Jersin Lazaro. Software engineer, founder, and CEO.
I am the founder and CEO of JLS Software Solutions, a senior software engineer focused on native Android and Full Stack. I live in Trujillo and have spent 8+ years building mobile apps and custom systems that are already in production. I have shipped product for Starbucks, BCP, Disney, ESPN, Unimarc, and Claro, and from the studio I design, build, and publish end to end: from architecture to launch on Play Store, App Store, or the web.
Jersin Lazaro · Trujillo, Peru
A career on real products
From code to strategy: I lead initiatives, mentor developers, and drive architecture decisions with business impact.
8+
years shipping production software
CEO
JLS Software Solutions S.A.C.
6+
companies and consultancies
Stores
Play Store and App Store
Work experience
Corporate roles, consulting, and what we deliver through JLS. Newest first.
2017 — present
Founder & CEO
JLS Software Solutions S.A.C. · Trujillo
I run the studio: product, architecture, delivery, and client relationship. The same bar as banking, retail, and telco, applied to businesses that need to go digital now.
- Restaurant platform: orders, digital menus, dashboards, and user management.
- Websites, landings, and e-commerce with domain, hosting, and ongoing support.
- Android and iOS apps with Play Store / App Store publication and maintenance.
- Initiative leadership, mentoring, and architecture decisions with business impact.
2025 — 2026
Senior Mobile Developer
Tsoft · Chile & Mexico
Unimarc (Chile retail): Store Locator with Jetpack Compose, geolocation, and maps. Telcel: responsive web UI with React, TypeScript, and Tailwind. Contributions to Kotlin Multiplatform.
- Maintenance and new features for Unimarc, including a Store Locator in Jetpack Compose.
- Geolocation, maps, and traffic debugging with Charles Proxy.
- Clean Architecture and SOLID in production Kotlin.
- Kotlin Multiplatform contributions to share logic across platforms.
- Telcel web UI: responsive frontend with React, TypeScript, and Tailwind.
- Full SDLC: analysis, development, QA, and release.
2023 — 2025
Senior Mobile Developer
Delosi Peru S.A.C.
Enterprise apps for operations, scheduling, and inspections. Tablet ordering for Starbucks (capture, tickets, real-time printing). Nationwide work-order platform for Starbucks and Chili’s. Flutter, Compose, and native iOS/Android extensions.
- Internal apps for operations, scheduling, and inspections used nationwide.
- Starbucks tablet ordering: capture, tickets, and real-time printing.
- Work-order platform for Starbucks and Chili’s, integrated with warehouse ops.
- Modular / microfrontend Flutter architecture with native Android and iOS extensions.
- Jetpack Compose and native iOS UI when the flow required it.
- API integration, auth, local storage, and printing.
- Play Store and App Store releases, plus direct work with brand stakeholders.
2023
Senior Mobile Developer
Globant S.A.C.
Android support for Disney Cruise, ESPN, and Fantasy. Compose, Coroutines, JUnit/Mockito, Jenkins pipelines, and Flutter training for the community.
- Android support on high-traffic apps: Disney Cruise, ESPN, and Fantasy.
- Jetpack Compose, Coroutines, and clean architecture practices.
- Unit tests with JUnit and Mockito.
- Jenkins pipelines for CI/CD.
- Flutter training for Globant’s internal community.
2019 — 2022
Senior Mobile Developer
NTT DATA Europe & LATAM
Native Claro Smart Home. BCP Benefits framework for Android & iOS (NativeScript and React Native). Jenkins/Fortify CI/CD, Friends & Family, technical interviews, and Mobile community training.
- Native Claro Smart Home (connected home).
- BCP Benefits framework and migration for Android and iOS (NativeScript and React Native).
- Jenkins CI/CD and Fortify security analysis to bank standards.
- Friends & Family program before store rollout.
- Technical interviews and training materials for the Mobile community.
- Mentoring junior developers and architecture reviews.
2018
Mobile Developer
Universidad San Ignacio de Loyola
SIR app for San Ignacio de Recalde School: VisaNet payments, grades, schedules, and supplies. Student, teacher, and parent roles. Live on Play Store.
- SIR app for San Ignacio de Recalde School, live on Play Store.
- VisaNet payments, grades, schedules, and school supplies.
- Distinct flows for students, teachers, and parents.
- Real production usage by the school community.
2017 — 2019
Full Stack Developer
Expert Technologies
SIGECO (security, sales, inventory, treasury, e-invoicing) at LUBTEC, NOROIL, Grupo LCC, and OKEY. Order-taking apps for OKEY and Mobil. .NET Core, Azure, Docker, and native Android.
- SIGECO: security, sales, inventory, treasury, and e-invoicing.
- Rollouts at LUBTEC, NOROIL, Grupo LCC, and OKEY.
- Order-taking apps for OKEY and Mobil (native Android).
- Backend and APIs with .NET Core, Azure, and Docker.
- End-to-end Full Stack delivery, from server to app.
What I build through JLS
The company comes from this path: the same bar as banking, retail, and telco, applied to businesses that need to go digital now.
- Restaurant platform: orders, menus, dashboards, and users.
- Websites, landings, and e-commerce with domain, hosting, and support.
- Android and iOS apps with store publication and maintenance.
Portfolio highlights
More products in production
Unimarc · Store Locator
Store locator in Jetpack Compose, with geolocation, maps, and Chile retail features.
Claro Smart Home
Native connected-home app: devices, automation, and telco experience in production.
SIR · Recalde School
VisaNet payments, grades, schedules, and supplies, with student, teacher, and parent roles. Live on Play Store.
SIGECO · OKEY & Mobil
ERP for sales, inventory, and e-invoicing, plus field order-taking apps.
How I work
Native mobile
Kotlin, Java, Jetpack Compose, Clean Architecture, KMP.
Cross-platform
Flutter, React Native, NativeScript.
Full stack
React, Next.js, TypeScript, NestJS, Spring Boot, APIs.
Quality & cloud
CI/CD, Docker, Firebase, PostgreSQL, Play Console.
Technical leadership
Mentoring, interviews, architecture decisions, and stakeholder delivery.
Stores & release
Play Console, App Store, Friends & Family, Fortify, and Jenkins pipelines.
Education
UPC · 2020
Computer Systems Engineering.
Cibertec · 2015–2017
Professional technician in Computing and IT.
ICPNA · 2008–2011
English basic to advanced. Native Spanish, English B2.
Shall we talk about your product?
Reach me on WhatsApp or email. If the project is for your company, you can also go through the JLS channel.