Middle Strong/Senior Full Stack Engineer

Geniusee; Warszawa; Remote; PLN 240,000 - 320,000; Full time

Job summary

A technology firm is seeking a Middle Strong/Senior Full Stack Engineer to architect, design, and develop high-performance applications. This role involves leading project architecture, mentoring junior developers, and ensuring secure development practices. Candidates should have over 5 years of experience with full-stack applications, strong knowledge of TypeScript, Node.js, and experience with AWS. Flexible working hours and a remote option are available.

Benefits

Competitive salary

VIP medical insurance

Unlimited work from home

Flexible working hours

Paid vacation and sick leaves

Online courses and certifications

Qualifications

• 5+ years of relevant experience in the IT industry.
• Proven track record of developing and deploying full-stack applications.
• Strong understanding of software architecture and design patterns.
• English: Intermediate Strong or higher.

Responsibilities

• Architect and develop high-performance, scalable applications.
• Lead project architecture for full-stack systems.
• Mentor junior developers.
• Drive the development lifecycle from conception to deployment.
• Coordinate efforts across cross-functional teams.
• Implement software engineering processes to improve efficiency.

Skills

TypeScript

Node.js

NestJS

React

Next.js

AWS

PostgreSQL

APIs

GraphQL (Apollo)

Microservices

Docker

Kubernetes

OWASP principles

Git

Job description

Middle Strong/Senior Full Stack Engineer

Kyiv , remote

Our mission at Geniusee is to help businesses thrive through tech partnership and strengthen the engineering community by sharing knowledge and creating opportunities 🌿Our values are Continuous Growth, Team Synergy, Taking Responsibility, Conscious Openness and Result Driven. We offer a safe, inclusive and productive environment for all team members, and we’re always open to feedback💜 If you want to work from home or work in the city center of Kyiv, great — apply right now.

• 5+ years of relevant experience in the IT industry, with a proven track record of developing and deploying full-stack applications.
• Strong, expert-level knowledge of TypeScript.
• Proficiency in backend development with Node.js and the NestJS framework.
• Proficiency in frontend development with React and Next.js.
• Experience with AI / AI SDK integration.
• Extensive experience with cloud services, specifically AWS, including Serverless architecture, Aurora RDS, and Cognito.
• Strong knowledge of database design and management with PostgreSQL.
• Experience designing and consuming APIs, including GraphQL (Apollo).
• In-depth understanding of software architecture, microservices, and design patterns across the full stack.
• Proficient in containerization and orchestration tools like Docker and Kubernetes.
• Deep understanding of security best practices, including OWASP principles, data encryption, and secure API design.
• Familiarity with modern development tools like Webpack,Vite, Biome, and version control systems like Git with branching workflows.
• Proficiency in testing methodologies (unit, integration, E2E) across the full stack.
• English: Intermediate Strong or higher, with excellent verbal and written communication skills.

Would be a plus

• AGitHub profile demonstrating yourpersonal projects oropen-source contributions — a great way to showcase your skills.

What you will do

• Architect, design, and develop high-performance, scalable, and maintainable end-to-end applications using Node.js on the backend and React on the frontend.
• Lead the development of project architecture for full-stack systems, establishing best practices, coding standards, and design patterns for both client-side and server-side development.
• Mentor and guide junior and mid-level developers, fostering their professional growth and ensuring high-quality code contributions from the entire team.
• Drive the entire development lifecycle from conception to deployment, including implementing new features, evolving existing ones, and ensuring robust error handling and security.
• Coordinate efforts across cross-functional teams, ensuring technical solutions are aligned with project goals, timelines, and business requirements.
• Evaluate and implement advanced software engineering processes, tools, and methodologies to improve development efficiency and product quality.
• Take ownership of the application’s security and data protection measures, from the database to the user interface.
• Lead technical planning and estimation sessions and participate in the recruitment process by conducting technical interviews for full-stack engineers.
• Stay current with the latest industry trends, technologies, and best practices in both frontend and backend development, and champion their adoption where appropriate.

What you will get

• Competitive salary and good compensation package;
• Exciting, challenging and stable startup projects with a modern stack;
• Ability to practice English and communication skills through permanent interaction with clients from all over the world;
• Professional study compensation, online courses and certifications;
• Career development opportunity, semi-annual and annual salary review process;
• Necessary equipment to perform work tasks;
• VIP medical insurance or sports coverage;
• Informal and friendly atmosphere;
• The ability to focus on your work: a lack of bureaucracy and micromanagement;
• Flexible working hours (start your day between 8:00 and 11:30);
• Paid vacation (18 working days) and sick leaves;
• Cozy offices in 2 cities ( Kyiv & Lviv ) with electricity and Wi‑Fi (Generator & Starlink);
• Compensation for coworking (except for employees from Kyiv and Lviv);
• Unlimited work from home from anywhere in the world (remote);
• Geniusee has its own charity fund.

Thinking about joining our team?

Explore our background, values and benefits. Our company brings together some very interesting individuals and we are happy to help each other to become better and grow together.