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Top 3 Reasons To Join Us AI-first company shaping the future of fitness Join a passionate global team across VN, US, & UK Collaborative team valuing joy & creativity The Job

Everfit is an AI-powered fitness coaching platform serving coaches and users globally. Our product combines training, business management, payments, and AI-driven features into one ecosystem.

We’re hiring Middle-Senior Backend Engineers to work across multiple business lines - including Core Platform, Payments & Monetization, AI-powered services, and Marketplace systems.

If you’re a strong backend engineer who wants to take ownership, work on revenue-critical systems, and grow toward a Lead Engineer role while collaborating with an international team, this role is for you.

Your Impact

At Everfit, backend engineers don’t just “implement tickets.” You design systems that power a global product used by coaches and clients every day.

You will:

Design, build, and scale backend services using Node.js that directly impact product growth and revenue
Architect and evolve our microservices-based platform as we scale globally
Develop clean, well-structured RESTful APIs powering web and mobile applications
Take ownership of backend systems across domains such as:
- Core product infrastructure
- Subscription, billing, and payout flows
- AI-powered backend services
- Marketplace & partner ecosystems
Make thoughtful architecture decisions that balance scalability, performance, and long-term maintainability
Design reliable systems where data integrity and correctness truly matter
Operate what you build — monitoring, debugging, and continuously improving production systems
Act as a technical partner to Product, Finance, and AI teams — shaping solutions, not just executing them
Raise the engineering bar through code reviews, system design discussions, and mentorship
Own projects end-to-end — from idea to production to optimization

We value engineers who take responsibility, think long-term, and care deeply about quality.

Your Skills and Experience

You’re not just experienced - you’re thoughtful about how systems should be built.

4+ years of backend engineering experience in real production environments
Strong proficiency in Node.js (ES6+), RESTful APIs, and microservices architecture
Solid experience with PostgreSQL, Redis, and scalable data modeling
Strong understanding of distributed systems, performance optimization, and system design trade-offs
Comfortable debugging live systems and handling real production traffic
Confident collaborating in Agile/Scrum environments
Able to communicate clearly in English within an international team
Motivated to grow into a Lead-level engineer and take on greater technical ownership over time

Strong Plus (Experience in One or More of These Areas)

We’re hiring backend talent across Core Platform, Payments & Monetization, AI services, and Marketplace systems. Experience in one or more of these areas is a strong advantage:

Designing subscription, billing, or payout systems with high data consistency
Integrating payment providers (e.g., Stripe, Stripe Radar)
Building systems for multi-sided platforms (SaaS, marketplace, partner ecosystems)
Working on AI-powered or data-intensive backend services
Event-driven architecture (Kafka, SQS) or high-throughput systems
Scaling backend systems serving global users

Don’t worry if you don’t check every box.

If you’re a strong backend engineer with solid system design fundamentals and an ownership mindset, we care more about your engineering depth than specific domain exposure. We’ll align you with the business area where you can make the biggest impact.

Why You'll Love Working Here

Compensation & Benefits:

Full social insurance coverage and premium healthcare benefits.
Competitive salary with 13th-month pay and performance bonus.
Paid leave — vacation, sick leave, and maternity leave

Build Your Career with Impact:

Be part of a mission-driven company that’s transforming human potential.
Empower over 200,000+ coaches in more than 200 countries - including Olympic athletes, military trainers, rehab specialists, and celebrity coaches.
Make a global impact while building a meaningful, purpose-driven career.
Continuous training, mentoring.
1-2 performance reviews annually.

Work Environment:

English-speaking, international environment promoting open communication and collaboration.
Work alongside world-class talent from companies like Apple, Meta, Uber, Patreon, and Nike, united by a shared passion for impact and excellence.
International team for global career growth.
State-of-the-art equipment provided.
Beautiful working environment near Danang's city center (Dragon Bridge) and Hanoi office.

Health & Wellness:

PVI health insurance program and annual health check-ups.
Active sports clubs (football, badminton, pickleball) and company retreats.
A modern pantry designed for relaxation and social connection.
Monthly wellness and learning workshops to recharge and grow.

Benefits