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Introduction

Langflow is one of the most exciting and rapidly growing parts of our company. Langflow powers our open-source community, cloud offerings, and upcoming integrations with major platforms like NVidia R2X and IBM WatsonX. Our engineering team is scaling to meet demand, and we're creating a new Core Systems group focused on building the execution engine that powers Langflow applications at scale. 

Votre rôle et vos responsabilités

We are looking for a Core Systems Software Engineer to join the new Langflow Runtime team. Your mission will be to help build a highly efficient, reliable, and scalable execution environment for Langflow applications — capable of serving thousands of concurrent users with low latency and high resiliency. 

This is a deep technical systems role — not a frontend or typical backend "web app" position. You will work on the foundation of Langflow’s production infrastructure, ensuring we can deliver a world-class runtime experience both in the cloud and on-premises. 

You will be joining a collaborative team of experienced engineers, working closely with other Langflow groups building the open-source platform, the cloud-hosted product (Astra integration), and the IBM Watson integration.  

What you will do: 

  • Design, build, and optimize a new runtime execution engine for Langflow applications.
  • Profile and optimize system performance (e.g., memory management, concurrency, throughput).
  • Refactor parts of the existing Python-based runtime to improve reliability while building a next-generation architecture.
  • Collaborate closely with the open-source and cloud product teams to ensure seamless integration.
  • Participate in architecture discussions, design reviews, and planning sessions.
  • Contribute to a strong engineering culture with code reviews, testing, and best practices.
  • Mentor and support fellow engineers on system design and runtime development best practices.
Formation requise
Licence
Formation préférée
Master
Expertise professionnelle et technique requise

Your Experience should include (Required experience) 

  • software engineering experience with a focus on core systems, distributed systems, or runtime environments.
  • Strong professional experience with Python.
  • Experience building scalable, concurrent server-side systems — not just API endpoints.
  • Familiarity with performance profiling and optimization (memory, CPU, network bottlenecks).
  • Background with at least one lower-level systems language such as Go, Rust, or Java.
  • Practical experience working on cloud-based services or other large-scale production environments.
  • Ability to reason about system behavior under load, failure conditions, and scaling pressure.
  • Experience with distributed systems patterns (e.g., actors, queues, caching, retries).
  • Excellent communication skills and a collaborative, team-oriented mindset.
Expertise professionnelle et technique préférée

Nice to Have:(Preferred experience) 

  • Experience with open-source projects like Ray, Dagster, Dask or FastAPI.
  • Previous contributions to cloud runtime infrastructure, ML ops infrastructure, or serverless runtimes.
  • Interest in future leadership opportunities (e.g., tech lead roles as the team grows).

À propos de la Business Unit

IBM Software insuffle de l'intelligence dans les opérations métier de base, de l'apprentissage automatique à l'IA générative, afin d'aider les organisations à être plus réactives, plus productives et plus résilientes. IBM Software aide ses clients à mettre l'IA en action dès maintenant pour créer une valeur réelle avec confiance, rapidité et assurance dans les domaines du travail numérique, de l'automatisation informatique, de la modernisation des applications, de la sécurité et du développement durable. La capacité d'utiliser toutes les données est essentielle à cet égard, car l'IA ne vaut que ce que valent les données qui l'alimentent. Dans la plupart des organisations, les données sont réparties entre plusieurs clouds, sur site, dans des centres de données privés et à la périphérie. La plateforme d'IA et de données d'IBM met à l'échelle et accélère l'impact de l'IA avec des données fiables, et fournit des capacités de pointe pour entraîner, régler et déployer l'IA dans l'ensemble de l'entreprise. La plateforme cloud hybride d'IBM est l'une des approches les plus complètes et les plus cohérentes en matière de développement, de sécurité et d'opérations dans les environnements hybrides : une base flexible pour exploiter les données, où qu'elles se trouvent, afin d'étendre l'IA au coeur de l'entreprise.

VOTRE VIE CHEZ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you’ll be able to learn and develop yourself and your career, you’ll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.


Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.


Are you ready to be an IBMer?

À propos d'IBM

IBM’s greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.


Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we’re also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business. 


At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it’s time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

Autres détails pertinents sur le poste

Must have the ability to work in Canada without sponsorship.


This role will involve working with technology that is covered by Export Regulations sanctions. If you are a Foreign National from any of the following US sanctioned countries (Cuba, Iran, North Korea, Syria, and the Crimea, Luhansk, Donetsk, Kherson, and Zaporizhia regions of Ukraine) on a work permit, you are not eligible for employment in this position.