Tech Lead-Platform Architecture | MERN Stack + AWS

Tech Lead – Platform Architecture | MERN Stack + AWS

Location:

Experience:

About Evallo

Evallo is redefining education management through a comprehensive SaaS platform designed for tutors and tutoring businesses. Our solution streamlines essential operations—from advanced CRM and profile management to standardized test prep, automatic grading, and real-time dashboards. By enabling educators to focus on what they do best—teaching—we’re pushing the boundaries of ed-tech and delivering the future of efficient, scalable learning systems.

Why This Role Matters

Tech Lead

You will be instrumental in translating high-level product vision into a scalable, maintainable technical foundation. Your leadership will ensure we remain stable with 5,000+ concurrent users and cost-efficient at 100,000+ total users—all while enabling rapid product evolution.

Key ResponsibilitiesSolution Architecture & Technical Design

• Analyze and document the current platform architecture; identify bottlenecks and produce a formal Architecture Gap Report.
• Translate product epics into modular service contracts, data flow diagrams, and scalable system components.
• Decide and implement optimal architectural patterns (monolith vs. microservices, REST vs. event-driven, DB index vs. cache).
• Drive scalable multi-tenant architecture for user/workspace models and complex permission systems.

Platform Standards & DevOps

• Define and enforce platform-wide standards, including naming conventions, code formatting rules, ADRs, and review checklists.
• Collaborate with DevOps to design high-availability infrastructure and auto-scaling environments on AWS (EC2, S3, IAM, CloudFront, Cognito).
• Own CI/CD pipelines and schema migration strategies with an emphasis on zero-downtime deployments and one-click rollbacks.
• Monitor infrastructure spend and optimize for performance and cost; guide usage of serverless functions, queues, and caching layers.

Observability & Performance

• Lead the implementation of observability practices using Datadog, New Relic, Sentry, or OpenTelemetry.
• Ensure platform metrics are monitored with < 10% infrastructure cost waste and < 5 false positive alerts per month.
• Design and execute load-testing scenarios replicating high-concurrency use cases.

Team Mentorship & Leadership

• Mentor junior and mid-level engineers through code reviews, architecture clinics, and pair programming sessions.
• Facilitate cross-team architecture reviews and ensure no major feature ships without architectural alignment.
• Balance hands-on development (80%) with leadership duties (20%)—reviewing designs, resolving technical debates, and maintaining engineering discipline.

Requirements

• 5+ years of software engineering experience, including 2+ years in an architecture or senior technical leadership role.
• Strong full-stack expertise with

  MERN stack

  (MongoDB, Express.js, React.js, Node.js).
• Demonstrated success in designing

  multi-tenant architectures

  and scalable systems handling 1,000+ requests per minute.
• Advanced proficiency in

  AWS

  , including EC2, Lambda, RDS, IAM, CloudFront, and Cognito.
• Familiarity with CI/CD tools (GitHub Actions, Jenkins, Bitbucket Pipelines).
• Experience working with observability stacks like Datadog, New Relic, or OpenTelemetry.
• Excellent written and verbal communication skills; capable of summarizing trade-offs clearly for both technical and non-technical stakeholders.

Preferred Qualifications

• Prior experience with education platforms or SaaS tools for service businesses.
• Experience with event brokers such as Kafka, NATS, or RabbitMQ.
• Deep knowledge of schema design, role-based access control, and data migration in NoSQL environments.

What We’re Looking For

• A leader with a

  builder’s mindset

  —you thrive in early-stage environments and care deeply about long-term scalability.
• Someone who brings both

  hands-on technical depth

  and a

  strategic architectural perspective

  .
• An engineer who leads with clarity, communicates trade-offs effectively, and takes full ownership of outcomes.

hr@evallo.ai