Senior Software Engineer (Python - Data Engineering)


About Us
Welthungerhilfe (WHH) is an international aid agency headquartered in Germany with its vision for “Zero Hunger by 2030”, the second sustainable development goal set by the UN. It has thousands of programs fighting hunger in more than 30 countries. (https://www.welthungerhilfe.org/">https://www.welthungerhilfe.org) (https://www.childgrowthmonitor.org/">https://www.childgrowthmonitor.org).
Child Growth Monitor (CGM) is Welthungerhilfe’s digital innovation project leveraging AI to fight child malnutrition. Around 200 million children around the world are suffering from malnutrition. Malnutrition contributes to one-third of deaths of children under the age of five. In the fight against malnutrition, detection is the first important step, but this is not an easy task: Measuring children with traditional methods is still a complex, slow, and expensive task, frequently resulting in poor data and wrong assessments of the child’s health. Early detection of malnutrition becomes the key to initiating treatment, minimizing the risk of complications,
and saving lives by reducing the chances of death to a great extent.
Our solution to measure children replaces hardware (bulky measuring boards and physical scales) with off-the-shelf cell phones and AI. CGM uses augmented reality-enabled smartphones to record 3D scans of children. Artificial Intelligence is used to predict their height, weight, and middle upper-arm circumference needed to know the nutritional status of the children.
What you would do to help us save millions of children's lives
We are looking for you as an experienced Sr Software Engineer who works collaboratively with the dedicated team of tech specialists (AI, ML & Data Scientists) distributed globally have a shared responsibility for ensuring high quality and
Scalable health care product in an agile approach.
This posting concerns a full-time assignment working for Welthungerhilfe’s CGM in a freelance capacity but Full-time employment (payroll) is scheduled for the end of 2022 latest. We are in the process of setting up CGM as a registered social business from mostly January 2023 and moving all the consultants on CGM payrolls.
Responsibilities
- Designing, developing features, refinement/improving and implementing the CGM product in a secure, well-tested, and performant way.
- De-bugging of the current issues
- Collaborate with Product Management and other stakeholders within Engineering (Frontend, UX, etc.) to maintain a high bar for quality in a fast-paced, iterative environment.
- Advocate for improvements to product quality, security, and performance.
- Solve technical problems of moderate scope and complexity.
- Craft code that meets our internal standards for style, maintainability, and best practices for a high-scale Mobile app environment. Maintain and advocate for these standards through code review.
- Provide mentorship for Junior and Intermediate Engineers on your team to help them grow in their technical responsibilities and remove blockers to their autonomy.
Requirements and skills
- Comfort working in a highly agile, intensely iterative software development process.
- Demonstrated capacity to clearly and concisely communicate about complex technical, architectural, and/or organizational problems and propose thorough iterative solutions.
- Experience with performance and optimization problems and a demonstrated ability to both diagnose and prevent these problems.
- Extensive experience in core Python (3-7yrs)
- Should have worked on Azure or any Cloud and Azure data factory or any similar data platforms
- Experience using Flask/Flutter framework
- Experience working on mobile applications/Web applications (writing flask framework)
- Knowledge of DevOps Pipeline
- Good experience in SQL database
- Working knowledge in Data engineering (ETL pipelines Result Generation Module)
- Basic understanding of front-end technologies such as Vue JS
- Working knowledge in creating predictive models for AI and ML-based features
- Tech /BE in Computer Science with a total of 7 years of software development/Programming experience.
Desired skills
- Good to have an experience in Kubernetes (opensource system)
- Good to have experience working on healthcare mobile apps (predictive analytics and image diagnostics)
- Experience owning a project from concept to production, including proposal, discussion, and execution.
- Proficient understanding of code versioning tools
Soft/Human Skills
- Positive and solution-oriented mindset.
- Excellent communication & interpersonal skills
- Self-motivated and self-managing, with excellent organizational skills.
- Ability to thrive in a fully remote organization

About Child Growth Monitor
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Job Title: Backend Developer - Fintech
Responsibilities:
- Architect and Develop: Design, build, and maintain secure, scalable, and efficient RESTful APIs using Django Rest Framework, ensuring compliance with regulatory requirements.
- Collaborate: Work closely with cross-functional teams to gather requirements and translate them into technical specifications and actionable plans.
- Debug and Resolve: Identify and fix backend issues and bugs, ensuring a seamless user experience for financial applications.
- Optimize Systems: Continuously enhance backend systems for performance, scalability, and resource efficiency.
- Code Quality: Uphold high standards of code quality, organization, and implement automated testing processes to meet industry standards.
- Stay Updated: Keep abreast of fintech industry trends, technological advancements, and regulatory updates to continually improve backend architecture.
Requirements:
- Experience: 5+ years of proven experience in backend development with a strong skill set in Python and Django.
- API Development: Extensive experience in developing secure and compliant RESTful APIs using Django Rest Framework.
- Database Proficiency: In-depth knowledge of MySQL for database design, optimization, and maintenance; experience with MongoDB is a plus.
- DevOps: Proficiency in DevOps practices, including CI/CD pipelines, infrastructure as code, and containerization.
- Cloud Services: Exposure to cloud services (AWS, GCP) with an emphasis on security and regulatory compliance.
- Software Principles: Solid understanding of software development principles, design patterns, and best practices in the fintech domain.
- Agile Environment: Experience working in an Agile/Scrum development environment.
- Problem-Solving: Excellent problem-solving and analytical skills, with keen attention to detail.
- Collaboration: Strong communication and collaboration skills to work effectively in a team-oriented fintech environment.
- Version Control: Proficiency with Git for version control and collaborative development.
Preferred Skills:
- Asynchronous Processing: Familiarity with asynchronous task processing using Celery or similar technologies, especially in financial transaction processing.
- AWS Expertise: Strong knowledge of AWS services and infrastructure, including EC2, S3, RDS, Lambda, with a focus on security and compliance.
- GCP Expertise : VPC, Virtual Machines, SQL, IP whitelisting
- Caching Mechanisms: Experience with caching mechanisms (e.g., Redis) for optimizing real-time data access and processing.
- Continuous Learning: Eagerness to learn and adapt, staying updated with emerging technologies and methodologies in backend development and the fintech industry.


Responsibilities
· Develop Python-based APIs using FastAPI and Flask frameworks.
· Develop Python-based Automation scripts and Libraries.
· Develop Front End Components using VueJS and ReactJS.
· Writing and modifying Docker files for the Back-End and Front-End Components.
· Integrate CI/CD pipelines for Automation and Code quality checks.
· Writing complex ORM mappings using SQLAlchemy.
Required Skills:
· Strong experience in Python development in a full stack environment is a requirement, including NodeJS, VueJS/Vuex, Flask, etc.
· Experience with SQLAchemy or similar ORM frameworks.
· Experience working with Geolocation APIs (e.g., Google Maps, Mapbox).
· Experience using Elasticsearch and Airflow is a plus.
· Strong knowledge of SQL, comfortable working with MySQL and/or PostgreSQL databases.
· Understand concepts of Data Modeling.
· Experience with REST.
· Experience with Git, GitFlow, and code review process.
· Good understanding of basic UI and UX principles.
· Project excellent problem-solving and communication skills.


· Qualification: bachelor’s or master’s degree in computer science, Engineering, or any field.
· Proven experience of 6+ years in project management, preferably in software development projects involving Python.
· Strong proficiency in Python programming and familiarity with relevant frameworks.
· Excellent leadership, communication, and interpersonal skills.
· Ability to manage multiple projects simultaneously while maintaining quality and timeliness.
· Expertise in Django/Python/AWS and MySQL.
· Problem-solving aptitude and a proactive approach to challenges.
· Experience working in an Agile development environment is highly desirable.
· Strong organizational and time management skills.
· Possess a strong understanding of Python programming concepts, frameworks, and best practices.
· Assist team members with technical challenges, review code, and contribute to technical discussions.
· Develop comprehensive project plans, including scope, timelines, milestones, resources, and deliverables.


• Strong Restful API, Micro-services development experience using ASP.NET CORE Web APIs (C#);
• Must have exceptionally good software design and programming skills in .Net Core (.NET 3.X, .NET 6) Platform, C#, ASP.net MVC, ASP.net Web API (RESTful), Entity Framework & LINQ
• Good working knowledge on Azure Functions, Docker, and containers
• Expertise in Microsoft Azure Platform - Azure Functions, Application Gateway, API Management, Redis Cache, App Services, Azure Kubernetes, CosmosDB, Azure Search, Azure Service Bus, Function Apps, Azure Storage Accounts, Azure KeyVault, Azure Log Analytics, Azure Active Directory, Application Insights, Azure SQL Database, Azure IoT, Azure Event Hubs, Azure Data Factory, Virtual Networks and networking.
• Strong SQL Server expertise and familiarity with Azure Cosmos DB, Azure (Blob, Table, queue) storage, Azure SQL etc
• Experienced in Test-Driven Development, unit testing libraries, testing frameworks.
• Good knowledge of Object Oriented programming, including Design Patterns
• Cloud Architecture - Technical knowledge and implementation experience using common cloud architecture, enabling components, and deployment platforms.
• Excellent written and oral communication skills, along with the proven ability to work as a team with other disciplines outside of engineering are a must
• Solid analytical, problem-solving and troubleshooting skills
Desirable Skills:
• Certified Azure Solution Architect Expert
o Microsoft Certified: Azure – Fundamentals Exam AZ-900
o Microsoft Certified: Azure Administrator – Associate Exam AZ-104
o Microsoft Certified: Azure Developer – Associate Exam AZ-204
o Microsoft Certified: DevOps Engineer Expert (AZ-400)
o Microsoft Certified: Azure Solutions Architect Expert (AZ-305)
• Good understanding of software architecture, scalability, resilience, performance;
• Working knowledge of automation tools such as Azure DevOps, Azure Pipeline or Jenkins or similar
Roles & Responsibilities
• Defining best practices & standards for usage of libraries, frameworks and other tools being used;
• Architecture, design, and implementation of software from development, delivery, and releases.
• Breakdown complex requirements into independent architectural components, modules, tasks and strategies and collaborate with peer leadership through the full software development lifecycle to deliver top quality, on time and within budget.
• Demonstrate excellent communications with stakeholders regarding delivery goals, objectives, deliverables, plans and status throughout the software development lifecycle.
• Should be able to work with various stakeholders (Architects/Product Owners/Leadership) as well as team - Lead/ Principal/ Individual Contributor for Web UI/ Front End Development;
• Should be able to work in an agile, dynamic team environment;


Responsibilities
- Write effective, scalable code
- Develop back-end components to improve responsiveness and overall performance
- Integrate user-facing elements into applications
- Test and debug programs
- Improve functionality of existing systems
- Implement security and data protection solutions
- Assess and prioritize feature requests
- Coordinate with internal teams to understand user requirements and provide technical solutions
Requirements
- Work experience as a Python Developer
- Expertise in at least one popular Python framework (like Django, Flask or Rest Frameworks)
- Knowledge of object-relational mapping (ORM)
- Familiarity with front-end technologies (like JavaScript and HTML5)
- Team spirit
- Good problem-solving skills
- BSc in Computer Science, Engineering or relevant field


- Building customer products that operate at a scale
- Working on a back-end system using Python and Java
- Working on MySQL, NoSQL, Solr, Thrift, Flask, RabbitMQ, Redis, etc.
- Working on analytics and data science
- Working on server management (Google Cloud)
- Explore different functions of building a tech product/company early in your career.
- Learn to Prioritize Work and learn the ability to decide some technical decisions vs others ata very early stage of your career
- Be instilled with the value of hard work, ownership, and self-sustainability.
- Be more actively involved in the decision-making and functioning of the company.
- Understand the great importance of personal ownership and the liberty needed to pursue that ownership
- Hungry for Growth & Learning
- Willing to go all out for an accelerated career in software engineering
- Ready to experiment things never done before – Conquer uncharted waters
- Think Out-of-the-Box – Innovative and effective solutions
- Top Gun command over technologies (Mentioned above)
- You'll learn how to target efficiency rather than perfection.
- This empowerment will help you become a better leader at a very early stage of your career.
- Join the Core team – Get real insights into building a Product and Business ground up
- Enjoy the freedom, that comes with a lot of ownership
- Challenging and fun work environment
- Flexible Work Culture – We are a target driven organization. We like hard-workers, but we adore smart-workers more!
- Unlimited Vacation policy - Work hard, and take a break when you need


Roles & Responsibilities:
- You will be coordinating our enterprise account-specific teams called squads, consisting of members from engineering, machine-learning, and conversation-design teams.
- There are five working groups in the organization, (i) Business (ii) Research (iii) Solutions (iv) Product, and (v) Operations, where you will be joining the Solutions, working group.
- You will be collaborating with the sales team to design an appropriate solution to the customer's problems and help them showcase the value of the product.
- You will be collaborating with the operations team to ensure we are not compromising on our quality standards.
- You will also be co-working with the product working group to help them improve the overall platform and to prioritize the high-impact initiatives in the roadmap.
Work you will be doing:
- You will be building bespoke voice bots for enterprise clients using internal tools.
- You're expected to help build the Solutions stack whose goal is to reduce the amount of effort put into building our voice bots.
- You will be involved in analyzing client calls where you're expected to use either data pipelines or SQL to get insights into caller behavior.
Technical (Mandatory) Requirements
- Professional experience of at least 1 year.
- Has experience with integrating or building HTTP APIs
- Has hands-on experience working with Python
- Good communicator
Optional Requirements:
- Has experience working in any of Django Rest Framework, Redis, Celery
Technical Stack
Skit uses a microservices architecture where we employ both HTTP and GRPC to communicate between our services


Fulfil’s software engineers develop the next-generation technologies that change how millions of customer orders are fulfilled by merchants. Our products need to handle information at massive scale. We're looking for engineers who bring fresh ideas from all areas into our technology.
As a senior software engineer, you will work on our python based ORM and applications that scales to handle millions of transactions every hour. This is mission critical software and your primary focus will be building robust and scalable solutions that are easy to maintain.
In this role, you will be collaborating closely with the rest of the team working on different layers of infrastructure in an international environment. Therefore, a commitment to collaborative problem solving, sophisticated design, and quality product are important.
What You’ll Do:
- Own definition and implementation of API interfaces (REST and GraphQL). We take pride in our 100% open API with over 600 endpoints.
- Implement simple solutions to complex business logic that enables our merchants to manage financials, orders and shipments across millions of transactions.
- Build reusable components and packages for future use.
- Translate specs and user stories into reviewable, test covered patches.
- Peer review code and refactor existing code.
- Integrate with our eCommerce partners (Shopify, BigCommerce, Amazon), shipping partners (UPS, USPS, FedEx, DHL) and EDI.
- Manage Kubernetes and Docker based global deployment of our infrastructure.
Requirements
We’re Looking for Someone With:
- Experience working with ORMs like SQLAlchemy or Django (2-3 years)
- Experience with SQL and databases (Postgres preferred)
- Experience in developing large server side applications and microservices
- Ability to create high quality code
- Experience with python testing tools (pytest) and test automation
- Familiarity with code versioning tools like GIT
- Strong sense of ownership and leadership quality
- Experienced in the tools of our web stack- Python, Celery, Postgres, Redis, RabbitMQ
Nice to Haves:
- Prior experience at a growth stage Internet/Software company
- Experience with ReactJS, Google Cloud, Heroku
- Cloud deployment and scaling experience


Job Description:
Candidate must have 2 to 5-years of experience in various phase of development of a python-based application or API development.
Requirements:
Must Have: Strong expertise in PYTHON and its built-in data structures, developing API using flask or fastapi, data wrangling using standard python frameworks like pandas, NumPy etc., integration of various applications (third party or inhouse) with python.
Good to Have: Deployment using Nginx, GUnicorn, IIS, docker and Kubernetes etc. Good understanding of optimization solutions like differential evolution. Hands on experience with python packages like Scipy. Tkinter to make python-based applications.
Roles and Responsibilities:
- Understanding/gathering the requirements from stakeholder, formulating the problem, and leveraging AI/ML to solve the business problems.
- Integration of third party or in house application with python solution.
- Working on Deployment and optimization of various engineering problems using Numerical/Constraint optimization frameworks such as Differential Evolution and deploy a web-based API using Flask and Nginx/IIS.
- Unit testing of various python modules developed and testing of the API.


Responsibilities
- Team Management: Manage, lead and guide a team of backend developers and interns working under you.
- API Development: Designing, developing, and testing APIs for mobile and web applications by understanding technical specification docs & communicating with the stakeholders.
- Product Creation: Understanding the products and proposing and implementing product improvements
- Customer Management: Accurately translate user and business needs into functional backend code.
Requirements
- Fluency in Python
- Ability to lead and set an example
- Experience with FastAPI and/or Flask
- Basics of SQL and NoSQL databases
- A keen eye for improving and optimising code
- Experience with performance and optimization problems and a demonstrated ability to identify and address performance bottlenecks.
- Ability to work in a fast-paced startup environment is a must. Open source contribution is a plus.
Experience
- Backend Development: 2+ years
- Python: 2+ years
- FastAPI / Flask: 1+ year
- SQL / NoSQL databases: 3+ months
Open roles:
All roles are fully remote. You can be anywhere in the world to apply for these positions.

