[Hiring] Senior Backend/API Developer @CX25WW

Role Description

We are looking for an experienced Senior Backend/API Developer to architect, develop, and maintain the backend infrastructure that powers the Ardhanarishvara platform. The successful candidate will design scalable APIs, secure integration layers, authentication services, event-driven workflows, and cloud-native backend systems capable of supporting high availability, data security, and future expansion. This is a senior engineering role with significant influence over technical architecture and engineering standards.

Key Responsibilities

• Design scalable backend architecture and microservices.
• Develop secure RESTful and GraphQL APIs.
• Build API gateways and middleware for internal and external integrations.
• Design and manage relational and NoSQL databases.
• Integrate the backend with Flutter mobile applications.
• Implement secure authentication and authorization services.
• Develop asynchronous processing and event-driven workflows.
• Integrate approved government digital services and external APIs.
• Build integrations with enterprise applications and SaaS platforms.
• Monitor application performance and optimize backend services.
• Ensure security, privacy, logging, auditing, and compliance.
• Collaborate with mobile developers, AI engineers, UI/UX designers, QA, and DevOps teams.
• Conduct architecture reviews and code reviews.
• Produce technical documentation and API specifications.

Qualifications

• 7+ years in backend software development.
• Minimum 5 years designing enterprise APIs.
• Experience delivering production-grade cloud applications.
• Demonstrated experience leading backend architecture for complex, integrated platforms.
• Equivalent professional experience with a strong technical portfolio will also be considered.

Requirements

• Core Technical Skills
• Backend Languages: Node.js (Preferred), Python, Java, .NET Core, Go
• Frameworks: Express.js, NestJS, FastAPI, Spring Boot, ASP.NET Core
• API Development: REST APIs, GraphQL, OpenAPI (Swagger), Webhooks, API Gateway, OAuth 2.0, JWT Authentication
• Databases: PostgreSQL, MySQL, Microsoft SQL Server, MongoDB, Redis
• Cloud Platforms: Microsoft Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP)
• Containerization & DevOps: Docker, Kubernetes, GitHub Actions, Azure DevOps, Jenkins, CI/CD Pipelines
• Required Integration Experience:
• Experience integrating enterprise systems with external platforms, including:
• Government Digital Services: Digital identity verification, Document verification services, Digital signature services, Public information APIs, Citizen service integrations
• Google Services: Google Maps Platform, Google Places API, Firebase, Firebase Authentication, Firebase Cloud Messaging, Google Analytics, Google Cloud APIs
• Zoho Ecosystem: Zoho CRM, Zoho Books, Zoho Desk, Zoho Creator, Zoho Flow, Zoho Sign, Zoho Mail, Zoho Campaigns, Zoho APIs
• Payment Gateway Integration: Razorpay, Cashfree, PhonePe, PayU, Stripe, PayPal
• AI Platform Integration: OpenAI APIs, Azure OpenAI, Google Gemini, Anthropic Claude, OCR Services, Speech-to-Text APIs, Translation APIs, Communication Platforms (Email APIs, SMS Gateways, Push Notifications, WhatsApp Business API, Video Meeting APIs)
• Security Requirements:
• Strong knowledge of OAuth 2.0, JWT, SSL/TLS, Encryption at Rest, Encryption in Transit, Secure API Design, OWASP API Security Top 10, Role-Based Access Control (RBAC), Multi-Factor Authentication (MFA), Audit Logging, Rate Limiting, API Throttling, Secrets Management
• Preferred Experience:
• Enterprise Integration Platforms
• Event-Driven Architecture
• Message Queues (RabbitMQ, Kafka, Azure Service Bus)
• ElasticSearch
• Background Job Processing
• Serverless Architecture
• Infrastructure as Code
• AI Workflow Automation
• Healthcare or Government Projects
• Identity Management Platforms

Benefits

• Employment Type: Choose to work with us as either a Full-Time Employee or on a Project-Based Contract, depending on your availability and preference.
• Location: Open to candidates worldwide. This is a remote opportunity, and applicants from any country are welcome to apply.
• Language Requirement: Proficiency in English is mandatory, as all verbal and written communication with the team, clients, and stakeholders will be conducted in English.
• Compensation & Payment Schedule:
• Full-Time Employment: Compensation is processed monthly, with salary credited on the last working day of each month, subject to the terms of employment.
• Project-Based Engagement: Project-based professionals will be compensated strictly based on the pre-approved project milestones defined in the Statement of Work (SOW). Payments will be released only after the successful completion, review, and formal acceptance of the agreed milestone. Each milestone is considered a complete deliverable. Partial or incomplete milestone submissions will not qualify for milestone payment until all agreed acceptance criteria have been met. Timely delivery is a critical requirement. Delays in milestone completion may impact dependent activities, project schedules, and overall delivery timelines. Developers are expected to proactively communicate risks, blockers, or anticipated delays as soon as they are identified.
• Project Duration: The estimated duration of the Project Ardhanarishvara mobile application is approximately 24 months, with multiple development phases and milestone-based deliveries throughout the project lifecycle.
• We are looking for professionals who can demonstrate ownership, accountability, and a strong commitment to delivering high-quality work on schedule.