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Senior Software Engineer (SDE-III) Full Stack

Senior Software Engineer (SDE-III) Full Stack

synthweb
6-8 Years
Not Disclosed
Early Applicant
  • Posted 2 months ago
  • Be among the first 10 applicants

Job Description

Experience: 6+ Years (SaaS / Enterprise-grade systems preferred)

Location: Bangalore or Guwahati (On-site Only)

Type: Full-Time | Immediate Joiners Preferred

We are looking for a Senior Full Stack Engineer (SDE-III) who can own architecture, scalability, and delivery of a high-performance SaaS platform. You will play a strategic role in shaping technical direction, mentoring developers, and delivering complex business features that directly impact product success.

This role requires hands-on coding expertise, combined with architectural thinking and leadership abilities to build systems that are modular, secure, and future-ready.

Key Responsibilities
  • Architect & Design
  • Define and implement scalable, modular system architectures (microservices, APIs, and modular frontends).
  • Drive design decisions around system performance, caching strategies, database optimizations, and distributed workflows.
  • Establish coding standards, CI/CD practices, and ensure architectural consistency across teams.
  • End-to-End Ownership
  • Lead delivery from Figma designs production deployment with accountability for timelines, quality, and scalability.
  • Translate business requirements into robust technical solutions, identifying risks early and planning mitigation strategies.
  • Technical Leadership
  • Mentor and guide SDE-I/II engineers through code reviews, pair programming, and architectural walkthroughs.
  • Champion clean code, testing, documentation, and refactoring efforts.
  • Introduce best practices in observability, monitoring, logging, and debugging in production environments.
  • Collaboration & Influence
  • Partner with product managers and designers on sprint planning, estimations, and roadmap alignment.
  • Influence technical direction by evaluating new frameworks, tools, and technologies to maintain a competitive edge.
  • Lead modernization of legacy modules into future-proof systems.
  • Scalability & Reliability
  • Design systems with horizontal scalability, fault tolerance, and data integrity in mind.
  • Implement RBAC, security best practices, and compliance-friendly designs (GDPR-ready, SOC2-prep if needed).
  • Optimize backend services with async processing, caching (Redis), and real-time features (WebSockets/SignalR).
Tech Stack You'll Work On

Frontend:

  • React.js (Hooks, Context API, Redux/Zustand)
  • TypeScript (preferred)
  • Tailwind CSS / SCSS, with modern UI libraries (MUI, Ant Design, ShadCN)
  • Advanced state management & performance optimization
  • REST API integration, JWT-based auth flows

Backend:

  • Node.js + Express.js (Nest.js experience a plus)
  • MongoDB (Mongoose) and PostgreSQL (Prisma/Sequelize ORM)
  • Authentication: JWT, OAuth2, RBAC
  • File handling, search, filtering, pagination, modular controllers
  • Event-driven architectures (Kafka, RabbitMQ bonus)

DevOps & Tooling:

  • Git & GitHub/GitLab | Code review & branching strategies
  • Postman, Swagger/OpenAPI | API design & documentation
  • Docker (containerization, multi-env setup)
  • CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins)
  • Deployment: AWS / DigitalOcean / Render / Vercel
  • Monitoring: New Relic, Datadog, Prometheus/Grafana (bonus)

Bonus / Advanced Skills:

  • Next.js for SSR/SSG
  • Redis for caching and queueing
  • WebSockets / Socket.io for real-time updates
  • 3rd-party API integrations (Stripe, SendGrid, etc.)
  • Testing frameworks (Jest, Mocha, Supertest)
  • AI & LLM integration (OpenAI, LangChain, Pinecone, VectorDBs)
You're a Great Fit If You…
  • Have led small engineering teams or driven delivery of mission-critical systems.
  • Have deep understanding of distributed systems, design patterns, and scaling SaaS platforms.
  • Can balance trade-offs between performance, cost, and maintainability.
  • Thrive in fast-paced, high-ownership environments where you influence product and tech direction.
  • Aspire to grow into a Tech Lead or Solution Architect role within 1–2 years.
Why Join Us
  • Build a high-impact SaaS platform from the ground up with modern stacks.
  • Work directly with founders and senior leadership on strategic product decisions.
  • Opportunity to lead, mentor, and shape engineering culture.
  • Clear growth path to Tech Lead / Principal Engineer / Architect.

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