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Development Services

For demanding clients and challenging projects
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Want to develop your technology project?

Software
Development

Want to scale your in-house team?

IT
Recruitment

US & EU presence
and work history

For demanding clients

Wide Range of Technology Services

Complex Back-End Systems

Most web and mobile applications need the back-end service for proper operation. The choice of back-end technology is crucial for the entire system because it affects its speed, operating costs and reliability. A properly designed and built back-end ensures transaction security and protection of its users’ data. An important aspect of the back-end system is its database. The choice of database, relational or non-relational, and its design affect the speed of a given application, security and the possibility of extension in future. A properly designed system should also have a well-designed and documented API so that integration with web and mobile applications is as efficient as possible. Back-end is often considered a more difficult part of an IT system than front-end. The way things work, the logic vs the outlook are what piques our interest. We have a passion for algorithms, math and data structures. Some of us have participated in national and international algorithmic contests and enjoy problem-solving challenges, even after hours.

Technologies

Python

Node.js

Java

MySQL

PostgreSQL

MongoDB

Docker

Apache Web Server

Open API

AWS

Google Cloud

Zeit

Heroku

Ansible

Kubernetes

Terraform

Twilio

Firebase

Solr

Prometheus

Kibana

Grafana

Sentry

ElasticSearch

Nginx

Rabbit MQ

Swagger

Flask

Jenkins CI&D

Redis

Gunicorn

Django

Express.js

Okta

Front-End Web Apps

In designing front-end applications we have various frameworks to choose from, such as React, Vue, Angular, just to mention a few, that provide speed and good user experience. These applications also let developers work effectively so that the application can be created fast while maintaining good quality and the possibility of a long-term use.

For many years, Facebook’s React had been a king of modern web frameworks. In recent times, the trend changed. Many engineers nowadays prefer Vue.js over React with Vue also garnering more stars on Github. Vue allows for faster, more intuitive web development as compared to React. However, both frameworks are very similar and shine especially for smaller projects such as MVPs or prototypes.

For corporate web applications, we have observed that Angular 2 is a better solution because it offers a uniform way of doing things that is important for big and extensive web projects. It also allows for a faster on-boarding of new engineers to the system. Many big firms we work with very recently prefer using Angular over React or Vue.

The time where in applications and websites were built only using JS, HTML, SCSS have passed. Today, front-end apps are a showpiece for your business because it is something that the user sees and can work with. The front-end application must be fast, secure, able to support poor-quality internet connection and different screen resolutions, and above all, be easy to use. In designing front-end applications we have various frameworks to choose from, such as React, Vue, Angular, just to mention a few, that provide speed and good user experience. These applications also let developers work effectively so that the application can be created fast while maintaining good quality and the possibility of a long-term use. For many years, Facebook’s React had been a king of modern web frameworks. In recent times, the trend changed. Many engineers nowadays prefer Vue.js over React with Vue also garnering more stars on Github. Vue allows for faster, more intuitive web development as compared to React. However, both frameworks are very similar and shine especially for smaller projects such as MVPs or prototypes. For corporate web applications, we have observed that Angular 2 is a better solution because it offers a uniform way of doing things that is important for big and extensive web projects. It also allows for a faster on-boarding of new engineers to the system. Many big firms we work with very recently prefer using Angular over React or Vue.

Technologies

JavaScript

TypeScript

Node.js

MeteorJs

Vue

React

Enzyme

Protractor

PWA

Mocha

MobX

Saga

Material Design

Sass

Webpack

Babel

Karma

Jest

Redux

Gulp

Mobile Apps

When the application is ready, it is then deployed to the Play Store (Android) and the App Store (IOS).

Our recommendation for cross-platform solutions is to use Flutter which is Google’s counterpart to Facebook’s React Native. It has been stable since December 2018 and is quickly gaining popularity in the mobile community. We have also observed that app development is much faster with Flutter compared to Cordova or React Native which is very important especially for the MVP stage or a quick prototype. You can read more about Flutter here.

Smartphones are one of the most essential technologies nowadays. That is why a mobile app can make your business accessible to millions of users. For your application to be successful, it must be intuitive, fast, practical and above all, easy to use. Our experts carry out the process of creating applications, from the design to clickable prototypes that will help understand the needs of the market and its potential users. After this, they incrementally provide subsequent parts of the application so that you, our client, have continuous insight and can take part in its creation. The choice of technology between Native or Cross-platform solutions is substantial when designing the application. On cross-platforms solutions such as React Native, Cordova or Flutter, the application is created simultaneously on both Android and IOS resulting in reduced time and costs. However, native solutions have certain advantages over cross-platform, so, therefore, it is encouraged to make the decision at the very beginning. When the application is ready, it is then deployed to the Play Store (Android) and the App Store (IOS). Our recommendation for cross-platform solutions is to use Flutter which is Google’s counterpart to Facebook’s React Native. It has been stable since December 2018 and is quickly gaining popularity in the mobile community. We have also observed that app development is much faster with Flutter compared to Cordova or React Native which is very important especially for the MVP stage or a quick prototype. You can read more about Flutter here.

Technologies

iOS

Android

Swift

React Native

Flutter

Cordova

Big Data and Data Analytics

Collecting, storing, analyzing and processing large data sets is a complicated process. However, it leads to gaining new knowledge which can turn into unexpected business results, reduced operating costs and a significant increase in your company’s income. Our experts have been operating and troubleshooting the 900-node YARN Hadoop cluster at Spotify, thus, becoming certified Hadoop specialists. Thanks to their experience and skills, they will be able to effectively use analytical techniques such as machine learning and verify hypotheses to obtain the best results for your business.

With regards to Big Data projects, we have been helping companies in various industries such as finance, financial services, entertainment & media, retail, pharmaceutical, and telecommunications.

Technologies

Hadoop

Hive

Cloudera

Cassandra

Spark

Java

Tez

Pig

Luigi

Sqoop

Kafka

ElasticSearch

Falcon

Airflow

Oozie

Flink

Storm

Avro

Impala

Python

DevOps & Cloud Infrastructure

Software development is a multi-stage process that also connects specialists from various fields. DevOps allows us to look at the product from a broader perspective and monitor the production process from the beginning. Our team uses the best DevOps practices such as continuous integration and delivery, micro-service architecture, collaboration, and communication that will allow us to shorten the software development cycle. We are able to increase the frequency of release, thus introduce faster improvements and innovations in response to the rapid change of market needs. Automation makes it possible to effectively manage, maintain, and ensure the reliability of complex systems because each release can be tested automatically. Through DevOps, developers and operational teams can work closely together in exchanging knowledge and sharing responsibilities, which allows for more efficient work and quicker results.

We have hugely experienced DevOps specialists in our team and network. One of us has worked for a Node.js foundation, helping them scale their infrastructure to millions of downloads a week – which is pretty challenging yet rewarding.

Technologies

AWS

Google Cloud

ElasticSearch

PostgreSQL

Gunicorn

Jenkins

Terraform

DigitalOcean

Grafana

Consul.io

Swagger

Nginx

Kibana

Prometheus

Sentry

Kubernetes

Docker

Logstash

Core OS

Docker Swarm

Enterprise
Application
Development

As usual, every project is different, requires a set of different skills and an individualized approach. We have experience working with corporations, knowing the culture, adjusting work methodology, and tailor the communication. The industries that we have worked with the most are finance and financial services, banking, entertainment and media, pharmaceutical, telecommunications and retail companies.

Enterprise software is a product that satisfies the needs of a company. The task of such software is to support the company in its operations. Effective Enterprise software can increase the company’s productivity and efficiency, resulting in reduced operating costs and an increase in profits. To create such software, our team commits and takes the time to thoroughly understand the business perspective and its issues. As a result, we are able to offer the best solutions in terms of performance and usability. An example of such software is the ERP system for a company operating in the field of finance – see our case study. As usual, every project is different, requires a set of different skills and an individualized approach. We have experience working with corporations, knowing the culture, adjusting work methodology, and tailor the communication. The industries that we have worked with the most are finance and financial services, banking, entertainment and media, pharmaceutical, telecommunications and retail companies.

Tech
Recruitment
Services

In contrast to many other recruitment firms, we have a Computer Science background combined with years of hands-on experience in tech. We have been software engineers ourselves and have participated in software projects also from the business side. Our experiences allow us to have a much broader understanding of the client’s needs, so we know exactly who and what we are looking for.

We specialize in searching and sourcing highly skilled software engineers and IT managers from Europe, Canada, and in the US. We aim at understanding your business needs in order to propose the best candidates for you. Our recruiters have strong interpersonal and technical skills which allow us to shorten the recruitment process, and determine the best candidates efficiently. Our wide knowledge in technology will also be useful in helping the candidates understand what the job entails and why they should accept it. It is important for us that our recruiters maintain a network of contacts that allow us to access the best specialists on a continuous basis. In contrast to many other recruitment firms, we have a Computer Science background combined with years of hands-on experience in tech. We have been software engineers ourselves and have participated in software projects also from the business side. Our experiences allow us to have a much broader understanding of the client’s needs, so we know exactly who and what we are looking for.

Custom
Technology
Consulting

In a custom technology inquiry, we offer web scraping, code quality audit, request/code review, general technology advisory, workshops, technology strategy session, CTO on demand, or anything specifically tailored to your niche. We are confident in our skills and can certainly offer a wide range of technology services tailored to the unique needs of your business.

Building software is a complex process that requires a lot of knowledge and experience. Our employees and contractors are subject-matter experts in many areas and will bring specific skills set to your company. We are willing to help you with your projects by assisting you from the early stages and see it through until the end, or, be of assistance by recommending the best solutions in the field of product design, architecture, technology stack, and security. In a custom technology inquiry, we offer web scraping, code quality audit, request/code review, general technology advisory, workshops, technology strategy session, CTO on demand, or anything specifically tailored to your niche. We are confident in our skills and can certainly offer a wide range of technology services tailored to the unique needs of your business.

Co-development/team augmentation

Already have
a software team?

Do you need the flexibility of subcontracting with the safety of an on-site team? With our co-development (team augmentation) service, our engineers can start working with your team immediately and boost your performance. You decide how much help you need, and we will adjust dynamically.

Full Solution Development

Starting a product
from scratch?

We bring together people that believe work is passion and whose mission is to bring ideas to life. Many years, thousands of working hours have rendered and hundreds of implemented projects have honed us. We get to know countless technologies, have gained experience and developed processes that allow us to effectively deliver specific solutions.

We specialise at:

Product Management
Software Engineering
JavaScript
Python
Node

Deployment
Big Data
Quality Assurance
and more…

This allows us to have a more holistic and deeper approach to a problem.

Your project MVP
in 45 days

During development, we will focus on essential areas and functionalities, taking engineering shortcuts to deliver maximum business value tailored to your goal, be it investor meetings, marketing launch, fundraising, or internal demonstration.

For startups that we work with on MVP, we strive to help them find funding for future development, past MVP stage, by leveraging our network of angel investors and VCs from both the US and EU.

Cross-industry expertise

Over the years, we’ve been accumulating our expertise in building software and conducting recruitment projects for different segments. Below are six industries where we have particularly strong knowledge.

Retail /
E-commerce

Pharmacy

Financial Services,
Hedge Funds

Construction

Telco

Entertainment & Media

Business
understanding first

Each stage of app development has its challenges. You might experience misguided ideas, technical difficulties that would deplete your budget. To minimize risks and get the best possible outcome, we slice projects into phases and adjust the way we work to deliver a complete and stable solution.

Below is a very brief and general roadmap, but bear in mind that there is no size that fits all in software engineering.

Discovery

Video call about the project details

Getting to know each other

Verifying project’s feasibility

Series of calls for initial planning

Rough budgeting

Proposing best team for the timeline & budget

Client to interview the team

Proposing next steps

Personality

Development

Competition and benchmarks

Defining users

Defining user stories

Discussing pains and gains

Defining Minimum Viable Product

Usability testing

Visual design of the product

Rapid prototyping

Software development

On-going feedback gathering

Product Release

Implementation of analytics tools

MVP Product launch

Interactive feedback, planning & further development

Maintenance /

Team Enablement

After the project is completed, if the decision is to maintain and further develop the project internally, we’ll provide team enablement show-casting exactly how to make further modifications.

Discovery

Video call about the project details
Getting to know each other
Verifying project’s feasibility
Series of calls for initial planning
Rough budgeting
Proposing best team for the timeline & budget
Client to interview the team
Proposing next steps
Personality

Development

Competition and benchmarks
Defining users
Defining user stories
Discussing pains and gains
Defining Minimum Viable Product
Usability testing
Visual design of the product
Rapid prototyping
Software development
On-going feedback gathering

Product Release

Maintenance / Team Enablement

Ready to get started?

Reasons to choose DevsData LLC

Only A-players. Google level engineers

Serious about security and sensitive data

Meteoric pace of development with the very recent frameworks

We like algorithms and complex challenges

Experienced team of high-achievers

Tom Potanski

CEO & Founder

Luke Korzeniowski

Big Data Expert

Paul Paulinski

Front-End Expert

Matt Doroszko

Back-End Expert

Lauri Saar

Full-Stack Software Engineer

Kamil Lelonek

Back-End & Elixir Expert

Martha Karkosik

Senior Project Manager

Paul Kaminski

Tech Lead, Back-end & DevOps Expert

Kamil Bendarek

Tech Lead & Full-Stack Engineer

and 30 more

DevsData in Numbers

5+

years of experience

40+

completed projects

30+

talents

We love to code. It's our passion.

The technology scope includes:

JAVASCRIPT

TYPESCRIPT

NODE.JS

Meteorjs

VUE.JS

REACT.JS

REDUX

MOBX

SAGA

MATERIAL DESIGN

SCSS

WEBPACK

BABEL

GULP

JEST

KAMRA

MOCHA

ENZYME

PROTRACTOR

PWA

PythoN

Java

MySql

PostGreSQL

MongoDB

Docker

AWS

Google Cloud

Zeit

heroku

ansible

kubernetes

TERRAFORM

prometheus

Kibana

grafana

Sentry

web scraping

ElasticSearch

Solr

NGINX

Apache server

RabbitMQ

REDIS

Gunicorn

Django

Flask

Express.js

Jenkins CI/CD

Swagger

OpenAPI

Firebase

Twilio

Okta

iOS

Swift

Android

Flutter

Hadoop

Hive

Cloudera

CASSANDRA

SPARK

Java MapReduce

Pig

hive

Tez

luigi

avro

sqoop

python streaming

falcon

hbase

Kafka

YARN

Amazon Elastic MapReduce

Airflow

Spark Streaming

HDFS

Oozie

HCatalog

Flink

Impala

storm

Spark SQL

Linux

Git

FUNCTIONAL PROGRAMMING

digitalocean

docker swarm

Custom Linux Scripts & Configuration

Consul.io

CoreOS

logstash

+ 100 more...

Select portfolio projects

Telecom

San Francisco, US

Enterprise Resource Management

enterprise system

back-end

front-end

Intuitive application for resource planning and managing tasks that helped our client boost the efficiency and reduce operating costs.

Electromobility Mobile App

New York City, US

Orange Charger LLC

mobile

back-end

devops

Mobile app connecting extensive back-end system with modern UI/UX design, that enables property owners offer renters a simple vehicle charging solution.

Large-scale recruitment

USA and Europe

Recruitment Experience

mobile

back-end

recruitment

front-end

business

We assembled a core technology team (Machine Learning, Software UX/UI, and operations) for several company departments. We recruited 26 people for a Scandinavian corporation, including developers, UI/UX designers, managers and more.

Highly satisfied clients, world-wide

“Tom runs a unique IT consulting firm, DevsData. I have the pleasure of working with him as business partners on a big-scale digital transformation project for Varner Group – a European fashion group with 14 thousand employees worldwide. DevsData has assembled the core Machine Learning, Software, and UX teams for the operation (26 people in total). I can personally guarantee their dedication, ability to understand the business needs and to track down those exceptional individuals (we’re very picky) wherever they are located. ”

“I interviewed about a dozen different firms. DevsData LLC is truly exceptional – their backend developers are some of the best I’ve ever worked with. I’ve worked with a lot of very well-qualified developers, locally in San Francisco, and remotely, so that is not a compliment I offer lightly. I appreciate their depth of knowledge and their ability to get things done quickly. “

“DevsData demonstrated a strong degree of proactivity, taking time to thoroughly understand the problem, business perspective and continuously suggesting performance and usability enhancements. Their app exceeded my expectations. I’ve worked with DevsData on numerous projects over the last 3 years and I’m very happy. Being both responsive and honest in communication, their team is a true partner.”