Cross-Platform Mobile Application Developer (Consultant)

The overall objective is to engage a highly experienced cross-platform mobile application consultant with demonstrated expertise in Artificial Intelligence integration to:

• Design and develop a secure mobile learning platform for Android and iOS.
• Build multilingual training and assessment capabilities.
• Develop an AI-powered assistant based on approved SARMAAN II knowledge sources.
• Enable offline learning and synchronization.
• Provide comprehensive management and administrative portals.
• Deliver scalable analytics and reporting capabilities.
• Ensure compliance with data privacy and security standards.
• Deploy, train administrators, and provide post-implementation support.

Scope of Work

The selected developer is responsible for the design, development, and deploying a platform architecture for an application to be hosted on the Google Play Store and Apple App Store.

The application must support Android and iOS devices, low-bandwidth environments, offline-first architecture, and synchronization services to ensure seamless access and data synchronization.

The platform architecture should incorporate services and functionalities for user administration, content management, assessment configuration, AI governance, reporting, and monitoring.

These should include API services, authentication services, learning management services, AI services, data storage, an analytics engine, a notification engine, Retrieval-Augmented Generation (RAG), knowledge indexing, an AI assistant, AI governance controls, AI analytics and monitoring, and translation support.

Qualifications and Requirements

The consultant must demonstrate:

• Minimum of 5 years’ experience in mobile application development.
• Minimum of 3 years’ experience deploying AI-enabled solutions and similar applications to be built.
• Proven experience delivering learning management platforms.
• Experience implementing multilingual solutions.
• Experience supporting offline-first applications.
• Experience deploying cloud-based enterprise systems.

Strong experience in:

• Flutter or React Native
• Android and iOS development
• Python, .NET, Node.js, Java or equivalent backend technologies
• AI/LLM integration
• Retrieval Augmented Generation (RAG)
• Vector databases
• Knowledge management systems
• RESTful APIs
• Cloud platforms (Azure, AWS or GCP)
• Data security and privacy compliance
• Analytics and dashboard development
• Health sector digital platforms
• Training and capacity building systems
• AI governance frameworks
• Multilingual African language solutions.

Functional Requirements

The system should support user registration and authentication through role-based access control, allowing access to features and functionalities based on assigned user roles.

Users should be able to log in using their phone number or unique ID and authenticate using a password or PIN.

The system may also optionally support OTP authentication and configurable security policies to enhance security and access management.

Privacy and Consent Management

The application must provide users with access to a privacy notice detailing the data collected, the purpose of data collection, the data retention period, data-sharing arrangements, and users’ rights.

The privacy notice must be available in English, Hausa, and Fulfulde. The system should record each user’s consent status, consent version, timestamp, and selected language for accountability and compliance purposes.

Where a user declines to provide consent, the system must prevent further access and redirect the user to the welcome page.

Multilingual Capability

The platform should provide:

The platform will support English, Hausa, and Fulfulde language selection during onboarding, allow users to change their preferred language at any time through the settings menu, provide translation management functionality, deliver AI responses and notifications in the user’s selected language, and maintain content version control across all supported languages to ensure consistency and accuracy.

Learning Management Features

The dashboard should display:

• Assigned learning path
• Learning progress
• Assessments
• Certificates
• Outstanding learning requirements

The system should support role-based learning pathways for: CDD, OIC, HFW, Supervisors and additional cadres as may be configured.

Learning paths should include: Mandatory modules, Optional modules, Assessments and Certification requirements.

Each training module should: Clearly define its objectives, outline the learning requirements and prerequisites, provide an estimated duration for completion, specify the minimum learning time required before a learner can progress or complete the course, and establish completion criteria that learners must meet to successfully finish the module and receive recognition or certification.

Learning Content Delivery:

• Features: Scroll, Read, Bookmark, Play, Pause and Replay. Requirements: Low-bandwidth optimization.
• Features: Play, Pause and Replay. Requirements: Optimized streaming, Download capability and Low-bandwidth versions.

Learning Integrity Controls

The system should implement: module-specific configuration of learning time requirements, track active learner engagement throughout the learning process, provide start, pause, and resume functionality for learning sessions, and enforce minimum learning time thresholds to ensure that learners cannot complete a module until the defined learning duration and engagement requirements have been met.

The system should present assessment questions throughout the learning experience to promote active participation, prevent passive or unattended course completion, capture and measure learner understanding, assess competency against defined learning outcomes, apply configurable pass marks to determine successful completion, and provide flexible, configurable retake options for learners who do not achieve the required score.

The platform should measure baseline knowledge and automatically score responses.

Where learners fail:

• Relevant content must be revisited
• Reattempt policies must be enforced
• Guessing behavior should be minimized.

Module completion should require:

• Minimum learning time met
• Content consumption completed
• Knowledge checks completed
• Assessment criteria achieved.

Certificate Management

• Automatically generate certificates
• Allow certificate download
• Store certificate records.

Recommended features:

• QR Code verification
• Certificate validation service.

Offline Learning Capability

Because deployment targets field personnel working in low-connectivity environments, offline capability is mandatory.

The application should enable learners to download approved learning content for offline use, access course materials without an internet connection, complete assessments while offline, and securely store assessment results locally on the device for synchronization with the central system once connectivity is restored.

Offline data will be encrypted to protect sensitive information, secured against unauthorized access through appropriate authentication and device-level safeguards, and managed in a manner that prevents duplicate assessment submissions by validating and synchronizing records before they are submitted to the central system.

The system should:

• Sync automatically
• Allow manual sync
• Resolve conflicts
• Display last synchronization date/time.

AI Requirements

The proposed solution must include advanced AI functionality powered by secure Retrieval-Augmented Generation (RAG).

The mobile application should provide: Conversational question-and-answer functionality, Learning support and Procedure guidance.

Requirements:

• Maximum question size configurable
• Grounded responses only
• No hallucinated content.

The solution will support voice-based questions and interactions in multiple languages, including English, Hausa, and Fulfulde, leveraging voice recognition capabilities to capture learner responses and provide audio-based assessment questions.

This functionality is particularly designed to enhance accessibility and usability for low-literacy users and remote field workers who may have limited reading and writing proficiency.

The system will generate both text and audio responses where appropriate, use clear and simple language to improve understanding, and consistently respect each user’s selected language preferences across all learning, assessment, and communication activities.

RAG Knowledge Base

The AI architecture should include only approved content, which should be indexed, including:

• ePlaybooks
• SOPs
• Training manuals
• FAQs
• Approved programme documentation

The AI should never use unrestricted internet content when answering learner questions.

The AI-powered learning assistant will provide document references, section references, and source citations for all guidance and responses, ensuring transparency, traceability, and user trust by clearly identifying the origin of information.

The AI will understand the learner’s current training module, deliver module-specific assistance, maintain contextual awareness throughout interactions, identify concepts that learners find challenging, simplify complex topics, and provide additional explanations tailored to the learner’s needs.

Furthermore, the AI will support multilingual interactions and deliver clarifications in the user’s selected language while ensuring that all responses remain aligned with and constrained by approved training materials, thereby preserving the integrity, accuracy, and governance of official learning content.

Where confidence levels are low, the system should:

• Escalate to Trainer
• Escalate to Supervisor
• Flag unresolved questions

The AI should not fabricate information.

AI Feedback System

Learners should be able to rate AI responses. Ratings should support:

• Analytics
• Continuous improvement
• Knowledge gap analysis

Administrators should be able to:

• Manage source documents
• Configure AI behavior
• Define restricted topics
• Configure escalation rules.

The platform should record:

• Questions submitted
• Responses generated
• Feedback received
• Escalations raised
• Unanswered questions while enforcing privacy controls and retention rules.

Administrators should be able to:

• Upload new content
• Approve content
• Publish content
• Archive content

The AI must index only approved content. Version control is mandatory.

Management Portal Requirements

The system should include a web-based management portal. Provide visibility into:

• Programme performance
• Completion rates
• Pass rates
• Retention rates
• Learning progress.

Capabilities should include:

• Create users
• Update users
• Deactivate users
• Assign roles.

Roles include:

• Learner
• Trainer
• Supervisor
• Administrator
• Management

The system should implement least-privilege access principles.

The management portal should provide:

• CDD performance analytics
• OIC performance analytics
• HFW performance analytics
• Supervisor performance analytics

Filters should include State, LGA, Facility and Role.

Track: Completed training, Pending training and Overdue training.

Monitor:

• Time spent
• Module progress
• Completion rates
• Learning trends

The solution should identify:

• Unusually fast completion
• Repeated suspicious behavior

and generate alerts.

Provide:

• State-level performance reporting
• LGA-level reporting
• Facility-level reporting

using map and chart visualizations.

Monitor:

• Scores
• Completion rates
• Failure rates

to identify weak content areas.

Content Management System (CMS)

Manage the following content types:

• Learning content
• Modules
• FAQs
• SOPs
• Documents
• AI knowledge sources

Capabilities should include:

• Create
• Edit
• Review
• Approve
• Publish
• Archive

Version control is mandatory.

Assessment Management

• Question creation
• Question editing
• Test configuration
• Approval workflows.

Question types may include:

• Multiple choice
• True/false
• Matching
• Scenario-based questions

Difficulty levels should be configurable.

Reporting Requirements

Reports in PDF, Excel and CSV. Filters should include: Date, State, LGA, Role, Module and Learning path. Support for scheduled automated reporting is required.

Notification Management

• Push notifications
• Reminders
• Announcements
• Assessment alerts
• Retention assessment reminders

Notifications should support English, Hausa and Fulfulde languages.

Security Requirements

• Secure authentication
• Data encryption at rest
• Data encryption in transit
• MFA for management users
• Secure APIs
• Session management
• Audit logging
• Role-based access control
• Secure offline data storage
• Backup and recovery controls.

Infrastructure, Monitoring and Disaster Recovery

The solution must provide:

• Uptime monitoring
• Error monitoring
• API monitoring
• Storage monitoring
• Scheduled backups
• Recovery testing
• Disaster recovery plan.

The developer should define:

• RPO (Recovery Point Objective)
• RTO (Recovery Time Objective).

Implementation Timeline

Implementation phases: requirements validation, UX/UI design, development, AI integration, testing, user acceptance testing, deployment, training and go-live support.

Indicative Timeline

The assignment should be implemented over an indicative period of Nine (9) weeks from the contract commencement date.

The selected provider should submit a detailed, dependency-aware implementation work plan covering requirements validation, solution architecture, UI/UX design, mobile and backend development, learning management functionality, offline synchronisation, AI integration, analytics, system integration, quality assurance, security testing, user acceptance testing, deployment, training and technical handover.

The schedule allows related workstreams to proceed in parallel where appropriate, while preserving adequate time for testing, remediation, approval, and handover.

Acceptance Criteria

• All functional requirements are implemented.
• Android and iOS applications are operational and running on the Google Play Store and the Apple App Store.
• AI assistant functions as specified.
• Offline learning is operational.
• Multilingual support is functional.
• Reporting and dashboards are operational.
• Security testing is passed.
• UAT sign-off is achieved.
• Documentation is submitted.
• Knowledge transfer is completed.

Proposal Submission Requirements

• At least five years of relevant mobile or enterprise application development experience.
• Demonstrated delivery of production learning, training, assessment, or workforce support platforms.
• Demonstrated experience with offline-first mobile applications and data synchronisation.
• Demonstrated experience integrating AI/LLM functionality; practical RAG implementation experience is required for the AI scope.
• Experience with multilingual systems and, preferably, Hausa and Fulfulde language technology or validation.
• Experience with cloud-hosted systems, APIs, data security, analytics and operational support.
• Experience in health or public sector digital systems is an advantage.
• Selected candidates will be required to work hybrid and travel to implementing states where required.

Proposed Consultant

The proposed consultant would identify named personnel, roles, availability and CVs for the project manager, mobile application lead, backend/API developer, AI/RAG specialist, UI/UX designer, QA/test lead and security/data protection expertise. One person may cover multiple roles where the provider demonstrates sufficient capacity and appropriate separation of duties.

Technical Proposal Requirements

• Understanding the assignment and proposed MVP/phased delivery approach.
• Technical architecture and proposed technology stack, including rationale and dependencies.
• Offline strategy, synchronization design, and testing approach.
• AI/RAG architecture, source governance, evaluation plan and cost controls.
• Security, privacy, data management, and disaster recovery approach.
• Work plan, milestones, team composition, risk register and support model.
• Examples/references for comparable solutions and a transparent financial proposal.

Intellectual Property, Data Ownership and Handover

• The provider must hand over complete, current source code for all custom-developed components, including mobile applications, backend, portal, integration services and AI/RAG orchestration/configuration.
• All code must be maintained in a repository accessible to the designated programme owner throughout development, not provided only at the end.
• The provider must disclose open-source and commercial dependencies, licence conditions, model/provider dependencies and any restrictions on transfer or continued use.
• The provider must hand over deployment scripts, infrastructure configuration, data schema, migration/backup procedures, API documentation and environment configuration, with secrets transferred through a secure process.
• Programme data must be returned or transferred in an agreed usable format at contract end; any copies held by the provider must be handled according to the agreed retention and deletion requirements.
• The provider must provide reasonable transition support to a successor team under the agreed contract terms.
• The provider would have completed knowledge transfer of the entire system architecture to a representative(s) of the programme.

How to apply: apply