Responsive - Software Architect - SaaS

Responsive; Bengaluru; On-site; INR 4,200,000 - 6,800,000; Full time

Job summary

Responsive is seeking a product-minded Software Architect to lead the design of scalable, secure multi-tenant B2B SaaS platforms. The role focuses on cloud-native architectures, microservices, and APIs, with emphasis on performance, reliability, and tenant isolation.

You will guide technology decisions, mentor engineers, and drive best practices while evaluating emerging AI technologies such as LLMs, RAG, and AI orchestration to enhance product capabilities.

Qualifications

• 14+ years of software engineering experience with at least 5 years in architecture or senior technical leadership.
• Strong experience designing and scaling multi-tenant B2B SaaS or enterprise applications.
• Deep understanding of multi-tenant SaaS architecture, including tenant isolation, data segregation, authorization, and configuration.
• Strong experience with distributed systems, microservices, APIs, and cloud-native architectures.
• Strong expertise in Java, Spring Boot, and backend system design.
• Experience with React and modern frontend technologies, with a good understanding of frontend architecture and integration with backend services.
• Experience with MongoDB, SQL/NoSQL databases, caching, messaging, and event-driven architectures.
• Strong knowledge of scalability, performance optimization, high availability, fault tolerance, and disaster recovery.
• Strong understanding of application security, cloud security, authentication, authorization, and data protection.
• Experience with AWS, Azure, or GCP, Kubernetes, Docker, and CI/CD.
• Experience with observability, monitoring, logging, and distributed tracing.
• Understanding of LLMs, RAG, Agentic AI, AI agents, semantic search, vector search, and AI orchestration frameworks.
• Strong problem-solving, communication, mentoring, and technical leadership skills.

Responsibilities

• Design and evolve scalable, secure, and reliable multi-tenant SaaS platforms.
• Architect systems to support growing customers, users, workloads, and data volumes while maintaining strong performance.
• Define architecture for tenant isolation, access control, data protection, high availability, and fault tolerance.
• Lead architecture reviews, drive key technical decisions, mentor engineers, and establish engineering best practices.
• Design cloud-native solutions across microservices, APIs, databases, caching, messaging, and containerized platforms.
• Evaluate and guide the adoption of LLMs, RAG, Agentic AI, AI orchestration, semantic search, and other emerging technologies.
• Work closely with engineering, product, security, and infrastructure teams to align technology decisions with business goals.

Skills

Multi-tenant SaaS

Java

Spring Boot

Backend design

React

Frontend integration

MongoDB

SQL/NoSQL

Caching

Messaging

Event-driven

Cloud platforms

AWS

Azure

GCP

Kubernetes

Docker

CI/CD

Observability

Distributed tracing

LLMs/RAG/Agentic AI

AI orchestration

Semantic search

Vector search

Leadership

Education

Bachelor's or Master's in CS/IT

Tools

Kubernetes

Docker

CI/CD

AWS

Azure

GCP

MongoDB

Job description

About The Role

Responsive is looking for a product-minded Software Architect with deep technical expertise and a strong track record of designing and scaling multi-tenant B2B SaaS applications.

About The Role

Responsive is looking for a product-minded Software Architect with deep technical expertise and a strong track record of designing and scaling multi-tenant B2B SaaS applications.

We are looking for someone who can drive architecture across scalability, security, performance, reliability, and cloud-native systems, while also evaluating and adopting emerging technologies such as Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Agentic AI, and modern search technologies.

What You'll Be Doing

• SaaS Architecture: Design and evolve scalable, secure, and reliable multi-tenant SaaS platforms.
• Scalability & Performance: Architect systems to support growing customers, users, workloads, and data volumes while maintaining strong performance.
• Security & Reliability: Define architecture for tenant isolation, access control, data protection, high availability, and fault tolerance.
• Technical Leadership: Lead architecture reviews, drive key technical decisions, mentor engineers, and establish engineering best practices.
• Cloud & Platform Engineering: Design cloud-native solutions across microservices, APIs, databases, caching, messaging, and containerized platforms.
• Emerging Technologies: Evaluate and guide the adoption of LLMs, RAG, Agentic AI, AI orchestration, semantic search, and other emerging technologies.
• Collaboration: Work closely with engineering, product, security, and infrastructure teams to align technology decisions with business goals.

Education

• Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.

What We're Looking For :

Experience

• 14+ years of software engineering experience, with at least 5 years in architecture or senior technical leadership roles.
• Strong experience designing and scaling multi-tenant B2B SaaS or enterprise applications.

Skills, Qualifications & Ability

• Deep understanding of multi-tenant SaaS architecture, including tenant isolation, data segregation, authorization, and configuration.
• Strong experience with distributed systems, microservices, APIs, and cloud-native architectures.
• Strong expertise in Java, Spring Boot, and backend system design.
• Experience with React and modern frontend technologies, with a good understanding of frontend architecture and integration with backend services.
• Experience with MongoDB, SQL/NoSQL databases, caching, messaging, and event-driven architectures.
• Strong knowledge of scalability, performance optimization, high availability, fault tolerance, and disaster recovery.
• Strong understanding of application security, cloud security, authentication, authorization, and data protection.
• Experience with AWS, Azure, or GCP, Kubernetes, Docker, and CI/CD.
• Experience with observability, monitoring, logging, and distributed tracing.
• Understanding of LLMs, RAG, Agentic AI, AI agents, semantic search, vector search, and AI orchestration frameworks.
• Strong problem-solving, communication, mentoring, and technical leadership skills.

What Can Help You Stand Out

• Experience scaling multi-tenant SaaS platforms across large customers, users, and data volumes.
• Experience leading major platform modernization, scalability, security, or performance initiatives.
• Experience building or architecting AI-powered applications using LLMs, RAG, or Agentic AI.
• Experience designing globally distributed, highly available cloud platforms.

(ref:hirist.tech)