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Backend Engineer

Remote

As a Backend Engineer, you will architect and lead the backend for a high-scale RTC meeting platform. You’ll design resilient Java microservices on Kubernetes, own AWS architecture via Terraform, and drive scalability, security, performance, and cost. You’ll mentor engineers, set SLOs, lead incident response, and ensure the platform can scale globally.

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 (dev→staging→prod), and change management


Background, Skills & Qualifications

  • Bachelor’s/Master’s 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.

  • Strong 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

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