All offersWarszawaJSSenior React Developer
Senior React Developer

Senior React Developer

Type of work
Employment Type
Operating mode


Mobica is home to exciting projects in the new generation of software and passionate people who are driven to advance the IT world. We develop the technologies of tomorrow for the world’s largest brands. Join us on this extraordinary mission!

Company profile

Tech stack


Job description

Mobica | Be Extraordinary_  

Mobica helps businesses build pioneering experiences for their customers. Headquartered in Manchester UK with offices across Europe and US, we partner with businesses across multiple industries - from aerospace to finance and semiconductors to automotive - providing them with access to incredible talent and engineering expertise across the entire technology stack

Mobica Way

  • Well-known Clients and Projects focused on the Technologies of Tomorrow - our work is already all around you. Almost all of our long term customers are instantly recognisable global brands developing some of the most interesting products and services you are using today and will use in the future. Our expertly crafted software underpins many of today’s amazing customer experiences. When you join us, you'll be both challenged and supported, and you'll be a part of something extraordinary. 
  • Empowered Mobicans driving their own careers – we empower our people to develop their skills and move forward in their careers. Our people are treated like partners, are encouraged to share knowledge and push the boundaries. We are there to help you with the opportunities to advance, learn and grow.
  • Ideas are prioritised over Hierarchy and Biases - in Mobica you are listened to and valued. We are building open communication and a safe environment. We've made it our mission to create a working environment where all team members feel welcome, protected from discrimination and have access to equal opportunities. 
  • We believe that employees should be happy – Mobica is a place where talented minds are recognised, nurtured and valued. We are early adopters of the hybrid working practices, you define the way where you work more productive - at home or in the office - we will create the environment for that. In addition to the competitive salary you are getting access to a range of virtual, offline and on-site events and platforms where you can learn, brainstorm, challenge, express yourself or simply have some fun and get new friends. Fruit and snacks are in the office to make your mood good. 

Job Description

Our Customer is a global leader in financial technology innovation, dedicated to delivering cutting-edge solutions that revolutionize the industry. Our team is committed to pushing the boundaries of technology and driving forward-thinking initiatives that shape the future of finance.

We are seeking a talented Senior Front-End Engineer with expertise in React to join our dynamic team. As a Senior Front-End Engineer, you will play a key role in developing and enhancing our front-end applications, utilizing your strong technical skills and passion for innovation to deliver high-quality solutions that meet the evolving needs of our customers.

Key Responsibilities

  • Collaborate with cross-functional teams to design, develop, and implement front-end solutions using React.
  • Utilize your expertise in JavaScript, including object model, DOM manipulation, event handlers, and data structures, to create robust and scalable applications.
  • Demonstrate a complete understanding of React and its main fundamentals, including JSX, Virtual DOM, and component lifecycle.
  • Leverage your experience with React workflows such as Flux, Redux, and Create React App to build efficient and maintainable code.
  • Ensure browser compatibility and mitigate browser-compatibility issues by supporting different browsers and employing best practices.
  • Develop and maintain RESTful APIs, JSON web tokens, and web services, while adhering to industry standards and best practices.
  • Utilize HTML/CSS and ES6 to create visually appealing and user-friendly interfaces.



  • Bachelor's degree in Computer Science or related field
  • 8+ years of strong experience working with front-end technologies, with a focus on React.
  • Proficiency in JavaScript, HTML/CSS, ES6, and code versioning tools like GIT and/or SVN.
  • Experience with popular front-end development tools, CI/CD tools, and performance testing frameworks.
  • Strong debugging skills and experience with debugging tools

Highly Preferred:

  • Understanding of React test frameworks such as Jest, Enzyme, and Jasmine.
  • Previous experience in back-end development with Java.
  • Experience working within Agile methodologies.
  • Knowledge of containerization with Docker.
  • Previous experience working in the fin-tech or other highly regulated industries.
  • Basic knowledge of Angular is a plus.

Additional Information:

  • This is a hybrid work opportunity, requiring attendance at the customer's office in Warsaw twice a week for team relationship-building purposes.
  • Due to the nature of our work in the financial market, candidates will be subject to detailed background screening including education, employment history, and criminal record.

Additional Information

We offer

  • Competitive salary package
  • Flexible working hours
  • Opportunity to work from home
  • Training and mentoring programs
  • Ability to advance your technology skills
  • Variety of projects with the cutting edge technologies at the core
  • Private medical care and life insurance
  • Permanent employment

Diversity and Inclusion Statement

We aim to recruit, develop and retain the most talented people we can find, from a range of backgrounds and cultures. Inclusivity and equality are cornerstones of our Mobica community and a big part of what makes us so brilliant to work with. Here, dedication and performance are valued and rewarded regardless of nationality, gender, age, religious beliefs or other personal characteristics. Here, diversity is celebrated and everyone belongs.

“The benefits of having a diverse workforce from different backgrounds, recruited and developed only on the basis of ability, is a core personal belief for me - so I join with other members of Mobica’s leadership in promoting a commitment to recognise equal opportunities and rights for our talented individuals. Every Mobican can expect to be treated with dignity and respect regardless of personal characteristics or beliefs.”

Samuel Kingston