Full-Stack Developer
Worldwide
DearHiringManager.io is one of Karhuno Group’s portfolio projects. The product helps job seekers find the real person behind a job opening. A user pastes a job post URL, and the system identifies the likely hiring manager, their work email, and LinkedIn profile. We are looking for a full-stack developer to help us improve and grow the product. What you will work on: * Build and improve the web app * Work with job post parsing and company data * Improve the logic for finding likely hiring managers * Integrate contact enrichment APIs * Work with AI prompts and structured outputs * Improve user flows, payment logic, credits, and saved results * Fix bugs and improve product reliability What we are looking for: * Experience with JavaScript or TypeScript * Experience with React, Next.js, or similar tools * Ability to build backend APIs and work with databases * Experience with third-party API integrations * Basic understanding of SaaS products, auth, payments, and user limits * Interest in AI-powered products and automation * Ability to work independently and ship fast Nice to have: * Experience with OpenAI or other AI APIs * Experience with Supabase, Vercel, Stripe, or Resend * Experience with scraping, enrichment tools, job boards, or recruiting products * Experience building early-stage SaaS products Why join: You will work directly on a live early-stage product with real users. This is a hands-on role for someone who likes building, testing, and improving things quickly. You will have a lot of ownership and direct impact on the product. How to apply: Send a short note about yourself, links to projects you have built, your availability, and your expected rate.
$20,000.00
Fixed-price- Entry levelExperience Level
- Remote Job
- Ongoing projectProject Type
Skills and Expertise
Activity on this job
- Proposals:50+
- Interviewing:0
- Invites sent:0
- Unanswered invites:0
About the client
- FINHelsinki9:36 PM
- $524 total spent24 hires, 7 active
- 18 hours
- Tech & ITIndividual client
Explore similar jobs on Upwork
How it works
Create your free profileHighlight your skills and experience, show your portfolio, and set your ideal pay rate.
Work the way you wantApply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
Get paid securelyFrom contract to payment, we help you work safely and get paid securely.
About Upwork
- 4.9/5(Average rating of clients by professionals)
- G2 2021#1 freelance platform
- 49,000+Signed contract every week
- $2.3BFreelancers earned on Upwork in 2020
Find the best freelance jobs
Growing your career is as easy as creating a free profile and finding work like this that fits your skills.
Trusted by