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Senior Software Engineer

Complexio
CompanyComplexio
CategoryEngineering
LocationWarsaw
RemoteOn-site (inferred)
EmploymentFull-time
LevelSenior
SalaryNot stated by the employer
Posted7 Oct 2025
Last verified30 Jul 2026
SourceEmployer career page (workable)
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Description
Complexio’s Foundational AI platform automates business processes by ingesting and understanding complete enterprise data—both structured and unstructured. Through proprietary models, knowledge graphs, and orchestration layers, Complexio maps human-computer interactions and autonomously executes complex workflows at scale. Established as a joint venture between Hafnia and Símbolo—with partners including Marfin Management, C Transport Maritime, BW Epic Kosan, and Trans Sea Transport—Complexio is redefining enterprise productivity through context-aware, privacy-first automation. The project focuses on enhancing business processes through the use of artificial intelligence and advanced technologies. It enables intelligent data handling and supports automated decision-making. Built with modern, high-performance solutions, it ensures efficiency, security, and scalability. Requirements Qualifications 5+ years  of experience in  software development . Strong experience with  Python. Experience with  vanilla JavaScript. Experience with  relational databases  (PostgreSQL) and  KV stores  (Redis). Experience in  cloud platform  (Azure / AWS / GCP). Experience with  CI/CD pipelines  and tools like  GitHub Actions . Strong understanding of  event-driven systems  and distributed architectures. Experience with containerization tools ( Docker  / Podman) and orchestration platform (Kubernetes). English min B2.   Nice to have  Experience with  graph databases  (Neo4j) and  vector databases  (Milvus). Experience with  NLP libraries and frameworks  (spaCy / Transformers). Proficiency in compiled languages (Rust, Go, Java, C#). Experience with  machine learning concepts  and the ability to work with NLP datasets. Experience in building  web applications  using modern frameworks (React, Vue.js) or  desktop applications  (Electron, Tauri). Benefits Join a pioneering joint venture at the intersection of AI and industry transformation. Work with a diverse and collaborative team of experts from various disciplines. Opportunity for professional growth and continuous learning in a dynamic field.
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Senior Software Engineer — Complexio · Job Opportunities API