Senior Full Stack Engineer

Serhant

$120K — $150K *
US-AnywhereRemote in United States
Information Technology
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of software engineering experience with both frontend and backend development.
  • Fluency in multiple frameworks and rapid adaptability to new technologies such as Next.js, SvelteKit, and Hono.
  • Strong proficiency in TypeScript as the primary programming language.
  • Experience with various frontend frameworks like React and Svelte without a preference for one.
  • In-depth knowledge of Postgres, familiar with indexing, query optimization, and schema design.
  • Proficiency in event-driven architectures and lightweight API frameworks like Hono.
  • Experience using AI coding assistants effectively in daily workflows.

Responsibilities

  • Build and deliver features across both frontend and backend systems.
  • Transition smoothly between frameworks based on project needs.
  • Design database schemas and optimize queries using Postgres as the main data layer.
  • Develop in TypeScript, utilizing it across the stack from frontend to backend.
  • Contribute to Python services when needed.
  • Produce detailed technical specifications outlining APIs, data models, and UI behavior ahead of coding.
  • Leverage AI tools to enhance coding efficiency and output quality.

Benefits

  • Flexible working environment that encourages exploration of new technologies.
  • Opportunities for professional development and contribution to internal tooling.
  • Collaborative team culture with input in architecture discussions and technical planning.
Full Job Description
About the Role

We're looking for a Senior Full-Stack Engineer who thrives across the stack and refuses to be boxed in. You move fluidly between frameworks - Next.js to Hono APIs to SvelteKit to Postgres - without friction or hand-holding. AI tools are part of your daily toolkit, and you write specs that make implementation straightforward.

Our Stack
  • Web Frameworks: SvelteKit, Next.js
  • APIs: Hono
  • Mobile: Expo (React Native)
  • Primary Database: Postgres
  • Analytics Database: ClickHouse
  • Languages: TypeScript, Python
  • Infrastructure: Azure, event-driven architecture


Responsibilities
  • Build and ship features across frontend and backend systems
  • Move seamlessly between Next.js, SvelteKit, and Hono depending on what the problem requires
  • Work with Postgres as the primary data layer, designing schemas and optimizing queries
  • Write TypeScript across the stack - React/Svelte on the frontend, Hono/Node.js services on the backend
  • Contribute Python services where appropriate
  • Write technical specifications that define APIs, data models, and UI behavior before coding
  • Use AI-assisted development tools to increase velocity and code quality
  • Collaborate with product and design to translate requirements into working software
  • Participate in code reviews, architecture discussions, and technical planning
  • Improve developer experience through tooling, documentation, and automation
  • *The company reserves the right to add or change duties at any time.


Qualifications
  • 5+ years of professional software engineering experience across frontend and backend
  • Framework fluency - you pick up new frameworks quickly and don't have strong allegiances; moving from Next.js to SvelteKit to Hono feels natural, not stressful
  • Strong TypeScript proficiency - it's your primary language
  • Experience with multiple frontend frameworks (React, Svelte, Vue - you're not married to one)
  • Familiarity with lightweight API frameworks like Hono, Express, or Fastify
  • Deep Postgres experience - you understand indexing, query optimization, and schema design
  • Familiarity with event-driven architectures and message queues
  • Heavy daily use of AI coding assistants - you've developed workflows that make you faster
  • Hands-on experience with frontier LLMs beyond surface-level prompting
  • A spec-driven approach - you define what you're building with precision before you start
  • Experience with Expo/React Native
  • Background with GraphQL, serverless architectures, or ClickHouse
  • Background in real estate, marketplaces, or consumer products
  • Contributions to internal tooling or developer productivity


Skills
  • Relentlessly curious - you dig into new tools and technologies before they have comprehensive documentation
  • High agency - you don't wait for permission or detailed instructions; you figure things out and drive forward
  • Comfortable with ambiguity - you can pick up bleeding-edge LLM tools and make them productive without hand-holding
  • Framework-agnostic - you see frameworks as tools, not identities; learning a new one is Tuesday, not a career change
  • Self-directed - you identify what needs to be done and do it

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