Lead Full Stack Developer

Senior

Balkans

Hybrid

Wiser Technology designs, builds, and scales complex software systems that power real-world impact. With 500+ engineers and over 25 years of experience in mission-critical environments, we help global organizations turn ambitious ideas into working solutions. Across Europe, MENA, and North America, we combine deep engineering expertise with AI and data to support leading companies in aerospace & defense, automotive, telecom & media, IT, and financial services.

We are looking to hire a Lead Full Stack Developer to spearhead the transformation of a legacy product for our client. You will lead a dedicated team in the strategic effort to rewrite and extend a legacy system, transitioning it into a modern React-based architecture.

WHAT YOU WILL DO:

Lead the architectural design and execution of rewriting legacy components into modern React.
Directly manage and mentor a full-stack engineering team, ensuring high standards of code quality and delivery.
Participate in knowledge transfer sessions and quickly absorb complex system details.
Collaborate with developеrs, QA, designers, and stakeholders to define features and architecture.
Integrate APIs and manage database interactions efficiently.
Implement UI development principles to ensure that the product client-side serves at scale.
Act as the primary technical point of contact for management, providing regular progress updates on the legacy migration.
Optimize application performance, responsiveness, and security.
Write unit and integration tests to ensure code quality and stability.

WHAT YOU WILL NEED:

5+ years of development experience
Proficient with JavaScript framework – React
Knowledge of Typescript
Solid knowledge with PHP (Laravel, Symfony, or similar frameworks).
Experience with relational databases (MySQL, PostgreSQL).
Strong knowledge of object-oriented programming and design patterns.
Familiarity with modern web development practices (REST, GraphQL, microservices).
Proven ability to work independently with minimal guidance and manage deliverables proactively.
Proficiency in debugging and test automation.
Strong communication skills in English.
Very good leadership and soft skills, with the ability to navigate high-stakes stakeholder environments.

WHAT’S IN IT FOR YOU?

Culture & Development:

Friendly Environment: We take pride in our culture and love spending time together.
Team Spirit: Be part of a supportive team that uplifts each other.
Mentorship and coaching: Our colleagues are experts in their field, and you can expect to have a solid team to rely on.
Personalized Development Program: We realize that one size doesn’t fit all, so you'll receive an individual development plan tailored to your career aspirations.

Social Benefits:

Work Flexibility: Embrace flexible working hours and choose from remote, hybrid, or onsite work models. Multiple Office Locations: In Sofia, Plovdiv and Nis, you can choose where you would like to work.
A Suite of Perks: Enjoy food vouchers, additional health insurance, sports cards, and more.
Community and Connections: Engage in exciting social events and team initiatives.

At Wiser, every role is instrumental. You will have the power to make a difference!

Ready to advance your career with a tech leader passionately driven by innovation?

Join Wiser - Become Wiser!