Software Development Engineer – 3 (Frontend)

Locus.sh; Bengaluru; On-site; INR 2,500,000 - 4,200,000; Full time

Job summary

Locus is seeking a Senior Frontend Engineer to design and build scalable, high‑performance user interfaces for our enterprise logistics platform. You will own frontend architecture end‑to‑end and collaborate across Product, Design, Backend, QA, and DevOps teams to deliver reliable user experiences.

You will develop React applications with a focus on performance, maintainability, and scalability, build reusable UI components, and drive frontend architecture decisions to ensure long‑term quality

Qualifications

• 6–10 years of experience building modern web applications
• Strong expertise in JavaScript (ES6+) and ReactJS
• Experience with TypeScript
• Solid knowledge of HTML, CSS and responsive design
• Experience building scalable frontend architectures and component systems
• Experience with REST APIs and frontend state management
• Familiarity with testing frameworks such as Jest or Cypress
• Experience with design systems or UI component libraries (nice to have)
• Understanding of frontend performance optimization and accessibility

Responsibilities

• Architect and build scalable frontend systems for enterprise logistics platforms
• Develop high‑quality React applications with focus on performance, maintainability, and scalability
• Design and maintain reusable UI components and design systems
• Drive frontend architecture decisions and long‑term maintainability
• Collaborate with Product Managers, Designers, Backend engineers, and QA teams
• Optimize applications for performance, accessibility, responsiveness, and internationalization
• Implement secure frontend practices to prevent vulnerabilities (XSS/CSRF)
• Improve debugging, observability, and frontend monitoring for production systems
• Participate in design reviews, code reviews, and architecture discussions
• Mentor junior engineers and raise frontend engineering standards

Skills

JavaScript

ReactJS

TypeScript

HTML/CSS

Frontend architecture

Performance optimization

REST APIs

Testing (Jest/Cypress)

State management (Redux/React Query)

Tools

Jest

React Testing Library

Cypress

Webpack

Vite

Redux

React Query

Job description

Software Development Engineer – 3 (Frontend)

About Locus

Locus is a technology platform that uses machine learning and proprietary algorithms to automate complex supply chain decisions. We are building the world’s best Dispatch Management Platform for the final mile.

Our intelligent logistics solutions provide end-to-end visibility, enabling enterprises to enhance operational efficiency, reduce costs, improve customer experience, and minimize environmental impact.

Headquartered in Bangalore, India, Locus operates across North America, Europe, Southeast Asia, the Middle East, and the Indian Subcontinent.

Backed by leading investors including GIC (Singapore’s sovereign wealth fund), Qualcomm Ventures, Tiger Global, Falcon Edge, Blume Ventures, and pi Ventures, Locus has raised $80M+ across multiple funding rounds.

Our platform powers deliveries for global enterprises including IKEA, Unilever, Nestlé, Mondelez, UPS, BigBasket, Bluedart, Bukalapak, and the Tata Group.

Who We Are

We're Locus. We move the world's goods.

Our algorithms have optimized over a billion deliveries globally. We are building a composable, multi-modal transportation management system (TMS) designed for modern supply chains.

Backed by Ingka Group (IKEA’s parent company), our mission is to redefine logistics technology at enterprise scale.

We are not hiring to fill seats. We are hiring builders who build for other builders.

Role Overview

As a Senior Frontend Engineer, you will design and build scalable, high‑performance user interfaces for Locus’ enterprise logistics platform. You will work on complex systems used by global enterprises to manage large-scale supply chain operations.

You will own frontend architecture end‑to‑end, drive engineering best practices, and collaborate closely with Product, Design, Backend, QA, and DevOps teams to deliver reliable and performant user experiences.

Problems You’ll Work On

• Building highly interactive dashboards used by enterprises to manage thousands of deliveries in real time
• Designing scalable frontend systems capable of visualizing large-scale logistics and map-based interfaces
• Improving performance for complex enterprise workflows handling large datasets and real-time updates
• Creating reusable design systems and UI frameworks across multiple products
• Ensuring seamless user experiences across global markets, languages, and devices

What You’ll Do

• Architect and build scalable frontend systems for enterprise logistics platforms
• Develop high‑quality React applications with strong focus on performance, maintainability, and scalability
• Design and maintain reusable UI components and design systems
• Drive frontend architecture decisions and ensure long‑term maintainability
• Collaborate with Product Managers, Designers, Backend engineers, and QA teams
• Optimize applications for performance, accessibility, responsiveness, and internationalization
• Implement secure frontend practices preventing vulnerabilities such as XSS and CSRF
• Improve debugging, observability, and frontend monitoring for production systems
• Participate in design reviews, code reviews, and architecture discussions
• Mentor junior engineers and help raise frontend engineering standards

What Success Looks Like in 6 Months

• You have shipped multiple frontend features used by enterprise logistics teams globally
• You have improved performance and scalability of core product workflows
• You actively contribute to frontend architecture discussions and engineering standards
• You mentor engineers and support best practices within the team
• You contribute reusable UI components that improve developer productivity

Our Frontend Stack

• ReactJS + TypeScript
• Modern JavaScript (ES6+)
• State Management: Redux / React Query
• Testing: Jest, React Testing Library, Cypress
• Build Tools: Webpack / Vite
• REST APIs and modern data-fetching patterns
• UI libraries and scalable design systems

What We’re Looking For

• 6-10 years of experience building modern web applications
• Strong expertise in JavaScript (ES6+) and ReactJS
• Experience building applications with TypeScript
• Strong knowledge of HTML, CSS, and responsive design principles
• Experience building scalable frontend architectures and component systems
• Experience with state management solutions
• Strong understanding of frontend performance optimization
• Experience working with REST APIs
• Familiarity with testing frameworks such as Jest, Cypress, or React Testing Library
• Strong understanding of software design and architecture principles

Nice to Have

• Experience building design systems or UI component libraries
• Experience with micro‑frontend architectures
• Familiarity with CI/CD pipelines and DevOps practices
• Experience building enterprise SaaS products
• Experience with data visualization or complex dashboards

Life at Locus

At Locus, every team member is an owner and a leader. Engineers are empowered with autonomy, ownership, and the opportunity to build systems that impact global logistics networks.

We value engineers who take ownership, challenge assumptions, and build systems that scale beyond their creators.