Senior Full Stack Engineer
Architect and build high-throughput SaaS products handling millions of real-time events.
Role Overview
As a Senior Full Stack Engineer at Skyzenix Technology, you will be the architectural backbone behind mission-critical client products, scalable SaaS platforms, and high-load web applications. You'll work closely with client founders, product managers, and our AI engineers to ship resilient, modular code at lightning speed.
Key Responsibilities
- Architect and develop end-to-end full-stack web and mobile applications using Next.js, React, Node.js, and TypeScript.
- Design highly scalable relational (PostgreSQL) and non-relational database schemas optimized for low latency and high concurrency.
- Build secure, performant REST and GraphQL APIs with robust authentication (OAuth, JWT) and rate-limiting protocols.
- Lead code reviews, enforce strict engineering standards, and mentor mid-level and junior developers across sprint cycles.
- Collaborate directly with product stakeholders to convert complex business requirements into crisp technical specifications.
- Implement automated testing pipelines (Jest, Playwright) and continuous integration/continuous deployment (CI/CD) workflows.
- Diagnose, debug, and eliminate performance bottlenecks across front-end rendering and back-end queries.
Requirements & Experience
- 5+ years of production experience building modern web applications with JavaScript/TypeScript ecosystems.
- Expert-level proficiency in React, Next.js (App Router, Server Actions, SSR/SSG), and Node.js.
- Strong understanding of database design, indexing strategies, and caching layers with Redis and PostgreSQL/MongoDB.
- Proven track record of deploying applications to AWS (ECS, Lambda, RDS) or Vercel with Docker containerization.
- Deep comprehension of web security best practices (CORS, CSRF, XSS, OWASP Top 10).
- Exceptional problem-solving abilities and clear technical communication skills in asynchronous remote setups.
Nice-to-Haves / Bonus Points
- Experience integrating LLM APIs (OpenAI, Anthropic, Gemini) or vector databases.
- Familiarity with micro-frontend architectures or distributed queue systems (RabbitMQ, Kafka).
- Contributions to open-source developer tooling or libraries.
Core Tech Stack
What We Offer
Our Interview Process
Application Review
Our engineering leads review your portfolio, GitHub, and past project impact.
Discovery Chat (30 min)
A conversational call to align on technical interests, culture, and mutual expectations.
Technical & System Deep Dive
Hands-on architectural discussion or pragmatic problem-solving without leetcode tricks.
Offer & Welcome
We move fast with competitive compensation, equipment delivery, and onboarding.
Apply for Senior Full Stack Engineer
Attach your resume and details below. Our technical hiring team reviews every application within 48 hours.
Apply for Senior Full Stack Engineer
Position Summary
Department
Engineering
Employment Type
Full-time
Location
Remote / Kolkata Hybrid
Salt Lake Sector V, Kolkata / Remote
Experience
5+ Years
Compensation
Competitive + Performance Bonus
Posted
October 2026
Have questions about this role?
Our engineering recruiting team is here to answer any questions about the role or interview.
contact@skyzenix.com