Senior Full Stack Developer - Capon Bridge
2 days ago

Job description
About the Company
Our client is a rapidly growing US-based technology firm with global operations. With a strong commitment to innovation and quality engineering, the company is building a new engineering hub in Warsaw. This is your opportunity to join a high-performing team and play a pivotal role in developing next-generation digital solutions for the private capital markets.
Location & Setup
Start remotely and transition to a hybrid model based in Warsaw (3 days/week in the office in the coming months).
The Role: Senior Full Stack Developer (React & )
We're looking for an expert-level Senior Full Stack Developer with at least 7 years of professional experience in designing, architecting, and delivering high-performance web applications. You will take ownership of complex technical challenges across both the front-end and back-end, drive architectural decisions, and provide technical leadership and mentorship within the software development lifecycle.
Key Responsibilities
Technical Leadership: Architect and develop scalable, responsive UIs with , Redux, and modern JavaScript (ES6+).
System Design: Design, build, and scale advanced server-side applications, microservices architecture, and RESTful/GraphQL APIs with and Express.
Data Architecture: Lead database design, optimization, and integration strategies (PostgreSQL, MySQL, or MongoDB).
Quality Assurance: Define testing strategies, write robust unit/integration tests, and establish efficient debugging protocols for the team.
DevOps & Deployment: Oversee and optimize CI/CD pipelines, containerization using Docker, and cloud deployments.
Agile Mentorship: Lead agile collaboration with product managers, designers, and engineers, while mentoring mid-level and junior developers.
Performance: Proactively monitor system performance, identify bottlenecks, and maintain high-availability production-grade applications.
Standards: Establish and maintain comprehensive technical documentation and coding standards.
What We're Looking For
Front-End:
Expert-level experience with , Hooks, Redux, and complex component-based architecture.
Deep mastery of HTML5, CSS3, and ES6+.
Advanced configuration and optimization experience with build tools like Webpack, Babel, or Vite.
Back-End:
Senior-level proficiency in & for enterprise applications.
Extensive API design and architecture experience (GraphQL highly preferred, alongside REST).
Deep understanding and implementation experience with advanced security and authentication protocols: OAuth, JWT, sessions, and RBAC.
Databases & DevOps:
Proven experience in scaling and optimizing relational and non-relational databases (PostgreSQL, MySQL, or MongoDB).
Solid hands-on experience with Docker; Kubernetes experience is highly advantageous.
Demonstrated experience designing and deploying applications on cloud platforms (AWS, Azure, or GCP).
Advanced proficiency with Git workflows and driving Agile/Scrum methodologies.
Qualifications
Bachelor's or Master's in Computer Science or a related field.
7+ years of hands-on experience in full stack development.
2+ years of experience in a senior or technical lead capacity.
Proven track record of architecting, deploying, and maintaining high-traffic production applications.
Soft Skills
Strategic, analytical thinker and highly effective problem-solver.
Strong technical leadership, team collaboration, and cross-functional communication skills.
Self-motivated with excellent time management and the ability to drive projects autonomously.
Passion for continuous learning, adopting new technologies, and sharing knowledge with the team.
What's Offered
Competitive salary up to $6,200 USD/month.
Hybrid remote role with 3 days form office in the heart of Warsaw
Generous Paid Time Off (PTO).
Comprehensive full benefits package.
The unique chance to shape the technical foundation of a new engineering hub and lead high-impact projects.
A supportive, innovation-driven work environment that values technical excellence.
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