Senior Software Developer - Python & PHP (GCP)

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

Job summary

Quantiphi is hiring a Senior Software Developer to own backend architecture across cloud-based infra and APIs in a headless setup. You will design, implement, and optimise services in Python and PHP, collaborate with frontend teams, and drive security, CI/CD, and scalable deployments.

You will lead database design, implement OAuth/OpenID/SAML integrations, and guide technical decisions while mentoring engineers. This role is based in Mumbai/Bangalore and requires 5–7 years of relevant experience.

Qualifications

• Senior backend developer with 5+ years of experience
• Strong in Python and PHP
• Hands-on cloud experience (GCP/AWS/Azure)
• Docker and CI/CD expertise
• Infrastructure-as-Code experience (Terraform/CloudFormation)
• Security best practices for cloud environments
• REST and GraphQL API design
• SSO/OAuth/OpenID/SAML integrations
• Contentful headless CMS experience
• Experience with headless architectures and frontend collaboration

Responsibilities

• Own backend and infrastructure architecture, documenting key decisions
• Define engineering standards for backend, infra, security and deployment
• Advise on technical approach, risk, effort and cost for projects
• Evaluate tools and third-party services and bring in specialists
• Collaborate with frontend for headless setup and Contentful integration
• Lead database design and query optimisation
• Design, deploy and maintain GCP-based cloud infra and CI/CD pipelines
• Implement monitoring, logging, alerting and incident response
• Own security, IAM, backups and disaster recovery
• Maintain runbooks and clear documentation

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!