Ios Developer jobs in United Kingdom

**Craft:**Technology & Development**Job Description:****Staff Software Engineer (Full Stack) – Ads Engineering**Activision Blizzard Media is the gateway for brands to the #1 cross-platform gaming company in the western world, with hundreds of millions of players across more than 190 countries. Our portfolio includes iconic mobile, PC, console, and esports franchises such as Candy Crush, Call of Duty, Overwatch, World of Warcraft, and StarCraft. Great game experiences create great marketing experiences.**Your Role**As a Staff Software Engineer (Full Stack) on the Ads Engineering team, you will provide technical leadership in designing and building highly scalable advertising and monetization platforms. You will work across backend and frontend systems, influence architectural decisions, and partner closely with product, design, and engineering teams to deliver robust, high-impact solutions at massive scale.**Responsibilities**- Lead the design and development of highly scalable, highly available Ads & Monetization platforms handling billions of requests per day.- Drive end-to-end system architecture across backend services and frontend applications.- Translate complex business requirements into technical designs and execution plans.- Collaborate with architects, engineers, product managers, and designers on cross-functional initiatives.- Provide technical leadership, mentorship, and guidance to senior and junior engineers.- Partner with DevOps and SRE teams to ensure operational excellence, reliability, and observability.- Select appropriate technologies and frameworks aligned with scalability, performance, and long-term maintainability.- Define and improve alerting, monitoring, and disaster recovery processes.- Champion engineering best practices, code quality, and performance optimization.**Qualifications**- BA/BS degree in Computer Science or a related technical field, or equivalent practical experience.- 10+ years of professional software engineering experience with demonstrated technical leadership.- Expertise in designing and building large-scale distributed systems and microservices (Java).- Strong full-stack experience, including modern frontend frameworks such as React.- Experience designing cohesive frontend and backend architectures.- Deep understanding of cloud platforms (AWS, GCP, or Azure).- Proficiency with NoSQL data stores such as DynamoDB, Cassandra, or HBase.- Experience with streaming and data processing technologies such as Kafka, Kinesis, or Flink.- Strong background in performance engineering, testing, and system optimization.- Excellent communication skills and ability to influence technical direction across teams.**Preferred Qualifications**- Experience with CI/CD pipelines, test automation, Jenkins, Gradle, and related tooling.- Experience with containerization and orchestration technologies such as Docker and Kubernetes.- Familiarity with AdTech platforms (e.g., Ad Serving, Demand Side Platforms).- Experience with XAML (optional/bonus).- Passion for usability, maintainability, and long-term system quality.**More About You**You are passionate about learning, teaching, and raising the technical bar across teams. You enjoy solving complex, systemic problems and are motivated to build durable solutions that scale with thebusiness. You are comfortable operating with ambiguity, taking ownership, and driving initiatives that have broad organizational impact.**About King**With a mission of *Making the World Playful*, King is a leading interactive entertainment company with more than 20 years of history of delivering some of the world’s most iconic games in the mobile gaming industry, including the world-famous Candy Crush franchise, as well as other mobile game hits such as *Farm Heroes Sag*a. King games are played by more than 200 million monthly active users. King, part of Microsoft (NASDAQ: MSFT), has Kingsters in Stockholm, Malmö, London, Barcelona, Berlin, Dublin, San Francisco, New York, Los Angeles and Malta. More information can be found at or by following us on , on Instagram, or on X.