Full Stack Engineer

Gains.com; United States; Remote; USD 120,000 - 180,000; Full time

Benefits offered by this job

Comprehensive medical, dental & vision

Stock options

Unlimited vacation & sick days

Brand new MacBook Pro

Remote-first with flexible hours

Competitive salary

High ownership, low bureaucracy

Direct access to leadership

Job summary

Gains.com is hiring a Full Stack Engineer to own features across the web, mobile, and backend on a small, AI-native engineering team. You’ll ship end-to-end, with tests and monitoring, and have meaningful input on architecture, prioritization, and tradeoffs.

You’ll collaborate with design and product, design scalable data schemas, and improve the developer experience in a remote-first environment with flexible hours and a competitive salary in the United States.

Qualifications

• 5+ years of professional full-stack experience.
• Advocate for CI/CD automation, high test coverage, and scalable design.
• Experience designing and querying relational databases at scale.
• Working knowledge of cloud providers (GCP preferred) and IAM, logging, tracing.
• Strong testing discipline: unit, integration, and end-to-end tests.
• Strong product sense: ability to weigh trade-offs and ship minimal viable changes.

Responsibilities

• Build features end-to-end across Angular web app, Flutter mobile app, and Node.js backend.
• Design schemas, write queries, and ensure transactional correctness.
• Ship to production multiple times weekly behind CI/CD with tests and rollback paths.
• Review teammates' code with care; expect the same in return.
• Collaborate with design and product to scope work before scoping up.
• Improve the monorepo tooling, test harness, deploy pipeline, and observability.
• Leverage AI coding tools as part of daily workflow.

Skills

Full stack development

CI/CD automation

Test discipline

Relational databases

Cloud knowledge

Code reviews

End-to-end testing

Angular

Flutter

Node.js

TypeScript

Tools

Angular

Flutter

Node.js

Job description

Full Stack Engineer

About Gains.com

Gains.com is a fast-growing U.S.-based gaming and entertainment platform built with a premium product mindset. We care deeply about trust, speed, and user experience, and we move quickly as a small, highly aligned team.

This role sits on a small engineering team shipping the product end-to-end: web, mobile, backend, and the operational tooling that runs the business behind the scenes. You’ll work directly with the CEO, CTO, design lead, and the rest of engineering.

The Role

We’re hiring a Full Stack Engineer who can take a problem from ambiguous request to shipped, tested, and monitored in production. You’ll own features across the stack and have meaningful input on architecture, prioritization, and tradeoffs.

What you’ll be doing

• Build features end-to-end across the Angular web app, Flutter mobile app, and Node.js backend
• Design schemas, write queries, and reason about transactional correctness in a system where money is the source of truth
• Ship to production multiple times a week behind CI/CD with strong test coverage and clear rollback paths
• Review teammates’ code with care; expect the same in return
• Partner with design and product to scope down before scoping up
• Improve the developer experience around the monorepo, test harness, deploy pipeline, and observability
• Use AI coding tools as part of your daily workflow. We’re an AI-native team and expect leverage, not just typing speed

Requirements

• 5+ years of professional full-stack experience
• An advocate for strong engineering principles including CI/CD automation, high test coverage, thorough code reviews, and scalable system design.
• Experience designing and querying relational databases at scale; comfortable reasoning about schema design, indexes, transactions, and query performance
• Working knowledge of at least one major cloud provider such as GCP (preferred), AWS, or Azure — provisioning services, IAM, secrets, logging, and tracing
• Strong testing discipline — unit, integration, and ideally end-to-end tests
• Strong product sense — willing to weigh trade-offs, push back on scope, and ship the smallest thing that actually solves the problem

Bonus Points

• Solid Angular web experience; comfortable with standalone components, signals, RxJS, and reactive forms
• Flutter / Dart for mobile native
• Node.js backend experience, including REST APIs, middleware, sessions, and rate limiting
• Firebase (Auth, Cloud Functions)
• Git + PR-based collaboration, code review etiquette, clear commit hygiene
• Comfortable in a monorepo workflow (i.e. Nx) and shipping changes that span multiple packages
• Strong TypeScript / ESM fluency
• Comfortable working with AI coding tools (Claude Code, Cursor, Copilot) as a daily-driver multiplier

Perks

• Comprehensive medical, dental and vision insurance with employer contribution for yourself and your dependents
• Stock options
• Unlimited vacation and sick days
• Brand new MacBook Pro
• Remote-first work environment with flexible working hours
• Competitive salary
• High ownership, low bureaucracy
• Direct access to leadership