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Senior Backend Engineer

Remote: 
Full Remote
Experience: 
Senior (5-10 years)
Work from: 
Cyprus, Poland, Spain

Offer summary

Qualifications:

5+ years of experience in Python development, Strong knowledge of Python 3, Experience with AWS services, Solid knowledge of relational databases.

Key responsabilities:

  • Develop and enhance API performance
  • Collaborate with product and infrastructure teams
Welltech logo
Welltech Information Technology & Services Scaleup https://welltech.com/
201 - 500 Employees
About Welltech
Welltech is about creating mobile applications that improve the Health of Millions of People around the World. We currently have 500+ people in our team. The main distinguishing feature of our People is their desire to constantly grow, develop and learn new things. Why do people like to work at Welltech? • We work on creating and developing our own projects. There is no outsourcing. • The company values the initiative of its workers and their ability to work independently. • The ideas and suggestions of everyone are heard, and good ideas are quickly implemented and tested out. • Clearly stated goals and priorities help workers focus on important tasks and organize their work properly. • Weekly meetings with managers give employees the opportunity to get feedback about their work and understand how to achieve the best results. About our technologies: iOS: Swift, MVC, MVVM, Dependency Injection, UIKit, Autolayout, REST API, Alamofire, In-App Purchases, Local and Remote notifications, Grand Central Dispatch, NSOperations, Core Data, Realm, AVFoundation. Android: Kotlin, MVVM, Android Architecture Components, Dependency Injection, REST API, Push Notifications, Crashlytics, Offline mode. We use PHP7, Python, Symfony4, MariaDB, MySQL, PostgreSQL, Redis, Elasticsearch, Amazon AWS (Lambda, S3, DynamoDB, RDS, SQS, etc), Docker, Kubernetes. The company has successfully implemented CI on all projects. Welltech is a data-driven company. The analytics department uses different tools. Data storage: Amazon redshift + Spectrum Data processing — R, Python BI — Data studio, Tableau Data sources — platform APIs, incoming data streams
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Job description

🚀 Who Are We?

Welcome to Welltech—where health meets innovation! 🌍 As a global leader in Health & Fitness industry, we’ve crossed over 200 million installs with five life-changing apps, all designed to boost well-being for millions. Our mission? To transform lives through intuitive nutrition trackers, powerful fitness solutions, and personalized wellness journeys—all powered by a diverse team of over 700 passionate professionals with presence across 5 hubs.

Why Welltech? Imagine joining a team where your impact on global health and wellness is felt daily. At Welltech, we strive to be proactive wellness partners for our users, while continually evolving ourselves.

What We're Looking For

We are the product and engineering team responsible for Yoga-Go. We help improve the health and wellbeing of millions of people around the world by providing them with the best environment to practice yoga and related soothing activities for both the body and mind, at home.

We are looking for a Senior Back-end Engineer who is dreaming of developing ambitious IT products and wants to join our team and contribute to the development and maintenance of our core product, Yoga-Go.

Key Responsibilities:

  • Develop, support, and enhance the performance of the API for one of the company’s most critical projects.

  • Work with the core AWS services (AWS Lambda / API Gateway / SQS / CloudFormation / CloudWatch / SNS).

  • Continuously audit and improve existing architecture.

  • Collaborate with product and infrastructure teams to understand deployment needs and scale systems effectively.

  • Contribute to the evolution of our software architecture to support growth into new and more complex environments.

  • Set and uphold high technical standards for building fault-tolerant distributed systems.


Required Skills:

  • 5+ years of experience in Python development.

  • Strong knowledge of Python 3.

  • Solid knowledge of and the ability to work with relational databases (Postgres or others).

  • Experience with SQLAlchemy (or any other ORM).

  • Experience with AWS services (Lambda/API Gateway/SQS/SES/CloudFormation/CloudWatch).

  • Ability to highlight risks and propose efficient solutions.

  • Ability to learn quickly, collaborate cross-functionally, and communicate effectively.

  • Good command of English.

Nice to have:

• Experience working with non-relational DBs (NoSQL, etc.)

• Experience working with asynchrony in Python

• Experience with frontend

Candidate journey: ⭕️ Recruiter call ----> ⭕️ Skills assessment-----> ⭕️ Meet the hiring manager

✨ Why You’ll Love Being Part of Welltech:

  • Grow Together: Join a culture that champions both personal and professional growth. Here, you’ll thrive as we learn, evolve, and succeed together.

  • Lead by Example: No matter your role, your leadership matters. Every team member is empowered to inspire and make an impact.

  • Results-Driven: We’re all about achieving meaningful outcomes. It’s not just about the effort, but the difference we make every day.

  • We Are Well-Makers: Be part of a movement that’s creating a healthier, happier world. Together, we make well-being a reality!

Check out some of our products

Muscle Booster — https://musclebooster.fitness/ 

Yoga-Go — https://yoga-go.io/ 

Omo — bit.ly/OMOio 

FastEasy — https://fasteasy.life/ 

WalkFit - http://walkfit.pro

Required profile

Experience

Level of experience: Senior (5-10 years)
Industry :
Information Technology & Services
Spoken language(s):
English
Check out the description to know which languages are mandatory.

Hard Skills

Python (Programming Language)Amazon Web ServicesSQLAlchemyPython (Programming Language)Relational DatabasesAmazon Web ServicesNoSQLFront End (Software Engineering)Asynchronous Communication

Other Skills

  • Collaboration
  • Communication
  • Problem Solving
Are you interested?

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