Fullstack Consultant, Java/Kotlin
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Fullstack Consultant delivering end-to-end technical solutions as a freelancer. Collaborating on numerous projects remotely in Poland, specializing in Java and Kotlin.
Responsibilities:
- independently deliver end-to-end technical solutions
- collaborate directly with technical and business stakeholders
- structure implementation scope and estimate effort
- balance engineering quality with pragmatic delivery decisions
Requirements:
- strong experience building end-to-end solutions across backend and frontend
- strong commercial experience with Java and Kotlin
- focus on software quality and real business impact
- active and pragmatic use of AI tools
Benefits:
- flexibility in cooperation models
- access to international projects
- long-term relationships instead of transactional processes
Similar Jobs

Desarrollador Backend – Certificación APX
Desarrollador Backend con certificación APX para The Whiteam, consultora tecnológica. Participación remota en proyectos de desarrollo backend y crecimiento profesional.

Programador/a Angular, Python
Programador/a Angular y Python desarrollando y manteniendo aplicaciones web para The Whiteam Consulting. Colaboración en proyectos tecnológicos innovadores dentro de equipos ágiles.

Associate Engineer – Back End
Associate Backend Engineer building C#/.NET desktop software for Xero’s small-business platform. Developing WPF interfaces, testing features, debugging systems, and improving engineering processes.

Senior .NET Back-End Developer
Desenvolvedor Back-End .NET sênior para a FCamara, atuando com banco de investimentos latino-americano. Sustentação de sistemas críticos, APIs, microsserviços, integrações e observabilidade.

Senior .NET Developer
Desenvolvedor .NET sênior criando APIs e microsserviços escaláveis para a Spread Tecnologia. Atuando com .NET 8, integrações distribuídas, testes, CI/CD e observabilidade.

Back-end Developer
Desenvolvedor Backend Java na Stefanini, empresa global de tecnologia e soluções digitais. Criando microserviços, APIs e soluções Kafka com Docker e Kubernetes.

Principal Technical Architect
Principal Technical Architect designing agentic AI systems and enterprise architectures for OutSystems’ unified low-code platform. Advising customers and mentoring teams on secure, scalable application delivery.

Senior Golang Developer
Senior Golang Developer building high-load backend services for Group-IB’s cybersecurity and digital crime prevention products. Designing APIs, integrations, and scalable systems.

Senior C++ Engineer
Senior C++ Engineer developing and testing SONiC software for Arista Networks’ data-center switches. Building routing features, automated tests, and customer network fixes.

Lead Developer, C#/.NET
Lead C#/.NET Entwickler für digitale Immobilienbewertungssysteme bei VALUE AG. Architektur, Kubernetes-Services, CI/CD und fachliches Mentoring im Entwicklungsteam.

Senior Buyer – Indirect Materials, Services – Semiconductor, Backend
Senior Einkäufer für indirekte Materialien, Dienstleistungen und Halbleiter-Backend-Equipment bei Swissbit. Steuerung globaler Lieferanten, CAPEX-Projekte und digitaler Einkaufsprozesse.

Líder Técnico, Java
Technical Lead Java asesorando equipos y definiendo arquitectura para clientes de knowmad mood. Desarrollo de iniciativas de innovación, pruebas de concepto y soluciones de transformación digital.

Java Engineer – Sector textil
Senior Java backend engineer developing microservices for a textile-sector client. Joining knowmad mood, a digital transformation company, in a fully remote role.

Java Engineer – Sector textil
Senior Java backend engineer developing microservices for a major textile-sector client. Fully remote role at knowmad mood, a digital transformation company.

Ingeniero/a Software, Java
Ingeniero/a Java remoto desarrollando proyectos de transformación digital para knowmad mood, compañía tecnológica española. Trabajando con Spring Boot, microservicios y entornos tecnológicos actualizados.

Ingeniero/a Software, Java
Ingeniero/a Java desarrollando soluciones backend con Spring Boot y microservicios para knowmad mood, compañía de transformación digital. Trabajo 100% remoto en proyectos tecnológicos actualizados.

Ingeniero/a Software, Java
Ingeniero Java desarrollando soluciones digitales para clientes de knowmad mood. Trabajando con Spring Boot, microservicios, bases de datos y entornos tecnológicos actualizados.

Ingeniero/a Software, Java
Java software engineer developing Spring Boot microservices for knowmad mood, a digital transformation company. Building client projects remotely with modern technologies and agile practices.

Senior .Net Engineer
Senior .NET Engineer building scalable C#/.NET services for Avenga’s distributed FinTech platform. Designing APIs, event-driven systems, and financial data solutions.

Senior Backend Engineer – Databases, Analytics
Senior Backend Engineer building Grafana Labs’ AI-native database platform for enterprise observability. Designing distributed storage, query, and retrieval systems for production SaaS.
