Senior Backend Engineer (Node.js / TypeScript) · Careers · Hashorn
About this role
All open roles Engineering · Full-time or Contract · Posted May 10, 2026 Senior Backend Engineer (Node.js / TypeScript) Build production-grade backends in Node.js and TypeScript for AI-augmented product teams. Architecture, ownership, and a weekly demo cadence. AI in your toolbelt, not in the driver's seat. Experience 5+ years Location Remote · async-first · US/UK/EU/ME overlap Working style Async-first · weekly demos Engagement Full-time or Contract Apply via email Opens your email client. Or write to hr@hashorn.com About the role You'll be the technical owner on customer engagements, usually 4-12 weeks of project work or longer dedicated-pod retainers. You'll write production code, review every PR (yours and AI's), and stand behind the architecture you ship. We're a senior-only studio: no juniors guarded by one senior, no agency-of-the-week mid-levels. What you'll do Design and ship backend services in TypeScript / Node.js: APIs, ledgers, integrations, queues, webhooks. Own architecture decisions: data model, deployment shape, observability, on-call story. Pair with QA and Security engineers from day one of the engagement, not at the end. Use AI assistants for scaffolding, code review, and test generation; reject what's wrong; keep what's right. Demo working software every Friday. Document as part of the Definition of Done. Hand over to client teams with runbooks, decision logs, and onboarding sessions. What you bring 5+ years building production backends in TypeScript / Node.js (or strong Go / Python adjacent + clear path to TS). Deep PostgreSQL knowledge: schema design, indexing, query plans, migrations under traffic. Comfort with AWS (or GCP / Azure) at the level needed to ship: ECS / Lambda / RDS / S3 / IAM. Track record of owning a production system end-to-end, not just shipping features into one. Written communication good enough that documentation isn't a chore. Comfort working async across at least one time-zone boundary (US, UK, EU, or ME). Nice to have Stripe / payment-rails integration experience (Issuing, Connect, billing). Multi-tenant SaaS architecture experience. OSS contributions or technical writing. Compensation Competitive global rate, scaled to experience and engagement. Profit-share for full-time hires. Ready to apply? Hit the button below. Your email client will open with a pre-filled message addressed to hr@hashorn.com referencing this role. Add a few sentences about yourself, attach your CV, and send. Apply via email Opens your email client. Or write to hr@hashorn.com At a glance Department Engineering Engagement Full-time or Contract Min experience 5+ years Location Remote · async-first · US/UK/EU/ME overlap Posted May 10, 2026 Other open roles Sales & Marketing Executive MLOps Engineer Machine Learning Engineer Senior Product Manager Don't see your role here? Drop us a line at hr@hashorn.com, we always read introductions from senior people who care about craft.
What this role is, and what else it is called
Employers in the UK advertise this kind of work as Web Developer, Software Engineer, Software Developer and PHP Web Developer too, so it is worth searching more than one wording. It is a senior Software Engineering role in the UK, advertised as fully remote, so it is open to candidates working from home.
About hiring at Hashorn
Hashorn has 3 other live technology roles on its careers page, across Software Engineering and Data, AI & Machine Learning. Of those, 100% are advertised as fully remote and 0% as hybrid. Elsewhere in its adverts Hashorn asks for Generative AI, TensorFlow and PyTorch. We have been observing Hashorn hiring technology staff since July 2026. See all Hashorn roles, salaries and stack.
How this role compares to the market
1,965 live UK roles list Python right now, from 584 employers. The median advertised salary is £80,000; 30% are advertised as remote. Browse Python roles.
713 live UK roles list TypeScript right now, from 270 employers. The median advertised salary is £80,000; 46% are advertised as remote. Browse TypeScript roles.
Senior roles make up 1,630 of the live UK IT market and advertise a median of £80,000.
Market figures are today's snapshot of live UK roles on employer careers pages; see hiring trends.
Technologies mentioned
Detected on Hashorn's careers page. ProdReady Recruitment lists this vacancy as an aggregator and is not the employer; applications go to the employer's own site.