Remote Remote (Global)

OnHires is hiring a Senior Fullstack (Node.js + React.js)

About the Role

Role Overview

This is a senior-level engineering position focused on full ownership of feature development across both frontend and backend systems. You'll work directly in a modern SaaS stack, designing and delivering high-impact functionality while contributing to architectural direction and system reliability. This role does not include people management—it’s designed for engineers who thrive in deep technical ownership and product-focused delivery.

What You’ll Do

  • Develop and ship end-to-end features using Node.js, NestJS, React.js, Next.js, and TypeScript
  • Design scalable backend services and secure, well-documented REST APIs
  • Build responsive, efficient frontend components with server-side rendering, routing, and state management
  • Write clean, testable, and well-documented code with a focus on long-term maintainability
  • Collaborate in technical discussions shaping the product’s architecture and evolution
  • Enhance observability using tools like Sentry, Datadog, and Groundcover for logging, monitoring, and alerting
  • Diagnose and resolve performance bottlenecks across services and UI layers
  • Lead incident response and conduct root-cause analysis to improve system resilience
  • Optimize CI/CD pipelines using GitHub Actions for reliable, repeatable deployments
  • Work closely with DevOps to maintain consistent environments from development to production
  • Help define and follow Git branching strategies, whether Git Flow or trunk-based development
  • Ensure deployment workflows are smooth, predictable, and production-ready

What We’re Looking For

  • 5+ years of professional experience in full-stack software development
  • Proven production-level work with Node.js and NestJS
  • Strong track record building applications with React.js and Next.js
  • Extensive use of TypeScript across frontend and backend
  • Firm grasp of PostgreSQL, including data modeling, indexing, and query optimization
  • Hands-on experience with AWS services such as Lambda, S3, CloudWatch, SNS, and SQS
  • Experience designing secure REST APIs with JWT and industry-standard authentication practices
  • Understanding of distributed systems and scalable backend architectures
  • Direct experience with CI/CD pipelines and automation via GitHub Actions
  • Familiarity with Docker and containerized environments
  • Experience managing version control workflows and Git branching models

Nice-to-Have Skills

  • Kubernetes (K8s) for container orchestration
  • Experience with ArgoCD or GitOps deployment patterns
  • Background in event-driven systems using Kafka, RabbitMQ, or similar
  • Infrastructure as Code using Terraform
  • Working knowledge of observability platforms like Sentry, Datadog, or Groundcover
  • Experience with design systems or Storybook
  • Contributions to internal libraries or shared packages
  • Test automation using Playwright or comparable frameworks

Technology Stack

Node.js, NestJS, React.js, Next.js, TypeScript, PostgreSQL, AWS (Lambda, S3, CloudWatch, SNS/SQS), REST APIs, JWT, GitHub Actions, Docker, Git, Sentry, Datadog, Groundcover, Kubernetes, ArgoCD, Kafka, RabbitMQ, Terraform, Storybook, Playwright

Benefits

  • Competitive compensation package
  • 22 paid vacation days plus national holidays
  • Annual budget for learning and development—including courses, certifications, and conferences
  • Opportunity to shape a growing multi-product SaaS platform
  • Modern tech stack with minimal legacy constraints
  • Autonomous engineering culture centered on product impact and technical excellence

Work Environment

This is a fully remote, full-time position available globally under a B2B contract. The team operates in a senior-led, independent engineering environment—no external clients, no outsourcing, and no investor-driven timelines. You’ll have the freedom to focus on building high-quality systems that scale.

Required Skills
Node.jsNestJSReact.jsNext.jsTypeScriptPostgreSQLAWS (Lambda, S3, CloudWatch, SNS/SQS)REST APIsJWTGitHub Actions Node.jsNestJSReact.jsNext.jsTypeScriptPostgreSQLAWS LambdaAWS S3AWS CloudWatchAWS SNSFullstack DevelopmentRESTful APIsMicroservicesTypeScriptCloud Architecture
Freelancing without stability?

Get steady projects, keep your freedom

Iglu connects you with international clients and handles contracts, payments, and admin. You get consistent work and flexibility — no more chasing invoices or worrying about gaps.

Consistent client projects
Contract & payment management
Flexible work schedule
Revenue-sharing compensation
See open positions
Work from anywhere
About company
OnHires
A fast-growing global leader in next-generation payment solutions, powering some of the most dynamic sectors of the digital economy — including iGaming, Forex, Crypto, and eCommerce. The company operates a proprietary payment infrastructure supporting 60+ global and local payment methods, enabling seamless cross-border operations with AI-driven routing, PCI DSS-certified security, and real-time fraud monitoring.
All jobs at OnHires Visit website
Job Details
Category fullstack
Posted a month ago