Angel Serrano
I’m Angel Serrano, a software engineer with 9+ years of experience building and modernizing products with TypeScript, React, Next.js, Node.js, Python, and Django. I help teams turn product ideas, complex workflows, and AI prototypes into maintainable production systems.
Currently building Scholarfi and Himera LLC while exploring Senior Full-Stack and AI Application Engineering opportunities.
Capability-focused engineering across product, backend, AI applications, and production operations—not a logo wall of frameworks.
I help teams turn product ideas into clear UI architecture, reusable components, and reliable frontend delivery.
Ship product-focused interfaces that stay maintainable as requirements evolve.
I build and modernize backend services for complex workflows, integrations, and data-driven products.
Design APIs and workflows that connect products to real operational processes.
I help teams move from AI experiments toward structured, evaluable application workflows.
Apply AI where it improves product decisions—without pretending prototypes are production systems.
I focus on maintainability, debugging, observability, and delivery practices that reduce operational risk.
Keep systems understandable, observable, and resilient in production.
Concrete product and systems work across e-commerce modernization, workflow automation, energy analytics, and an in-development DeFi product.
Modernizing a large e-commerce website while keeping the existing Angular application running—migrating products toward React, Next.js, and Contentful.
Role: Senior Software Engineer (staff augmentation via Tech9)
Built modules and dynamic forms to automate leasing compliance workflows for New York City affordable housing programs.
Role: Full-stack Developer
Collaborated with data science to build Insight Builder and specialized dashboards that help technicians act on wind and solar asset analysis.
Role: Full Stack Engineer
Himera is an early-stage DEX exploring how AI can help users make safer trading decisions. This case study distinguishes shipped work from planned direction.
Role: Lead Software Engineer, Full-Stack (Himera LLC)
Currently building Scholarfi and Himera LLC while open to senior full-stack and AI application engineering roles.
May 2026 – Present
Self-employed
Building Scholarfi, a platform that connects academic achievement with blockchain-based rewards for schools, NGOs, and educational institutions.
Active founding role alongside Himera LLC engineering work.
2025 – Present
Self-employed
Building full-stack and blockchain product features at Himera LLC, a blockchain services company.
Active alongside Scholarfi founding work while exploring senior full-time opportunities.
August 2022 – April 2025
Staff augmentation
Staff-augmentation engineer for Plexus Worldwide, focused on modernizing their e-commerce website.
December 2021 – August 2022
Full-time
Developed modules and dynamic forms to automate leasing compliance workflows for New York City affordable housing programs.
April 2020 – December 2021
Full-time
Joined as the first full-stack developer and partnered with data science on tools for wind and solar asset technicians.
February 2017 – April 2020
Full-time
Collaborated on client projects in Mexico and the USA across frontend and backend stacks.
Notes on software architecture, TypeScript, Python, product development, and building systems that stay maintainable.
I learned a lot about product and tech from the experience
It refers to a technique where the first letters of words are bolded to create “artificial fixation points”
Solidity is a powerful language to program smart contracts.
Whether you are hiring for a senior engineering role or need help shipping a product, there is a clear next step.
Looking for a senior full-stack, backend, AI application, or tech lead engineer who can own product delivery end to end. I bring 9+ years building and modernizing production systems with TypeScript and Python.
Discuss a roleNeed freelance product engineering, backend systems work, or technical consulting to move an idea, migration, or AI prototype into a maintainable production system.
Discuss a projectHiring managers and founders: tell me about the role or project. I am building Scholarfi and Himera LLC while exploring senior full-stack and AI application engineering opportunities.
