Middle/Middle strong NodeJS Developer

Our mission at Geniusee is to help businesses thrive through tech partnership and strengthen the engineering community by sharing knowledge and creating opportunities🌿
We care about Trust, Partnership, Transparency, and Responsibility. 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 offices in Kyiv, Lviv or Warsaw with stable electricity and Wi-Fi , great — apply right now
 

Requirements:
● 4+ years of experience in software development;
● 3+ years of experience in building and maintaining backend applications in ● Node.js/TypeScript;
● Hands-on experience with NestJS (or similar), React (primary), Next.js (SSR/SSG);
● Strong understanding of REST and GraphQL APIs;
● Experience with PostgreSQL, Redis, and TypeORM;
● Familiarity with Docker, Kubernetes, and AWS (CDK, ECS, S3, CloudFront);
● Experience in microservices architecture and distributed systems;
● Solid knowledge of SOLID principles, design patterns, and clean code practices;
● Experience writing unit and integration tests (Jest or similar);
● Understanding of authentication, CORS, and secure data flows;
● Experience working with Agile teams (JIRA or similar);
● Experience working in cross-functional teams;
● A proactive, responsible mindset with a focus on solving user and business problems;
● Passion for learning new technologies or solutions to improve product development;
● English: Upper-Intermediate or higher.

Responsibilities:
● Design, develop, and maintain scalable and high-performance backend services using Node.js (TypeScript, NestJS, or Express);
● Build and maintain secure RESTful and GraphQL APIs, ensuring reliable integration with frontend applications (React or similar);
● Design and implement serverless and cloud-native architectures using AWS;
● Work with relational and NoSQL databases (PostgreSQL, MySQL, MongoDB, Redis), ensuring optimized queries, caching, and data consistency;
● Implement authentication and authorization mechanisms (JWT, OAuth 2.0, Passport.js) and apply best practices in security and data protection;
● Analyze and improve system performance, identify bottlenecks, and apply optimized and scalable solutions;
● Collaborate closely with frontend, QA, DevOps, and PM teams to ensure end-to-end delivery and seamless deployment;
● Participate in code reviews, sprint planning, and CI/CD pipeline improvements;
● Contribute to technical assessments, estimations, and discovery or pre-sales phases, preparing Proofs of Concept (PoCs) when needed;
● Provide technical guidance and mentorship to junior developers and support knowledge sharing within the team;
● Ensure high code quality, maintainability, and adherence to industry standards and best practices.

Nice to have:
● Experience in EdTech / eLearning or corporate SaaS products;
● Understanding of data-driven architectures and analytics integrations;
● Exposure to Machine Learning, data engineering, or AI-driven personalization;
● Familiarity with React/Next.js (for occasional cross-functional collaboration);
● Experience with Serverless components and event-driven architectures.

What will you get:
● Competitive salary and good compensation package;
● Exciting, challenging and stable startup projects with a modern stack;
● Corporate English course;
● 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);
● Team buildings, corporate events;
● 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);
● Corporate lunch + soft skills clubs;
● Unlimited work from home from anywhere in the world (remote);
● Geniusee has its own charity fund.