Senior Cloud Software Engineer (TypeScript / AWS)

About the role

Merkle, an experience consultancy with a heritage in data science and business performance, is hiring a Senior Cloud Software Engineer in Sofia. You will design, build and maintain scalable, high-performance backend services and distributed systems, working in an Agile/Scrum environment and helping define architectural patterns and DevOps workflows.

Key responsibilities

• Architect and implement event-driven backend services and APIs using TypeScript and Node.js
• Design and maintain AWS infrastructure (Lambda, ECS, DynamoDB, RDS, SQS, SNS, API Gateway)
• Own and optimise deployment pipelines with Jenkins and GitHub Actions, enforcing high test coverage
• Take part in Scrum ceremonies and help turn complex initiatives into estimable user stories
• Integrate generative AI tools such as GitHub Copilot or Amazon Q into daily work to speed coding, boilerplate generation and unit testing

Required profile

• 7+ years of professional software engineering experience, focused on cloud-native backend systems and Agile delivery
• Ability to conceptualise complex distributed systems and explain how they behave under heavy load
• An innovative mindset about how AI can streamline workflows
• Strong collaboration and communication skills within a cross-functional Scrum team

Required skills

• TypeScript and modern JavaScript (Node.js ecosystem)
• AWS services: Lambda, ECS/Fargate, DynamoDB, Aurora/RDS, API Gateway, SQS, SNS, EventBridge
• Jenkins, GitHub Actions and Infrastructure as Code (AWS CDK, Terraform or CloudFormation)
• Scrum/Agile; Jira or GitHub Projects
• Familiarity with AI-powered development tools and prompt engineering concepts

What we offer

• Hybrid work model, free parking for office workers, and 25 days of paid leave plus 3 well-being days
• Life, health and dental insurance or gift vouchers, sports card and food vouchers
• 2 days off for volunteering, and sponsorship of training, conferences and certifications