React Native & Go (Golang) Developer

React Native & Go (Golang) Developer

Department/Function: Technology Reports To: CEO Employment Type: Contract (Fixed Term) Work Location: Lagos – Island Work Mode: Remote (Work from Home) Salary Range: ₦400,000 – ₦500,000 monthly (Gross) Industry/Sector: Information Technology & Telecommunications Years of Experience Required: 6–10 years (Senior) Minimum Education Level: HND / BSc / BA

Role Overview

We are seeking a highly skilled and experienced React Native & Go (Golang) Developer to design, develop, and maintain scalable, high-performance mobile and backend solutions. The ideal candidate will be autonomous, detail-oriented, and capable of managing the full lifecycle of mobile and backend applications, from architecture and development to deployment and production support.

This role involves working closely with cross-functional teams, including backend and product engineers, to deliver production-ready solutions that meet business and technical requirements.

Key Responsibilities

• React Native Developer (Hybrid Mobile)

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Design, develop, and maintain production-ready mobile applications using React Native .

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Build scalable, reusable, and high-performance mobile features.

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Integrate mobile applications with backend APIs and services.

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Optimize applications for performance, reliability, and scalability across iOS and Android .

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Manage the full mobile app lifecycle, including development, testing, deployment, and store releases.

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Prepare and submit builds to the Apple App Store and Google Play Store , ensuring compliance with platform guidelines.

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Debug, troubleshoot, and resolve production issues across multiple devices and OS versions.

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Participate in code reviews and maintain high standards for code quality and documentation.

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Continuously improve development processes, tooling, and app architecture.

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Stay current with React Native updates, mobile development best practices, and emerging technologies.

• Go (Golang) Backend Developer

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Design and implement user management systems (users, roles, permissions).

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Build role-based access control and implement authentication and authorization flows.

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Design, develop, and maintain production-grade backend services using Go .

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Architect distributed systems with a focus on scalability, reliability, and performance.

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Maintain microservices and well-defined service boundaries.

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Design, implement, and maintain REST and/or GraphQL APIs .

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Collaborate with mobile engineers to support product features.

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Own services through development, deployment, monitoring, and optimization.

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Implement observability, logging, and alerting for production systems.

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Design database schemas and manage migrations.

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Debug and resolve production incidents.

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Contribute to code reviews, technical documentation, and architecture discussions.

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Continuously improve system design, tooling, and operational practices.

Must-Have Skills

React Native & Mobile Development

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Strong hands-on experience with React Native .

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Proven track record of building and maintaining production mobile apps.

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At least one live app published on both the Google Play Store and Apple App Store .

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Solid understanding of mobile performance optimization, rendering efficiency, and memory management.

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Experience with API-driven architectures , RESTful APIs, async data handling, and error states.

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Familiarity with app release cycles, versioning, and store submission processes.

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Strong collaboration skills and ability to work independently.

Go (Golang) Backend Development

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Proven experience building and operating production-grade distributed systems.

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Hands-on experience with microservices architecture.

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Knowledge of authentication, authorization, and RBAC patterns.

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Experience designing and maintaining RESTful or GraphQL APIs.

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Strong experience with relational databases, preferably PostgreSQL .

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Experience with containerized environments ( Docker ) and production systems.

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Solid understanding of concurrency, networking, and system performance.

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Strong debugging and problem-solving skills.

Nice-to-Have Skills

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Startup or fast-paced environment experience.

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Advanced mobile development (offline-first, complex state management).

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Automated testing and CI/CD pipelines for mobile apps.

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Scalable mobile app architecture and UX knowledge.

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Kubernetes, infrastructure as code (Terraform/CloudFormation), and event-driven architectures.

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Multi-role or multi-tenant systems, caching layers, GraphQL schema design, and security best practices.

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Experience with high-scale, high-availability systems and technical leadership.

Required Software/Tools

React Native

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React Native, JavaScript (ES6+), Node.js, npm/Yarn

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Xcode (iOS) and Android Studio (Android)

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iOS and Android SDKs

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React Native CLI, RESTful APIs, HTTP libraries (Axios/Fetch)

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GitHub, issue tracking/project management tools (Jira, Linear)

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Testing: Jest or equivalent, debugging tools, simulators/emulators

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Build & release: App Store Connect, Google Play Console

Go (Golang)

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GitHub, GitHub Actions, PostgreSQL, Docker, Kubernetes, Swagger

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Issue tracking/project management tools

Ideal Candidate Personality

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Highly autonomous and self-motivated

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Problem solver with strong analytical skills

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Detail-oriented and reliable

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Strong sense of ownership and accountability

How to Apply

Interested candidates should submit their CV and a brief cover note highlighting relevant mobile and backend development experience to: hiring@mysigma.io

Subject Line: React Native & Go (Golang) Developer – Lagos