Senior Software Developer - Python & PHP (GCP)

Quantiphi; Mumbai; On-site; INR 2,000,000 - 2,800,000; Full time

Job summary

Quantiphi is seeking a Senior Software Developer to lead backend architecture and DevOps across Mumbai/Bangalore. You will own API design (REST/GraphQL), integrate with Contentful, and manage cloud infrastructure on GCP.

The role requires strong Python/PHP coding, Docker, CI/CD, security practices, and SSO integrations (OAuth2/OpenID/SAML). You will collaborate with front-end teams on headless approaches and mentor engineers while driving scalable, secure backend systems and cost-aware cloud

Qualifications

• Experience as a backend developer with Python and PHP
• Hands-on with major cloud providers (GCP/AWS/Azure), preferably GCP
• Docker/container deployment experience
• Strong CI/CD and modern DevOps practices
• Infra-as-Code tools such as Terraform or CloudFormation
• Security best practices for cloud environments
• Experience with relational and/or NoSQL databases
• Design and integrate REST and GraphQL APIs
• SSO/authentication using OAuth2/OpenID Connect/SAML and Microsoft Entra ID
• Front-end collaboration on headless solutions with Contentful

Responsibilities

• Own backend and infrastructure architecture and document decisions
• Define standards for backend code, infrastructure, security and deployment
• Advise leadership on technical approach, risk, effort and cost
• Evaluate tools and third-party partners and bring in specialists
• Share knowledge with the engineering team and support front-end developers on backend topics
• Design, build and maintain backend services and APIs in Python and PHP
• Write clean, tested code and establish review practices
• Optimize performance, reliability and security
• Design/integrate REST and GraphQL APIs and headless CMS integrations
• Lead authentication/SSO integrations including OAuth2/OpenID/SAML
• Lead database design and query optimization
• Design, deploy and maintain GCP-based cloud infrastructure
• Build/containerize deployment using Docker
• Support front-end deployments on SaaS platforms like Vercel
• Build CI/CD pipelines and monitor/log/alert practices
• Own IaC, cloud cost/performance optimization
• Maintain disaster recovery and security controls
• Maintain runbooks and documentation

Skills

Senior backend development

Cloud fundamentals

CI/CD

Security best practices

REST/GraphQL APIs

OAuth/OpenID/SAML auth

Headless architecture

Communication

Tools

Python

PHP

Docker

Terraform

CloudFormation

Contentful CMS

GCP

Vercel

Kubernetes

Job description

While technology is the heart of our business, a global and diverse culture is the heart of our success. We love our people and we take pride in catering them to a culture built on transparency, diversity, integrity, learning and growth.

If working in an environment that encourages you to innovate and excel, not just in professional but personal life, interests you- you would enjoy your career with Quantiphi!

Role : Senior Software Developer Experience : 5 - 7 Years Location : Mumbai/Bangalore

KEY RESPONSIBILITIES

Architecture & Technical Leadership

• Own the backend and infrastructure architecture, making and documenting key technical decisions
• Define and maintain engineering standards for backend code, infrastructure, security, and deployment
• Advise leadership and delivery teams on technical approach, risk, effort, and cost for new projects and pitches
• Evaluate and select tools, services, and third-party partners, bringing in specialist support where appropriate
• Share knowledge with the wider engineering team, including supporting front-end developers on backend and infrastructure topics

Backend Development

• Design, build, and maintain backend services and APIs using Python and PHP
• Write clean, well-tested, maintainable code, and establish review practices for backend work
• Optimise application performance, reliability, and security
• Design and integrate REST and GraphQL APIs, both consuming third-party services and exposing internal endpoints
• Work closely with front-end developers to support headless architecture, integrating with headless CMS platforms such as Contentful
• Design and own authentication and SSO integrations using OAuth 2, OpenID Connect, and SAML, working with identity platforms such as Microsoft Entra ID
• Lead database design and query optimisation

DevOps & Infrastructure

• Design, deploy, and maintain cloud infrastructure, primarily on GCP
• Build and manage containerised environments using Docker
• Support front-end developers with deployments on SaaS hosting platforms such as Vercel
• Build and maintain CI/CD pipelines to support fast, safe releases
• Implement monitoring, logging, and alerting, and lead incident response
• Own infrastructure-as-code practices and cloud cost/performance optimisation
• Own cloud security, access management, backups, and disaster recovery
• Maintain clear documentation and runbooks so systems are well understood and resilient beyond any one person

ESSENTIAL SKILLS & EXPERIENCE

• Proven senior-level experience as a backend developer, with strong commercial experience in Python and PHP
• Strong hands-on experience with at least one major cloud provider (e.g. GCP, AWS, Azure), ideally GCP
• Practical experience with Docker and containerised application deployment
• Strong understanding of CI/CD and modern DevOps practices
• Hands-on experience with Infrastructure-as-Code tools (e.g. Terraform, CloudFormation)
• Solid knowledge of security best practices for cloud environments
• Experience with relational and/or NoSQL databases
• Strong experience designing and integrating REST and GraphQL APIs
• Strong experience implementing SSO and authentication using standards such as OAuth 2, OpenID Connect, and SAML, and integrating with identity platforms such as Microsoft Entra ID
• Experience collaborating with front-end developers on headless solutions, including CMS platforms such as Contentful
• Comfortable working across the full lifecycle - from design through deployment to monitoring
• Confident working autonomously as the sole owner of a technical area, making sound decisions and prioritising effectively
• Excellent communication skills, with the ability to explain technical decisions to non-technical stakeholders and clients

DESIRABLE SKILLS & EXPERIENCE

• Experience supporting front-end deployments on SaaS hosting platforms such as Vercel
• Familiarity with Kubernetes or other container orchestration
• Experience working in an agency or client-facing environment
• Experience contributing to technical scoping, estimation, or pitches
• Prior experience mentoring engineers or leading technical initiatives

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us !