Senior Backend Engineer (Go/Java)

About the jobQualgo is an R&D center specializing in cybersecurity products and solutions. We are on a mission to build a trusted cyberspace where individuals and businesses can thrive with confidence.Job SummaryWe are seeking a Senior Backend Engineer (Go/Java) to join our engineering team. In this role, you will be responsible for designing, developing, and maintaining robust backend systems that power various products at Qualgo. You will work on complex technical challenges related to system architecture, performance, scalability, and real-time data processing.As a senior engineer, you will be a key contributor to our backend foundation, collaborating closely with cross-functional teams to deliver high-quality, secure, and scalable solutions that support a wide range of use cases.Key ResponsibilitiesBackend System Design & Development:Design and maintain scalable, high-performance backend services.Build APIs and microservices to support data workflows and system components.Write high-quality, well-tested, and maintainable code (primarily in Go, potentially with some Java or Python).Real-time Processing:Design and implement systems for real-time data processing and event handling.Work with technologies like WebSockets, message queues (Kafka, RabbitMQ), and streaming platformsData Pipeline Integration:Collaborate with data engineers to integrate backend services with data pipelines.Work with various data storage technologies (SQL, NoSQL, data warehouses).Scalability and Performance: Design and implement systems that can handle high volumes of data and traffic.Identify and address performance bottlenecks.Optimize system performance for speed, scalability, and cost-effectiveness.Security:Implement secure coding practices and work closely with the security team to ensure the security of the platform.Collaboration: Work effectively in a cross-functional team, collaborating with product managers, designers, Front-end engineers, data scientists, and other stakeholders.Communicate technical concepts clearly and concisely.QualificationsEducation:Bachelor’s degree in Computer Science, Engineering, or a related field. Master’s degree preferred.Experience:Minimum of 5+ years of experience in backend software engineering.Strong experience with Go or JavaExperience with building and deploying scalable, distributed systems.Experience with containerization and orchestration (Docker, Kubernetes).Experience with cloud platforms (AWS, GCP, Azure).Experience with databases (SQL and NoSQL).Experience with message queues (Kafka, RabbitMQ) or streaming platforms.Experience with real-time communication technologies (WebSockets) is a plus.Experience working in an Agile environment.SkillsSolid understanding of distributed systems concepts.Excellent problem-solving and analytical abilities.Good communication and collaboration skills.Passion for building high-quality, scalable, and secure systems.What we offerCompetitive salary and benefits package.Opportunity to work on a product that impacts millions of users.A dynamic and supportive work environment.Premium health insurance for you and your family.Professional growth and development opportunities.Annual leave 12 days per year + 1 Birthday Leave + 1 X’MasPerformance review: once per yearInternal training/sharing and professional Training coursesTeam building, company trip, year end party, monthly activities,….Devices: Macbook and screen (If needed)Free tea and coffeeComfortable working AreaWorking hour: 9am – 6pm from Monday to Friday