Web & App Development Company
Seistreinta is a full-service software development company specialized in developing web and mobile apps for small and medium companies. We have experience working on finance, banking, real estate, retail, media, crm, and more.
We’re experts in:
- Web & Mobile development
- MVP Products
- Cloud Computing and services on GCP
- Product Design
- DevOps
- NodeJS, TypeScript, React, React Native

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Portfolio

Inplace system
Overview
InPlace a company with accelerated growth was on the need to change their workflow based on the use of spreadsheets for a software that would allow them to keep track of leads and clients to reduce issues and management costs by automating processes
Challenge
Collaborate with the Inplace team to analyze and define the business processes on a software solution, proposing improvements that help them to make their daily activities more efficient.
Also, they require an early software delivery to solve critical and more relevant business problems.
They knew that this was going to be the main operating system for the whole business so we have to use technologies that allow us to add on easy way modules for every business area.
Technology
React JS + Typescript allowed us to work with a components framework with Types*,* a strong structure to guarantee the correct use of the system’s context
GraphQL + Apollo allowed us to optimize servers query, through requiring minimum information on every request and also making correct use of cache
Node JS + Typescript + Microservices allowed us to divide logic into separate contexts to distribute the workload and avoid a huge monolithic project.
Google Cloud Platform + Kubernetes & CloudSQL, allowed us to guarantee high availability, scalability, and security support by a proper implementation of Google Cloud technologies
Product ideation
In the first meeting with Inplace’s CEO, he told us about the problems that they have been experimenting with owing to the near business expansion to other cities, he highlighted that a fundamental business principle for success was a good customer experience, that experience core values are the luxury sense, elegance, and amazing customer support.
They have been working to build their brand with these principles and the system must transmit that...
Full case study -> https://www.seistreinta.com/case-study/inplace

Oil and Gas stations System Redesign
Overview
RedPacifico is a software provider for some gasoline distributors located in the north of Mexico and their platforms are used by thousands of people every day at the gas stations.
The software that these businesses are using, helps them measure and control tanks gas levels, control business fleet vehicles, manage customer payments and credits, and control the gas stations where the final user buys their gas for their vehicle.
The Problem
RedPacifico has the necessity to redesign their current software because it was created twelve years ago and along all this time It had just a few improvements. They decided that It was better to start a new project from scratch to entirely rebuild the software using new technologies and develop methodologies, therefore they look to implement and improve the user interface and user experience.
The challenge
The software was large and the challenge was to develop a design system that scaled and support all the management data modules (Providers CRUD, customers, etc) without redesigning each screen of the software, this allows us to invest more time defining and designing the modules that the final user going to interact.
Read the full case study -> https://www.seistreinta.com/case-study/redpacifico
Reviews
the project
Custom Software Development for Creator Marketing Company
"They’re fully invested in this project and in helping me build our future."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I’m the CEO of a company that builds marketing tools for artists, creators, and organizations. I also spearhead our application development efforts.
What challenge were you trying to address with Seistreinta?
We wanted to speed up and scale our workflow by adding development firepower to our team. Seistreinta came on board as an extension of our development team to build our application.
What was the scope of their involvement?
The project is a suite of different tools used by artists and their teams to streamline and automate their marketing. Seistreinta’s team helped us build out a whole new set of features, which required redesigning several existing features.
Our solution is a data-connection-heavy platform that primarily uses third-party data from other platforms. The platform is built on React and Tailwind on the frontend and Express on the backend. Alongside those technologies, there are a lot of different API connections.
An artist or team logs into our application and connects their Spotify profile. From there, they’re able to perform different functions like running automated Instagram or Facebook ads, tracking their data across different platforms, and adding a link to their bio.
What is the team composition?
We work with around five people, including Paul (CEO), 2–3 designers, a project manager, and a designer.
How did you come to work with Seistreinta?
A third-party development firm that we’d worked with in the past referred me to them.
How much have you invested with them?
The total cost is around $20,000 so far.
What is the status of this engagement?
We’ve been working together since April 2022.
What evidence can you share that demonstrates the impact of the engagement?
Our user growth has almost doubled since we started working with Seistreinta. This speaks to their ability to ship new features and fix bugs quickly. Seistreinta is the best development firm I’ve worked with, and I’ve worked with quite a few.
How did Seistreinta perform from a project management standpoint?
Their communication is very good thanks to some strong processes that have come into play across the team regarding shipping on time and shifting priorities around. They’re very flexible.
We have a discord set up for asynchronous communication, and Seistreinta also uses a Notion project management setup. Each module is broken down into different features, and they’ve also integrated Figma for the design workflow, which allows us to leave comments. It’s all very streamlined. We have easy access to everything, and they’re quick to respond to feedback.
What did you find most impressive about them?
The biggest difference between Seistreinta and their competitors is that they understand more than just writing code. They understand design and product development as well. Additionally, they don’t just follow directions; they make sure to code something that actually works. In terms of understanding, they’re also knowledgeable of go-to-market plans and the project lifecycle.
They’re also the most streamlined firm I’ve worked with, as well as one of the most design-heavy firms. A lot of development firms focus purely on development, but the people at Seistreinta have strong design sensibilities as well.
I’ve really enjoyed our entire process of working with them. They’re fully invested in this project and in helping me build our future. They’re a natural extension of our team, as opposed to a third-party firm.
Are there any areas they could improve?
There’s no way they can improve on my experience so far. I’ve dealt with different outsourced firms in the past from the development side, and this is the smoothest, most productive process I’ve been involved with in a long time.
the project
Staff Augmentation for Healthcare Development Studio
"The team goes above and beyond and makes sure to adjust for the service that we need."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I’m the managing director of a software development studio focusing on the medical and healthcare space.
What challenge were you trying to address with Seistreinta?
We were having a hard time hiring and sourcing software development professionals, so we went offshore for more cost-effective solutions.
What was the scope of their involvement?
Seistreinta is our primary software development partner, and they’ve been working with us on building a healthcare app. It’s for Android devices, so they’re utilizing the React Native framework for the frontend, while using JavaScript, Python, and Django for the backend.
What is the team composition?
We’re mainly working with a product manager and product director.
How did you come to work with Seistreinta?
We came across Seistreinta through Clutch.
How much have you invested with them?
So far, we’ve spent about $10,000 CAD (approximately $7,700 USD).
What is the status of this engagement?
Our ongoing partnership started in April 2022.
What evidence can you share that demonstrates the impact of the engagement?
I don’t really have any metrics to share at the moment, but they’ve been doing a great job of communicating and developing the product.
How did Seistreinta perform from a project management standpoint?
They perform well from a project management perspective. They use JIRA as their primary management tool and Slack for direct communication.
What did you find most impressive about them?
The team goes above and beyond and makes sure to adjust for the service that we need. They’re also very transparent and their executive team is very aware and involved in the entire process.
Are there any areas they could improve?
As a small company, they sometimes don’t have the resources needed for the project but outside of that, they’ve been a consistently great partner.
Do you have any advice for potential customers?
I would advise you to make sure you understand the technology stack to what you need and that you have all the information available, for a smoother onboarding process.
the project
Custom CRM System Dev for Financial Services Firm
"We’re 100% satisfied with their work, and they’ve exceeded our expectations."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I am an assistant director at a financial services company called Inplace.
What challenges were you trying to address with Seistreinta?
They provided a custom software that has CRM functionalities, allowing us to manage our client’s information and automatically create contracts and follow up on payments. It also has expenses control tools, HR management, and report creation tools, among others. The system is cloud-based, but we are planning on transferring it to our own servers.
What was the scope of their involvement?
Seistreinta created the system and also provided training for us. They continuously work on new modules and updates.
What was the team composition?
We work with several people from their team, including the general manager, a project manager, a designer, and about 4–5 developers.
How did you come to work with Seistreinta?
Our company’s manager knew them beforehand, but we also approached different companies. We chose Seistreinta because they seemed like the best fit for our needs; their technologies, services, and flexibility were exactly what we were looking for.
How much have you invested in them?
We’ve spent around 100,000 USD.
What is the status of this engagement?
We started working with them in November 2020, and it is an ongoing collaboration.
What evidence can you share that demonstrates the impact of the engagement?
The system has allowed us to make our processes more efficient. We managed printed documents and files, but now everyone can access all of them through the system, saving us more time. Overall, we’re 100% satisfied with their work, and they’ve exceeded our expectations.
How did Seistreinta perform from a project management standpoint?
In terms of project management, they’re great — they always meet deadlines. There’ve been some delays, but that’s from our side. We communicate mainly via email and WhatsApp.
What did you find most impressive about them?
They’re great at putting our ideas into action, and they always find ways to improve and integrate them into the development process.
Are there any areas they could improve?
The system’s filtering functionality can be more user-friendly, and we also want to have shorter processes in implementing changes and updates.
the project
UI/UX Design for Digital Product Company
"They’re dedicated and responsible people."
the reviewer
the review
A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.
Introduce your business and what you do there.
I'm the software delivery manager of RedPacifico. Our company provides a digital solution for gas stations in Mexico for oil distribution.
What challenge were you trying to address with Seistreinta?
We wanted to redevelop our platform completely, so we needed a new UX for our customers, and that’s what we went to Seistreinta for.
What was the scope of their involvement?
Seistreinta is doing UI/UX design using Microsoft’s Fluent Design System. The first step was an interview during which I explained the problem to them. They gave us a design proposal two weeks later and worked on product design and categories from there.
We’ve also worked on a project with them developing a WhatsApp bot. I had this necessity and asked them about it. They knew the technology, and they did it very well.
Currently, we're at the product's testing phase.
What is the team composition?
I’ve worked with two designers from Seistreinta so far.
How did you come to work with Seistreinta?
They were referred to me by my financial coach.
How much have you invested with them?
We've spent $8,000–$9,000 with them so far.
What is the status of this engagement?
We started working with them in February 2021, and the engagement is ongoing.
What evidence can you share that demonstrates the impact of the engagement?
The product isn’t finished yet, but we’ve had a few reviews with the customers and users, and the feedback we’ve received has been very positive for us — they're impressed by the new system's design.
How did Seistreinta perform from a project management standpoint?
We’re using a scrum-based framework with weekly deliverables. We also have review meetings on Fridays, during which Seistreinta explains the work they’ve done.
What did you find most impressive about them?
Their attitude is outstanding; we have very demanding clients in the gasoline business, and Seistreinta can adapt to their demands. Also, everyone involved in the project is available within five minutes, which is valuable to me — they’re dedicated and responsible people.
Are there any areas they could improve?
We’ve almost finished our second project with them, and I don’t have anything negative to report.
Do you have any advice for future clients of theirs?
Any enterprise or customer looking to hire them should feel secure that Seistreinta will be committed to what they promise. They’re an innovative team.
Seeing consistent user growth since Seistreinta came on board, the client is pleased with how quickly they deliver functionality and implement bug fixes. Their flexibility stands out, as does their ability to see beyond technical development to design and product development priorities.