We build life-changing software products

In DO OK we produce life-changing software. We like to say that developing software is our side job, our focus is on accommodating it to its users.

We don’t pursue projects that are unwanted – so you can expect substantive feedback and actual assistance in the process of developing the solution.

We are an international team with locations in Poland, the Netherlands, and Denmark.

Technically, we are top in custom-software with scalable backends built with Python, Java, or Go and Javascript engineering with node.js, react or angular, powering up end-client apps with mobile technologies (React Native, Objective C, Swift, Android).

We've delivered more than 100 projects on time, and 90% of our customers refer us to others.

Drop an email to [email protected] and let's have a non-binding conversation.

 
$5,000+
 
$50 - $99 / hr
 
50 - 249
 Founded
2010
Show all +
Wrocław, Poland
headquarters
other locations
  • Trasa Połnocna 15
    Zielona Góra 65-119
    Poland
  • Mijnsherenweg 33
    Kudelstaart 1433 AP
    Netherlands
  • Grønningen 17
    København 1270
    Denmark
  • Aianduse tee 65
    Tallinn 11913
    Estonia

Portfolio

Key clients: 

BMLLtech, Relabee, SmartPatient, Versa.company, Voxgig, Zilveren Kruis, Zwolnieni z Teorii

We're thrilled we had an opportunity to work with Zwolnieni z Teorii team on their product that could change the lives of young people. 

The platform created by the Foundation Zwolnieni z Teorii (formerly Social Wolves), included on the Forbes 30 Under 30 Europe list , alongside Adele and Malali Yousafzai, and awarded in the group of Innovators Under 35 Poland.

DO OK was responsible for thriving a change into

web development modules available for teachers, who do care about young people leading thousands of projects online.
BMLL - Powerful platform for analysing Limit Order Book and Complementary Datasets in the cloud. Image

BMLL - Powerful platform for analysing Limit Order Book and Complementary Datasets in the cloud.

Problem

The financial markets are complex. Over 150 different trading venues, over 10,000 liquid tickers. Different exchange feeds, different protocols, different data structures, different trading rules. All changing over time. For companies and their researchers this is a lot to take in and manage before they can assert their true value-add – generating insights from the data. BMLL’s offering provides

a utility in the form of a platform whereby research scientists can immediately lever their statistical skills to quickly and efficiently investigate the problems their organization faces.

 

Project background

BMLL provide a powerful platform for analysing Limit Order Book and Complementary Datasets in the cloud. However, building up this bedrock of data for the analytics to run on was not going to be easy. The challenge was to create multiple parsers to analyse and normalise each of the datasets in order to build up a solid history of data for the platform.

Project challenges

dook.pro provided a number of python developers to work with our product experts to boost the number of parsers we could develop in parallel. This enabled us to launch the product on-time with an impressive amount of data available from day one. dook.pro have continued to enable the onboarding of more datasets in the interim.

 

 

 

Relabee Image

Relabee

Relabee is a Danish tech start-up that wants to help primary caregivers such as family, friends, neighbours and others. We provide digital solutions to support them through hard and stressful times. Relabee helps you with tasks, communication and planning which you have during taking care of the person who needs special care, due to illness, old age, a handicap, etc. Easily and quickly establish your network of helpers and

never feel alone again!

Problem

In Europe 80% of all care and help received by patients is provided by the primary caregivers, such as family and friends. This is very hard and many of the caregivers actually get stressed and sick themselves, because of the tremense pressure. We want to give them tools that can help and bring some relief and our aim is to prevent that primary caregivers get sick themselves.

Project background

Relabee start-up team came to DO OK with the product idea and clear intentions - let’s build together an app to help primary caregivers. After few days meetings and discussion both sides decided to work together with this product.


Project challenges

In Relabee we had made the design and UX/UI of the solution and we needed a suitable and reliable partner to develop our platform both on web and for mobile devices. DOOK is responsible for the backend, the API, and the iOS and Android apps.

Versa - never loose your luggage again Image

Versa - never loose your luggage again

About the Client

Versa Company is a Dutch start-up with a passion for traveling. They’re based in the Hague and have a pure focus on partnerships with airlines, travel management companies, baggage manufacturers and retailers.


Problem

On everyday matter millions, of people are struggling having lack of knowledge on what is going with a suitcase. Guys from Versa

disrupt that state-of-art through developing a product which is a luggage tracker device. Versa product in your suitcase can track your luggage everywhere around the world.

Project background

Versa was developing a hardware product without the adequate software solutions to complement it. It won’t be possible to deliver a solution to customers this way. Versa had already a company in Poland that worked with to develop hardware and the tracker, but a competent software development company to build on both Android and iOS, as well as handle a backend development was needed.


Project challenges

In Versa there were no existing wireframes. Basically briefed with requirements documents, a couple of calls, and a face-to-face meeting how DO OK could help. Versa’s team had a clear focus on the product and DO OK team helped figure out the best way to achieve what was wanted from a technical implementation and concept perspective. We are responsible for the backend, the API, and the iOS and Android apps.

Catch-up - The best book reviews and opinions from professional reviewers and experts on your phone. Image

Catch-up - The best book reviews and opinions from professional reviewers and experts on your phone.

About the Client

Catch-Up B.V. is a Dutch start-up where the owner is fan of newspapers, magazines and all the professional reviews. Catch-Up is the book-review app. The best expert book reviews from user favorite newspapers in one app. Catch-Up provides a unique value to consumers, newspaper media and publishers.

Problem

In Netherlands professional reviews about the product

itself are really desired and the owner of Catch-Up B.V. wanted to create the app which gathers all the biggest and the most respectful newspapers in one place. Now it works! User can chose the newspaper(s) as a source(s) and category in which it is most interested and get latest reviews on daily basis. User does not have to visit all favorite newspapers to read them as all is scraped in one app.

Project background

Catch-Up provides an expert-opinion aggregator focused on product reviews from newspapers and magazines.

Project challenges

How to scrap reviews from newspapers where every single one has different structure? How to find product within the article when it is hidden in the text? How to manage the content? How to deal with the app where previous company failed?

Testaviva - TestaViva A digital platform where people can easily and free of charge create and store legal documents. Image

Testaviva - TestaViva A digital platform where people can easily and free of charge create and store legal documents.

About the Client

TestaViva makes a legal business in Denmark. With the online platform, it’s easy to get the legal documents online. They help you to make sure you have legally secured yourself and taken a position on what should happen to your inheritance and your values. It’s not only about the documents. There is a lot of other values you probably want to consider like digital inheritance, intellectual

properties, estates and many more where they can help you.

Problem

Basing on the experience of the founder with inheritance case that went wrong, the aim was to help other people avoid such situations. With TestaViva you can easily and free of charge design your will, marriage, co-operation and benefit statement. Those documents and decisions will be securely stored and after you pass away, TestaViva makes sure everything will be done just like you have decided.


Project background

TestaViva had some bunch of frontend work, which was needed before the launch of the site. They were looking for HTML, CSS, and JavaScript people who could work fast and effectively.


Project challenges

The client had tight deadlines with planned demos for partners. To help TestaViva, our team was working even on weekends. This way the two months worth of work we did in one month and the final deadline was reached with client success.

Reviews

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Web App Development for Online Music Database

"They [Dook.pro] put a lot of heart into the idea and proposed many things. They understood us as a client, which was very important for us."

Quality: 
4.5
Schedule: 
4.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
Confidential
Project summary: 

As the client worked to create their portal, they hired Dook.pro to develop the back-end and front-end functionality according to their specifications and also contribute to the layout.

The Reviewer
 
1-10 Employees
 
Poland
Co-founder, Online Music Database
 
Verified
The Review
Feedback summary: 

Dook.pro performed well throughout the project. The agency went beyond the simple fulfillment of requests and successfully contributed advice and feedback. The client praises Dook.pro for their professionalism and recommends the agency to others.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Please describe your organization.

My organization developed a music project describable as an IMDb [Internet Movie Database] for music, with information on bands, singers, and so on.

What is your position?

I am one of the cofounders.

OPPORTUNITY / CHALLENGE

What business challenge were you trying to address with dook.pro?

Our goal was to create the portal. We were looking for someone who could develop the entire project.

SOLUTION

Please describe the scope of their involvement in detail.

They developed the back-end and front-end functionality using our specifications. They worked on the layout and all the programming work.

How did you come to work with dook.pro?

We researched different companies locally. We specifically wanted Django developers. We were looking for a vendor that would not be too far away from us, and dook.pro is located in the same city. They were able to complete our goals and made the best offer. It was a large project, and negotiations took a long time.

What is the status of this engagement?

The work has been completed.

RESULTS & FEEDBACK

Could you share any statistics or metrics from this engagement?

I cannot share any metrics. The project has shut down.

How did dook.pro perform from a project management standpoint?

They presented a mockup of the work to us, and made their own suggestions, rather than just following our plans. The work was separated into stages and done professionally. Their overall cooperation was excellent. Their time and people management skills were great. We addressed hundreds of issues in detail. Project management was done using Trello.

What distinguishes dook.pro from other providers?

We gave them 50 pages of ideas for our project, which they were able to translate into something tangible. They put a lot of heart into the idea and proposed many things. They understood us as a client, which was very important for us.

Is there anything dook.pro could have improved or done differently?

They didn't do anything wrong. Any issues were caused by interferences with us and other outsourcers.

4.5
Overall Score
  • 4.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 4.5 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

Software Development for Healthy Lifestyle Platform

"DOOK.pro excels at understanding your taste and not just building the software you think you want, but building the software you really need."

Quality: 
5.0
Schedule: 
4.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
2014 - Ongoing
Project summary: 

The client hired Dook.pro to build the revenue platform for their system, assist in the strategic process, and add functionality to the core system.

The Reviewer
 
1-10 Employees
 
Denmark
Jens Lund
Co-founder, Breakbuddy
 
Verified
The Review
Feedback summary: 

Dook.pro performed well throughout the project and helped the client significantly raise their conversion rate. The agency is praised or their project management and integration. The client highly recommends Dook.pro to others.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Please describe your organization.

It's an entrepreneurial company.

What is your position?

I am one of the co-founders.

OPPORTUNITY / CHALLENGE

What business challenge were you trying to address with DOOK.pro?

We were a two-man team working on this IT [information technology] project, and we couldn't get enough momentum on the development, so we were looking for a partner that knew Django. We needed more manpower, and we needed somebody who could think for them self, which is rare when you're outsourcing.

SOLUTION

Please describe the scope of their involvement in detail.

We had a minor project. It was a system to make people do more exercise when they are working at a corporate building. We had some few core functions we needed to expand, and we needed some more functionality in order to gain more revenue. They've built the whole revenue platform for the system, and they challenged us on how to keep customers coming in and convert them from free customers to paying customers. They built the gamification part of the project as well. We had some few basic badges and a reward system, and they added to it. They took the core system and made it a good product.

How did you come to work with DOOK.pro?

I went to PeoplePerHour and I found Dmitri, the CEO from DOOK.pro. He had a profile in there. We had a brief talk through PPH and then we talked via Skype and laid out the basics for the project. Then, he gave me a price per hour, and we started with the project. It was a running project with an hour rate, with a running registry of the hours they produced.

Could you provide a sense of the size of this initiative in financial terms?

I think so far we've spent around $10,000 with them.

What is the status of this engagement?

We began the project with them one and a half years ago. We are still working with them at the moment.

RESULTS & FEEDBACK

Could you share any statistics or metrics from this engagement?

We converted 10 percent of our customers when we didn't use the guys at DOOK.pro. Now, we convert around 30 percent. In our world, that's huge.

How did DOOK.pro perform from a project management standpoint?

In my experience working with many freelancers is that the project management is terrible, and they kind of lose interest, but that wasn't the case with DOOK.pro. They used Trello for keeping up with the tasks and assigning tasks to us, back and forth. If I should rate it, I would rate it excellent.

What distinguishes DOOK.pro from other providers?

DOOK.pro excels at understanding your taste and not just building the software you think you want, but building the software you really need. They don't just build software. They're your partner in your development project. That's a rare thing.

Is there anything DOOK.pro could have improved or done differently?

In terms of outsourcing, no, I can't say.

4.5
Overall Score
  • 4.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
  • 5.0 Quality
    Service & deliverables
  • 5.0 NPS
    Willing to refer

App Development for Social Reading Platform

"DOOK.pro has provided us with an excellent level of service. They have a great team that is open to listening to the client."

Quality: 
4.5
Schedule: 
4.5
Cost: 
4.0
Willing to refer: 
4.5
The Project
 
$50,000 to $199,999
 
2012 - 2014
Project summary: 

Based on a recommendation, the client hired Dook.pro to write code and assist in the development of their application.

The Reviewer
 
2-10 Employees
 
Warsaw, Poland
Mirka Puczko
CEO, PeopleRead.me
 
Verified
The Review
Feedback summary: 

Dook.pro delivered high-quality work throughout the project. The client praised the agency for their thorough analysis of the software, their technical expertise, and their professionalism. Dook.pro is highly recommended to others.

The client submitted this review online.

BACKGROUND

Please describe your organization.

PeopleRead.me is a social online platform that embraces e-readers, authors, and publishers. Its concept is based on book clubs created by users. People can look at and read the libraries of friends and celebrities.

What is your position?

I am a co-owner and CEO of PeopleRead.me.

OPPORTUNITY / CHALLENGE

What business challenge were you trying to address with DOOK.pro?

We needed someone to develop our application. PeopleRead.me is a cloud system that manages access to books. Each book is stored as an individual file and has a different appearance in the reading rooms, user accounts, and e-readers.

SOLUTION

Please describe the scope of their involvement in detail.

DOOK.pro was the third company I cooperated with to develop the application. I found them, explained my idea, and told them what I wanted and what it would look like in the end. We had to write new code from the beginning.

How did you come to work with DOOK.pro?

They were recommended by someone, whose name I forget right now. They told me that dDOOK.pro was a good company that provided good-quality work. From there, I spoke with their head [Dmitrij Zatuchin], and we started work after that.

Could you provide a sense of the size of this initiative in financial terms?

It was in the $50,000 to $200,000 price range. Cost was important to me. Compared to other companies in Warsaw, they were reasonably priced.

What is the status of this engagement?

We've been working together for a long. I started my corporation at the beginning of 2012 and finished the project at the end of 2014. I also did a little module at the beginning of this year. In total, the engagement lasted two years and two months.

RESULTS & FEEDBACK

How did DOOK.pro do from a project management standpoint?

DOOK.pro has provided us with an excellent level of service. They have a great team that is open to listening to the client. We found them at a low point in our business; we were halfway through creating our platform that was full of software mistakes. DOOK.pro did a full analysis of what needed to be repaired. They made us feel like we were dealing with a professional technological partner, which was very important to our startup development process. I was satisfied with the product and with the price.

What distinguishes DOOK.pro from other providers?

When you have a startup idea, you count every penny. It's so important to work with a person who tries to understand your ideas, demands, and thoughts. They were always talking and discussing things and that was valuable. I felt like we were partners. DOOK.pro doesn't just say they understand – they discuss.

In hindsight, are there areas in which they could improve, or things you might do differently?

I don't think I'm the person to give them advice. I think their owner is talented. We have different ideas and business models. I am much more open to the clients and try to keep all my clients comfortable and try to talk to them a lot. He has a very strong, professional business.

We had a little problem with repairing bugs. When we finished the project, and I was no longer one of their main clients, it was hard for them to find time to help me with small problems. It's not anything major, they still will answer my phone calls and emails, sometimes; however, I had to wait in line, which isn't always comfortable.

4.5
Overall Score
  • 4.5 Scheduling
    ON TIME / DEADLINES
  • 4.0 Cost
    Value / within estimates
  • 4.5 Quality
    Service & deliverables
  • 4.5 NPS
    Willing to refer

Python Codebase Audit for Software Development Firm

"Should we need Python-specific expertise in the future, they would definitely be on my shortlist .... "
 

Quality: 
4.0
Schedule: 
4.5
Cost: 
4.5
Willing to refer: 
4.0
The Project
 
Confidential
Project summary: 

Do Ok Pro completed a comprehensive codebase audit of a custom Python-based solution. Their feedback and recommendations were essential as Python work was previously outside the team's skillset. 

The Reviewer
 
51-200 Employees
 
Philadelphia, Pennsylvania
Founder & Chief Technology Officer, Software Development Firm
 
Verified
The Review
Feedback summary: 


Their work resulted in key improvements made to the custom solution in question. Do Ok Pro pointed out several structural weaknesses and advised how they could be rectified. Their communication and project management skills were superb, and they'll be the first contacted if another audit is needed.

A Clutch analyst personally interviewed this client over the phone. Below is an edited transcript.

BACKGROUND

Please describe your company.

We provide a broad range of custom software development services across all industries. We have offices in Philadelphia, Chicago, San Francisco, and the Bay Area and currently have about 50 employees.

What are your role and responsibilities?

I’m the chief technology officer and co-founder.

OPPORTUNITY / CHALLENGE

Could you describe the business challenge that you were attempting to address when you first approached Do Ok Pro?

We had a codebase in Python, and we wanted an independent assessment of the quality of the codebase and of any technical challenges we might be facing. We then asked them for their recommendations based on their findings. Python is a little outside our area of expertise, which is why we needed their help.

SOLUTION

Could you describe the actual scope of work assigned to them?

We asked them to audit the codebase, give us a list of what they thought we should do with it, and give us their assessment of the overall quality of the codebase.

How did you come to choose Do Ok Pro as your partner?

I believe it was a personal referral from a member of one of our teams that we were working with on another aspect of the same project.

When was this project completed?

The project was completed in August 2014. It was just that one specific project, so that’s the only engagement that we’ve had with them. Since that time, we haven’t undertaken new Python work, so we haven’t needed to go back to them.

RESULTS & FEEDBACK

In terms of results, could you share any statistics, metrics, or user feedback that would demonstrate the quality of their performance?

Their work was very professional. Their communication with us was excellent, and they produced the report in a timely fashion. From a project management perspective, they were entirely approachable and reliable. We sort of audited their audit, and another firm we were working with saw a few things they didn’t catch, but I don’t think any one group is going to catch everything. So, overall, we were impressed with what they delivered.

We weren’t really surprised by the results of the audit. Their findings were that the codebase needed work and had some structural weaknesses, and they gave us a list of those and how we might rectify them. The audit didn’t really blow us away in terms of new findings, but that was expected and understandable. It confirmed a number of things that we had already suspected. Based on their recommendations, the team that was executing the project went ahead and developed a list of fixes and needed changes.

When working with them, is there anything that you would consider unique about their strategic approach or the way in which they interact with clients that distinguish them from other vendors?

This wasn’t a very big engagement, and the work was very straightforward. What we were asking them to do wasn’t something that was going to showcase a unique set of talents. We do very little work with offshore vendors, so I don’t have a lot of basis for comparison. All I can really say is that the experience was positive and should we need Python-specific expertise in the future, they would definitely be on my shortlist of qualified vendors.

Would you feel comfortable approaching them for another project with a similar scope of work?

I absolutely would. I might look elsewhere so that I could work with someone in a closer time zone, but I’d certainly be open to engaging them again.

What advice, if any, would you give to a future client of theirs?

Nothing that they probably wouldn’t do anyway, which is, of course, that you want to screen your vendors thoroughly and directly test their technical skills.

4.0
Overall Score
  • 4.5 Scheduling
    ON TIME / DEADLINES
  • 4.5 Cost
    Value / within estimates
  • 4.0 Quality
    Service & deliverables
  • 4.0 NPS
    Willing to refer

Development for Software Dev House

“Their developer was hardworking, professional, and focused...”

Quality: 
5.0
Schedule: 
5.0
Cost: 
5.0
Willing to refer: 
5.0
The Project
 
$10,000 to $49,999
 
May - Sept. 2018
Project summary: 

DO OK provided development services, with a Node.js developer augmenting the team working on a project for a third-party client.

The Reviewer
 
201-500 Employees
 
Poland
Project Manager, Software House
 
Verified
The Review
Feedback summary: 

The development services from DO OK ensured the project was completed successfully, adding a geospatial element to the company’s portfolio and helping them to attract more clients. They were professional, responsive, and worked in an effective iterative approach throughout the work.

The client submitted this review online.

BACKGROUND

Please describe your company and your position there.

I’m a project manager at a software house that helps businesses to choose and build the right solutions.

OPPORTUNITY / CHALLENGE

For what projects/services did your company hire DO OK?

We needed resources to extend our team working on a project for a third-party client.

What were your goals for this project?

We wanted to stabilize one of the main features of our client’s project.

SOLUTION

How did you select this vendor?

We were looking for professional and responsible resources and felt that DO OK were a good match for us.

Describe the project and the services they provided in detail.

They helped us with a geospatial project for our client, providing a Node.js developer who specialized in databases and map printing. They worked on developing software for customer, improving its key functionalities, and getting feedback from its users.

What was the team composition?

We worked with a Node.js developer.

RESULTS & FEEDBACK

Can you share any information that demonstrates the impact that this project has had on your business?

Thanks to this project, we improved our portfolio of geospatial services and were able to get more customers in that field.

How was project management arranged and how effective was it?

They worked in an iterative approach using agile frameworks such as Scrum. For communication and progress monitoring, we used Jira, Github, Slack, and Skype.

What did you find most impressive about this company?

They had a brief response time, great communication, and a professional approach. Their developer was hardworking, professional, and focused on delivering our project.

Are there any areas for improvement?

No, we would like to maintain this level of cooperation and communication.

5.0
Overall Score
  • 5.0 Scheduling
    ON TIME / DEADLINES
  • 5.0 Cost
    Value / within estimates
    Everything was tailored to our needs.
  • 5.0 Quality
    Service & deliverables
    We got what we were promised—good quality of work and great team extension.
  • 5.0 NPS
    Willing to refer
    Definitely, I would recommend a cooperation with them.