💻 Ework Group - founded in 2000, listed on Nasdaq Stockholm, with around 13,000 independent professionals on assignment - we are the total talent solutions provider who partners with clients, in both the private and public sector, and professionals to create sustainable talent supply chains.

With a focus on IT/OT, R&D, Engineering and Business Development, we deliver sustainable value through a holistic and independent approach to total talent management.

By providing comprehensive talent solutions, combined with vast industry experience and excellence in execution, we form successful collaborations. We bridge clients and partners & professionals throughout the talent supply chain, for the benefit of individuals, organizations and society.

🔹 For our Client we are looking for Lead Backend Engineer (AI/LLM Systems)🔹

Work location: Remote - In exceptional cases, there may be a need to be present at the office (Katowice/Łódź)

Highly skilled and experienced Lead Developer with a strong background in building scalable, secure, and high performance backend systems. Known for exceptional problem solving skills, ownership mindset, and a collaborative approach that strengthens team dynamics. Adept at designing modern architecture, mentoring developers, and driving engineering excellence. A true team player who consistently aligns technical decisions with business goals.

✔️Must-have:

Core Competencies

Leadership & Collaboration

• Leads cross functional engineering teams with clarity and empathy.
• Coaches developers in coding standards, architecture patterns, and best practices.
• Facilitates effective communication between technical and non technical stakeholders.

Software Architecture & System Design

• Designs modular, testable, and scalable backend systems.
• Experienced in event driven architecture, microservices, and API first design.

Quality & Reliability

• Strong advocate of automated testing, observability, and CI/CD best practices.
• Brings a quality-first mindset to code reviews and team processes.

Professional Traits:

• Proactive, reliable, and driven by continuous improvement
• Thrives in collaborative environments and champions team success
• Communicates complex technical concepts with clarity and confidence
• Values craftsmanship, clean code, and scalable architecture
• Enjoys mentoring and helping others grow technically

Primary Technologies (Expert Level)

• Python – advanced software design, async programming, performance optimization

• LangChain / LangGraph – building LLM-powered applications, agentic workflows, vector integrations

• Docker – containerization, multi stage builds, optimized production images

• Entra ID (Azure AD) – authentication/authorization flows, OAuth2, OpenID Connect

• GitLab – branching strategies, merging workflows, pipelines

• LangSmith – LLM monitoring, evaluation, tracing

• FastAPI – designing high performance REST services and backend APIs

• Pytest – unit/integration testing, fixtures, mocks

• Postgres – schema design, query optimization, migrations

• Azureite – Azure Storage emulation for local development

• Poetry – dependency & environment management

• Pydantic – data validation, settings management, typed models

• OpenTelemetry – distributed tracing, metrics, logging

✔️Nice-to-have:

Working Knowledge:

• Neo4j – graph databases, Cypher queries
• CI/CD Pipelines – design, automation, release workflows

✔️ We offer:

• B2B agreement
• Transparent working conditions with both Ework and the client
• Current support during our cooperation
• Possibility to work in an international environment
• Collaborative environment in Swedish organizational culture
• Private medical care
• Life insurance
• Multisport
• Teambuilding events

Contact person: katarzyna.borczyk@eworkgroup.com

Client code: SF01

Do you know someone who would fit this position? Recommend a candidate by sending her/his CV to: polecenia@eworkgroup.com

Whistleblowing Policy, which provides guidelines for reporting misconduct can be found on Ework website: https://www.eworkgroup.com/about-us/our-responsibility