Senior Backend Developer

Senior Backend Developer (Node.Js): Developing and optimizing enterprise-grade backend services for a business partner transparency platform with an accent on compliance automation, scalability, and system performance.Focus on building robust, secure serverless ecosystems for international ESG regulations and collaborating within agile squads.Location: Must be based in Madrid (Hybrid role, 3 days/week in office)Company osapiens develops holistic Software-as-a-Service solutions that help global companies ensure transparency, efficiency, and trust across their entire value chain via the osapiens HUB.What you will do Design, build, and optimize backend features ensuring high scalability and maintainability.Develop innovative software solutions that automate complex compliance workflows.Collaborate with product managers and engineers in agile squads of 5-7 people.Ensure secure and efficient code through rigorous reviews, testing, and CI/CD practices.Own architecture design while optimizing for performance and user experience.Mentor junior developers and contribute to technical strategy.Requirements Strong experience in backend development with Node.Js and TypeScript.English language proficiency: C1 required.Expertise in web service integration (REST, GraphQL).Familiarity with Git and Agile development methodologies.Strong product mindset with focus on business impact and scalability.Must be able to work on a hybrid schedule in Madrid.Nice to have Knowledge of German language.Culture & Benefits Purpose-driven mission within a fast-growing unicorn company.Hybrid work model balancing in-person collaboration with flexibility.Sustainable mobility and eco-friendly commuting options.Collaborative environment with open communication and team events.Global team culture with a focus on sustainable corporate growth.#J-*****-Ljbffr

Senior Backend Developer (Node.Js): Developing and optimizing enterprise-grade backend services for a business partner transparency platform with an accent on compliance automation, scalability, and system performance. Focus on building robust, secure serverless ecosystems for international ESG regulations and collaborating within agile squads.Location: Must be based in Madrid (Hybrid role, 3 days/week in office)Company osapiens develops holistic Software-as-a-Service solutions that help global companies ensure transparency, efficiency, and trust across their entire value chain via the osapiens HUB.What you will do Design, build, and optimize backend features ensuring high scalability and maintainability.Develop innovative software solutions that automate complex compliance workflows.Collaborate with product managers and engineers in agile squads of 5-7 people.Ensure secure and efficient code through rigorous reviews, testing, and CI/CD practices.Own architecture design while optimizing for performance and user experience.Mentor junior developers and contribute to technical strategy.Requirements Strong experience in backend development with Node.Js and TypeScript.English language proficiency: C1 required.Expertise in web service integration (REST, GraphQL). Familiarity with Git and Agile development methodologies.Strong product mindset with focus on business impact and scalability.Must be able to work on a hybrid schedule in Madrid.Nice to have Knowledge of German language.Culture & Benefits Purpose-driven mission within a fast-growing unicorn company.Hybrid work model balancing in-person collaboration with flexibility.Sustainable mobility and eco-friendly commuting options.Collaborative environment with open communication and team events.Global team culture with a focus on sustainable corporate growth.