Posted at: 18 February

Mid-Senior Backend Developer (Typescript, Node) - Full-time - EU

Company

Arc.dev

Arc.dev is a freelance platform that only connects developers who pass their vetting process. NOTE: Jobs posted by Arc.dev are freelance opportunities provided by their clients, and you will likely communicate with Arc.dev when applying for a job.

Remote Hiring Policy:

Arc.dev is a fully remote freelance platform.

Job Type

Contract

Allowed Applicant Locations

United Kingdom, Worldwide

Apply Here

Job Description

We're looking for a Lead/Sr, Backend Developer!
Are you an experienced backend engineer looking to take full ownership of building and scaling a global product? We’re looking for a Lead Backend Developer who is self-driven, passionate about AI automation, and eager to take charge of our backend development. This is a hands-on leadership role where you'll be instrumental in shaping the product and driving technical decisions.

About the Role

As our Backend Developer, you will take full responsibility for architecting, developing, and optimizing our backend systems. You will work closely with the founding team to ensure scalability, performance, and reliability while integrating AI automation into our workflows.

Responsibilities

  • Own the backend development – from system architecture to deployment and maintenance
  • Design, build, and optimize APIs to support our frontend and external integrations
  • Implement AI-driven automation to enhance product functionality
  • Ensure performance and scalability by optimizing database queries and backend processes
  • Work collaboratively with the frontend team to build seamless user experiences
  • Monitor, troubleshoot, and improve reliability using modern observability tools
  • Lead technical decisions and establish best practices for the backend infrastructure
  • Stay ahead of trends in AI automation, backend frameworks, and system architecture

Requirements

  • 4-7 years of experience in backend development, preferably in a leadership role

Proficiency in our tech stack:

  • Backend: TypeScript, Node.js, Fastify
  • Frontend: TypeScript, React, Remix, Next.js, Tailwind CSS, shadcn/ui
  • Database: PostgreSQL (Supabase)
  • Background Tasks: Trigger.dev
  • Deployment & Hosting: Vercel, Fly.io, Docker
  • Monitoring & Error Tracking: Sentry

✔️ Experience integrating AI automation into products
✔️ Strong understanding of API design and database optimization
✔️ Ability to take full ownership of backend development and lead technical initiatives
✔️ Self-motivated and able to work independently while collaborating with a team

Nice to Have

  • Previous experience working in fast-paced startups
  • Knowledge of DevOps practices and CI/CD pipelines

What We Offer

  • A chance to lead and build something impactful – your work will directly shape the product
  • Flexibility – remote or hybrid work options
  • Autonomy – the freedom to implement your ideas and make key technical decisions
  • Innovative environment – work on cutting-edge AI automation and modern tech stacks

We’re hiring on a rolling basis, so don’t wait – send your application now!
Got a GitHub, portfolio, or examples of your past work? We’d love to see them!
Looking forward to hearing from you! 🚀

Apply Here