工作職責(zé):We?are?looking?for?a?senior?iOS?developer?responsible?for?the?development?and?maintenance?of?applications?aimed?at?a?range?of?iOS?devices?including?mobile?phones?and?tablet?computers.?Your?primary?focus?will?be?development?of?iOS?applications?and?their?integration?with?back-end?services.You?will?be?working?alongside?other?engineers?and?developers?working?on?different?layers?of?the?infrastructure.?Therefore,?a?commitment?to?collaborative?problem?solving,?sophisticated?design,?and?the?creation?of?quality?products?is?essential.Responsibilities：1.Design?and?build?applications?for?the?iOS?platform.2.Ensure?the?performance,?quality,?and?responsiveness?of?applications.3.Collaborate?with?a?team?to?define,?design,?and?ship?new?features.4.Identify?and?correct?bottlenecks?and?fix?bugs.5.Help?maintain?code?quality,?organization,?and?automation.任職資格:Qualifications:1.Proficient?with?Objective-C?or?Swift?(depending?on?project?requirements),?and?Cocoa?Touch.2.Experience?with?iOS?frameworks?such?as?Core?Data,?Core?Animation,?etc.3.Experience?with?offline?storage,?threading,?and?performance?tuning.4.Familiarity?with?RESTful?APIs?to?connect?iOS?applications?to?back-end?services.5.Knowledge?of?other?web?technologies?and?UI/UX?standards.6.Understanding?of?Apple’s?design?principles?and?interface?guidelines.7.Knowledge?of?low-level?C-based?libraries?is?preferred.8.Experience?with?performance?and?memory?tuning?with?tools?(such?as?Instruments?and?Shark,?depending?on?project?needs).9.Familiarity?with?cloud?message?APIs?and?push?notifications.10.Knack?for?bench?marking?and?optimization.11.Proficient?understanding?of?code?versioning?tools?(Git?is?a?plus).12.Familiarity?with?continuous?integration.