Senior Cloud Software Engineer

Job Description:

We Dream. We Do. We Deliver.

At Merkle, a dentsu company, we power the experience economy. Whether we’re building the next great app, running CRM at scale for global brands, delivering technology architectures that support millions of users, or providing world-class data, identity, and insights solutions, it’s all in the name of crafting experiences that set brands apart from the competition. Backed by dentsu's legacy of innovation and creativity originating in Japan, we’ve spent over 35 years helping brands build loyalty, drive growth, and connect meaningfully with their audiences.

We’ve been named a global “Leader” by top industry analyst firms in categories as wide-ranging as digital transformation and commerce, experience design, engineering and technology integration, digital marketing, data science, CRM and loyalty, and customer data management.

We are looking for someone able to:

• Design and implement scalable, event-driven backend services on AWS, with Lambda as the primary compute layer alongside API Gateway, SQS, SNS, EventBridge, and Step Functions
• Write performant Lambda functions with a solid grasp of cold-start mitigation, execution context reuse, provisioned concurrency, and idempotency patterns
• Architect cloud infrastructure using IaC (AWS CDK, Terraform, or CloudFormation) and own it end-to-end from design through to deployment
• Build and maintain RESTful and/or GraphQL APIs with a focus on security, versioning, and developer experience
• Own and optimise CI/CD pipelines (Jenkins / GitHub Actions), enforcing automated testing, security scanning, and seamless production deployments
• Model and query both relational (PostgreSQL / Aurora) and NoSQL (DynamoDB) databases effectively
• Instrument serverless systems for observability, structured logging, distributed tracing, and monitoring via CloudWatch, Datadog, or equivalent
• Contribute meaningfully in a Scrum environment, breaking down complex technical initiatives into well-defined user stories
• Champion the use of AI-assisted development tooling (GitHub Copilot, Kiro, etc.) to raise the team's overall velocity

Your profile:

• 7+ years of professional backend engineering experience, with a significant portion in cloud-native, serverless architectures
• Expert-level TypeScript and modern JavaScript; strong Node.js background with production experience in NestJS, Express, or Fastify
• Deep hands-on AWS experience, you think in serverless patterns, not just services
• Comfortable owning architectural decisions and articulating them clearly to both technical peers and non-technical stakeholders
• High standards around code quality, test coverage, and peer review
• Curious about how AI tooling is reshaping engineering workflows, and proactive about applying it practically
• AWS certification (Developer or Solutions Architect) is a plus, as is experience with Kubernetes/EKS or the Serverless Framework

What’s in It for You?

Global Perspective: As part of a dentsu company, collaborate with over 70,000 talented colleagues across 145 countries to drive innovation on a global scale.

Flexibility & Balance: Enjoy hybrid work models, adaptable hours, and home office options.

Inclusive & Supportive Culture: We celebrate diversity and foster a respectful workplace where every team member’s unique perspective is valued, and everyone is welcome.

Well-balanced reward package: We offer competitive salaries, volunteer days, wellness days, modern offices, and a multi-cultural environment that fosters creativity and innovation.

Innovation-Driven Work: Contribute to projects that are reshaping industries and driving transformation with next-generation technologies and strategies.

Purpose-Driven Culture: Be part of an organization that fosters sustainable growth for brands, people, and society—where every contribution makes a meaningful impact.

Growth Opportunities: Expand your skills through training, mentorship, and data-driven projects that reshape customer experience and business outcomes. Explore opportunities in the whole dentsu network to expand your reach.

• many more attractive benefits are waiting for you, for more details regarding additional benefits, please ask your recruiter

Ready to join the team? Shape your unique career and reach your full potential. Apply now and join us in transforming the future together.

• At dentsu, Diversity, Equity, and Inclusion (DEI) is central to our vision: "To be at the forefront of people-centered transformations that shape society."

We cherish the unique talents and perspectives of all individuals, welcoming applicants regardless of gender, gender identity, nationality, religion, ethnicity, cultural background, sexual orientation, age, physical or mental ability. By embracing diverse perspectives, we create meaningful change and sustainable growth for our people, clients, and society. Our hiring decisions are guided by qualifications and role-specific requirements, ensuring a workplace free from discrimination and harassment.

Location:

Belgrade

Brand:

Merkle

Time Type:

Full time

Contract Type:

Permanent