Junior Full-Stack Developer (JavaScript + Go)

TJHelpers Ukraine is seeking a Junior Full-Stack Developer to join their product teams and contribute to building scalable, high-performance web applications across fintech, AI, telecom, healthcare, and other high-load domains. The role offers mentorship, real project experience, and structured growth within a supportive engineering environment.

• Design, develop, and maintain scalable backend services using Go (Golang)
• Build modern, responsive frontend applications using JavaScript
• Develop and maintain REST / GraphQL APIs and integrate frontend with backend services
• Work with relational and non-relational databases, ensuring data consistency and performance
• Implement authentication, authorization, and secure data flows
• Collaborate closely with DevOps, QA, product managers, and designers to deliver high-quality features
• Participate in code reviews and contribute to engineering standards and best practices
• Optimize applications for performance, scalability, reliability, and cost efficiency
• Investigate and resolve production issues across both frontend and backend layers
• Contribute to CI/CD pipelines, monitoring, and observability improvements

• Strong knowledge of Go (Golang) and experience building backend services
• Solid experience with JavaScript
• Experience designing and consuming REST APIs (GraphQL is a plus)
• Understanding of software architecture principles: microservices, clean architecture, separation of concerns
• Experience working with relational databases (PostgreSQL / MySQL) and ORMs or query builders
• Familiarity with Docker, containerized environments, and CI/CD pipelines
• Experience with Git, code reviews, testing (unit/integration), and debugging
• Ability to work independently in a fast-paced, product-driven environment

Nice to Have: React, AWS/GCP/Azure, Kafka, Redis, Elasticsearch, Kubernetes, Helm, Terraform, frontend performance optimization, monitoring tools (Prometheus, Grafana, ELK), TypeScript, Next.js, ML/AI integrations

We Offer:

• Real-world projects in fintech, AI, telecom, healthcare, and automation industries
• Mentorship from senior engineers, tech leads, and architects
• Personal development plan with clear growth path toward Senior Full-Stack Engineer, Backend Architect, or Tech Lead roles
• Access to internal workshops, engineering best practices, and structured feedback
• Collaborative engineering culture focused on transparency and continuous improvement
• Long-term projects, flexible schedule, and remote-friendly work environment