Lead Engineer

Gemsource It Consulting; India; On-site; INR 3,500,000 - 7,000,000; Full time

Job summary

Gemsource It Consulting seeks experienced Lead Engineers / Senior Engineers to build and operate a scalable B2B API Platform and Developer Portal for secure integrations with partners, fintechs, and enterprise clients.

The role emphasizes platform engineering, API ecosystem development, cloud-native architecture, and developer enablement, with hands-on work on Node.js, TypeScript, Next.js, and cloud services on GCP/GKE.

Qualifications

• 10+ years of software engineering experience.
• Strong hands-on expertise in Node.js, TypeScript, and Next.js.
• Experience building API platforms and microservices architectures.
• Deep knowledge of REST APIs, OAuth2, JWT, and API security best practices.
• Hands-on with API gateways (Apigee preferred), Kubernetes (GKE), Istio, and cloud-native development on GCP.
• Experience with CI/CD, automated testing, and DevOps practices.

Responsibilities

• Lead hands-on platform engineering and backend service design.
• Build and maintain scalable microservices using Node.js and TypeScript.
• Develop API proxies and policies in Apigee X.
• Implement secure API integrations using OAuth2, JWT, and IAM services.
• Develop and enhance B2B Developer Portal and Sandbox features using Next.js and Node.js.
• Deploy and operate services on Google Kubernetes Engine (GKE) and manage cloud resources.
• Implement policy-based authorization using OPA and ensure observability with monitoring tools.
• Own CI/CD pipelines and automated testing; drive DevOps practices across the team.

Tools

Node.js

TypeScript

Next.js

Job description

We are looking for experienced and hands-on Lead Engineers / Senior Engineers to build and operate a scalable B2B API Platform and Developer Portal that enables secure integrations with partners, fintechs, and enterprise clients.

This role focuses on platform engineering, API ecosystem development, cloud-native architecture, and developer enablement.

Key Responsibilities:

Hands-on Platform Engineering

• Design and implement low-level platform components and backend services.
• Build and maintain scalable microservices using Node.js and TypeScript.
• Develop and manage API proxies and policies in Apigee X.
• Implement secure API integrations using OAuth2, JWT, and enterprise IAM services.

Developer Portal & Integration Enablement

• Develop and enhance B2B Developer Portal and Sandbox features using Next.js and Node.js.
• Support partner onboarding, API product configuration, and access management.
• Implement policy-based authorization using OPA (Open Policy Agent).

Cloud & Platform Operations

• Deploy and manage services on Google Kubernetes Engine (GKE).
• Work with PostgreSQL (Cloud SQL), Redis (Google Memory Store), and Google Pub/Sub.
• Implement service-to-service communication using Istio service mesh.
• Manage secrets and credentials using HashiCorp Vault.

DevOps & Platform Reliability

• Build and maintain CI/CD pipelines using Codefresh and GitHub Enterprise.
• Implement automated testing frameworks such as Jest, Playwright, and Artillery.
• Monitor, troubleshoot, and optimize platform services using:
• New Relic
• Dynatrace
• GCP Monitoring
• Splunk
• Support incident management, root cause analysis, and operational improvements.

Collaboration & Agile Delivery

• Collaborate with product managers, architects, and engineering teams to deliver platform capabilities.
• Participate in sprint planning, backlog refinement, release management, and agile ceremonies.

Required Skills & Qualifications:

• 10+ years of software engineering experience.
• Strong hands-on expertise in:
• Node.js
• TypeScript
• Next.js
• Experience building API platforms and microservices architectures.
• Strong understanding of REST APIs, OAuth2, JWT, and API security best practices.
• Hands-on experience with API gateways, preferably Apigee.
• Strong knowledge of Kubernetes (GKE) and cloud-native development on GCP.
• Familiarity with Istio service mesh and distributed systems architecture.
• Experience with CI/CD pipelines, automated testing, and DevOps practices.
• Knowledge of monitoring and observability tools such as New Relic, Dynatrace, and Splunk.

Preferred Skills:

• Experience in Banking, FinTech, or Payments domain.
• Exposure to B2B integrations, developer portals, and API ecosystems.
• Strong problem-solving, debugging, and stakeholder management skills.