Backend Developer

Developer

Full Time

Belgrade, Serbia

About the Role

As a Backend Developer, you will design, build, and maintain the server-side systems and infrastructure that power our products. You will work closely with front-end developers, product managers, QA, and DevOps teams to deliver reliable, scalable, and secure back-end services. You will take ownership of API development, database architecture, and system integrations while ensuring that all back-end components meet performance, security, and quality standards.

Management

Responsibilities

Design, develop, and maintain robust back-end services, APIs, and microservices
Build and optimize database schemas, queries, and data models for performance and scalability
Integrate third-party services, APIs, and internal systems as required by product needs
Collaborate with front-end developers to define and deliver well-structured, documented APIs
Write clean, testable, and maintainable code following established engineering standards
Participate in code reviews, providing and receiving constructive technical feedback
Identify, debug, and resolve back-end defects and performance bottlenecks
Contribute to system architecture discussions and technical design decisions
Ensure back-end systems adhere to security best practices and compliance requirements
Monitor system health, respond to incidents, and implement preventative measures
Maintain thorough documentation for services, APIs, and infrastructure components
Collaborate with QA to support testing cycles and ensure back-end reliability
Participate in agile ceremonies, including stand-ups, sprint planning, retrospectives, and demos
Continuously evaluate and improve back-end processes, tooling, and development practices

Requirements

Fluency in written and spoken English is mandatory
Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience
More than 3 years of professional back-end development experience
Strong proficiency in one or more back-end languages such as C#, Node.js, Go, Python, Java, Ruby, or similar
Solid experience designing and working with both relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis, or similar)
Experience building and consuming RESTful APIs and/or GraphQL services
Familiarity with cloud platforms such as AWS, GCP, or Azure and their core services
Understanding of authentication and authorization mechanisms, including OAuth, JWT, and SSO
Experience with version control using Git and collaborative development workflows
Solid understanding of software engineering principles, including scalability, reliability, security, and maintainability
Strong problem-solving skills and ability to work effectively in a team environment

Preferred Skills

Experience with microservices architecture and containerization tools, including Docker and Kubernetes
Familiarity with message queuing systems such as RabbitMQ, Kafka, or similar
Exposure to CI/CD pipelines and DevOps practices
Experience with caching strategies and performance optimization techniques
Knowledge of SaaS product architecture and multi-tenancy patterns
Familiarity with infrastructure-as-code tools such as Terraform or Ansible

About Proctorio

Proctorio is a learning integrity platform used by institutions and organizations worldwide to verify identity, protect assessments, and confirm that work is authentic. We have been building this technology since 2013.

Benefits

401(k) with dollar-for-dollar matching, fully paid medical coverage, career development support, and a pet-friendly office.

Equal Opportunity Employer

Proctorio is an equal opportunity employer. We consider all qualified applicants without regard to any characteristic protected by law.