Lead Backend Engineer (Mobile)

Mobile Backend Lead – Banking Domain

Job Summar

yWe are seeking an experienced Mobile Backend Lead to architect, design, and lead the backend ecosystem powering enterprise-scale mobile banking applications. The ideal candidate will have strong expertise in backend architecture, banking-grade security, API platforms, microservices, cloud-native technologies, and high-availability distributed systems

.This role requires hands-on technical leadership in building secure, scalable, resilient, and high-performance backend systems supporting digital banking and financial services platforms

.
Key Responsibiliti

esBackend Architecture & Desi

• gnDesign and lead scalable backend architectures for mobile banking application
• s.Define microservices architecture, domain boundaries, API standards, and integration pattern
• s.Develop secure, reusable, and high-performance backend service
• s.Establish architecture governance, coding standards, and engineering best practice
• s.Drive backend modernization and cloud-native transformation initiative

s.
API & Mobile Backend Developm

• entDesign and develop RESTful APIs, GraphQL services, and Backend-for-Frontend (BFF) layers for mobile applicatio
• ns.Optimize APIs for mobile consumption, low latency, and high throughp
• ut.Implement API versioning, caching, throttling, retry, and resiliency strategi
• es.Collaborate with mobile engineering teams for seamless integration and performance optimizati
• on.Support real-time communication mechanisms such as push notifications and WebSocke

ts.
Security & Compli

• anceDesign and implement secure authentication and authorization mechanisms using OAuth2, OpenID Connect, JWT, MFA, and R
• BAC.Ensure secure API communication, encryption, token management, and secrets handl
• ing.Implement API security controls includ
• ing:API Gat
• ewayRate limi
• ting
• mTLSThreat protec
• tionWAF integra
• tionEnsure compliance with banking and security standards includ
• ing:PCI
• DSS
• GDPR
• PSD2RBI security guidel
• inesOWASP API Security To

p 10
Distributed Systems & Transaction Proce

• ssingDesign highly available and fault-tolerant distributed sys
• tems.Implement reliable transaction processing mechanisms with strong consistency guaran
• tees.Define retry, reconciliation, compensation, and rollback strate
• gies.Lead implementation of event-driven architecture using Kafka or similar technolo
• gies.Design systems supporting millions of transactions with high reliability and perform

ance.
Cloud &

• DevOpsLead cloud-native backend deployments on AWS, Azure, o
• r GCP.Drive containerization and orchestration using Docker and Kuber
• netes.Define and implement CI/CD pipelines using Jenkins, GitHub Actions, GitLab CI, or Azure D
• evOps.Implement Infrastructure as Code (IaC) using Terraform, Helm, or equivalent
• tools.Collaborate with DevOps and security teams to implement DevSecOps best prac

tices.
Database & Performance Engi

• neeringDesign scalable relational and NoSQL database archite
• ctures.Optimize database performance, indexing, partitioning, and replication stra
• tegies.Implement caching strategies using Redis or distributed caching sol
• utions.Monitor and improve backend performance, throughput, latency, and scala

bility.
Monitoring & Obser

• vabilityDefine observability and production monitoring st
• andards.Implement centralized logging, distributed tracing, and transaction mon
• itoring.Utilize tools
• such as:Pr
• ometheu
• sGrafanaE
• LK Stac
• kDatadogN
• ew RelicDrive incident management, root cause analysis, and production support exc

ellence.
Leadership & Stakeholder M

• anagementLead and mentor backend engineeri
• ng teams.Collaborate with enterprise architects, mobile teams, product owners, QA, DevOps, and securi
• ty teams.Drive technical decision-making, architecture reviews, and risk ass
• essments.Participate in project estimation, roadmap planning, and technical strategy dis
• cussions.Manage technical debt and continuous improvement ini

tiatives.
Required Skills & Qual

ificationsTechni

• cal Skills10+ years of backend engineering experience with 5+ years in technical leadership or backend architect
• ure roles.Strong expertise in one or more backend tec
• hnologies:Java / S
• pring BootNode.j
• s / NestJ
• S.NET CoreStrong underst
• anding of:Microservices ar
• chitectureDistribut
• ed systems
• API designEvent-driv
• en systemsCloud-native d
• evelopmentHands-on experi
• ence with:Kafka
• / Rab
• bitMQRedisPostgreSQL / Orac
• le / MySQLMongoDB / Cassandra
• / DynamoDBKubernetes &a

mp; Docker
Banking Domain

• ExperienceProven experience in banking, fintech, or financial service
• s projects.Strong unders
• tanding of:Digital bankin
• g platformsPayments &
• ; transfersTransaction
• processingFraud prevent
• ion systemsCore banking i
• ntegrationsExperience handling banking compliance and regulatory re

quirements.
Securi

• ty ExpertiseStrong knowledge of API and applicati
• on security.Experience i
• mpleme
• nting:OAuth2Op
• enID ConnectJWT lifecycl
• e m
• anagementMFAAPI Gate
• way securityEncryption & secret
• s managementSecure codi

ng practices
Preferred Q

• ualificationsExperience with Backend-for-Frontend (BFF) architecture for mobile
• applications.Experience with CQRS and Event Sourc
• ing patterns.Knowledge of service mesh technologies s
• uch as Istio.Experience in multi-region or disaster recovery a
• rchitectures.Cloud certifications on AWS, Azure, or G

CP prefer

• red.
  EducationBachelor's or Master's degree in Computer Science, Engineering, or

related fiel

• d.
  Nice to HaveExperience with AI-driven fraud detection or analy
• tics platforms.Exposure to Open Banking and PSD
• 2 integrations.Experience supporting super apps or enterprise digi
• tal ecosystems.Knowledge of serverless

architectures.

• Key CompetenciesBackend Solut
• ion Architectur
• eAPI EngineeringBanking Security
• & ComplianceDis
• tributed SystemsCl
• oud & DevOpsPerform
• ance EngineeringTech
• nical LeadershipStakeh
• older ManagementProblem Solving & St

rategic Thinking
Inte

rview Focus AreasCandidates wil

• l be assessed on:Microservices and distributed sy
• stem architectureMobile backe
• nd and API designBanking securi
• ty and complianceScalability and resil
• iency engineeringTransaction processin
• g and consistencyCloud-native and
• DevOps practicesMonitoring
• and observabilityLeadership and stake
• holder managementReal-world banking backend archi