Full Stack Software Development Engineer II

Posted 7 Days Ago
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Bengaluru, Bengaluru Urban, Karnataka, IND
In-Office
Mid level
Information Technology • Consulting
The Role
Build scalable full-stack web applications using React, TypeScript, Node.js or FastAPI, and PostgreSQL. Design responsive interfaces, REST APIs, microservices, database models, and automated tests. Apply clean architecture and software design principles, participate in Agile ceremonies, collaborate with cross-functional teams, and mentor junior engineers. The role also involves performance optimization, debugging, code reviews, and driving features from design through deployment.
Summary Generated by Built In
Job Title: Full Stack Software Development Engineer II (SDE II)

Team: Product Engineering
Location: Bangalore, India
Employment Type: Full-time

About the Role

As a Full Stack SDE II in Sigmoid's Product Engineering team, you will take ownership of building scalable, reliable, and user-centric web applications. You will collaborate closely with product managers, designers, and system architects to drive features from design to deployment, ensuring robust frontend performance, clean backend services, and efficient database architectures.

Key ResponsibilitiesFull Stack Development
  • Design and build responsive, high-performance web interfaces using React, TypeScript, Tailwind CSS, and Shadcn UI, backed by reliable API services using Node.js or Python (FastAPI).
Database & API Design
  • Model, query, and optimize relational data structures in PostgreSQL.
  • Design, build, and maintain clean RESTful APIs and microservices.
Code Quality & Best Practices
  • Apply SOLID principles, basic design patterns, and clean code principles to write maintainable, scalable, and self-documenting code.
Testing & Quality Assurance
  • Implement comprehensive test suites using Jest, React Testing Library, or backend testing frameworks (e.g., PyTest) to maintain high code coverage and prevent regressions.
Agile Execution
  • Actively participate in Agile ceremonies (sprints, stand-ups, retrospectives, and planning) to deliver quality code incrementally.
Collaboration & Mentorship
  • Partner with cross-functional teams and mentor junior engineers through constructive code reviews and technical guidance.
Requirements & QualificationsTechnical SkillsFrontend
  • 3–5 years of hands-on experience with React, TypeScript, Tailwind CSS, and modern UI component libraries like Shadcn UI.
State & Data Fetching
  • Experience with modern client-side state management and data-fetching libraries (TanStack Query, Zustand, or Redux Toolkit).
Backend
  • Strong expertise in server-side development using Node.js or Python (FastAPI).
ORMs & Data Layer
  • Experience with ORMs or Query Builders such as Prisma, Drizzle, TypeORM, or SQLAlchemy.
Database
  • Strong expertise in relational database modeling, query optimization, indexing, and management with PostgreSQL.
System Design & Patterns
  • Practical experience applying SOLID principles, basic software design patterns (Factory, Singleton, Observer, etc.), and clean architecture principles.
API Development
  • Solid grasp of API design standards, authentication/authorization using OIDC and OAuth 2.0, and backend-frontend integration.
Testing
  • Proficiency in unit, integration, and component testing using Jest, React Testing Library, and PyTest.
Methodologies
  • Strong operational knowledge of Agile/Scrum software development workflows.
Culture & MindsetAnalytical & Data-Driven
  • Problem-solver who relies on metrics, root-cause analysis, and objective evidence to make sound technical and design choices.
Entrepreneurial & Agile
  • Thrives in a fast-paced, high-growth environment, displaying high ownership, adaptability, and resilience.
Leader & Doer
  • Balanced builder who can lead initiatives and mentor peers while remaining deeply hands-on in code implementation and debugging.
Communication
  • Exceptional written and verbal communication skills to articulate technical concepts, align with stakeholders, and author quality documentation.
Nice to HaveDatabase & Caching
  • Experience with caching strategies using Redis, or exposure to NoSQL databases (e.g., MongoDB).
Architecture & APIs
  • Exposure to GraphQL, microservices architecture, and event-driven patterns (e.g., Kafka, RabbitMQ).
Cloud & DevOps
  • Hands-on experience with containerization (Docker, Kubernetes), CI/CD pipelines, and cloud infrastructure (AWS, GCP, or Azure).
Security & Performance
  • Understanding of web security best practices (OWASP Top 10, OAuth2, JWT) and web performance optimization techniques.

Note:

By submitting your application, you consent to being contacted by our Talent Acquisition team via phone call, email, SMS, WhatsApp, or other communication channels regarding your application and relevant career opportunities.

Skills Required

  • 3-5 years of hands-on experience with React, TypeScript, Tailwind CSS, and modern UI component libraries such as Shadcn UI
  • Experience with TanStack Query, Zustand, Redux Toolkit, or comparable client-side state management and data-fetching libraries
  • Strong server-side development expertise using Node.js or Python with FastAPI
  • Experience with Prisma, Drizzle, TypeORM, SQLAlchemy, or comparable ORMs/query builders
  • Strong PostgreSQL expertise, including relational data modeling, query optimization, indexing, and database management
  • Practical experience applying SOLID principles, software design patterns, and clean architecture principles
  • Experience designing RESTful APIs and implementing authentication and authorization with OIDC and OAuth 2.0
  • Proficiency in unit, integration, and component testing with Jest, React Testing Library, PyTest, or comparable frameworks
  • Strong operational knowledge of Agile and Scrum software development workflows
  • Excellent written and verbal communication skills
  • Experience with Redis caching or NoSQL databases such as MongoDB
  • Exposure to GraphQL, microservices architecture, and event-driven systems such as Kafka or RabbitMQ
  • Hands-on experience with Docker, Kubernetes, CI/CD pipelines, or cloud infrastructure such as AWS, GCP, or Azure
  • Understanding of OWASP Top 10, OAuth2, JWT, and web performance optimization
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The Company
HQ: San Francisco, CA
499 Employees
Year Founded: 2013

What We Do

Sigmoid is a leading data engineering and AI solutions company that helps enterprises gain a competitive advantage with effective data-driven decision-making. Our team is strongly driven by the passion to unravel data complexities. We generate actionable insights and translate them into successful business strategies. We leverage our expertise in open-source and cloud technologies to develop innovative frameworks catering to specific customer needs. Our unique approach has positively influenced the business performance of our Fortune 500 clients across CPG, retail, banking, financial services, manufacturing, and other verticals. Backed by Sequoia Capital, Sigmoid has offices in New York, San Francisco, Dallas, Lima, Amsterdam, and Bengaluru. We are recognized among the world's fastest growing and innovative tech companies, winning several awards and recognition like the Deloitte Technology Fast 500, Financial Times- The Americas’ Fastest Growing Companies, Inc. 5000, Great Place To Work- India’s Best Leaders in Times of Crisis, Data Breakthrough, Aegis Graham Bell, TiE50, NASSCOM Emerge 50, and others. Learn more: https://www.sigmoid.com/ or https://sigmoid.com/careers/ for careers.

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