RemoteLeaf Logo
Log in Sign up

Senior Full Stack Engineer

1 month, 3 weeks ago
Europe, North America, Latin America
Full-time
Senior
Full-stack Engineer
Software Development
Apache Spark AWS Cypress Design Systems Django GCP GraphQL JavaScript Jest Kafka Kubernetes PostgreSQL Python React Redis REST API SQL TypeScript
Apply Now
HumanSignal

HumanSignal

HumanSignal is a data labeling platform for machine learning and AI that offers flexibility, security, and scalability. It supports all data types, formats, ML backends, and storage providers, enabling users to prepare training data, fine-tune models, ...

Internet Software & Services
1-10
$25M raised
View All Jobs 10

Description

  • Build full-stack features across client and server: implement user-facing UI, design APIs, evolve data models, and implement background jobs.
  • Own outcomes end-to-end: refine scope, propose trade-offs, and deliver incremental value quickly.
  • Design clean API contracts and manage schema evolution and migrations.
  • Improve performance and reliability through query tuning, caching, and job orchestration.
  • Partner with Product and Design from discovery to delivery: clarify user jobs, prototype, and write lightweight RFCs/PRDs to shape scope and milestones.
  • Keep UIs accessible, responsive, and resilient with solid error-handling and failure-mode UX.
  • Raise engineering standards by driving testing strategy, code quality, observability hooks, and resilience patterns.
  • Partner with Support to investigate production issues, reduce UX papercuts, and convert learnings into fixes.
  • Engage with the open-source community (issues, discussions) to understand real-world needs and improve developer experience.
  • Participate in architecture discussions and code reviews, mentor teammates, and improve patterns across the codebase.

Requirements

  • Senior-level experience shipping production full-stack features combining frontend, backend, and SQL-backed systems.
  • Proven product sense with experience making scope and trade-off decisions and iterating based on real-world usage and feedback.
  • Experience with modern frontend tooling and state-management patterns (examples given: Vite/Webpack, Jest/Cypress).
  • Backend depth in REST API design, relational data modeling, migrations, performance tuning, and background job patterns.
  • Excellent written and verbal communication at a Senior IC level, including writing RFCs/PRDs and giving actionable code reviews.
  • Familiarity with testing strategies, observability, and resilience engineering patterns.
  • Nice to have: GraphQL familiarity; Kafka/queues/streaming; Spark/BigQuery; auth/RBAC; multi-tenant SaaS; design-system experience.
  • Comfort working in a collaborative, product-oriented engineering process (trunk-based development, feature flags, small reviewable PRs).
  • Experience working with large-scale data or AI-focused products is a plus (Label Studio / dataset pipelines context).

Benefits

  • Base cash compensation range: $140,000 to $200,000 USD (final offer depends on experience and other factors).
  • Hiring across North and South America and Europe with pay based on regional market rates (remote/regionally distributed roles).
  • Opportunity to work on a widely adopted open-source product (Label Studio) and engage directly with its community.
  • Rapid company growth and evolving roles, offering strong opportunities for impact and career growth.
  • Structured six-week 'Build and Ship' cycle with a two-week 'Cooldown' to address technical debt and balance workload.
  • Engineering-focused culture and best practices: trunk-based development, feature flags, strong code reviews, pragmatic testing, and close collaboration with Product/Design/Support.
  • Work with a modern data-and-AI-focused technology stack and collaborate with leading AI teams.

Interested in this position?

Apply directly on the company website

Apply Now

Similar Roles

CookUnity

Senior Full Stack Engineer, Kitchen Tech Squad

CookUnity 251-1K Hotels, Restaurants & Leisure

CookUnity is seeking a Senior Full Stack Engineer for its Chef Tech team to help build the tools, analytics, and operational systems that support chefs on its food platform.

Latin America Full-time Senior Full-stack Engineer
Agile AWS CI/CD Datadog Docker GraphQL JavaScript Jest Kotlin Kubernetes MySQL NestJS Next.js Node.js Playwright PostgreSQL React React Native Redis REST API Snowflake Terraform TypeScript
1 day, 9 hours ago
Coinbase

Software Engineer - Full Stack (EAA - Compliance)

Coinbase 1K-5K Capital Markets

Coinbase is hiring a Software Engineer for its EAA Compliance CXAE team to build customer experience applications that improve customer service and compliance workflows through full-stack development and third-party integrations.

United States Full-time Mid Level Full-stack Engineer
$148k-$174k
AWS Buildkite Go GraphQL gRPC JavaScript Kafka Kubernetes Load Balancing MongoDB Python React Ruby Snowflake SQL Terraform TypeScript
1 day, 10 hours ago
Media.Monks

Fullstack Engineer

Media.Monks 5K-10K Media

Monks is hiring a Senior Full Stack Engineer to build high-impact features across the stack for an established or newly formed team, reporting to an Engineering Manager.

Brazil Full-time Senior Full-stack Engineer
Docker Helm HIPAA Kubernetes NestJS PostgreSQL React Terraform TypeScript
1 day, 10 hours ago
Fundraise Up

Fullstack Developer

Fundraise Up 51-250 Capital Markets

Fundraise Up is hiring a Senior Fullstack Developer to build and scale core donation products and internal tools for a global nonprofit fundraising platform.

Serbia Full-time Senior Full-stack Engineer
$6k-$8k
Bull CI/CD ClickHouse Docker Elasticsearch JavaScript Kafka Koa MongoDB NestJS Node.js React Redis TypeScript Vue.js
1 day, 10 hours ago

You're on a roll! Sign up now to keep applying.

Sign Up

Already have an account? Log in

Used by 14,729+ remote workers