Flatgigs logo
Flatgigs

Scaling Investor-Backed Startups & Growth Companies

Data Engineer, Python

Backend EngineerSoftware EngineerFull TimeRemoteSeniorTeam 1-10Since 2023H1B No SponsorCompany SiteLinkedIn

Location

Sri Lanka

Posted

1 day ago

Salary

0

Seniority

Senior

Bachelor Degree5 yrs expEnglishApacheAzurePandasPythonScikit-LearnSparkSQL

Job Description

Data Engineer, Python

Flatgigs

• Own the Python engine layer for algorithms and data processing • Process large volumes of operational schedule data through constraint evaluation • Generate periodic staff rosters by solving constraint problems • Real-time task assignment using proximity scoring against live employee location data • Scheduled KPI aggregation and SLA scoring across all modules

Job Requirements

  • 5 or more years of Python backend or data engineering experience
  • Experience with constraint solving, optimization, or scheduling algorithms (OR-Tools, PuLP, or equivalent)
  • Strong data processing experience with large datasets (Polars, pandas, or Apache Spark)
  • Experience with task queues and async processing (Celery, RQ, or equivalent)
  • Familiarity with Azure
  • Comfortable working with SQL databases and writing performant queries
  • Experience consuming REST APIs and message queues
  • Experience with Azure Functions or equivalent serverless compute
  • Experience with OR-Tools specifically
  • Knowledge of scikit-learn or ML model integration (ONNX, Azure ML) for a future ML upgrade path
  • Experience with Pydantic for data validation and schema enforcement
  • Experience with large-scale workforce management or scheduling systems
  • Familiarity with SLA-based operational frameworks
  • Experience working in fast-paced, operationally critical environments

Related Job Pages

More Backend Engineer Jobs

Full TimeRemoteTeam 2-10Since 2025H1B No Sponsor

• Migrate and refactor existing Python logic into Golang services owned by various other teams. • Rapidly learn and adapt to internal tools, systems, and processes to speed up migration. • Collaborate closely with engineers across teams to ensure smooth delivery. • Debug complex issues quickly and provide clear, actionable solutions. • Maintain high-quality, well-tested code with thorough validation. • Identify and implement improvements in our migration tooling.

Argentina

Role Description We are looking for a seasoned Backend Engineer with deep expertise in PHP and a strong track record leading complex, scalable system architectures. The ideal candidate brings solid experience across databases, cloud services, microservices, DevOps practices, and secure API development to drive high-quality, reliable backend solutions. - Architect and design complex systems ensuring scalability and reliability - Build and maintain core backend services using best-in-class technologies and frameworks - Optimize performance and scalability by identifying bottlenecks and implementing efficient solutions - Ensure security and compliance with proper authentication, data protection, and regulatory measures - Mentor and guide team members through technical discussions, code reviews, and knowledge-sharing - Conduct thorough code reviews to uphold high-quality coding standards and maintain best practices - Collaborate with cross-functional teams to align technical solutions with business goals - Manage databases by designing, monitoring, and optimizing for performance and reliability - Implement robust testing strategies for stable, resilient systems - Lead incident management by troubleshooting critical issues, driving root cause analysis, and implementing preventive measures - Stay current with industry trends and integrate emerging tools, frameworks, and practices to enhance backend systems Qualifications - Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience) - 5+ years of professional experience in backend development with proven leadership on complex projects - Expert proficiency in PHP backend programming language and frameworks - Proficiency in backend programming languages (e.g., Python, Go, Node.js) is a big plus - Deep understanding of scalable system architecture, design patterns, and microservices principles - Extensive experience with database design, optimization, and management (both SQL and NoSQL) - Proven ability to design and implement robust, secure APIs (RESTful, GraphQL) and handle third-party integrations - Strong knowledge of cloud services (AWS, or GCP), containerization (Docker), and orchestration (Kubernetes) - Deep familiarity with security best practices, data protection, authentication, and authorization mechanisms - Experience with version control (Git), CI/CD pipelines, automated testing, and DevOps practices Benefits - USD salary, stable, competitive compensation regardless of currency fluctuations - Comprehensive medical insurance provided to support your wellbeing - Fully remote work with flexible hours, build your routine your way - Fast career growth in a company scaling rapidly across Saudi and the region Important Note to Applicants To ensure a smooth and efficient recruitment process for everyone, we kindly ask all candidates to complete the application questions thoroughly. We review your answers carefully, as they help us understand your experience and expectations clearly from the very beginning and avoid unnecessary back-and-forth later. Applications submitted without properly completed questions may unfortunately be deprioritized. Thank you for taking the time to fill them in thoughtfully.

Worldwide
Binance logo

Backend Engineer – Payment, Java

Binance

The World’s Leading Blockchain Ecosystem and Digital Asset Exchange

Full TimeRemoteTeam 1,001-5,000Since 2017H1B No Sponsor

• Development and implementation of financial products include but are not limited to the wallet, payment gateway, cash rebate, merchant management • Build open API features for core financial product • Communicate effectively with product managers, designing and implementing product features to support the pay system • Performance tuning, online incidents troubleshooting, and system refactoring • Write high-quality, clean, and maintainable code using engineering best practices

Singapore
Babel Group logo

AWS / OpenShift Backend Developer

Babel Group

BABEL es una consultora tecnológica multinacional especializada en aplicar sus servicios y conocimiento tecnológico en los procesos de aceleración digital de sus clientes, grandes empresas y organismos públicos. Nuestro plan estratégico Hiperespacio 2029 promete ser un viaje emocionante, lleno de oportunidades para crecer y desarrollarse profesionalmente.

Full TimeRemoteTeam 1,001-5,000

Role Description Buscamos un/a Backend Developer con fuerte experiencia en integración y microservicios, para diseñar, construir y operar soluciones críticas sobre AWS y OpenShift, interactuando con sistemas legacy y plataformas modernas. Responsabilidades del rol: - Construir y exponer servicios e integraciones (APIs, notificaciones, correos). - Diseñar la capa de integración entre sistemas legacy y nuevas plataformas. - Automatizar procesos. - Ejecutar migraciones de datos asegurando integridad y trazabilidad. - Desplegar, operar y escalar microservicios en OpenShift. - Implementar arquitecturas orientadas a eventos y asincronía. - Aplicar buenas prácticas de seguridad, calidad y diseño de software. Qualifications - Java 8 y Java 21 - Spring Boot 2.7 y/o 3 - Spring WebFlux 5.2.6 - Arquitectura de microservicios y patrones OOP - Consumo de APIs REST y SOAP - NoSQL: MongoDB y/o Redis - Asincronía con SQS y/o Kafka - Diseño orientado a eventos - Docker y Kubernetes (gestión de recursos) - AWS: S3, Lambda, EKS, CloudWatch, Redis - OpenShift (despliegue y operación) - Oracle SQL - Pruebas unitarias con JUnit - Git / GitLab y pipelines CI/CD - Gradle y/o Maven - Validación de código SAST (SonarQube) y DAST - Conocimiento de HTTP Errors y principios REST Requirements - Backend senior - Experiencia real en integraciones complejas - Capacidad para trabajar con sistemas legacy - Foco en calidad, seguridad y escalabilidad - Autonomía técnica y criterio de diseño Benefits - Proyectos de alta complejidad e impacto - Trabajo con AWS + OpenShift en entornos productivos - Arquitecturas modernas y eventos - Modalidad: 100% remota (Desde Chile) - Contrato a plazo fijo con posibilidad de extensión (sujeto a proyecto y desempeño) - Seguro complementario de salud (al pasar a indefinido) - Aguinaldos en fiestas patrias y navidad - Bono anual

Chile