Lead Fullstack Engineer (Frontend oriented)

RESPONSIBILITIES

• Design and implement scalable and maintainable front-end architectures, ensuring high performance and reliability.
• Lead the development of responsive, user-friendly, and visually appealing complex applications and components.
• Set and maintain high standards for code quality, code reviews, and best practices within the front-end team.
• Identify and resolve performance bottlenecks, improve loading times, and optimize user experiences.
• Collaborate with product managers, UX/UI designers, engineers, and data scientists to define requirements and implement effective solutions.
• Collaborate with peers and technical leaders across multiple international teams and locations, driving cross-site initiatives and shared standards.
• Maintain comprehensive documentation for systems and processes.
• Ensure robust testing procedures and continuous integration to guarantee the reliability of our front-end applications.
• Collaborate with cross-functional teams to define and refine project requirements.

REQUIREMENTS

• At least 5 years of experience in creating web applications (as a Full-Stack, but Front-end oriented).
• Good knowledge of TypeScript, JavaScript, CSS and React.
• Good practical knowledge of Ruby/Go.
• Experience in test-driven development and ability to write automated tests.
• Experience with performance optimization, responsive design, and crossbrowser compatibility.
• Knowledge of Back-End technologies (for example: Java, Spring).
• Fluency in English (min. B2 level).
• University degree in Computer Sciences, Telecommunication and/ or similar.

NICE TO HAVE

• Knowledge of other frameworks, like Angular, Vue.
• Experience with writing E2E tests using Cypress.
• Experience with Material UI.
• Experience with Storybook.

WHAT DO WE OFFER ON THIS PROJECT?

• Cooperation based on a B2B contract.
• Hybrid work from Warsaw (3 times a week in the office).
• The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client.
• Events and integration meetings, as well as participation in various initiatives, e.g., sports.
• Access to the benefits offering (medical care, life insurance, Multisport card).

WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE?

Application: Apply and submit your CV.

After the application review, the recruiter will contact selected candidates by phone.

Screening: Have a conversation with a speedapp recruiter about your experience.

Next steps: The speedapp recruiter will explain the recruitment process for the specific position.

The speedapp recruiter will stay in touch with you throughout the entire process.

ABOUT SPEEDAPP

At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them.

👉 10 years of experience

👉 +100 clients worldwide 

👉 +300 hires per year

💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.

DO YOU HAVE ANY QUESTIONS?

Contact the recruiter responsible for this process directly.

Anna Więckowska
Junior IT Delivery Consultant
anna.wieckowska@speedapp.pl