Node.js Backend Developer

Magma Math, is a K–12 platform that helps teachers make smarter instructional decisions and encourages deeper student-driven discussions and collaboration around math.

We're a fast-growing, well-funded company in thetop tier of European EdTech— backed by$40M Series Aand growing like crazy. But we're keeping it lean, smart, and fun — without the corporate fluff.

Our work has areal impact: we’re helping students around the world get better at math, and we'rerecognized by education expertsfor improving how math is taught and learned.

We're based inWarsaw, but our team spansNew York , Stockholm , and London — and you’ll have chances to meet everyone in person!

On-site role

We expect candidates to visit our office 4 days a week.

What you’ll work with

• TypeScript, Node.js, NestJS
• MongoDB, Redis, RabbitMQ
• AWS and microservices
• Lots of integrations (we do that a lot)
• Mix of greenfield and legacy systems (nothing scary)

What you'll do

• Contribute to the design and implementation of scalable, high-performance backend services
• Work within ourmicroservices architecture, handling bothmaintenanceandgreenfield projects
• Optimize, maintain, and continuously improve existing systems while building new features
• Take ownership of the solutions you create, from concept through deployment and ongoing maintenance
• Collaborate with PMs, QAs, and other developers to create the best experience for our users

What we’re looking for

• A proven track record in software engineering with a history of impactful contributions
• Strong problem-solving skills and a passion for writing clean, efficient code
• Proficiency in system design and making architectural decisions
• A proactive attitude, with the ability to thrive in a fast-paced, growing startup environment
• Confident English– you can easily communicate complex technical concepts
• Team player– no lone wolves. You’re comfortable discussing tough problems, asking questions, and challenging ideas respectfully
• Critical thinking- You’re comfortable discussing tough problems and asking hard questions!

What we offer

• Salary up to 24,000 PLN/month (+VAT)depending on seniority
• 26 days of leave covered by a yearly bonus
• Long term incentive plan
• 10 days of paid sick leave
• Yearlyteam meetups in Stockholmwith all the people in company
• GreatWarsaw office– full floor just for us with snacks, drinks, andtop-tier coffee
• Multisport Plus card
• Table football and chill board game nights with pizza & beer
• Occasional movie nights
• We takeyour wellbeing very seriously — we want everyone to feel comfortable here

Recruitment Process:

1. 15-min intro call
2. Technical task to do at home with a followingtechnical interview (digital)
3. Interview with Head of Product (digital)
4. Culture fit interview in officeReference check