Hire Flask Developers With STARNAVI By The Book

We’ll provide legal compliance for your contracts with developers from Eastern Europe. With our legal entity in the E.U., you can hire without delays and following local employment legislation. BPO services are included.

Our Process

Hire Flask Developers In Four Easy Steps

It's as easy as counting from one to four. At least, it's easy for you, because we'll do all the job.

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Tell StarNavi about your requirements

01. Tell us about your requirements

We'll be happy to know about your project and see the list of skills you expect from your developer. Give us a hint – and we'll find a gem for you!

Pick the best devs from the hand-picked ones

02. Pick the best devs from the hand-picked ones

We offer you a list of candidates who meet your requirements. You decide who is worth interviewing. We pre-vet candidates you have your eye on.

Meet the best candidates online, in-person

03. Meet the best candidates online, in-person

Make a complete impression on the candidates by meeting them face to face. Assess their hard and soft skills. Make the final decision.

Hire, onboard and enjoy

04. Hire, onboard and enjoy

We'll assist your company while hiring – all the paperwork, including contracts and NDAss our task. Enjoy the new stage of your product development to the fullest!


Flask is one of the most in-demand back-end frameworks for web applications. Whether you build an e-commerce platform, a social media application, or an online university, you may want to include Flask in your tech stack as far as you’re interested in developing a highly scalable web application. Consider following in the footsteps of the teams that built stellar software products with Flask: Pinterest, Netflix, Reddit, Uber, Airbnb, and many others.

STARNAVI's Strengths

Take advantage of the partnership with a team of professionals who know how to hire developers cost-efficiently, within strict deadlines, and with full compliance.

Relevant candidates

Relevant candidates

Our goal is a match between your requirements and the developer's hard and soft skills.

Administrative support with StarNavi

Administrative support

We'll manage to sign the contract's and NDAs. Our legal entity in the EU is at your service.

Long-Term Warranties with StarNavi

Long-term warranties

We'll offer you a replacement if our developer doesn’t meet your expectations. You win anyway.

Meeting tight deadlines with StarNavi

Meeting tight deadlines

Our pool of pre-vetted developers is big. We're focused. Get ready to onboard your new dev in no time.

Boosting your competitiveness with StarNavi

Boosting your competitiveness

Augment your distributed team by skilled developers and create software products able to win the marker race.

High Cost-Effectiveness with StarNavi

High cost-effectiveness

We do our best to optimize your staffing budget by hiring developers offshore and helping you build a cost-efficient remote team.

Flexible Payment Models with StarNavi

Flexible payment models

Revamp your budget by picking the most convenient model. Pay hourly, bi-weekly or monthly.

High retention level with StarNavi

High retention level

Our goal is to build strong relationships between an employer and a developer. Sustainable results make us happy.

Remote Mode with StarNavi

Remote mode

We'll hire developers remotely for remote work. You'll save tons of time and effort while hiring and coordinating a distributed team.

Legal status with StarNavi

Legal status

STARNAVI's legal entity in the EU and our expertise ensure the legal background for your team augmentation. We guarantee compliance.

Flexible scaling with StarNavi

Flexible scaling

Vary the number of developers and their contract duration according to your project's needs. Scale up your team comfortably.

Unambiguous leadership with StarNavi

Unambiguous leadership

We're eager to stay on top of the market and build proactive teams. We set the standards and trends, not we follow them.

Need a Specific Tech Stack? Let us know!

Hiring devs with rare or even unique skill sets is our thing. Tell us about your expertise gap – and we’ll find a gem for your collection of talents.


Learn More About Flask Development

Skills to Look for in a Flask developer

Since Flask is rarely the only technology used for building an application, developers need to have a skill set that includes several technologies and tools. Each particular software development project requires specific skills from programmers.

For example, to build a blog, proficiency in Python, Flask, basic front-end technologies (HTML, CSS, JavaScript), test tools such as Git, and an understanding of database management is sufficient. A developer needs more skills to create an e-commerce platform. In addition to the essential skills mentioned above, a developer should be experienced in integrating payment gateway systems, using cashing mechanisms and more advanced testing tools. Furthermore, knowledge of security protocols and standards is required.

For building a complex e-commerce platform, a developer should know at least one of the front-end frameworks and be experienced in using containerization tools and cloud technologies. In addition, the knowledge of machine learning frameworks is highly desirable.

Taking into account the considerations mentioned above, it’s possible to compose a generalized list of requirements for a Flask developer. However, composing a specific list of skills for a particular position should be delegated to a team. Here is a list of skills to consider:

  • the solid knowledge of Python and Flask;
  • experience in using Werkzeug WSGI and Jinja2 – two basic technologies on which Flask is based;
  • the knowledge of front-end technologies – meaning basics for junior developers and more advanced mastery for senior devs;
  • the mastery of using testing and debugging tools;
  • experience in cloud technologies implementation;
  • the solid knowledge of database management systems (MySQL, PostgreSQL, SQLite, Oracle, and others) and SQLAlchemy, an Object-Relational Mapping (ORM) library.

You can expect a wider range of skills from a senior Flask developer. Strong leadership, a business mindset, a talent for mentorship, and experience in project management are required for a senior developer, in addition to tech skills.

How Do I Hire Flask Developers?

The steps for hiring developers are the same regardless of the destination, i.e., you hire onshore, nearshore, or offshore. In the first step, you search for candidates, following vetting them in the second stage. Finally, you handle formalities and seal the deal. Seeming more challenging to manage, the remote format also provides advantages, such as access to the vast pool of candidates from different regions.

Here is the general algorithm for those who are in search of a Flask web developer for hire:

  • Setting requirements. The list of requirements is defined by the project’s and the role’s peculiarities. For example, if a project is based on microservices architecture, one required skill is the knowledge of Docker and Kubernetes. If a Flask developer is expected to deal with data modelling, experience in SQLAlchemy or Requests is needed.
  • Contacting and pre-vetting candidates who potentially fit the position. The impression made by a resume needs verification. Whether a candidate’s skill set really matches the position’s requirements, one can check through a brief interview and a short assignment.
  • Vetting candidates. At this stage, a more in-depth check of the developer’s strengths is used. The procedure includes a tech interview, code review, or a live coding session. It’s up to an employer to decide what vetting techniques are suitable for a particular position.
  • Hiring and onboarding. After signing contracts and NDAs, a developer becomes a part of your team for a fixed period of time. The most challenging part is providing the legal compliance of the collaboration, especially when you hire offshore.

Hiring with STARNAVI provides you with robust vetting and compliance with data protection laws and employment regulations. The result is the contracts with developers who satisfy your technological criteria and expectations for communication, time-management skills, motivation, and work ethic.

Why Are Flask Developers In Such High Demand?

When choosing a back-end framework, comprehensive technologies like Django or Ruby on Rails are often preferred as they are one-stop shops for software development. However, flexibility and the ability to scale quickly are priorities for many projects. It’s one of the reasons why Flask's popularity has grown in recent years. In January 2018, a microframework ranked fifth in a rating of the most popular back-end frameworks. (Laravel, RoR, and Meteor were the top leaders.) By March 2021, Flask had risen to the third position and has maintained that position since then.

Another reason Flask has become more in demand is an increase in popularity in Python and microservices. Developers skilled in Python can jump into building an application in Flask quickly and easily. For employing companies, it means the ability to hire Flask developers in no time since the number of developers proficient in Python was estimated to be 15,7 million engineers in 2022; it was the second most popular programming language, according to the same rating.

Flask is well-suited for building applications based on microservices architecture – a structure consisting of independent components that can be developed and deployed separately, making development, testing, and debugging easier.

Flask versatility is one more argument in favor of its popularity. One can build applications for a wide variety of industries with Flask: e-commerce, health care, education, tourism, and others. Once built, an application can be modified easily to enrich the users’ experience.

By hiring a Flask developer, you augment your team with a professional skilled at building the back end of custom and easily scalable applications for businesses and end users. With a reliable staffing partner, you can hire worldwide and benefit from collaboration with offshore developers whose expertise is high while the salary expectations are reasonable. STARNAVI will deliver your team’s augmentation within short deadlines and with legal compliance.

What Does A Flask Developer Do?

A Flask developer builds the back end of web applications using a microframework, its extensions such as frameworks and libraries, and other tools which optimize the development process. A Flask programmer can create applications for many different industries, including:

  • e-commerce – online shops, marketplaces, payment gateways, customer service systems, marketing platforms (Fashop, FlasKMart, Flask-Marketplace);
  • healthcare – telemedicine platforms, clinical trials management systems, personal health, and wellness apps, Electronic Health Records (MedUSA, OpenMRS, Synthia Health);
  • finance – stock market analysis tools, payment processing systems, budgeting apps, trading platforms, loan management systems (Stripe, Koyfin, Mint);
  • education – online course platforms, learning applications (EdX, Khan Academy, Duolingo);
  • social networking – social media and networking platforms (Reddit, Pinterest, Meetup).

Project’s features that make Flask an optimal solution for building it are middle to big size, the perspective of fast scaling up or being modified soon after deployment. Flask empowers developers with tools for quickly implementing new features and allows for integrating other technologies to provide application customization. So the first mission of a Flask developer is to create a custom and easily scalable application. The second mission is to build a structure capable of handling large amounts of data, which is key for analytics, business intelligence, finance, e-commerce, and social media platforms.

To succeed, a developer uses a set of technologies, although Flask remains the basic framework. Combined with Bootstrap, a front-end framework, Flask can be used to build web portals and marketplaces. The tandem of Flask and Docker, a containerization tool, results in building enterprise applications and cloud-based web services. An e-commerce platform, a CMS, or a social network requires extending Flask with SQLAlchemy, an Object-Relational Mapping library. The number of tools helps developers handle the vital tasks of code testing and debugging.

Questions To Ask When Hiring Flask Developers

IT recruiters use questions to vet candidates – to evaluate their level of expertise and get a clear picture of developers’ strong and weak points. However, the pre-written and standardized questions can’t give a well-rounded impression since they aren’t honed to assess the candidates’ way of thinking and ability to apply best practices to the development process. That’s why STARNAVI’s friendly recommendation is to use a mix of techniques for vetting, adding to the standard questionnaire part of the interview such evaluation methods as live coding sessions and code reviews.

As for the questions, you can use them while keeping in mind that they should be adjusted to the developers’ seniority levels. The topics suitable for junior developers cover Python and Flask basics, while senior dev’s assessment requires more in-depth challenges. Here are examples of the questions for junior programmers:

  • What are Flask's peculiarities from other Python frameworks?
  • How do you ensure the connection between the framework and a database?
  • How do you create RESTful APIs using Flask?
  • What third-party Python modules did you use with Flask, and what for?
  • What does the typical Flask application structure look like?

While interviewing a senior Flask developer, it’s more logical to focus on more complex topics:

  • Describe your experience of developing an application in Flask from scratch.
  • How do you ensure security for a Flask application?
  • What technologies did you use to deploy Flask applications?
  • How do you provide Flask application scalability?
  • Give examples of how you used DevOps tools and technologies in combination with Flask.

It’s prudent to take into account that each set of questions should be tailored to the specific positions. You need a high level of tech expertise to make the correct estimation. At STARNAVI, senior developers are interviewed by senior engineers. It helps to understand candidates’ experience and problem-solving capacities comprehensively. As a result, with our support, you can build a team of engineers to tackle any challenge and provide your leadership in the industry.

Why Are STARNAVI Flask Developers Different?

STARNAVI developers stand out because they meet your project's tech requirements and your expectations for their motivation and effectiveness in remote work. We provide the match through comprehensive vetting and our attention to detail. We’re ready to hire remote Flask developers who fit the positions within the shortest deadlines since our pool of pre-vetted developers is abundant. STARNAVI recruiters stay in touch with the most talented programmers to quickly involve them in new projects.

Flask developers hired by STARNAVI are productive in remote work. They are experienced in being a part of the distributed teams; we can tell for sure that our devs are excellent at time management, able to strictly follow the deadlines, and proactive. We’ve been working remotely since STARNAVI’s very beginning. The remote mode, as a fundamental principle, allowed us to hire the best talents worldwide. Then, we found that this approach is supported by developers with whom we collaborate. Today, we can quickly hire Flask developers who work productively even if the overlap in working hours with the rest of the team is limited.

Our clients benefit from BPO services for developers. We take the burden of signing contracts and accounting off developers' shoulders so that they can focus on development tasks. Programmers can be sure that their benefits packages catch up with the labor market trends since we keep track of benefits relevance throughout the project. One of STARNAVI’s distinctive services is mentorship which provides developers with information and support while they work on a project, especially during the adaptation period. We’re happy when our developers feel elated and contribute to your product development with full enthusiasm from day one.

How Much Does It Cost To Hire Dedicated Flask Developers?

Software project budgeting is challenging since it involves a lot of factors to take into account. The most influential one is the project's peculiarities which entail the requirements for the developers' skill sets. These are the project duration, the developers' levels of seniority, and the region where you hire. Jumping ahead, the average Flask developer salary in the U.S. is $130,000. The corresponding figure for an Eastern European developer is $30,000.

First and foremost, one should outline the list of skills expected from a Flask developer. A microplatform, despite its comprehensive nature, doesn't work alone. Flask allows combining technologies to create a scalable web application, and it’s up to you to design a tech stack for your project and compose the list of skills required for developers. Most likely, you’ll want to see the knowledge of RESTful APIs, front-end technologies, testing, and many other tools in your devs. The wider the range of tasks, the higher the pay rate.

Project duration varies considerably depending on the application scale and complexity. You may need a couple of days to create a blog. To build a social media platform, you’ll need from several months to a year. The creation of an e-commerce platform will take over a year.

The seniority level is a criterion worth taking into account while budgeting staffing tasks. According to Upwork, the average hourly rates of Flask developers are as follows:

  • junior – $25;
  • middle – $45;
  • senior – $75.

As for the region of hiring, Eastern Europe is considered the destination providing cost-efficiency and a high level of expertise. Since the statistics on Flask developers’ salaries aren’t sufficient, let’s take a look at Python developers' pay rates, as they are closely associated with Flask development:

  • the U.S. – $120,000;
  • the U.K. – $57,000;
  • Germany – $60,000;
  • Ukraine – $43,200;
  • Poland – $33,600;
  • India – $12,100.

Eastern Europe is a happy medium between cost-efficiency in staffing and the quality of expertise. Additionally, the code culture and work ethics of Eastern European developers are similar to those of Western Europe and the U.S., ensuring smooth workflow and easy communication.

What Is Flask Particularly Good For? When Is Using Flask The “Right Choice” For A Project?

Flask is a Python-based microframework optimal for developing middle to large-sized web applications. The framework is used for building the applications’ back end - a connection between the UI, the database, the external APIs and web services. One can create web applications for various industries in Flask: e-commerce platforms, payment gateways, educational platforms, travel planning tools, patient portals, and social networks. The framework can also construct systems incorporating machine learning and artificial intelligence technologies.

Flask provides the following advantages for developers and, consequently, for the quality of a software product:

  • Framework’s modularity makes it perfect for building applications based on microservices architecture – the application’s structure consists of blocks that can be developed and deployed separately. Such an approach means flexibility and a high speed of development.
  • The variety of frameworks, libraries, and other tools which can be combined with Flask makes developers almighty. For example, by using Flask with WTForms, a Python library, a developer can create forms with built-in validation and security features. The combination of Flask and TensorFlow allows the development of applications with such features as image recognition, object detention, and language translation.
  • An application built in Flask can be easily modified by adding new technologies. For example, if you build the front end in Bootstrap and later decide that React.js suits your project better, you can migrate to React.js keeping the application’s functionality intact.

Other hand, Flask has some peculiarities worth keeping in mind while designing your project’s tech stack. Adding new technologies to the application broadens the opportunities but makes maintenance more challenging at the same time. If a technology happens to be discontinued, your team will need to find an alternative solution. For a developer who joins a project the mid-way, it will take more time to become familiar with the code compared to a project built on a more comprehensive framework like Django.

In some cases, you will need to invent solutions from scratch since there are tasks not covered by the Flask community - unlike the Django community, for instance, which has a larger number of pre-built modules and templates.

These are the reasons why Django is often considered the alternative to Flask. Which technology is better can be solved by considering the project’s peculiarities: functional requirements, expected scalability, and a budget. It’s noticeable that one can effectively combine the strengths of Flask and Django. For example, by creating an admin panel in Django (a tool that speeds up development but which Flask lacks), you can enjoy the best of both worlds. Therefore, with a team of skilled developers, you can always find a compromise between the required functionality of your application and the optimal tech stack.


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