Senior Full Stack (Part-time 4 hours per day)

  Hi all!
We are looking for a part-time Senior Full Stack Engineer (React.JS and Node.JS) for a development project to join our client, outsourcing/outstaffing company with more than 8 years of experience in web and mobile application development with a team of more than 120 specialists from 6 countries.

📲Project: The project is a cardio platform designed to enhance heart signal data from a medical device and provide doctors with a convenient interface to process cardio health information.

Key features of the platform include:
Infinite charts for cardio graphs;
Processing and rendering large files with efficient FE display in parallel;
Detecting various events on the graphs and visualizing them directly on the charts.

🌎‍ Type of cooperation: remote, part-time 4 hours per day.

👨🏻‍💻 You can be part of the following team:
Client`s side: Product Manager + other stakeholders + the ML team.
On Engineering`s side: 1 Full Stack Developers, 1 QA, 1 PM, 1 DevOps.

Why we have opened this vacancy: Team extension.

🕹Tools we use: Jira, Confluence, Git, Figma

We expect

Sorry, this entry is only available in Українська.

 

• 5+ years of commercial experience in software development with React.js and Node.js;
• Strong backend expertise (Node.js / Nest.js) with solid frontend knowledge (React.js);
• Proficiency in JavaScript/TypeScript, HTML, CSS;
• Experience with PostgreSQL;
• Hands-on experience with AWS services: Cognito, Lambda, DynamoDB, CloudWatch, API Gateway;
• Ability to efficiently display and manage large datasets using React (Virtuoso – will be a plus);
• Experience with dynamic data visualization (ECharts – will be a plus);
• Knowledge of Parquet file querying (DuckDB – will be a plus);
• Familiarity with search engines: ElasticSearch, OpenSearch;
• Experience in leading a small development team and providing technical guidance;
• Upper-Intermediate English level.

Nice to have

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• Experience in direct communication with customers;
• Experience working in startups.

Responsibilities

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• Active participation in Scrum ceremonies – including daily stand-ups, sprint planning, grooming, and demos – ensuring clear communication and alignment with the team.
• Feature development and delivery within agreed timelines, maintaining strong ownership over code quality, testing, and adherence to estimates.
• Technical excellence and reliability – designing and implementing complex features, performing code reviews, and contributing to the platform’s stability and maintainability through clean, efficient solutions.
• Product collaboration – working closely with the Product Manager to clarify requirements, provide technical feedback, and suggest optimizations that improve the product’s functionality and user experience.
• Risk awareness and problem-solving – proactively identifying technical risks or potential blockers, communicating them to the PM early, and contributing to discussions on how to mitigate them.
• Cross-team collaboration – engaging in technical discussions, sharing knowledge, and assisting teammates when needed to keep the delivery flow smooth and consistent.

We offer

Sorry, this entry is only available in Українська.

  Social package and other bonuses:

• Stable and highly-functioning processes – everyone has their own role and clear responsibilities, so decisions are made quickly and without unnecessary approvals.
• We will be happy to pay 50% of the cost of courses/conferences/speaking clubs.
• Do you have a friend who is currently looking for new job opportunities? Recommend them to us and get a bonus.
• The company promotes growth and encourages initiatives.
• A modern stack of technologies, the opportunity to work at a high load, modern equipment, with constant improvements at the request of employees.
• Top management, open to communication with teams.

 

A little more information that you may find useful:

• our adaptation period lasts 3 months, this period of time is enough for us to understand each other better;
• there is a performance review after each year of our collaboration where we use a skills map to track your growth;
• we really have no boundaries in the truest sense of the word – we have a flexible working day;
• we are looking for like-minded professionals who believe in making the world a better place by building technology that’s meant to last and scale.

 

  Vacation and sick leave

• 21 working days off a year;
• 5 sick leaves a year.

Sorry, this entry is only available in Українська.

What are the stages of selection:

• Call, HR, Tech interview, PM interview.