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EngineeringOn-site

Backend Engineer

Junior AI · On-site

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Last seen by MeritLog September 11, 2026Source: AshbySource version: ashby-public-job-posting-v1

MeritLog read this listing from Junior AI's Ashby job board and last checked it on September 11, 2026.

Source: the employer's Ashby job board. Open the original listing for current details.

Job details

Work model
On-site
Salary
Not listed by source
Location
New York City
Company website
myjunior.notion.site

Hiring context

How this role compares at Junior AI

Junior AI has 20 live roles in MeritLog’s catalog across 6 job families, and 10 of them are in engineering. 10 of those listings publish a pay range, a disclosure rate of 50%.

Junior AI concentrates this hiring in:

Counted across the job boards MeritLog tracks, at the time this page was served. Pay comparisons use only listings that publish a complete range in the same currency and period.

What the role asks for

What they're asking for

  • Are based in NYC and excited to work 5 days a week in personSkill
  • Are excited by the intersection of AI infrastructure, financial systems, and backend engineeringSkill
  • Have experience owning backend projects end-to-end - from architecture through to productionSkill
  • Are strong in Python and TypeScriptSkill
  • Have worked with PostgreSQL and care about data modelling, reliability, and system designSkill
  • Are comfortable building APIs, internal tools, workflows, and infrastructure that support real customersSkill
  • Are eager to contribute to product decisions, not just execute ticketsSkill
  • Feel like you are never building fast enoughSkill
  • Billing, payments, usage-based pricing, or financial workflowsSkillPreferred
  • Internal infrastructure / dev tools at startupsSkillPreferred
  • Data pipelines, workflow orchestration, or event-driven systemsSkillPreferred
  • Retrieval, embeddings, or prompt orchestrationSkillPreferred

Parsed by MeritLog from the employer’s own posting. The full description follows below.

Job description

👶 ABOUT JUNIOR Junior is building the AI operating system for investment research. Our software helps private equity firms, consultants and financial institutions complete high-stakes research workflows dramatically faster - from diligence and memo writing to market mapping, research synthesis and strategic analysis. We’re trusted by several of the world’s top private equity firms, Big Four consultancies and leading financial institutions. - Bootstrapped and profitable - $25M+ in revenue after growing 10x last year - 60+ people across the company - 23-person engineering team, growing to 40+ this year - Core stack: TypeScript, Next.js and PostgreSQL You’d be joining early enough to shape the product, engineering culture and company, but with enough traction that everything you build lands immediately in front of demanding, paying customers. 💡 ROLE DESCRIPTION As a Backend Engineer, you’ll help build and scale the systems that power our AI-driven research platform. This is a systems-level role - ideal for engineers who love thinking about data flows, orchestration, and performance across complex distributed systems. You'll have the unique opportunity to: - Ship quickly - Architect and scale backend systems that support high-throughput LLM interactions, vector search, and multi-agent orchestration. - Stitch together AI infrastructure across model providers, data stores, and internal APIs to create cohesive, performant systems. - Own reliability and observability, helping us evolve our database (Postgres / ClickHouse) and job orchestration systems. - Prototype new backend capabilities (retrieval pipelines, caching layers, async task queues) that let us build faster and smarter. - Shape our engineering culture 🔥 ABOUT YOU We're looking for product-minded backend engineers who: - Are based in NYC and excited to work 5 days a week in person - Are excited by the intersection of AI infrastructure, financial systems, and backend engineering - Have experience owning backend projects end-to-end - from architecture through to production - Are strong in Python and TypeScript - Have worked with PostgreSQL and care about data modelling, reliability, and system design - Are comfortable building APIs, internal tools, workflows, and infrastructure that support real customers - Are eager to contribute to product decisions, not just execute tickets - Feel like you are never building fast enough Bonus points for experience working on: - Billing, payments, usage-based pricing, or financial workflows - Internal infrastructure / dev tools at startups - Data pipelines, workflow orchestration, or event-driven systems - Retrieval, embeddings, or prompt orchestration 🌵 BENEFITS All the usual benefits (competitive pay and equity, private healthcare etc). Unusual benefits: - Gym membership - In-office cook - Summers working in Greece by the beach 📩 HOW TO APPLY If you're excited about the opportunity to drive innovation at Junior, we'd love to hear from you! Email us at careers@myjunior.ai with your resume and a brief introduction. We can't wait to meet you! 🙌

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