Ferenck Vargas
Mentor
(10 reviews)
US$25.00
For every 15 mins
21
Sessions/Jobs
ABOUT ME
Experienced Software Engineer | Mentor | Project Leader
Experienced Software Engineer | Mentor | Project Leader
Hi there! I’m Ferenck Vargas, an experienced backend software engineer and tech lead with over 10 years of industry expertise in API development, payment integrations, scalable architecture, and team leadership.
As a former college lecturer and mentor, I have a passion for guiding developers to unlock their full potential. I specialize in:
Revitalizing APIs and building high-performance backend systems.
Implementing payment integrations like Stripe to optimize business workflows.
Leading engineering teams to deliver scalable and reliable solutions.
Whether you're a beginner looking to understand software fundamentals or an experienced developer needing guidance on complex backend challenges, I’m here to help. Let’s tackle your projects together!
Spanish, English
Central America (-06:00)
Joined November 2014
EXPERTISE
10 years experience | 2 endorsements
I have 10+ years of experience in development. This includes SQL development and a lot of hours working with queries and stored procedure...
I have 10+ years of experience in development. This includes SQL development and a lot of hours working with queries and stored procedures development.
10 years experience | 4 endorsements
I have 10+ years of experience in .net development in several outsourcing companies. I've worked as tech lead and architect for a multina...
I have 10+ years of experience in .net development in several outsourcing companies. I've worked as tech lead and architect for a multinational company. Corrently, I'm working for a small .net development workshop.
8 years experience
+8 years working in frontend development with React. Experience with Stateful and stateless components, State management libraries like R...
+8 years working in frontend development with React. Experience with Stateful and stateless components, State management libraries like Redux and side effect strategies like Sagas, Observables and Thunks.
8 years experience
8 years experience
8 years experience
Plenty of experience with most of major Node frameworks and libraries to build APIs including Express, NestJs, NextJs, Fastify, HappyJs a...
Plenty of experience with most of major Node frameworks and libraries to build APIs including Express, NestJs, NextJs, Fastify, HappyJs and Sails.
Experience with the most used ORMs in Node ecosystem: Prisma, Sequelize, Mongoose, etc.
8 years experience
REVIEWS FROM CLIENTS
(10 reviews)
Warren Cooper
September 2016
Excellent got the code working instantly.
Andrew Wan
August 2016
Awesome help.
Kalu
July 2016
Great great great! Good communication. Patient. Took time to have a free info lesson to first understand the problem. Worked quickly to save me money!
SOCIAL PRESENCE
RandomUrl
HTML
0
0
Biblioteca_PIV
C#
0
0
EMPLOYMENTS
Head of Engineering
Kissmetrics
2024-01-01-2024-08-01
Led a cross-functional team of engineers to deliver high-concurrency backend solutions while driving the product roadmap. Designed scalab...
Led a cross-functional team of engineers to deliver high-concurrency backend solutions while driving the product roadmap. Designed scalable integrations with platforms like Unity and Unreal Engine and managed complex architectures involving Kafka, Redis, and Spark.
Key Contributions:
Spearheaded system reliability improvements, maintaining a 99.9% uptime SLA.
Architected integrations with third-party platforms, leveraging Ruby, React.js, and C#.
Mentored team members to foster professional growth and collaboration.
React
View more
React
View more
Senior Full Stack Engineer
Practice
2021-10-01-2023-09-01
Developed critical backend systems with a focus on payment integration and API development. Played a pivotal role in transitioning the pl...
Developed critical backend systems with a focus on payment integration and API development. Played a pivotal role in transitioning the platform to a scalable and modern infrastructure.
Key Contributions:
Implemented seamless payment features using the Stripe API.
Designed and launched a new API version, ensuring scalability and maintainability.
Provided technical leadership, enabling efficient development practices.
Node.js
API
TypeScript
View more
Node.js
API
TypeScript
Firebase
Stripe
React
JavaScript
Next.js
Firestore
Fastify
View more
Software Engineering Lead
Clipboard Health
2020-10-01-2021-08-01
Managed a team of 4–5 engineers to deliver robust technical solutions. Focused on enhancing the company's payment systems and driving eng...
Managed a team of 4–5 engineers to deliver robust technical solutions. Focused on enhancing the company's payment systems and driving engineering excellence.
Key Contributions:
Led a major project to integrate Stripe as the primary payment processor, boosting efficiency by 30%.
Reviewed and optimized code for quality and adherence to best practices.
Mentored junior developers, fostering growth and improving team productivity.
Node.js
MongoDB
TypeScript
View more
Node.js
MongoDB
TypeScript
React
JavaScript
NestJS
View more