Browse categories
Explore
Fiverr Pro
English
$
USD
I will build kotlin backend apis and features for your mvp
Lazaro R
About this gig
Need a reliable backend feature or a strong foundation for your product? Kotlin is my primary day-to-day language, and I bring substantial professional experience building production systems in Java too. I build clean APIs and backend services for web and mobile products, extending existing systems or creating new features.
With 7+ years of senior software-engineering experience across production APIs and distributed payment systems, I bring strong architecture, testing, integration and failure-handling instincts to each project. I can take on a focused fix or endpoint, a database-backed feature, a third-party integration, or a larger backend slice for a polished MVP 1.0/2.0.
Agentic AI workflows speed investigation and implementation; I guide technical decisions, review code, and verify behavior. Kafka and event-driven workflows, performance reviews, data processing and cloud-ready delivery are also available when they fit. Larger modules and full MVPs need a custom offer with agreed features, timeline and price before work begins.
I also take on separately scoped mobile, game and web work.
Get to know Lazaro R
Lazaro R
Senior Software Engineer
- FromUnited States
- Member sinceFeb 2022
- Avg. response time1 hour
Languages
English, Spanish
I am a senior-level backend software engineer with over 7 years of experience designing and delivering production APIs, distributed services, and payment platforms. I specialize in Kotlin and Java, helping product teams turn clear ideas into maintainable backend features and milestone-based MVP releases. I bring strong hands-on depth in API design, event-driven systems, and cloud-ready delivery.
Other Software Development Services I Offer
FAQ
What do you need from me to get started?
Please share a short feature brief, your current tech stack, expected behavior, and acceptance criteria. For existing projects, include relevant code or steps to reproduce. Use test credentials only; never send production passwords or secrets.
Can you help with a full MVP 1.0 or 2.0?
Yes. I can contribute backend engineering for a polished MVP 1.0 or 2.0, from a focused module to a larger scoped build. UI/UX design and native mobile screens are outside this Gig. Message me with your feature list so I can define the scope and send a custom offer before work starts.
Which technologies do you work with?
Kotlin is my primary day-to-day language, and I have substantial professional experience building in Java, including new development. I work mainly with Spring Boot, Ktor, Quarkus, SQL, Kafka, and API integrations. Share another stack and I will confirm fit.
