Senior Backend Engineer

Webhosting; Bengaluru; On-site; INR 3,000,000 - 7,000,000; Full time

Job summary

DigiCert in Bengaluru seeks an experienced Systems Engineer to design and secure the identity fabric for autonomous AI workloads. You will shape a zero-trust platform across multi-cloud environments and cryptographically verify agent actions.

You will work with cryptographers and cloud engineers to define the stack, policies, and scalable infrastructure, building runtime enforcement and governance engines. Candidates should have distributed systems expertise, Kubernetes, PKI, SPIFFE, and

Qualifications

• Deep experience building distributed systems.
• Hands-on with SPIFFE/SPIRE, PKI, and mTLS; understanding of certificate lifecycle, OIDC, OAuth2.
• Kubernetes expertise; Envoy, Istio/Linkerd, and Open Policy Agent (OPA).
• Cloud experience with AWS, GCP, or Azure; infrastructure as code (Terraform).
• Bias for shipping; building CI/CD pipelines and observability stacks (Prometheus/Grafana).
• Experience with AI Agents (LangGraph, CrewAI, AutoGen) and LLM APIs (OpenAI, Anthropic).

Responsibilities

• Architect and build the Identity Foundation: Design and own a cryptographically secure identity system for all AI workloads.
• Build Runtime Enforcement: Develop high-performance systems to control agentic interactions in real-time with minimal latency.
• Define Governance Logic: Translate human policies into machine-executable rules controlling tool access and data/LLM usage.
• Design for Resilience and Scale: Create secure-by-default infrastructure for thousands of concurrent agents across multi-cloud environments.
• Shape the Technical Culture: Define the core stack, engineering standards, and help build the team.

Skills

Distributed systems

Go or Rust

SPIFFE/SPIRE

PKI & mTLS

Kubernetes

Envoy/Service Mesh

OPA

Cloud platforms

Terraform

CI/CD

Prometheus/Grafana

AI Agents experience

Tools

Kubernetes

Job description

DigiCert is a global leader in intelligent trust. We protect the digital world by ensuring the security, privacy, and authenticity of every interaction. Our AI-powered DigiCert ONE platform unifies PKI, DNS, and certificate lifecycle management, to secure infrastructure, software, devices, messages, AI content and agents. Learn why more than 100,000 organizations, including 90% of the Fortune 500, choose DigiCert to stop today’s threats and prepare for a quantum-safe future at www.digicert.com

Job summary

We are building the trust layer for the agentic future. As AI agents move from simple chatbots to autonomous workloads with access to sensitive enterprise data, the industry lacks a standard for Identity, Authentication, and Governance. You will build the core security infrastructure that defines how agents are identified and controlled. Our mission is to build a “Zero Trust” architecture for AI-ensuring that every action an agent takes is cryptographically verifiable, authorized, and safe. You will be instrumental in setting our technical culture, selecting our stack, and scaling a platform that will secure the next generation of enterprise AI.

What you will do

• As part of the engineering team, you’ll work alongside industry-leading cryptographers, AI/ML innovators, cloud infrastructure experts, and security engineers who are defining the future of secure digital interactions.
• Architect and build the Identity Foundation: Design and own a cryptographically secure identity system that serves as the “source of truth” for all AI workloads, ensuring every agent has a verifiable and tamper‑proof digital passport.
• Build Runtime Enforcement: Develop high-performance systems to control agentic interactions in real-time. You will ensure that agents operate strictly within their authorized boundaries without introducing latency.
• Define Governance Logic: Create the engines that translate complex human policies into machine-executable rules, controlling how agents access tools, databases, and LLMs.
• Design for Resilience and Scale: Build “secure‑by‑default” infrastructure that can handle thousands of concurrent autonomous agents across multi‑cloud environments, ensuring the system remains tamper‑proof.
• Shape the Technical Culture: You will select our core stack, define our engineering standards, and help build the team.

What you will have

• Systems Mastery: Deep experience building mission-critical distributed systems. You are a master of systems‑level languages (like Go or Rust) and you have built distributed high performance systems from ground up.
• Identity & Security Infrastructure: Hands‑on experience with SPIFFE/SPIRE, PKI, and mTLS. You understand certificate lifecycle management, OIDC, and OAuth2 at a protocol level.
• Cloud‑Native Networking: Expert‑level knowledge of Kubernetes (K8s) You have worked extensively with Envoy Proxy, Service Meshes (Istio/Linkerd), and Open Policy Agent (OPA).
• Cloud & DevOps: Experience deploying and securing production workloads on AWS, GCP, or Azure. You are comfortable with Infrastructure as Code (Terraform)
• You have a “bias for shipping” and are comfortable building CI/CD pipelines and observability stacks (Prometheus/Grafana) from scratch.
• AI Experience (Desirable): Prior experience or a strong interest in working with AI Agents (LangGraph, CrewAI, AutoGen), LLM APIs (OpenAI, Anthropic), and the Model Context Protocol (MCP)