Maksym G.

Staff Software Engineer Senior Go Engineer @Deliveroo

London, GB

Led design and delivery of high-scale backend services (20k+ requests per minute) in a global three-sided marketplace, improving system reliability and business KPIs such as order success rate and latency- Architected distributed systems and microservices in Go (Golang) for real-time logistics and payments, reducing critical path latency and enabling growth in daily active users and transaction volume- Owned end-to-end delivery of web-based applications (design, implementation, deployment, observability), consistently meeting availability SLOs and supporting revenue-impacting features- Optimised PostgreSQL-based data models and queries for high-throughput financial and operational workloads, reducing query times and infrastructure cost per transaction- Implemented caching and search layers with Redis, DynamoDB and Elasticsearch to support high-traffic APIs, increasing throughput and improving p95 response times for customer- and partner-facing flows- Partnered with product and data teams to translate ambiguous business problems into technical roadmaps, aligning engineering work with targets such as GMV, conversion rate and customer retention- Mentored and coached engineers across multiple teams, raising code quality and accelerating delivery of roadmap initiatives while maintaining a high bar for engineering excellence- Participated in and led technical interviews (system design, distributed systems, backend engineering), shaping hiring strategy for Staff and Senior Software Engineers in high-scale environments.