Senior Backend Engineer - Data Platform (m/f/d) at GlassDollar

Sofia, Sofia-City, Bulgaria -

Full Time

Start Date

Immediate

Expiry Date

12 May, 26

Salary

0.0

Posted On

11 Feb, 26

Experience

5 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

NodeJS, TypeScript, Relational Databases, LLMs, ETLs, Architecture Trade-offs, Data Ingestion, Data Enrichment, Postgres, Prisma, Observability, Reliability, Performance, Problem-Solving, Product Engineering, Scalability

Industry

technology;Information and Internet

Description

TL;DR We're looking for a Senior Backend Engineer to own the development of core data enrichment, ingestion, and retrieval systems powering GlassDollar’s AI-driven search and startup registry. What we´re looking for Product-First Background: Experience working within a product team and with business stakeholders, making technical decisions grounded in real user and business impact. Experience: 4+ years in backend engineering roles, building and owning systems that process and serve data at scale. Technical Skills: Strong proficiency in NodeJS, TypeScript, relational databases, LLMs, and ETLs. Problem-Solving Mindset: Skilled in architecture trade-offs, balancing delivery speed with quality, and delivering incremental value. Bonus: Ecosystem Knowledge: Experience working in or with domains such as startup partnering, venture capital, M&A, or corporate procurement. What you`ll do Design, build, and maintain scalable backend services using NodeJS and TypeScript. Own backend systems responsible for data ingestion and LLM-based enrichment. Own and evolve our in-house RAG-based search architecture. Work with Postgres and Prisma to ensure evolutionary data design, performance, and reliability. Act as a product engineer, understanding business problems and turning them into robust technical solutions with real impact. Take delivery ownership of major initiatives, including architecture decisions, trade-offs, and long-term scalability. Continuously improve observability, reliability, and performance of backend systems in production. How we hire We respond within a week of receiving your application. Screening call (30 min): A relaxed conversation about your CV, experience, and how it matches our needs. Technical interview (2 hours): Open-ended discussion on tech topics and past projects, plus a simple 30-minute coding task. Team fit (45 min): An open chat with the team to see how we work together — no HR bullsh*t. Paid proof-of-concept task: A 2–3-day task focused on a realistic problem that demonstrates how you work with our domain and tech stack.

Responsibilities

Design, build, and maintain scalable backend services using NodeJS and TypeScript. Own backend systems responsible for data ingestion and LLM-based enrichment.