Senior Backend Developer

Summary

Join Tellent as a Senior Backend Developer and build scalable backend solutions for their HR product, Tellent HR. Collaborate with a team of developers, designers, and QA engineers to deliver new features and maintain high standards for code quality. You will take ownership of key backend modules, mentor other developers, and help shape technical decisions. The role involves working on a fully remote and flexible team with a focus on maintaining a positive and collaborative atmosphere. Over the course of a year, you will progress from learning the product and architecture to independently owning complex projects and shaping the technical direction of the team. The company offers a competitive salary, benefits, and professional development opportunities.

Requirements

• Strong skills in modern JavaScript and TypeScript
• At least 5 years of experience building scalable backend systems using Node.js
• Hands-on experience with: Express.js or similar backend frameworks
• Hands-on experience with: Relational databases like PostgreSQL, MySQL, or Oracle
• Hands-on experience with: ORM libraries like Sequelize or TypeORM
• Hands-on experience with: Writing and running tests with Mocha, Jest, or similar frameworks
• Hands-on experience with: Working with GraphQL APIs
• Hands-on experience with: Git for version control
• A strong understanding of asynchronous programming patterns
• Excellent communication skills in both Polish and English
• A problem-solving mindset and a focus on writing reliable, maintainable code

Responsibilities

• Lead the development and maintenance of core parts of Tellent HR
• Maintain and extend existing modules, and build new ones when needed
• Work closely with Developers, QAs, and Designers to deliver high-quality solutions
• Make sure the codebase stays clean, stable, and easy to maintain
• Propose and build smart, scalable solutions to challenges as they come up
• Hunt down and fix performance bottlenecks and bugs
• Review code and help document technical decisions
• Set up profiling and monitoring so we can spot and fix performance issues early

Benefits

• Great offices and locations in Poznań, Wroclaw and Krakow OR the possibility to work fully remotely from Poland
• Working within an international, friendly team that truly values your contribution
• Brilliant culture and informal, come-as-you-are dress code
• For B2B contract salary in the range of: 20,000 - 28,000 PLN + VAT and 30 paid break days
• Employee contract option is available too (26 holiday days)
• ���1000 of training budget per year to keep you sharp and in tune with trends
• ���500 travel budget to visit your colleagues in Amsterdam, Paris or Vienna
• ���200 home office budget + work from home allowance
• Work from anywhere for 4 weeks/year
• MacBook + displays, alongside all the tools you need to succeed
• Travel reimbursement, and Wellness perks
• Fitness card (Multisport)
• Private health care (LuxMed)