Senior Software Engineer (Full Stack, front-end heavy)

Collectly Inc.

Job Overview

Location

Barcelona

Job Type

Full-time

Full Job Description

📋 Description

• Own the end-to-end delivery of front-end heavy features for Collectly’s patient-facing and provider-facing web applications, translating Figma designs into pixel-perfect React components that delight 85,000+ daily users across 500+ healthcare organizations.
• Architect and maintain scalable, reusable UI patterns inside our internal UI Kit (built on React + TypeScript + Storybook) so that every new screen loads in <200 ms and meets WCAG 2.1 AA accessibility standards without additional QA cycles.
• Lead complex product initiatives such as real-time insurance eligibility checks, dynamic payment-plan calculators, and HIPAA-compliant chat widgets—driving a 30 % reduction in patient billing inquiries and a 22 % lift in on-time collections for our clients.
• Collaborate daily with Product, Design, and Customer Success in a hybrid, async-first culture spanning Santa Monica, New York, and Barcelona; run weekly demos, gather user feedback, and iterate in two-week sprints that ship to production every Tuesday.
• Write clean, type-safe code: 80 % front-end (React 18, Redux Toolkit, React Query, Emotion) and 20 % back-end (Python 3.11, FastAPI, SQLAlchemy, PostgreSQL) so you can unblock yourself and deliver features without waiting for another team.
• Establish and evangelize front-end best practices—unit tests with Jest + React Testing Library, e2e coverage with Cypress, bundle-size budgets enforced in CI, and automated Lighthouse checks that keep our PWA score above 95.
• Mentor mid-level engineers through pair programming, design reviews, and career-growth plans; foster a culture where knowledge sharing is the default and every PR is an opportunity to level up the team.
• Instrument, monitor, and optimize performance: reduce First Input Delay by 40 %, cut bundle size by 25 %, and ensure 99.9 % uptime so patients can pay their bills at 2 a.m. without friction.
• Contribute to the strategic roadmap by translating customer pain points into technical proposals, estimating effort, and presenting trade-offs to leadership so we can hit ambitious ARR targets while keeping tech debt under control.
• Champion security and compliance: implement row-level encryption, audit logging, and SOC-2 controls that keep patient data safer than traditional portals and earn trust from hospital CIOs.

🎯 Requirements

• 5+ years shipping production-grade web applications with React, TypeScript, and modern build tooling.
• Demonstrated ability to turn high-fidelity designs into responsive, accessible, and performant UIs with obsessive attention to detail.
• Strong written and verbal English communication skills; comfortable presenting to stakeholders and writing concise technical specs.
• Nice-to-have: hands-on experience with Python, SQLAlchemy, and PostgreSQL to own features across the stack.
• Nice-to-have: prior work extending or creating custom design systems and component libraries.

🏖️ Benefits

• Competitive salary of €85,000–€108,000 annually plus stock options in a fast-growing Y Combinator startup that just closed a $29 M Series B.
• Fully remote-first culture with optional co-working budget and quarterly team off-sites in Barcelona, Lisbon, or the Canary Islands.
• Comprehensive private health insurance, mental-wellness stipend, and unlimited PTO policy that people actually use.
• Annual learning & development budget of €2,000 for conferences, courses, or new hardware—plus dedicated time every Friday for personal growth.

Skills & Technologies

Python

TypeScript

React

PostgreSQL

Frontend

Senior

Remote

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Collectly Inc.

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About Collectly Inc.

Collectly Inc. empowers healthcare leaders with AI-powered Revenue Cycle Management and patient engagement solutions. The company specializes in automating the entire patient financial experience through intelligent AI agents, streamlining everything from eligibility and benefits verification to digital check-ins, in-person payments, and post-service billing. Their flagship AI voice agent for patient billing helps medical groups, health systems, and RCM companies demystify the billing process, improve cash flow, and significantly reduce operational costs. Serving over 3,000 facilities, Collectly is proven to accelerate patient payments, enabling collections in just a week or two compared to the industry average of 60-90 days, leading to a substantial increase in patient payment rates for their clients.

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