Key Accountabilities Activities

- Architecture Ownership:Design microservice boundaries, data models, and event-driven
patterns (Kafka/SQS/SNS). Define SLOs/SLIs, error budgets, capacity planning, and cost controls.

- Scalable Java Services:Build low-latency APIs (REST/gRPC/WebSocket) for signaling, rooms,
presence, chat, recording webhooks, webhooks for AI/ASR pipelines. Optimize hot paths (JIT/GC, connection pools, backpressure, circuit breakers, bulkheads, idempotency).

- Kubernetes Cloud: Lead EKS operations: HPA/VPA, PodSecurity standards, NetworkPolicies, Ingress (ALB), autoscaling, blue/green/canary.

- Own Terraform stacks: VPC, subnets/NAT, WAF/Shield, ALB/NLB, ECR, EKS, RDS/Aurora, ElastiCache, KMS, Secrets Manager.

- AWS Security Compliance: Enforce IAM least privilege, key rotation, S3 encryption/lifecycle, audit with CloudTrail/Config/GuardDuty. Implement data retention policies for recordings/transcripts.

- Observability Reliability: Establish OpenTelemetry tracing, Prometheus metrics, Grafana dashboards, alerting (SLO-based).

- Lead incident response, RCAs, and resilience testing (chaos, failure injection). Performance Scale

- Global routing/CDN strategies, write/read segregation, caching layers, CQRS where appropriate.

- Storage strategies for recordings: S3 multi-part, lifecycle Glacier, parallelized processing via Lambda/SQS.





- Drive CI/CD (GitHub Actions, ArgoCD), infrastructure promotion (devstagingprod), and change management

Background, Skills Qualifications

- Bachelors/Masters in CS/Software Engineering (or equivalent).

- 5+ years backend engineering; 5+ years Java in production; 5+ years Kubernetes in production.

- Expert with AWS (S3, Lambda, EC2, VPC design, Security Groups/NACLs, WAF/Shield, IAM, KMS).

- Advanced Terraform (module design, remote state backends, workspaces, CI plan/apply, drift detection).

- Knowledge of microservice architecture, event-driven systems, and distributed systems fundamentals.

- Proven scaling experience: autoscaling, load shedding, rate limiting, cache strategies, DB sharding/partitioning.

- Solid with PostgreSQL/Aurora, Redis, messaging (Kafka/SQS/SNS).

- Production-grade observability and incident management track record.

- [Bonus] WebRTC server components (STUN/TURN/SFU vendors like LiveKit/Janus/mediasoup), gRPC, service mesh (Istio/Linkerd), cost optimization

Disclaimer: This job posting has been aggregated from external source. Role details, content, and availability are subject to change. Applicants are advised to confirm the latest information directly on the company website before applying.

📌 Backend Engineer (India)
🏢 Hilink.ai
📍 India