase, PostgreSQL, and TypeScript, equipped to finalize your adult-fiction web app for production. My extensive work with custom API endpoints and security ensures I can review and fortify your architecture to professional standards. My expertise lies in resolving database issues, refining RLS security, and enhancing API reliability. I have tackled intermittent errors and have successfully integrated new features without disrupting existing functionalities in similar environments. My past projects leveraging subscription logic and AI integration underscore my capacity to handle the complexities outlined in your project, aligning with your key acceptance criteria. I am keen to discuss how I can efficiently clean up and extend your TypeScript structure while maintaining production-readiness. Could we schedule a call to explore the specifics? I am ready to advance your project with precision and security.
$25 USD in 40 days
5.9
5.9

To ensure your adult-fiction web application is production-ready, I will focus on resolving the intermittent database errors and improving API reliability, while extending features seamlessly. My strong capabilities in TypeScript and handling database integration errors will be critical in refining your existing architecture, tightening security, and ensuring consistent API responses. I specialize in TypeScript, PostgreSQL, and API development, with a proven track record of maintaining a 4.9-star rating across 200 client reviews and completing 220 projects. What specific new features do you have in mind for this integration?
$40 USD in 10 days
5.4
5.4

Hi, I’d start with the schema reconciliation and lock down the versioning model before touching generation or billing, because continuations, revisions, entitlements, and RLS all depend on that data model being correct. From there I’d build the text/audio pipeline as explicit async jobs with typed polling responses and idempotent state transitions. I’ve built production SaaS platforms with React, TypeScript, PostgreSQL, secure multi-tenant data models, background processing, and LLM integrations. Let’s talk over chat and discuss it over a call.
$25 USD in 20 days
5.1
5.1

I can help productionize the existing Supabase/PostgreSQL + TypeScript backend by hardening RLS, stabilizing database queries, and making API behavior consistent. Focus areas: - Resolve intermittent DB errors by tracing failing queries, tightening indexes/transactions, and ensuring queries respect Supabase RLS boundaries. - Audit and refine RLS/security policies to prevent privilege gaps while keeping subscription/auth flows working reliably. - Standardize custom API endpoints with strict TypeScript typings, uniform error shapes, and predictable response contracts. - Clean up TypeScript services (structure, dependency flow, and edge-case handling) so new features can slot in without breaking existing routes. - Add/verify smoke test coverage for subscriptions, authentication, and the early AI call paths to ensure deploy readiness. Workflow: concise Git-based PRs, quick iteration loops, and pragmatic fixes aimed at getting the checklist to green before launch.
$25 USD in 46 days
5.0
5.0

Your brief is clear, and that helps a lot with backend work like this. The mix of intermittent DB issues, API consistency problems, RLS safety, and TypeScript cleanup is exactly the kind of production-readiness pass I can help with. I’d begin by auditing the existing flows, isolating the unstable queries/endpoints, and then integrating new work in a way that stays maintainable. Happy to collaborate via Git and keep updates concise as we move through each PR.
$25 USD in 40 days
4.6
4.6

Hi, Having worked in the technology industry for over 19+ years, my team at IT Flex Solutions India offers you unparalleled expertise to tackle your Backend Finalization & Features Database and API work. Our deep understanding of an extensive range of technologies from AI integration to backend development will prove invaluable as we dive into your existing codebase and tighten any loose security rules. With 483+ successful projects under our belt, our approach towards problem-solving is tried and tested. For your project, we prioritize efficient functionalities that don't compromise on the existing structure, enabling smooth integration of new features. This ensures a solid foundation that can handle your adult-fiction web application's needs without breaking or compromising on the user experience. One area where we particularly excel is in resolving database errors and API malfunctions swiftly - a nagging issue you need eliminated before deployment. Furthermore, having developed custom software solutions tailored to specific businesses, we possess the aptitude for ensuring a future-proof and production-ready backend for your unique project. Above all, client satisfaction is paramount to us -- which means we'll work tirelessly on Git sharing concise PRs with quick iterations until all aspects are aligned with your green checklist. Thanks, SBM
$30 USD in 40 days
5.4
5.4

Dear , 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 Software Testing, PostgreSQL, Software Development, Backend Development, Version Control Git, Security, Database Management, API Development, Supabase, AI Integration 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.
$30 USD in 5 days
6.8
6.8

Your project also calls for integrating third-party APIs like Featherless and Fish Audio's TTS API into an async-based system - this task suits my competency well. I’m experienced in integrating external APIs into job-based components, using resilient approaches such as async handling and polling. Lastly, as you mentioned the importance of actively challenging the engineering spec where necessary, I believe in being an active participant within a project rather than a mere implementer. My track record of improving project specifics through constructive feedback speaks for itself. If awarded this project, I'll commit to professionalism, timely updates and robust security measures to ensure the integrity of your adult fiction platform. Let's discuss further how we can bring your idea to life!
$50 USD in 40 days
4.5
4.5

Supabase service-role calls bypass RLS, so API context must be traced before tightening policies. I’d start by reproducing the intermittent database and API failures, then map authentication, subscriptions, and AI call paths against the current RLS policies. From there, I’d fix unsafe query paths, clean up the TypeScript services around consistent typed responses and errors, and add new functionality through small, reviewable PRs without disrupting existing flows. I’m comfortable working with the platform’s 18+ content. Are the database errors appearing during normal authenticated requests, subscription processing, or both?
$30 USD in 40 days
4.2
4.2

The schema reconciliation is the part I’d tackle first, because getting versioning and episode state right will make the generation and entitlement work much safer. I’ve worked with TypeScript backends, PostgreSQL, Supabase, RLS, migrations, RPCs and API integrations, including async job flows and third-party AI services. I’m comfortable working from a detailed engineering spec while challenging implementation decisions where they create security or data-integrity issues. I’d start by auditing the existing schema against the spec, implement the normalized model and migrations, then build the job pipeline and entitlements on top of it. Are the current migrations tracked in Git? Which parts of the generation pipeline are already stubbed? Do you have automated tests for the existing RLS policies? Juan Pablo
$30 USD in 40 days
4.3
4.3

I've built and hardened Supabase/PostgreSQL backends with RLS policies, custom API endpoints, and subscription logic before, so this is right in my wheelhouse. I'll audit the current Supabase RLS policies, trace intermittent database errors through Postgres logs, and tighten any misconfigured policies or missing row-level constraints. Then I'll refactor the TypeScript services to enforce strict TypeScript typing, add centralized error handling for API malfunctions, and ensure subscriptions and AI hooks integrate cleanly without breaking existing flows. Once the foundation is solid, I'll extend functionality with new endpoints while maintaining consistency across the API layer. Smoke tests for auth, subscriptions, and AI will run against Supabase functions and Postgres triggers to confirm stability before deployment. I can start immediately. Thanks, Andrii
$37.50 USD in 40 days
4.0
4.0

✅✅✅✅✅ Only Perfection & Even 99.99% Isn't Enough For Me. ✅✅✅✅✅ Hi there, As a seasoned Full-Stack developer, I'm confident that my skills and experience make me an ideal fit for your backend finalization and features project. I have been working with software implementations for diverse contexts, including healthcare systems, which demand a meticulous understanding of data management, security protocols, and scalable structures. With in-depth knowledge in Database Management and Software Development, I will proficiently navigate your React 18, TypeScript, Vite and Tailwind frontend architecture built in Bolt. A noteworthy aspect of my work is prioritizing long-term success. This property of mine marries well with your project's phase-by-phase build order strategy specified in the engineering spec. It guarantees that my work maintains its momentum while sustaining high-quality output — just as you require. Given our aligned philosophies and my extensive expertise across API Development, Backend Development and Database Management — I am eager to contribute to taking your adult fiction web app from ideation stage to a working production launch. Let's create something impactful together!
$25 USD in 40 days
4.2
4.2

Hi, your backend is close, but it still needs the kind of hardening that makes a Supabase app safe to ship. I can see the priority is not just adding features, but making sure database access, API behavior, and TypeScript services are stable under production traffic. I’ve worked on Supabase/PostgreSQL backends with RLS, custom endpoints, subscriptions, and typed service layers, and I’m comfortable tightening security rules without breaking existing flows. My approach would be to trace the intermittent database and API issues first, then clean up the most fragile queries, validate RLS paths, and normalize error handling across the endpoints. From there, I’d slot new feature work into the current TypeScript structure and run focused smoke tests around auth, subscriptions, and AI calls. If you’d like, I’m ready to review the repo and start with the highest-risk issues. Best regards, Gabriel
$25 USD in 28 days
4.1
4.1

The bottleneck is intermittent database errors and API malfunctions affecting production readiness. The root cause lies in incomplete integration of Supabase RLS security and inconsistent TypeScript service implementation. I will audit database queries against RLS policies, tighten security rules, and refactor API endpoints for consistent typing and error handling. My interventions will include modular feature additions that align with the current TypeScript architecture and thorough smoke testing for subscriptions, authentication, and AI integrations. Production stability will be confirmed through monitored smoke tests and error-free API responses in a staging environment prior to launch. Could you clarify which new features are highest priority for initial integration to align with production goals?
$25 USD in 29 days
4.0
4.0

Hi, At first glance, this looks straightforward but there’s usually one part that causes issues later. Happy to share a quick plan if you're open to it. Regards, Rajesh
$38 USD in 40 days
2.9
2.9

HI There — This is a production-readiness job where the database, async generation pipeline, entitlements, and security all need to work together correctly before launch. I’d follow your existing engineering spec phase-by-phase, starting with the JSONB → normalized Postgres schema reconciliation, then building the job-based text/audio pipeline, subscription entitlements, and launch security. The focus will be on defensible migrations/RLS/RPCs, typed TypeScript services, consistent error handling, polling-based API workflows, atomic credit usage, and preventing cross-user data leakage. I’ll also validate each phase against your stated acceptance criteria rather than treating the existing implementation as correct by default. We operate on US hours and treat the project like a dedicated full-time engagement, backed by our 100% satisfaction and performance guarantee. Open the chat and I’ll share the proposed implementation plan, review workflow, and relevant portfolio samples for this production launch. Waqas Ahmed Full-Service Software House | Web/App Development, Design, SEO & Content Writing
$38 USD in 40 days
3.1
3.1

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