Technical Leader (Fullstack Backend focused)

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Technical Leader (Fullstack Backend focused) based in Poland.

This is a high-impact technical leadership opportunity within a fast-growing fintech environment.

You will shape backend architecture, technical standards, and the engineering roadmap while remaining hands-on.

The role combines team leadership with the design and delivery of scalable, reliable APIs and distributed systems.

You’ll work closely with Product, Frontend, DevOps, and other stakeholders to turn business needs into robust solutions.

You’ll also help introduce AI-powered development practices that improve engineering velocity and product quality.

The environment rewards ownership, adaptability, curiosity, and pragmatic technical decision-making.

It’s an opportunity to influence both the technology and the engineering culture while solving complex problems at scale.

Accountabilities

• Lead, mentor, and support a team of engineers while establishing strong engineering practices, coding standards, and a culture of continuous improvement.
• Partner with Product, Frontend, DevOps, and other teams to define and deliver scalable technical solutions aligned with business objectives.
• Architect, develop, and maintain high-performing backend services and APIs using TypeScript, Node.js, and modern backend frameworks.
• Design systems for high availability, strong performance, security, scalability, and zero-downtime deployment.
• Own backend technical direction and roadmap decisions, balancing immediate delivery requirements with long-term maintainability and scalability.
• Strengthen system reliability through effective testing, monitoring, logging, observability, incident management, and performance optimization.
• Leverage AI tools, automation, and emerging technologies to improve developer productivity, engineering workflows, and end-user experiences.
• Evaluate and introduce new technologies where they can meaningfully improve the platform, development process, or product.
• Translate business and product requirements into robust backend architectures and serve as a bridge between engineering and product stakeholders.

Requirements

• 6+ years of backend development experience, including at least 4 years in a technical leadership or lead engineering role.
• Strong proficiency with TypeScript, Node.js, and backend frameworks such as NestJS or Express.js.
• Proven experience designing, building, and maintaining scalable APIs, backend services, and distributed systems.
• Strong knowledge of relational and non-relational databases, data modeling, and query optimization.
• Experience with cloud infrastructure, preferably AWS, along with containerization, CI/CD, and infrastructure-as-code practices.
• Solid understanding of event-driven architectures, messaging systems, and asynchronous processing; experience with technologies such as Apache Kafka is an advantage.
• Demonstrated ability to incorporate AI tools and workflows into software development to improve speed, efficiency, and quality.
• Experience leading or mentoring engineers, conducting code reviews, establishing technical standards, and setting engineering direction.
• Good understanding of frontend concepts and the ability to collaborate effectively with frontend engineers.
• Strong knowledge of software security, testing strategies, observability, reliability, and performance optimization.
• Excellent communication and collaboration skills, with the ability to lead technical discussions across functions.
• Proactive, adaptable, and comfortable operating in a fast-paced environment where priorities can evolve quickly.
• Strong ownership mentality, sound judgment, curiosity, and a commitment to continuous learning and improvement.

Benefits

• Fully remote work environment.
• Full-time opportunity within a fast-growing fintech organization.
• High-impact role with significant influence over backend architecture, technical strategy, and engineering practices.
• Opportunity to work on financial technology and Forex-related solutions with real-world impact.
• Exposure to modern cloud technologies, AI-assisted development, automation, and emerging engineering practices.
• Collaborative environment with close interaction across Engineering, Product, Frontend, and DevOps.
• Opportunities to mentor engineers and shape a high-performing technical culture.
• Professional growth through ownership of complex technical challenges and strategic initiatives.