Senior Back-end Engineer, NodeJS

Swing Development (SwingDev)

Senior Back-end Developer at SwingDev working on innovative InsurTech solutions. Collaborating in an agile team to enhance backend systems and APIs for home insurance.

Posted 6/22/2026full-timeRemote • 🇵🇱 PolandSenior💰 PLN 26,000 - PLN 32,000 per monthWebsite

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Hard Skills

Node.jsJavaScriptTypeScriptPostgreSQLMySQLSQL Servermicroservicessystem design patternsautomated test suitestest pyramid

Soft Skills

independent problem-solverclear communicationresponsibilityaccountabilityownershipcreativitycollaborationadaptabilityengagement in discussionsability to convey ideas

Tools & Technologies

KubernetesLambda functionsAPIsdatabasesDevOpssecurity practicesreal-time decision-makingproduction environmentsautomated testingagile methodologies

Industry Keywords

Defense in Depthsoftware designarchitecturehigh-quality codeuser data securityproduction issuestimely fixesimpactful projectsbusiness processesrequirements gathering

Tech Stack

Tools & technologies

JavaScriptKubernetesMicroservicesMySQLNode.jsPostgresSQLTypeScript

About the role

Key responsibilities & impact

You'll architect and implement backends and their interactions with various data stores and other APIs (including 3rd party APIs).
You'll work in an agile environment focusing on projects that are impactful on our business.
You'll support reliable databases and APIs for real-time automated decision-making.
You'll deploy your software using industry-standard tooling like Kubernetes clusters, and Lambda functions.
You'll investigate and resolve production issues by analyzing code, data, and system behavior and then propose and implement timely fixes to minimize user impact.
You'll care deeply about security in everything you do and constantly raise the baseline of how we defend our user's data against external threats and themselves.
You'll implement robust automated test suites to ensure high quality and low failure rate of delivered code.
You'll work in a DevOps style to make sure Defense in Depth principles are followed and containers are as secure as humanly possible.
You'll work closely with Product Managers, Senior Engineers and Architects to understand business processes, rules, and requirements, and turn them into high-quality code with automated tests, and deploy them to production.
You'll have huge creative freedom and ability to put your mark on the project, and you will take ownership and responsibility for what you do.

Requirements

What you’ll need

Have at least 5 years of hands-on experience with Node.js, JavaScript, and TypeScript.
Possess a good, practical knowledge of at least one relational database system, e.g. PostgreSQL/MySQL/SQL Server.
Are adept with microservices and system design patterns.
Can engage in discussions and decisions regarding software design and architecture.
Are independent problem-solver.
Have the ability to convey ideas clearly across technical and non-technical teams.
Can demonstrate responsibility, accountability, and a strong sense of ownership in delivering high-quality work.
Have experience implementing the test pyramid (unit, integration, e2e tests).
Utilize good security practices effectively.
Show readiness to learn and expand your skill set as required by ongoing projects.
Have a good command of English (written & spoken).

Benefits

Comp & perks

📝 Form of employment of your choosing
🌎 Remote work & flexible working hours
🏖️ Non-service days
💊 Private medical care with dentists & orthodontists package for you and your family
❤️ Group life insurance
🧘 Psychotherapists support — free online sessions with psychologists and psychotherapists
🤸 Home physiotherapy
🏅 Multisport card & meditation apps reimbursed 50%
💻 Gear with Apple Logo and monitor
🌱 50% reimbursement for courses, conferences, books & certificates
🇺🇸 Free access to private language lessons
🎫 Cafeteria platform — extra “stówka” every month to spend on whatever you want to
🧒 Nanny services for parents
📦 Concierge services – a personal assistant to help you to deal with your everyday matters
🎮 Chill room with table football & PlayStation 5
🍦 Free snacks, and ice cream in the office (every day, all year round!)
🍱 Free Friday Lunch in the office
🎉 Team building events — we party together several times a year during the annual Offsite & Christmas Parties, beer after work, or our #WinterEscapeMonth workation in Cyprus.