About the Role
As a Senior Backend Engineer, you will be a key player in developing and scaling the Contacts and Inbox services within the SaaS Engage Platform at Sinch. You will be part of a cross-functional, autonomous team that sets its own goals and is responsible for every stage of the software development lifecycle – from design to deployment and maintenance.
Your focus will be on building high-impact, scalable, and distributed backend services, ensuring reliability, performance, and extensibility. The code you develop will power critical messaging and engagement functionalities across different product lines.
What You’ll Do
- Work across the entire development lifecycle, from planning, design, and implementation to deployment, monitoring, and maintenance.
- Design highly available, distributed, and event-driven microservices using Java.
- Optimize and fine-tune performance in high-throughput, real-time messaging systems.
- Implement and enhance APIs, messaging pipelines, and data models for seamless user interactions.
- Work with non-relational databases like MongoDB, ensuring efficient data storage and retrieval.
- Collaborate closely with frontend engineers, product managers, and other stakeholders to define product requirements and deliver high-quality features.
- Ensure scalability, security, and observability of services while following best practices in software development.
- Participate in code reviews, mentoring, and technical discussions to elevate the engineering culture.
- Take full ownership of your code—you build it, you run it.
*Please apply your resume in English!
What We Look For
- 6-8 years of backend development experience, with strong expertise in Java.
- Solid understanding of microservices architecture and distributed systems.
- Hands-on experience with non-relational databases (MongoDB preferred).
- Familiarity with event-driven architectures and message queues like Kafka.
- Strong problem-solving and architectural decision-making skills.
- Experience designing RESTful APIs and working with cloud-native applications.
- Ability to write clean, testable, and maintainable code with a focus on performance and reliability.
- Comfortable working in an autonomous, fast-paced, and multicultural team environment.
- Fluency in English (both written and spoken).
Nice to Have
- Experience with Atlas Search or Elasticsearch for advanced search capabilities.
- Prior experience building scalable SaaS platforms.
- Hands-on expertise in event-driven system design and real-time messaging.
- Passion for automation in functional and performance testing.
Why Join Us?
- Work on a high-scale, mission-critical platform powering real-time communications.
- Be part of a collaborative and self-driven team where you have ownership over your work.
- Competitive salary, flexible work culture, and opportunities for career growth.
- A chance to shape the future of customer engagement with cutting-edge technologies.
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