FULL-STACK DEVELOPER → AI ENGINEER
Jonathan Llaneras — a full-stack developer in the Tampa area with ~7 years building product, APIs, and data-heavy systems, now pointed at AI engineering.
01 / ABOUT
I'm a self-taught developer with around 7 years of experience analyzing, designing, building, and integrating front-end and back-end applications. My work has ranged from CRM product development to API integrations, reporting systems, Windows applications, and database-heavy business software.
I enjoy bridging the gap between technical implementation and product direction, helping teams move from ideas and requirements to stable, practical software that users can rely on. I've also managed teams and cross-functional collaboration, helping keep developers, marketers, and stakeholders aligned around execution.
FOCUS
CERTIFICATIONS
EDUCATION
B.A.S. in Information Technology — University of South Florida (in progress)
Computer Programming — Hillsborough Community College
BEYOND WORK
Outside of software, I enjoy video games and exploring how game engines create memorable interactive experiences — Ocarina of Time especially shaped how I think about worldbuilding and design. I'm also into space and the wider universe, which shows up in this site's visual direction. Outside of that: working out, traveling, and cooking something I haven't made before.
02 / TRANSITION
I'm actively shifting my focus toward AI engineering — applying the same systems thinking I've used building CRMs, APIs, and data-heavy platforms toward LLM-powered applications, retrieval pipelines, and AI-assisted product workflows.
Years of API integration, database design, and reporting-system work translate directly: orchestrating calls between services, designing schemas that scale, and shipping software that has to be reliable, not just clever. AI engineering is a new domain built on infrastructure I already know how to work with.
In progress — building toward production AI systems
Prompt design, tool use, and orchestration patterns for building reliable AI-driven features.
Connecting LLMs to real data — vector search, retrieval, and grounding responses in source-of-truth systems.
Years of SOAP/REST integration and service orchestration, now pointed at AI APIs and agentic workflows.
Shipping AI features means more than a working model — it means usable, reliable product. That's the part I already know.
03 / DATA
Data work is where most of my technical depth actually lives — and it's also the foundation AI engineering is built on. Every retrieval pipeline or grounded LLM response depends on the same fundamentals: clean schemas, reliable transforms, and pipelines that don't quietly break.
Building SSRS reports and analytical views that turn raw transactional data into something stakeholders can act on.
Writing and maintaining T-SQL stored procedures, scalar/table-valued functions, and triggers that encapsulate business logic at the database layer.
Designing SSIS packages and conversion routines to move and reshape data reliably between systems — the same skill set behind ETL for retrieval and embedding pipelines.
Automating routine SQL jobs and maintenance tasks — scheduled procedures, data cleanup, and monitoring — so systems stay reliable without manual intervention.
This is exactly the layer RAG systems and AI data pipelines run on — structured data, reliable transforms, and automation are the unglamorous parts that make AI features actually work in production.
04 / STACK
Highlighted chips mark tools currently being learned as part of the AI engineering pivot.
05 / PROJECTS
My recent work is strongest as product and engineering experience, so this section highlights the systems, platforms, and responsibilities I've worked on most directly — alongside the AI projects currently in motion.
Security Finance
Working with ASE and SQL databases to convert, clean, and run calculations across millions of business accounts data, generating Metro2 credit reporting files for transmission to the CRAs. Additionally, handling API integrations with Sonnet and e-Oscar, plus internal C# .NET applications used across the company.
Details available on request.
ICCO Business Software Development
Built and evolved a highly customizable CRM web application using .NET, SQL, HTML, CSS, JavaScript, and React, while also shaping roadmap decisions, sprint execution, and cross-team delivery.
Details available on request.
CreditSoft · CollectPlus · TaskPerfect
Added features and fixed bugs across ICCO's established suite of credit and collections software — CreditSoft (debt portfolio management), CollectPlus (collections and accounts receivable), and TaskPerfect (case management) — using .NET, VB, C#, T-SQL, React, HTML, CSS, JavaScript, and jQuery for a wide range of client use cases.
Worked with large SQL databases, stored procedures, triggers, SSRS reporting, SOAP and REST integrations, and IIS deployments to support stable, data-driven business applications.
Details available on request.
A full-stack case management tool for credit counselors — built to demonstrate end-to-end product engineering across a real-world domain.
Casefile covers the complete counseling workflow: client intake, debt tracking, session logging, and payoff planning using both snowball and avalanche strategies. The calculator runs a month-by-month simulation, computes projected payoff dates and total interest, and lets counselors save the result as a versioned action plan — preserving the full revision history rather than overwriting it. An analytics dashboard aggregates portfolio-level metrics, debt trajectory charts, and counselor productivity stats across the entire caseload. Built with JWT-based authentication, a normalized relational schema, and a global search covering clients, creditors, debts, and session notes.
Placeholder — update with project details.
A placeholder for a second AI project, exploring retrieval-augmented generation or agentic tool use. Details to follow as it ships.
Placeholder — update with project details.
06 / EXPERIENCE
Senior Engineer
CURRENTSecurity Finance · Oct 2025 – Present
Working with ASE and SQL databases to develop new features and enhance current processes as well as convert, clean, and run calculations across the business's account data. Generate credit reporting Metro2 files for transmission to the credit reporting agencies (CRAs), and handle API work with Sonnet and e-Oscar alongside internal C# .NET applications used company-wide.
Vice President / Product Manager
ICCO Business Software Development · Jan 2023 – Oct 2025
Led the SmartManager CRM platform — a customizable system used across multiple business workflows — shaping roadmap decisions and sprint execution while managing teams and cross-departmental delivery.
Software Development Manager
ICCO Business Software Development · Jan 2022 – Jan 2023
Oversaw development standards and ETL processes, bridging technical execution with product direction as the team scaled.
Full Stack Software Engineer
ICCO Business Software Development · Oct 2018 – Jan 2022
Built and maintained full-stack web and desktop applications, worked on large SQL data models, created APIs, supported client implementations, and helped optimize systems for performance and scale.
Information Technology Support Engineer
A&W Healthcare Management · Dec 2017 – Oct 2018
Provided on-site IT support with early exposure to SQL and SQL Server Integration Services (SSIS) — the starting point for the data-pipeline work that runs through later roles.
Programming Tutor
Hillsborough Community College · May 2016 – Dec 2017
Tutored students in programming fundamentals, including Java and Tableau, while studying computer programming and business data processing.
07 / CONTACT
Reach out if you're looking for a full-stack developer who can also think through product, delivery, and now AI-driven systems. Based in the Tampa area, open to full-time roles, freelance work, and collaborative product opportunities.