Backend Developer

About The Company

Client Server is a leading technology company specializing in innovative communication solutions and real-time infrastructure. Renowned for its cutting-edge messaging platform, the company empowers developers and businesses worldwide to facilitate seamless, high-performance interactions. With a focus on scalability, reliability, and advanced AI integration, Client Server is committed to pushing the boundaries of distributed systems and real-time communication technology. The organization fosters a dynamic and inclusive environment that encourages innovation, collaboration, and continuous learning, making it an ideal place for talented engineers to grow and make a significant impact in the tech industry.

About The Company

Client Server is a leading technology company specializing in innovative communication solutions and real-time infrastructure. Renowned for its cutting-edge messaging platform, the company empowers developers and businesses worldwide to facilitate seamless, high-performance interactions. With a focus on scalability, reliability, and advanced AI integration, Client Server is committed to pushing the boundaries of distributed systems and real-time communication technology. The organization fosters a dynamic and inclusive environment that encourages innovation, collaboration, and continuous learning, making it an ideal place for talented engineers to grow and make a significant impact in the tech industry.

About The Role

We are seeking an experienced Backend Developer / Software Engineer to join our high-growth team. In this role, you will be instrumental in developing and enhancing our core messaging platform that supports millions of real-time interactions globally. Your primary focus will be on designing and implementing highly scalable distributed systems, ensuring optimal performance, reliability, and fault tolerance. You will work on key components such as low latency messaging, Pub/Sub services, state synchronization, and next-generation AI communication infrastructure. This position offers the opportunity to work in a modern, AI-first engineering environment, leveraging the latest tools and technologies to accelerate development while maintaining high standards of code quality and architectural integrity. The role provides flexibility with remote or hybrid working arrangements, with occasional visits to our North London office for team events and collaborations.

Qualifications

The ideal candidate will possess strong backend development experience with languages such as Go, Node.js, or other modern server-side technologies. A solid understanding of building and operating distributed systems, messaging platforms, event-driven architectures, or streaming technologies is essential. Experience with Pub/Sub messaging systems, scalability, concurrency, and performance optimization is highly desirable. Candidates should be comfortable working autonomously in a fast-paced environment and have a passion for solving complex technical challenges. Familiarity with AI development tools and maintaining a focus on engineering quality is advantageous. Knowledge of Kafka, RabbitMQ, NATS, cloud infrastructure, or developer platforms will be considered a plus. A proactive attitude, excellent problem-solving skills, and a commitment to delivering production-grade software are key attributes for success in this role.

Responsibilities

As a Backend Developer / Software Engineer, your responsibilities will include designing, developing, and maintaining scalable distributed systems that form the backbone of our real-time messaging platform. You will collaborate with cross-functional teams to define technical requirements and implement solutions that enhance system performance and reliability. Your role will involve optimizing low latency messaging, developing Pub/Sub services, and working on state synchronization mechanisms. You will also contribute to the architecture and technical decision-making process, ensuring the software remains robust, secure, and efficient. Additionally, you will leverage modern AI tools to streamline development workflows and improve system capabilities. Participating in code reviews, writing comprehensive documentation, and mentoring junior team members will be integral parts of your responsibilities. Continuous improvement and innovation to stay ahead of industry trends are expected from you in this role.

Benefits

Client Server offers a comprehensive and competitive benefits package designed to support your professional and personal well-being. The package includes a salary up to £120,000, along with an EMI share option scheme that allows you to benefit from the company's growth. You will enjoy 28 days of annual leave, enhanced maternity and parental leave policies, and the flexibility to choose your preferred kit and home office setup. The company provides a personal learning and development budget of £1,000 annually, plus 5% of your working time dedicated to personal projects, fostering continuous growth. Health benefits include BUPA Health Insurance, dental coverage, and mental health support. Additional perks encompass pension schemes, life assurance, income protection, and a fully paid one-month sabbatical after five years of service. The organization also promotes a healthy lifestyle with gym subsidies, cycle-to-work schemes, and more, ensuring a supportive environment for all employees.

Equal Opportunity

Client Server is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, gender, age, religion, sexual orientation, disability, or any other characteristic protected by law. We believe that a diverse workforce enhances innovation and drives better business outcomes, and we are dedicated to providing equal opportunities for all candidates and team members.