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Luxoft is an IT consulting and software engineering services firm that provides bespoke technology solutions to external clients, often operating as a staff augmentation or professional services provider.

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Luxoft
Posted 1mo ago

Senior/Lead Python Software Engineer

Luxoft
luxoft.comView all open roles
Belgrade, Belgrade District, Serbia
OnsiteFull Time
Responsibilities
  • building backend
  • deploying models
  • leading teams
Requirements
  • 5+ years Python experience
  • Fintech or trading platform background
  • ML productionization
  • Microservices design
  • Data visualization with Pandas/Plotly
  • Agile experience
  • Cross-platform systems expertise
Technical tools mentioned
PythonPandasPlotlyFastAPIFlaskDjangoAsyncIOPodmanDockerPostgreSQLMongoDBRabbitMQKafkaGitLinuxUbuntuWindows ServerReactPlotly Dash

Job description

Project description

We are looking for a Senior/Lead Full-Stack Python Developer to drive the development of complex, data-intensive systems. This is a "hands-on" leadership role requiring a combination of full-stack capabilities. You will be responsible for building scalable backend engines, sophisticated data visualizations, and ensuring the seamless integration of machine learning models into production environments.
The ideal candidate is a "force multiplier"—someone capable of solving deep technical bottlenecks independently but who excels at leading a team toward a collective architectural goal. You don't just write code; you build systems that solve business problems.

Responsibilities

  • Strategic Thinking: As a subject matter expert, you are expected to foresee architectural bottlenecks and potential security or scalability problems well in advance.
  • Full-Stack Ownership: Ability to operate as an agile developer solo or within a small team across the entire stack, leading the team through complex sprints.
  • Rapid Development: Execute in an Agile environment with a focus on high-velocity delivery without sacrificing system stability or code integrity.
  • System Architecture: Design and implement resilient microservices that handle high-volume data ingestion and real-time processing.
  • ML Implementation: Bridge the gap between data science and production, deploying Python-based machine learning models into live, high-stakes environments.
  • Technical Leadership: Conduct rigorous code reviews, mentor senior engineering staff, and define the long-term technical roadmap

Skills

Must have

  • Expertise in FinTech: A proven track record of building secure, high-performance financial or trading platforms.
  • Lead Capacity: 5+ years of total experience (Python)
  • Complex Systems: Experience managing systems with intricate dependencies, real-time data needs, and cross-platform (Linux/Windows) requirements.
  • Agile Mastery: Deep understanding of Agile methodologies and the ability to pivot quickly in a fast-paced development cycle.
  • ML Productionization: Lead the effort to deploy and monitor Python-based machine learning models in live, high-stakes FinTech environments.
  • Data Fluency: Deep experience using Pandas for complex data transformations and Plotly for stakeholder-facing visualizations.
  • Backend: Python (FastAPI/Flask/Django), AsyncIO, and Machine Learning integration.

Nice to have

  • Domain Knowledge: Experience or strong interest in Power Markets and global energy data.
  • Infrastructure: Advanced knowledge of containerization and orchestration (Podman/Docker).
  • Data Management: Mastery of both Relational (PostgreSQL) and Non-Relational (MongoDB) databases.
  • Messaging & Event Streaming: High-concurrency environments using RabbitMQ or Kafka.
  • DevOps & Infrastructure: Docker/Podman, Git, and the ability to manage/troubleshoot both Linux (Ubuntu) and Windows Server environments.
  • Architecture: Design and maintenance of scalable Microservices.
  • Frontend & Data Viz: React / Plotly / Plotly Dash for building complex analytical dashboards.

Other

Languages: English: C1 Advanced

Seniority: Senior