We design and develop web and mobile applications

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Metreno - Business Consulting


Business Consulting

A SaaS software product for tests generation, sales & management. The platform allows the client to efficiently generate, distribute and administer HRM-related tests and surveys to their corporate customers.

Global Emergency Overview - NGOs / Nonprofit Organizations / Third Sector

Global Emergency Overview

NGOs / Nonprofit Organizations / Third Sector

The solution is a SaaS system with native Android and iOS apps that enables NGOs to share up-to-date content generated in the Disaster Needs Analysis documents by the client. The system supports humanitarian aid operations and addresses the needs of disaster-affected people and institutions, e.g. the local media. 

Global Sourcing Platform - B2B Sourcing Management Platform

Global Sourcing Platform

B2B Sourcing Management Platform

The GSP application is being developed to reduce the duration of sourcing projects by standardising and automating the processes involved. At its core, a supplier database and a workflow tool enable the client to efficiently conduct global sourcing projects in emerging markets.

ViewWorld - NGOs / Nonprofit Organizations / Third Sector


NGOs / Nonprofit Organizations / Third Sector

ViewWorld is a SaaS system combined with native Android and iOS apps. It is meant for NGOs, associations, and businesses, and it fosters timely, effective and reliable transfer of information from the field to the decision-makers in the organisations. 

TraceMyCall - SaaS system for call analytics and marketing optimization


SaaS system for call analytics and marketing optimization

TraceMyCall is a SaaS platform designed to track and monitor calls that are generated from organic search keywords, pay-per click ads, websites, or print marketing materials. With real-time call analytics it helps companies to identify the channels and messages which perform best.

FairFunds - Online loans marketplace


Online loans marketplace

An online multi-sided platform for those who are ready to lend as well as the businesses looking for fast financing sources. Better returns for investors and lower credit costs for borrowers outside of the banking world. 

Client satisfaction

Our clients and their customers

AIG, Allianz, Care
UNHCR, Siemens, H&M
Philips, Acaps, Danone
BP, Yves Rocher, OCHA
Boston Scientific, VSL, Nespresso
DNB, Barry Group, NRC
Statoil, Unitron, Grundfos
Adecco, Volvo, HelpAge
Oticon, JIPS, Rockwool
Oriflame, Danish Red Cross, British Sugar

Why Selleo?

Selleo is a Custom Software Development House and a Rails Outsourcing Company. In our work we focus on Ruby on Rails Application Development (developing a web-based, business-focused Rails applications and Ruby applications) and Custom Software Solutions (vendors develop Ruby on Rails custom software for a single customer and it can accommodate that customer's particular preferences and expectations). We also possess knowledge and understanding of Agile/Scrum methodologies. Through the years, as a Ruby on Rails outsourcing software development providers, we have gained rich experience in:

Software Development Outsourcing 

(working as a vendor or custom software provider a client can choose to outsource the entire product development or to outsource partial product development. In the first case, a client’s company has an idea of a product and with our business and technology consultants works onto the specification and we are entirely responsible for the application production. This option is the most appropriate for a new products) 

Cloud Development 

(helping our clients to save costs and increase competitive advantage while implementing SaaS solutions), 

Rails Software Development 

(Rails is a framework, which automates time-consuming, repetitive tasks (things that were once done manually) so that Ruby on Rails vendor developers can focus on solving problems connected with client’s application and implement new features) 

Ruby Software Development 

(Ruby is the object oriented language dominant in Rails applications. It is said that it is easier to maintain a custom software application written in object oriented languages. Client’s company can benefit from the object oriented approach because easier maintenance means a longer, revenue-generating lifespan for your app). 

According to this experience we also provide our clients with Web Consulting Services and IT Consulting Services (discovering the latest industry trends and strategies for successful offshore and nearshore outsourced software development) and Ruby on Rails Enterprise Application Development (solving the real problems of developing Rails applications in a changing business environment).

Creating Business to Business Software as a Ruby on Rails Developers (delivering small prototypes for SME’s and large enterprise applications for big firms), we operate with clients from Europe and USA (both as an offshore and nearshore software development company) in diverse business domains:

Business Process Management Tools Developer 

(Business Process Optimization involves optimizing process flows of all sizes, crossing any application, company boundary and connecting process design and process maintenance), 

Educational Software Developer 

(the primary purpose of Education Software Development is enabling online / offline teaching or self-learning providing software full of interactive and social features connected with the given issue ), 

Healthcare Software Developer 

(e-health Developers delivers software solutions supporting medics in delivering safe health to patients in their care), 

Survey Developer 

(programming and deploying custom designed online surveys with multimedia integration), 

E-Publishing Developer 

(enabling our customers, through digital publishing, distribution of newspapers and books to millions smartphones, tablet reading devices and e-readers users, e-publishing development includes the digital publication of e-books, EPUBs, electronic articles, and the development of multimedia reading applications or interactive comics), 

Retail Software Developer

Real Estate Software Developer 

(creating web-based and mobile application which can be used in real estate industry for such processes as development and construction, budgeting and forecasting or asset and portfolio management).

We are looking for well sought out solutions to help our business partners in creating better and meaningful software applications.

As a Ruby on Rails Development Outsourcing team, we are passionate Rubyists and some of us can be called fanatic Rails Developers. Our teams are accustomed to the open source workings of the Rails community and we also do some open source contributions. Finding a qualified Ruby on Rails developer is not a challenge with us. We have chosen Ruby on Rails to write better software in less time. Our clients, which recognize us as a Ruby on Rails Europe Developer, appreciate results, and Rails enables to deliver custom software applications which fulfill all clients requirements. Ruby on Rails consists of two components: an object oriented programming language called Ruby, and a Web development framework called Rails. We use them both to develop meaningful web applications for our clients from Europe and USA and serve them as the experienced business offshore , nearshore outsourcing partner (in B2B and B2C domains).

Our company main domains of expertise are:

B2B Application Development (enabling enterprises automatisation of key business processes like customer-relationship management, procurement, warehousing, materials purchasing, distribution and electronical collaboration with trading partners) 

Educational Software Development (enabling educational organizations and Publishing Development House providing proactive education & training to a large number of people), 

SaaS Development, e-commerce Development (enabling our clients using such modules in their software as Securetrading Payment, Rails CRM, Ruby SCM and Workflow Development ), 

Real Estate Software Development (enabling brokers, agents and its clients to distribute and display information about listings, loans, and other home buying materials), 

Healthcare Application Development (enabling a two-way flow of information between the patients and the doctor to complex medical practice management software including the day-to-day operations of a medical practices)

Social Network Development (developing for our clients software full of social activities enabling to manage online communities with unique and fully customized features and providing solutions as a Facebook Developers or Youtube Developer).

Based on the functional and non-functional requirements provided by our clients we create Technical Specifications and we often work as an Integration Developer specifying, designing and coding solutions that meet or exceed business objectives. This job included working at Integration Services, their implementation, testing and maintenance. It also requires a solid understanding and experience in building multithreaded applications and deep knowledge of data structures and relational databases. Checking our Portfolio one can find that we are serving our clients as:

Paypal Developers (developing e-commerce websites and applications with PayPal including such APIs as Transaction Details, Transaction Search, Refund Transaction ), 

QuickPay Developers ( QuickPay is an online service that allows you to send money to and receive funds from virtually anyone who's enrolled with an e-mail address. It's fast, convenient, and secure, and it's easy to get started), 

Google Checkout Developers (integrating Google Checkout API to a custom software to allow buyers to purchase services and goods with the use of a credit or debit card. This solution can be implemented in over 140 countries providing checkout process which can be characterized as a fast and secure one. Among the countries one can find some countries which have some experience in software development outsourcing like outsourcing India, outsourcing Indonesia, outsourcing China, outsourcing Bulgaria, outsourcing Philippines, outsourcing Jordan, outsourcing Singapore, outsourcing Thailand, outsourcing Lithuania, outsourcing Egypt, outsourcing Malaysia, outsourcing Estonia, outsourcing Chile, outsourcing Hungary, outsourcing Poland, outsourcing Czech Republic, outsourcing Ukraine, outsourcing Romania, outsourcing Latvia). We also perform an advanced integration with your existing internal systems using the XML API or HTML API) 

Google Maps Developers (adopting Google Maps API for Business into your software or website to visualize location based data or engage your customers with embedded interactive maps), 

Google Places Developer (integrating into your business software solutions the Google Places API which returns information about Places — defined within this API as establishments, geographic locations, or prominent points of interest — using HTTP), 

MailChimp Developer (connecting MailChimp to your CMS, CRM, your blog, your e-commerce shopping cart, mobile application etc.) , 

Most of the development process at Selleo can be called Ruby Development and API Development (API is an application programming interface - a source code-based specification intended to be used as an interface by software components to communicate with each other) because we are Ruby on Rails Poland company and our work can be described as Rails Outsourcing or Ruby Outsourcing. In 2011 we have started a Cross Platform Mobile Development and are designing and developing applications which work on various platforms: desktop devices, tablets and smartphones. We have chosen Mobile Cross Platform way and become Sencha Developers (working with Ext JS, Ext GWT, and Sencha Touch frameworks), Sencha Touch Developers (using a high-performance HTML5 mobile application framework to build fast and impressive apps that work on iOS, Android, BlackBerry, Kindle Fire, and more.) and Phonegap Developers (PhoneGap uses standards-based web technologies to bridge web applications and mobile devices, it allows us to author native applications with web technologies and get access to APIs and app stores such as Apple Store or Google Play). We are not entirely Phonegap Development Company because most of our work is still Ruby on Rails Outsourcing SaaS, Ruby on Rails Security or Ruby on Rails Reporting but the important part of it become Cross Platform Development and Phonegap Applications Development.

We are also an iOS and Android native mobile applications developer.