Backend Engineer

Coralogix; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Autonomy and ownership

Hybrid work model

Global opportunities

Job summary

Coralogix in London is seeking a Backend Engineer to design, build and evolve scalable, event-driven systems that process millions of events per second with millisecond latency. You will own features from design through deployment, work with JVM languages (Java/Kotlin/Scala), Kafka and streaming tech, and collaborate with product managers to ship observable, resilient software in a SaaS environment.

The role emphasizes reliability, performance, and strong architectural practices within a global,

Qualifications

• Hands-on experience with observability platforms.
• 3+ years JVM stack development: Java/Kotlin/Scala.
• 3+ years building and operating distributed systems in production.
• Proven experience building highly available and reliable systems.
• Strong knowledge of distributed computing principles (consistency, partitioning, resilience).
• Hands-on data streaming with Apache Kafka, Spark Streaming, KafkaStreams or Apache Flink.
• 5+ years of software development experience.
• Proficiency in data modeling for large-scale distributed datasets.
• Familiarity with gRPC and Protobuf.
• Production experience in SaaS: metrics, logging, troubleshooting production systems.

Responsibilities

• Lead the design, development, and evolution of scalable, high-impact systems.
• Own features end-to-end, ensuring predictable production behavior from design through deployment.
• Solve complex technical challenges at scale using sound engineering principles and modern stream processing technologies.
• Collaborate closely with engineers and product managers to continuously improve the product.
• Drive both technical excellence and meaningful user outcomes.

Skills

Observability platforms experience

Distributed systems

Data streaming

JVM stack

Production-grade software

Distributed computing principles

gRPC & Protobuf

RocksDB tuning

Education

B.Sc. in Computer Science

Tools

Kafka

Kafka Streams

Spark Streaming

Flink

Kubernetes

ElasticSearch

Redis

RocksDB

gRPC

Protobuf

Job description

• We are looking for a Backend Engineer to join a growing group! Our Alerting backend powers real-time, streaming-based detection at massive scale, processing millions of events per second with millisecond latency to catch issues as they happen
• Built with a distributed, event-driven architecture, it supports complex pattern evaluation, dynamic enrichment, and fault-tolerant delivery for mission-critical observability
• Lead the design, development, and evolution of scalable, high-impact systems
• Own features end-to-end, ensuring predictable production behavior from design through deployment
• Solve complex technical challenges at scale using sound engineering principles and modern stream processing technologies
• Collaborate closely with engineers and product managers to continuously improve the product
• Drive both technical excellence and meaningful user outcomes
• Our Stack
• Scala(ZIO)
• Kafka Streams / Akka Streams
• Kafka
• ElasticSearch, Redis
• Kubernetes
• AWS

Benefits

• Grow with us: Over 50% of our leadership roles are filled through internal promotions. We believe in growing our people as we grow the company.
• Global opportunities: With team members in 28 countries, Coralogix offers a truly global work experience and diverse career paths across functions and geographies.
• Top talent, real impact: Join some of the best minds in observability. Our teams are passionate, expert, and deeply connected to the business impact of their work.
• Autonomy and ownership: We empower our people to make decisions, take initiative, and shape how things get done. We’re here for our employees, every step of the way.
• Kid-friendly & pet-friendly: We’re a company where parents, dog lovers (and yes, both!) can thrive. Our flexible, hybrid model and inclusive culture help people bring their whole selves to work.
• Diversity & belonging: A truly international workplace with a culture that celebrates differences and creates a strong sense of belonging for everyone.
• Business-driven impact: Every role at Coralogix is connected to our core business goals. No matter your position, you’ll see how your work directly contributes to the company’s success.
• Proven growth, unicorn status: Be part of a fast-growing company that has scaled year over year for the past 5 years & is proudly recognized as a unicorn in the tech industry

• Hands-on experience with observability platforms (Coralogix, Grafana, etc.)
• 3+ years of development experience with JVM stack - Java / Kotlin / Scala - Advantage
• 3+ years of experience developing and operating distributed systems in production
• B.Sc. in Computer Science or an equivalent field
• Proven experience in building systems that are highly available and reliable through strong architectural practices, monitoring, and proactive incident management
• Strong knowledge of distributed computing paradigms and principles, such as consistency, partitioning, and resilience
• Hands-on experience with Data Streaming technologies, including Apache Kafka, Spark Streaming, KafkaStreams, or Apache Flink
• 5+ years of software development experience
• Proficiency in data modeling and designing systems to handle large-scale, distributed datasets efficiently
• Familiarity with gRPC and Protobuf
• Hands-on experience with RocksDB optimizations and tuning
• Production experience in a SaaS environment - Metrics, Logging, Troubleshooting production systems