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Experience: 13+ yrs

Location: Bengaluru, Karnataka, India

Job Type: Full-time

We are looking for an accomplished Principal Backend Engineer with deep expertise in microservices, scalable backend architecture, low-latency systems, and high-performance application development. This role is suited for a senior technology professional who can combine hands-on engineering with architectural ownership and technical leadership.

The ideal candidate will have strong expertise in Python, Node.js and/or Golang, MongoDB, distributed systems, algorithms, solution design, and scalable application architecture, with the ability to make critical technical decisions and guide engineering teams toward robust solutions.

Requirements

Key Responsibilities

- Design and implement low-latency, highly available, scalable, and high-performance backend applications.
- Own the architecture and technical direction of assigned modules and services.
- Design, develop, and evolve microservices-based architectures for large-scale applications.
- Write clean, reusable, testable, maintainable, and efficient production-grade code.
- Develop backend services using Python, Node.js, Golang, or similar modern technologies.
- Design and implement APIs and server-side application logic to support user-facing products.
- Collaborate with frontend developers to integrate user-facing components with robust server-side services.
- Design and integrate MongoDB and other data-storage solutions based on application requirements.
- Integrate multiple data sources, databases, external services,



and internal systems into scalable backend architectures.
- Evaluate system design choices with a focus on performance, scalability, reliability, maintainability, and cost.
- Apply strong algorithms, data structures, and problem-solving approaches to complex engineering challenges.
- Make timely and pragmatic technical decisions while balancing product requirements and engineering constraints.
- Define and communicate technical approaches, architecture decisions, design principles, and implementation strategies to relevant stakeholders.
- Implement appropriate security, data-protection, authentication, authorisation, and compliance practices.
- Ensure backend systems follow scalable application and software-design principles.
- Identify performance bottlenecks and drive optimisation across application and infrastructure layers.
- Establish coding standards, testing practices, design patterns, and engineering best practices.
- Conduct technical reviews and contribute to architecture discussions, code reviews, and engineering standards.
- Mentor senior and junior engineers and provide technical guidance on complex backend problems.
- Continuously evaluate technologies and approaches that can improve system performance, reliability, and developer productivity.

What Makes You a Great Fit





- 13+ years of experience in backend software engineering, distributed systems, microservices, or large-scale application development.
- Strong hands-on experience designing and implementing microservices architectures.
- Deep expertise in Python, Node.js, and/or Golang.
- Robust experience with MongoDB and NoSQL database technologies.
- Excellent understanding of algorithms, data structures, solution architecture, and complex problem-solving.
- Proven experience designing scalable, highly available, low-latency, and performance-sensitive applications.
- Strong understanding of distributed systems, API design, service integration, and backend architecture.
- Experience integrating multiple data sources, databases, APIs, and external systems.
- Strong knowledge of fundamental software and system-design principles for scalable applications.
- Experience with server-side templating and CSS preprocessors is an advantage.
- Strong understanding of application security, data protection, accessibility, and security compliance.
- Strong coding standards with a focus on reusable, testable, maintainable, and efficient software.
- Proven ability to take architectural ownership of modules and drive solutions from design through production.
- Excellent technical communication skills with the ability to articulate complex approaches to engineering and business stakeholders.
- Strong leadership, decision-making, mentoring, and cross-functional collaboration skills.
- Ability to balance hands-on engineering with architecture, technical strategy, and team-level influence.

📌 Senior Lead Engineer Backend (India)
🏢 Weekday AI
📍 India