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Januka SamaranayakeJS

Januka Samaranayake

Supermalter

Backend Engineer / Developer, Python, AI, DevOps

600 €/jour
44 projets
Paris, FR
8-15 ans

Délai de réponse moyen : 1h

À propos de Januka

I'm a software engineer with over 10 years of hands-on experience in software engineering, with a strong focus on backend engineering, development and DevOps.

I've successfully built and launched multiple AI-driven startups from scratch, and now help startups and enterprises transform ambitious ideas into robust systems that scale. Furthermore, I bring a product-first mindset, combining technical leadership with a deep understanding of early-stage innovation and execution. Whether you're in the ideation phase or scaling your infrastructure, I can step in and deliver results that move the needle.

I specialize in:
  • Crafting Proof of Concepts (POCs) to validate and de-risk ideas quickly.
  • Building Minimum Viable Products (MVPs) with clean, extensible backend architectures.
  • Designing and developing scalable, secure, and maintainable systems.
  • Implementing DevOps best practices (CI/CD, monitoring, and containerization).
  • Modernizing legacy systems with contemporary technologies.
  • Driving towards product–market fit through rapid iteration and user-driven development.
I thrive in fast-paced environments and enjoy collaborating with visionary teams who are ready to build, test, and grow.

Let’s build something impactful together!
  • Anglais

    Bilingue ou natif

  • Français

    Capacité professionnelle limitée

Accepte de travailler sur site
Paris (jusqu’à 50 km)

Expériences

  • Rhisa
    Senior software engineer
    HIGH TECH
    septembre 2021 - Aujourd'hui (4 ans et 9 mois)
    Paris, France
    At Rhisa, we specialize in gathering, structuring, and enriching medical data to deliver highly qualified, anonymized, actionable datasets for Big Pharma and Medical AI sectors.

    Key Accomplishments:

    🚀 Achieved Data Excellence: Designed and implemented advanced systems for collecting, processing, encrypting, pseudonymizing, and anonymizing medical data, transforming raw information into valuable insights.

    🔍 Built a Robust Search Engine: Developed a powerful search engine capable of handling and indexing over 10 million medical records, enabling fast, accurate, and scalable data retrieval.

    🔒 Ensured Security & Compliance: Developed and integrated security measures and auditing systems, ensuring full compliance with CNIL standards and stringent health data hosting regulations.

    ⚙️ Streamlined DevOps Operations: Managed and optimized data solutions on Cegedim, a trusted French health data hosting provider, ensuring seamless, scalable, and secure data environments.

    👥 Led the Tech Department: Single-handedly managed the tech department, collaborating closely with UI designers and frontend developers to ensure the smooth delivery of high-quality technology solutions.
    Python flask Docker Docker Swarm PostgreSQL Airflow Elasticsearch DevOps Nginx cegedim Microsoft Azure Redis Jenkins NLP
  • Akarsa
    Co-founder and CTO
    HIGH TECH
    avril 2019 - août 2021 (2 ans et 5 mois)
    Paris, France
    Akarsa (akarsa.ai) is an automated engine designed to measure and enhance the effectiveness of online profiles. Cupido (askcupido.com) is its consumer-facing product, helping individuals optimize their profiles with personalized insights.

    Key Accomplishments:

    🚀 Microservices Architecture: Designed and implemented a robust microservices architecture, ensuring scalability and high availability to handle traffic bursts efficiently.

    💳 Subscription Payment Infrastructure: Developed and maintained a reliable subscription payment system on top of Stripe, including a re-implementation for 3D Secure (3DS) for secure transactions.

    ⚙️ CI/CD Automation: Established and managed CI/CD pipelines on AWS services and integrated Travis CI for automated testing, deployment, and continuous integration.

    👨‍💻 Team Leadership: Led a cross-functional team of 5 developers, including mobile and front-end developers, to ensure the smooth delivery of product features and enhancements.

    Python flask Développement Back-End DevOps PostgreSQL MongoDB Elasticsearch Amazon Web Services Kibana
  • DearMuseli
    Engineering consultant
    E-COMMERCE
    juin 2019 - juillet 2020 (1 an et 1 mois)
    Paris, France
    At DearMuesli, we specialize in generating personalized muesli recipes with Artificial Intelligence, delivering custom-made recipes in seconds.

    Key Accomplishments:

    🚀 AI-Powered Recipe Generator: Designed and developed a system that uses Artificial Intelligence to generate personalized muesli recipes based on individual preferences and dietary requirements.

    🤖 Collaborative Algorithm Development: Worked closely with the data science team to build and refine algorithms that power the recipe generation, ensuring accuracy and personalization.

    Python DevOps Artificial Intelligence

Avis

5,0

sur 27 évaluations

P

Pierre

Rhisa

Avis laissé le 05/05/2025

Januka est très professionnel et engagé à livrer avec qualité les projets qui lui sont confiés. Très forte compétence en back-end avec en plus une capacité à gérer les projets plus larges qui nécessitent de multiples compétences transverses. À recommander++
P

Pierre

Rhisa

Avis laissé le 07/12/2023

Recommandations

AB
SL
Amine Bouamama et 1 autre personne recommandent Januka

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Formations

  • B.Sc(Hons) in Computer science
    University college Dublin
    2016
    Coursework Include: Data Structures and Algorithms, Formal Foundation of Computing, Modern Operating Systems, Networks and Internet Systems, Data Mining, Distributed Systems, Object-Oriented Design, Computer Security, Artificial Intelligence.

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