Full-Stack Developer

About the roleAdGrid is hiring a Full-Stack Developer cum Tech Lead who pairs cloud optimization & computing expertise with a hands-on developer profile. You will architect, build, and operate secure, scalable, and cost-efficient systems; lead engineers; and independently drive complex, cross-functional projects end-to-end.What you'll do- Own architecture & delivery: Translate business goals into scalable designs; write high-quality code; lead planning, estimates, and execution across services and frontends.- Backend expertise (primary): Java 17+, Spring Boot/Spring Cloud, REST/gRPC APIs, async/event-driven patterns, caching, resilience, and observability.- Frontend leadership: Modern SPA (React/Next.js preferred); component standards, performance budgets, accessibility, and DX tooling.- Cloud optimization & computing: Design and operate on AWS/GCP/Azure (AWS preferred); right-size compute/storage/networking; optimize cost/performance; automate with IaC.- Data & messaging: Model relational schemas (PostgreSQL/MySQL), tune queries/indices; use Redis; build streaming pipelines with Kafka (topics, partitions, DLQ, schema registry).- Reliability & security: Define SLAs/SLOs; instrument SLIs; implement OWASP controls, secure secrets, encryption in transit/at rest; drive incident response and postmortems.- CI/CD & platform: Own pipelines (GitHub Actions/Jenkins/GitLab CI), containerization (Docker), orchestration (Kubernetes/EKS), blue/green & canary, feature flags.- Leadership & management: Mentor engineers, set code/architecture standards, conduct reviews, manage stakeholders, and create clear status/risks/decisions comms.- Quality mindset: Enforce unit/integration/contract/load tests (JUnit 5, Testcontainers, WireMock/Pact, k6/JMeter) and release readiness checklists.- FinOps practices: Track and reduce infra spend per user/request; implement autoscaling/TTL/lifecycle policies; ensure cost visibility.Must-have Qualifications- 7–8 years total engineering experience with deep expertise in Java + Spring Boot and production systems at scale.- Proven tech-lead experience: leading 3–6 engineers, owning multi-service deliveries, and coordinating cross-functional stakeholders.- Strong cloud skills (AWS preferred): VPC, IAM, ALB/NLB, EC2/EKS, RDS, S3, CloudFront, WAF, KMS/Secrets; IaC (Terraform/Pulumi).- Proficiency in React/Next.js (or equivalent), TypeScript/JavaScript, bundlers, and frontend performance tooling.- Solid with PostgreSQL/MySQL, Redis, and Kafka; understanding of eventual consistency and idempotency. Security fundamentals (OAuth2/OIDC, JWT, TLS/mTLS, input validation, least privilege IAM) and privacy-by-design instincts.- Excellent communication, documentation, and stakeholder management.Nice to have- Spring WebFlux/Reactor, Resilience4j, GraphQL;- Multi-region design, DR strategy (RPO/RTO), chaos testing;- Observability stack: Prometheus/Grafana, ELK/EFK, OpenTelemetry;- DevSecOps: SonarQube, Snyk/OWASP Dependency-Check, SBOM;- Experience in fintech/payments, consumer tech, or other low-latency domains.Success in 3-6 months- Ship a complex, multi-service project on time, meeting SLOs with actionable dashboards and runbooks.- Reduce infra cost per request/user by ≥15–25% while improving latency/throughput.- Establish team-wide engineering standards (lint/test/CI gates) and lift change failure rate ↓ and MTTR ↓.- Mentor team to consistently deliver with predictable velocity and high code quality.Our stack (indicative)- Java 17+, Spring Boot/Cloud/Data/Security- React/Next.js, TypeScript- REST/gRPC • PostgreSQL, Redis- Kafka (+Schema Registry/Avro) • Docker, Kubernetes (EKS)- AWS (VPC, IAM, ALB/NLB, RDS, S3, CloudFront, WAF, KMS/Secrets)- Terraform • GitHub Actions/Jenkins- Prometheus/Grafana, ELK/EFK, OpenTelemetry- SonarQube, Snyk.How to applyEmail with subject “Full-Stack Tech Lead (7–8 yrs) ” and include:- Resume (PDF)- A brief write-up on a system you built/scaled (problem, architecture, scale, SLOs, cost impact)- Links to repos/tech blogs/talks (optional)Equal OpportunityAdGrid is an equal-opportunity employer. We welcome applicants from all backgrounds and are committed to a fair, inclusive, and accessible hiring process.