Senior Backend Engineer - HomeQ

At Umain, we're not just creating software; we're crafting the future, one innovative project at a time. With our motto "Shape, Ship, Scale," we empower our team to not only envision the future but also play a pivotal role in building it. We're a dynamic team where you can shape the future, ship groundbreaking solutions, and scale your abilities in many different ways. We are now looking for Senior Backend Engineers who want to build robust solutions that power products used by millions of people. We have a proven track record: 400M+ total app downloads 50M+ monthly active users Backends handling tens of thousands of requests per second Globally recognized, multi-market applications The office in Stockholm is our default workplace, but we stay flexible when working from home makes sense for the team or the project. We trust each other to coordinate and keep things professional. Most of our work is built in Kotlin, Go, and TypeScript, and we aim to pick the tools that best fit each project so our teams can focus on delivering the right solution. The role is broad but centered on backend. You'll work on projects for both Swedish and international companies, including systems that integrate external services, automation, and frontend clients. As a Senior Backend Developer, your role will involve: Building high-performance backend systems in Go, Kotlin, TypeScript (Node.js), or Python, depending on the project. Working with frameworks such as Ktor, Fiber, and NestJS. Designing cloud-native systems with Infrastructure as Code (Terraform) across AWS, GCP, and Azure. Developing robust data models and database architectures to support application requirements. Building observable systems with the right metrics, logs, tracing, and alerting to understand and operate what we ship. Building and maintaining CI/CD pipelines with containerized deployments and scaling strategies. If you're excited by working across the stack, always learning, and making a real impact at scale, we believe you'll feel at home at Umain. Who You Are: 5+ years of experience building and running backend services in production. Comfortable owning a system end to end, from API design to deployment and operations. Strong in at least one of our core languages (Kotlin, Go, or TypeScript), and willing to pick up others as projects demand. Experience making technical decisions on a team: weighing tradeoffs, reviewing code, and mentoring peers. A product mindset: You think about maintainability, user impact, and long-term health, not just the ticket in front of you. Familiar with agentic development tools You treat unfamiliar problems and new technologies as an opportunity rather than a risk. In consulting, the next project often looks nothing like the last one, and you see that as a feature. What We Offer: A personal coach and support to help you develop both professionally and personally. A range of diverse projects that explore and push the boundaries of what's possible. A fun and fair work environment where you can grow through meaningful challenges and great colleagues. Multidisciplinary teams where backend engineers work closely with product, design, analysis, and testing. Working alongside some of the largest and most forward-thinking brands on the planet. Why Umain? Career Framework We believe in fairness and clarity, which is why we've established a transparent career framework to ensure equal pay and equal opportunities for all. Your growth and success are as important to us as they are to you. Together with your coach, you will build your own development plan and grow in your career. Work-Life Balance At Umain, we understand that life doesn't pause when you walk into the office. We welcome team members from all walks of life and recognize the richness that different backgrounds, ages, and life stages bring to a team. Whether you're taking care of your family, your pets, or yourself, we're committed to supporting a healthy balance that respects your needs. Skills Over Degrees We're more interested in what you can do than in the diplomas you hold. Talent, drive, and creativity are what count at Umain. Here, you'll find opportunities to grow, learn, and excel in your career, regardless of your educational background. Background check Umain conducts a background check for final candidates in accordance with our internal policies. The check is carried out only with your consent and is ordered by our CISO through our approved screening partner. The scope of the check depends on the role level. This step is performed late in the recruitment process and is used solely to support a secure and fact-based hiring decision.

Quartr is a software company serving the world of finance. Every day, leading companies and financial institutions worldwide use our products to research faster and understand deeper. For too long, markets have been obsessed with numbers. Everyone has access to the same quantitative data, while qualitative insights – the words, the signals, the nuance – have remained mostly in the shadows. We make those insights accessible, searchable, and actionable. Our products are used daily by some of the most sophisticated teams in finance and tech, including major hedge funds and Magnificent 7 companies, and over a million finance professionals have downloaded our mobile app. We're backed by some of the smartest minds in our industry and growing fast at a global scale, and we're still at the very beginning of what we expect to be a multi-decade journey. ABOUT THE DATA EXTRACTION TEAM Our Document Extraction team turns unstructured financial content into reliable, structured knowledge. We work with financial filings, earnings call slide decks and earnings call transcripts. The goal is not just to pull text off a page, but to understand what a document means, structure it cleanly, and produce knowledge that downstream teams and products can trust. We are looking for a Senior Engineer to own the extraction and structuring pipelines end to end. You will design the systems that ingest messy, real-world documents and output accurate, well-modeled data at scale. This is a hands-on engineering role with deep ownership, suited to someone who is equally comfortable building robust pipelines and reasoning about data quality. WHO YOU ARE * 5+ years of professional experience as a backend engineer with a focus on Python * Hands-on experience with NLP and large language models, including prompting, fine-tuning, or retrieval-based approaches. * Practical experience with document AI, OCR, or information extraction from PDFs and other unstructured formats. * Experience designing data schemas and building pipelines that produce structured, validated output. TECH * Knowledge of ETL processes and data engineering workflows for data ingestion * Solid backend architecture skills for creating scalable and maintainable systems * Experience working with AWS * Proficiency with Docker for managing and deploying backend services WHAT WE OFFER * Do your life's work: The world's leading finance professionals use Quartr daily. We do fewer things better and hold a very high bar for quality. * Join the foundational team: We're still at the very beginning of a multi-decade journey. You'll have a big influence on product, culture, and how we win. * Real ownership: We believe in shared success. Every team member gets equity exposure, so we all benefit from the value we create. * Meritocracy over hierarchy: You'll join a culture where the best idea wins. We value clear thinking, leave ego at the door, and obsess over the details. * Office culture with flexibility: Join us in one of our offices. We value being together, while also offering the flexibility to work from home when needed. * Compensation & well-being: We offer competitive salaries, benefits, and a generous wellness allowance to support your physical and mental health. We include occupational pension for all employees in Sweden. Note: We are not seeking assistance from consultants or recruitment agencies.