LJ App Solutions. LJ App Solutions builds custom business systems and MCP connectors for companies that have outgrown spreadsheets and bolted-together tools: portals, ops products, multi-role platforms, and agent access to your data. Also offers senior consulting for AWS hardening, SOC 2 technical reviews, and AI assessments. You own the code and the cloud accounts. Book a scope call or contact contact@ljappsolutions.com.
Selected work
Systems and sites we have shipped
Client engagements and products we own: proof of craft in both.
Testimonials
Clients on the work
Straight feedback from people who shipped with us: systems and sites alike.
“Juan has played a major role in the development of FacilityWISE, building new functionality from the ground up based on our requirements while also redesigning and improving existing systems. His work has covered the entire application, from frontend development and user experience to backend architecture, database management, and integrations. His technical knowledge and ability to turn complex requirements into working solutions have been invaluable to the project.”
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Book a 30-minute scope call
We confirm the package, list your workflows, MCP tools, site goals, or consulting needs in plain sentences, and send a written path: fixed scope for systems and Connector, or a time & materials estimate for marketing sites and consulting. Prefer email? contact@ljappsolutions.com
FAQ
Common questions
Straight answers about who we are, what we build, and how to get in touch.
What does LJ App Solutions build?
Custom business systems: software that runs workflows for your team or customers; Connector MCP servers so agents can use your data safely; plus marketing sites and senior consulting quoted time & materials. Fixed packages cover Pilot (up to three workflows), Product (up to six), Platform (up to ten), and Connector (up to eight MCP tools over one source).
What is a workflow?
A workflow is one role getting one result end to end: the screens, steps, and usual edge cases for that path. You should be able to finish the sentence “When ___ does ___, the system ___.” Sign-in and admin are shared foundation. Stuffing many features onto one page does not make them one workflow.
What is Connector?
Connector is a fixed-price MCP server build for teams that rely on Claude, Cursor, or ChatGPT and need agents to use one data source (an API, Google Sheets, PDFs, tickets, and similar) without a new website or portal. Scope is counted in tools over that source: “When the agent needs to ___, it calls ___ and gets ___.” Up to eight tools over one source, with auth, audit logging, deploy on infra you own, and a runbook. Extra sources are an add-on; customer-facing multi-tenant MCP is a custom quote.
What is an MCP tool?
A tool is one named action an agent can take against a source: fixed inputs, a clear return shape, and an explicit permission. “Search orders,” “get order by id,” and “create a draft note” are three tools. “Connect everything we have” is not a tool; it is several tools and often several sources. Auth, logging, and deploy count once for the Connector package.
What counts as a source?
A source is one place your agents need data from: a single API or database, a Google Sheet (or set of sheets treated as one workbook), a document collection you process (PDFs, exports), or a SaaS account with one credential boundary. Two CRMs, or a CRM plus a separate sheet warehouse, are two sources.
What is Consulting?
Consulting is senior engineering time & materials after a short discovery call and written estimate. Focus areas include AWS environment hardening, SOC 2 technical readiness and technical audit support, AI and coding-agent assessments, architecture and delivery reviews for existing products, and cloud cost and observability passes on AWS you already run. It is not a fixed product build (use Pilot or Connector for that) and we are not your auditor of record for formal certification.
How does payment work?
For fixed packages (systems and Connector): 10% non-refundable starts a one-week validation build, 60% is due before the main build continues, and 30% is due after final review. Nothing goes public until 100% is paid. Marketing sites and consulting are time & materials against a written estimate. Change orders are agreed in writing before work.
Who owns the code and infrastructure?
You do. Source, repositories, and cloud accounts are yours. We prefer deploying into an AWS account you own. Optional care plans keep systems and MCP servers healthy during business hours; your cloud bill stays separate.
Do you build marketing websites?
Yes. Marketing and brochure sites are a custom time & materials quote after a short discovery call, not a fixed package. Book a scope call and choose Marketing site, or email contact@ljappsolutions.com.
How can I start?
Book a 30-minute scope call on this site, or email contact@ljappsolutions.com with the workflows, MCP tools, site goals, or consulting needs you have in plain sentences. You will get a written path: fixed scope for systems or Connector, or a T&M estimate for marketing sites and consulting.
Contact
Get in touch
Prefer email over a call? Reach us directly. We read every message.