Senior Backend Developer

2 days ago

Belgrade, Central Serbia Insightful Full time €40,000 - €80,000 per year

About us

Insightful is a market-leading platform for employee productivity and workforce analytics. We process really big data, synthesize it into actionable insights, and ultimately provide a best-in-class, easy-to-use product that empowers enterprise customers to improve employee productivity, business processes, and overall staff well-being.

Job Description

We're excited to welcome an experienced engineer to help us build, scale, and continuously improve our microservices architecture. You'll be working on both developing new features and enhancing existing systems to ensure they remain robust, maintainable, and high-performing. Our focus is on quality over quantity, and with the high volume of data we process, our challenges are primarily performance-driven.

Built on a clean foundation and continuously updated, our stack includes: (TypeScript), Elasticsearch, MongoDB, Kafka, and Redis on Kubernetes (GKE).

We value a start-up mindset, thoughtful code, and people who are proactive and driven to move things forward in a fast-paced environment.

Responsibilities:

  • Work as a Backend Developer within a cross-functional team, collaborating closely with other tech & product roles
  • Write clean, scalable, high-performance, and reusable code, with a strong focus on testing and maintainability
  • Optimize applications to ensure maximum speed, efficiency, and scalability
  • Implement and monitor application metrics and logs to ensure reliability and detect regressions early
  • Maintain, improve, and refactor existing libraries and modules as needed
  • Ensure backend systems follow security and compliance best practices
  • Contribute to team knowledge sharing through code reviews, documentation, and mentorship
  • Help define and uphold backend development best practices
  • Evaluate and select the most effective tools and technologies to enhance daily workflows

You are a great fit for this role, if you have:

  • 6+ years of programming experience
  • 3+ years of hands-on experience with
  • Strong proficiency in JavaScript and TypeScript
  • Solid fundamentals in software design, architecture, and development best practices
  • Understanding of the nature of asynchronous programming
  • Experience working with databases, preferably NoSQL
  • Comfort with writing and maintaining automated tests
  • Fluency in English, both written and spoken

Bonus points:

  • Experience with ElasticSearch, MongoDB, or Kafka
  • A background in microservices architecture and distributed systems
  • Comfort with real-time communication technologies such as WebSockets
  • Familiarity with front-end technologies such as Angular, HTML, and CSS

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