AWS Application Developer lead Engineer

Cloud and Platform Development Engineer with 10+ years of experience designing, modernizing, and operating enterprise Applications on cloud platforms (Full stack ) across AWS and Azure, solutions architecture, or similar role. Strong expertise in cloud architecture, platform engineering, infrastructure automation, observability, security, reliability engineering, and large-scale modernization initiatives Required Qualifications * In-depth knowledge of core AWS/Azure services, including but not limited to: * Backend & Distributed Systems: Strong Java/Spring Boot, microservices, REST/event-driven APIs and distributed-system design, including concurrency, caching, resiliency, idempotency and failure/recovery patterns. Data Architecture: Experience with MongoDB Atlas and relational/data-lake platforms, including data modelling, indexing, consistency, performance and high-volume operational workloads. Full-Stack Architecture: Ability to own end-to-end application architecture across backend and modern Angular/React frontends, including API/BFF patterns, authentication, performance and scalability. * AWS/Azure Architecture, Cloud Modernization, Platform Engineering, ARM, Bicep, CloudFormation, ArgoCD, Azure DevOps, Azure Networking * Compute: EC2, Lambda, Elastic Beanstalk * Storage: S3, EBS, EFS, Glacier * Networking: VPC, Route 53, ELB, Direct Connect * Databases: RDS, DynamoDB, Redshift * Security & Identity: IAM, KMS, GuardDuty, Security Hub * Proven experience with Infrastructure as Code (IaC) using AWS CloudFormation or Terraform. * Strong understanding of networking concepts (TCP/IP, DNS, VPN) and cloud security best practices. Preferred Qualifications * AWS Certified Solutions Architect – Associate or Professional certification. * Experience with containerization and orchestration technologies (Docker, Kubernetes, Amazon EKS). * Knowledge of CI/CD principles and experience with tools like Jenkins, GitLab CI, or AWS CodePipeline. * Proficiency in scripting languages such as Python, Bash, or PowerShell. * Experience with configuration management tools like Ansible, Chef, or Puppet. * Familiarity with other cloud platforms (e.g., Microsoft Azure, Google Cloud Platform). * Experience working in an Agile/Scrum development environment. Education: * Bachelor’s degree/University degree or equivalent experience * Master’s degree preferred This job description provides a high-level review of the types of work performed. Other job-related duties may be assigned as required. Cloud and Platform Engineer with 10+ years of experience designing, modernizing, and operating enterprise cloud platforms across AWS and Azure. Strong expertise in cloud architecture, platform engineering, infrastructure automation, observability, security, reliability engineering, and large-scale modernization initiatives \------------------------------------------------------ ## Job Family Group: Technology \------------------------------------------------------ ## Job Family: Applications Development \------------------------------------------------------ ## Time Type: Full time \------------------------------------------------------ ## Most Relevant Skills Please see the requirements listed above. \------------------------------------------------------ ## Other Relevant Skills For complementary skills, please see above and/or contact the recruiter. \------------------------------------------------------ Citi is an equal opportunity employer, and qualified candidates will receive consideration without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other characteristic protected by law. If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi. View Citi’s EEO Policy Statement and the Know Your Rights poster.