3 of 3 Backends for Frontends Jobs in Central London

client has a need for an experienced Android Engineer to join their team for an initial 8 week piece of work with potential to extend. This is a hybrid role and is outside of IR35 Android (primary depth) Kotlin and modern Android in large production codebases; Jetpack Compose … through the mobile networking layer to the backend service and back REST/GraphQL/gRPC, OpenAPI and contract inspection, API gateway and BFF patterns OAuth 2.0/OIDC token flows as implemented on device Third-party SDK inventory and assessment: analytics, payments, chat, fraud, marketing, feature flags Banking-specific ...

Prepurchase domain. Partner with product, security, and SRE teams to align technical decisions with business priorities. Drive observability improvements - ensuring services are instrumented for monitoring, alerting, and rapid incident response. Identifyandeliminatesingle points of failure, improving systemreliabilityand reducing on-call burden. Apply AI and machine learning tools to improve developer … TECHNICAL SKILLS) Proven ability to reasonaboutdistributed systemstradeoffs- scalability, consistency, availability, latency and make defensible design decisions under real constraints. This is the core bar for this role. Proven experience writing production code and building high-traffic systems at scale - this is a coding role first. Expertisein Java (17+ ...

client is looking for an experienced mobile architect to join their team on an initial 8 week piece of work with a good possibility to extend. This is a hybrid role and is outside of IR35. Able to reconstruct architecture of large existing systems from code, interviews and incomplete … Compose, Gradle multi-module builds: enough to read, question and validate, not necessarily to write Backend, API and integration Mobile-to-backend integration patterns: BFF, API gateway, REST/GraphQL/gRPC, versioning and contract management Identity and authorisation: OAuth 2.0, OIDC, token lifecycle, session management, step-up authentication; FAPI ...