Full Stack Engineer - Traffic Management - London

TikTok; Greater London; On-site; GBP 50,000 - 80,000; Full time

Job summary

A leading social media platform based in Greater London is seeking experienced developers to join the Edge Platform team. In this role, you will design and build a control system that directs traffic based on performance and cost, analyze user routing performance, and support various services. Candidates should hold a Master’s degree in related fields and possess strong knowledge of networking protocols and experience in programming. Join a team driving innovation and enhancing user experience across the globe.

Qualifications

• Minimum qualifications include a relevant degree and experience in networking.
• 3+ years’ experience in programming languages such as Go.
• Knowledge of networking metrics and protocols is essential.

Responsibilities

• Design and build a traffic control system based on performance-based routing strategies.
• Analyze and troubleshoot routing layer performance.
• Support internal and external services for public internet connectivity.

Skills

Networking protocols knowledge (BGP, IP, TCP, UDP)

Experience in programming languages (Go, Shell, Python)

Networking tools usage (ping, mtr, traceroute)

Knowledge of HTTP, HTTPS, QUIC

Fast learner

Education

Master’s or bachelor's degree with 3+ years’ experience in Computer Science or related fields

Tools

Kubernetes

DNS services

Job description

Responsibilities

Edge Platform team is seeking experienced developers for our edge platform networking and maintain its stability as well as drive the functionality and capability of our infrastructure to the next level. Our team builds cross sites (also cross uplink providers) traffic management system based on DNS, to manage TikTok's self-built CDN PoPs, supporting user performance optimization and resource load balancing. Edge Platform team operates hundreds of PoPs and their networking and traffic around the world to run edge workloads (e.g. CDN cache, live streaming, gaming, real-time communication, etc.). The cross site traffic management system is one of the core parts of the platform, as it has a direct impact on user experience. We are looking for passionate engineers to join and work together to build a traffic management system that provides one-stop solutions for edge services running on our edge platform.

• Design and build a control system that directs traffic following performance-based or cost-based routing strategies
• Global TikTok users routing layer performance analysis and troubleshooting
• TikTok internal and external services support on public internet topology and connectivity

Qualifications

Minimum Qualifications:

• Master’s degree (or bachelor’s degree with 3+) years of experience in Computer Engineering, Electrical Engineering, Computer Science, or related quantitative fields
• Knowledge of networking protocols such as BGP, IP (IPv4 and IPv6), TCP, UDP
• Experience with networking tools, including ping, mtr, traceroute
• Experience with networking metrics, including SNMP, sflow / netflow
• Knowledge of HTTP, HTTPS, QUIC
• 3+ years’ experience in one or more programming languages such as Go, or scripting experience in Shell and Python

Preferred Qualifications:

• Experience with Kubernetes
• Experience with DNS service
• Knowledge of internet OSI model
• Fast learner

About TikTok

TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.

Why Join Us

Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company.

Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.

Diversity & Inclusion

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.