Vacancy: Full Stack Senior developer for BeYoungBrands start-up.
Project description:
We are a small innovative team with a big picture vision.
Our goal - to help people be healthier, younger, happier and to live long and active lives.
We are advocates of holistic approache and inclusion. We believe that the best results are brought by uniting science and ancient wisdom which science cannot explain yet.
Our goal is very challenging – we want to create a one point access tool to manage induvial wellbeing and health (with collaboration platform with doctors) from convenience of home and smartphones.
Our goal if far beyond just teaching how to eat and exercise healthier. We want gradually to transform the way a patient and client talk and communicate about health issues.
Our future network of doctors will include only best medicines embracing the holistic approach to each client, accepting limitation and negative impacts of some modern therapies and willing to accept usage of alternative and holistic therapies by their patients.
Job description.
Role description:
The successful candidate to join our team will be the first architect of our ambitious project. Along with immensely challenging tasks and responsibility he/she will have a joy of being the person to layout the design and develop the initial model of the product.
We are looking for self-starter with already proven experience. The job will have a title of senior developer and an employee will have to deliver to its title. We put great worth on the personality of a candidate and his/her ability to get things done, to deliver results and to quickly update one’s knowledge based on the requirement of a task at hand.
Job description:
3+ years experience
Candidate with experience in both Backend and Frontend technology using Java and Pyphon with JavaScript/Angular/Dijango. Would prefer Full Stack experience in current project.
Internal Title: Senior Developer
Experience Range: Mid Level with proven track record in development
Skill(s): Python, Dijango, JavaSript, AngularJS/ReactJS, NodeJS, MongoDB, ExpressJS
Education:
- Bachelor's in Computer Science (Required)
- Master (preferred)
Job Type: Full-time
Location(s): Remote
Responsibilities
- Design, build, and maintain efficient, reusable, and reliable codes for front and backend development.
- Build a layout for structured system data and regularly feed and update it.
- Conceptualizing and developing the data, programming and analysis for online behavior.
- Building a first draft of AI algorithm.
- Programming machine learning and its applications.
- Design client-side and server-side architecture
- Build the front-end of applications through appealing visual design.
- Develop and manage well-functioning databases and applications.
- Write effective APIs
- Test software to ensure responsiveness and efficiency
- Troubleshoot, debug and upgrade application.
- Create security and data protection settings.
- Build features and applications with a mobile responsive design.
- Write technical documentation.
- Work with data scientists and analysts to improve software
Technical and Professional Requirements
- Minimum 3 years of relevant experience.
- Proven work experience as a Full Stack developer (Any one project would do, we are open for freshers with great knowledge and proven experience too).
- In-depth understanding of the entire web development process (design, development and deployment)
- Strong understanding of data structures / algorithm.
- Excellent coding skill in Node js/Angular/Reactjs, JavaScript, Python, Shell Scripts, Groovy.
- Experience in designing, developing and building end to end web applications.
- Responsive Web Design Development experience
- Experience in web libraries.
- Experience with one or more of databases.
- Experience working with deployment and orchestration technologies.
- Knowledge of Agile engineering and testing practices.
- Must have flexibility in work hours
- Knowledge of API Design and Development and Security Patterns on API’s using API Gateway.
- Familiar with modern reactive frameworks and Event Driven architectural patterns.
- Implementing automated testing platforms and unit tests.
- Good Error and Exceptional Handling Skills.
- Knowledge of Automation scripts.
- Experience in Cloud Technology for Deployment of Services is a plus.
- Analyzing user requirements, envisioning system features and functionality.
- Identify bottlenecks and bugs, and recommend system solutions by comparing advantages and disadvantages of custom development.
- Understand Architecture Requirements and ensure effective Design, Development, Validation, Testing and Performance, monitoring.
- Strong knowledge of front-end languages (e.g. HTML, JavaScript and CSS)
- Very strong Integration knowledge is desired.
- Excellent analytical and time management skills
- Teamwork skills with a problem-solving attitude.
Deliveries plan and personal achievements goal for a
role of Senior developer in BeYoungBrands
- First 3 months at role
- Develop and builds a new multilingual website to reflect main features of the project and backend structure.
- Build initial backend design and architecture.
- Develop personal area zone with automated functions.
- Develop security strategy to protect sensitive client information.
- Start building algorithm on existing processes and activities of a clients. Integarate currently available research into algorithm.
- Be support on daily tasks and automations.
- Propose and replace external resources for automation or selling tools with own development plan.
- Second 3 months at role:
- Continue developing interactive client area.
- Work further on algoright with integrating research database, database of clients actions and reported results.
- Start building mobile application for everyting what is already done in platform.
- Build food extension of the platform and mobile section to it with full food directory database, menu planning, photo recognition, input areas and calories calculations.
- Start building exercise module (possible with 3rd party license to use, to be discussed), with video, calories count, instructions, etc.

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Skills - Python (Pandas, NumPy) and backend frameworks (FastAPI, Flask), ETL processes, LLM, React.js or Angular, JavaScript or TypeScript.
• Strong proficiency in Python, with experience in data manipulation libraries (e.g., Pandas,
NumPy) and backend frameworks (e.g., FastAPI, Flask).
• Hands-on experience with data engineering and analytics, including data pipelines, ETL
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• Understanding of React.js/ Angular, JavaScript/TypeScript for building responsive user
interfaces.
• Familiarity with AI/ML concepts and eagerness to grow into a deeper AI-focused role.
• Ability to work in cross-functional teams and adapt quickly to evolving technologies.
About the Role
We are looking for a highly skilled and experienced Full Stack Software Development Engineer to join our team focused on building and enhancing an Agentic AI Framework. You will be instrumental in developing scalable, reliable, and intelligent AI-based systems, contributing across the stack—from front-end interfaces to back-end infrastructure, and cloud deployment pipelines.
This is a dynamic and forward-thinking role, perfect for developers passionate about AI/ML advancements and keen to continuously grow in the evolving landscape of software engineering.
Key Responsibilities
- Design, develop, and maintain scalable and responsive front-end and back-end components of the Agentic AI Framework.
- Implement RESTful and GraphQL APIs for seamless integration across services.
- Optimize performance and ensure high availability across distributed systems.
- Collaborate with cross-functional teams including AI/ML engineers, data scientists, and DevOps.
- Write clean, maintainable, and testable code.
- Contribute to architecture discussions, code reviews, and project planning.
- Keep up-to-date with advancements in AI/ML algorithms, frameworks, and data science practices.
- Act as a primary point of contact for L3/L4 production support, including:
o Debugging and resolving live issues
o Delivering hot patches and quick fixes
o Managing emergency and planned production releases
· Own and operate the release lifecycle including version control, deployment, rollback strategies, and documentation
- Support deployment, monitoring, and scaling efforts using DevOps and cloud infrastructure.
Required Skills
- Front-end: React.js, TypeScript, HTML5, CSS3, Redux, Tailwind or Material UI
- Back-end: Java, Kotlin, Spring Boot, Node.js
- Databases: PostgreSQL, Redis, MongoDB, MySQL
- Architecture: Microservices, API Gateways, Event-driven architecture
- DevOps (Preferred): Docker, Kubernetes, CI/CD (e.g., Jenkins, GitHub Actions), AWS/GCP/Azure
- Testing: JUnit, Jest, Selenium, Postman
- Strong understanding of design patterns, data structures, and algorithms
- Familiarity or keen interest in AI/ML, LLMs, data science tools, and workflows
Nice to Have
- Experience with observability tools (Grafana, Prometheus, ELK stack)
- Japanese language proficiency (not mandatory, but a plus)
Who You Are
- A problem-solver with a proactive mindset
- Able to adapt quickly to new technologies and challenges
- Comfortable working in a fast-paced, innovative environment
- Collaborative with excellent communication skills
Perks & Benefits
- Learning support for AI/ML upskilling
- International and diverse team culture
Work on cutting-edge AI-driven products
Looking for a 5+ years experienced Senior Full-stack Engineer (Backend Heavy) for a research-focused, product-based, US-based Startup.
AI Assistant for Research using state-of-the-art language models (AI Agent for Academic Research)
At SciSpace, we're using language models to automate and streamline research workflows from start to finish. And the best part? We're
already making waves in the industry, with a whopping 5 million users
on board as of November 2025! Our users love us too, with a 40%
MOM retention rate and 10% of them using our app more than once
a week! We're growing by more than 50% every month, all thanks to
our awesome users spreading the word (see it yourself on Twitter). Andwith almost weekly feature launches since our inception, we're
constantly pushing the boundaries of what's possible. Our team of
experts in design, frontend, fullstack engineering, and machine learning
are already in place, but we're always on the lookout for new talent to help us take things to the next level. Our user base is super engaged and always eager to provide feedback, making Scispace one of the most advanced applications of language models out there.
We are looking for insatiably curious, always learning SDE 2 Fullstack Engineers. You could get a chance to work on the most important and challenging problems at scale.
Responsibilities:
* Work in managing products as part of SciSpace product suite.
* Partner with product owners in designing software that becomes part of researchers’ lives
* Model real-world scenarios into code that can build the SciSpace platform
* Test code that you write and continuously improve practices at SciSpace
* Arrive at technology decisions after extensive debates with other engineers
* Manage large projects from conceptualisation, all the way through deployments
* Evolve an ecosystem of tools and libraries that make it possible for SciSpace to provide reliable, always-on, performant services to our users
* Partner with other engineers in developing an architecture that is resilient to changes in product requirements and usage
* Work on the user-interface side and deliver a snappy, enjoyable experience to your users
Our Ideal Candidate would:
* Strong grasp of one high-level language like Python, JavaScript, etc.
* Strong grasp of front-end HTML/CSS, non-trivial browser-side JavaScript
* General awareness of SQL and database design concepts
* Solid understanding of testing fundamentals
* Strong communication skills
* Should have prior experience in managing and executing technology products.
Bonus:
* Prior experience working with high-volume, always-available web applications
* Experience in ElasticSearch.
* Experience in distributed systems.
* Experience working with a Start-up is a plus point.
Job Overview:
We are seeking a skilled Senior Python Full Stack Developer with a strong background in application architecture and design. The ideal candidate will be proficient in Python, with extensive experience in web frameworks such as Django or Flask along with front-end technologies- React, JavaScript. You'll play a key role in designing scalable applications, collaborating with cross-functional teams, and leveraging cloud technologies.
Key Responsibilities:
- Backend Development:
- - Architect, develop, and maintain high-performance backend systems using Python or Golang.
- - Build and optimize APIs and microservices that power innovative, user-focused features.
- - Implement security and data protection measures that are scalable from day one.
- - Collaborate closely with DevOps to deploy and manage applications seamlessly in dynamic cloud environments.
- Frontend Development:
- - Work hand-in-hand with front-end developers to integrate and harmonize backend systems with React-based applications.
- - Contribute to the UI/UX design process, ensuring an intuitive, frictionless user experience that aligns with the startup’s vision.
- - Continuously optimize web applications to ensure they are fast, responsive, and scalable as the user base grows.
Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field.
- 7+ years of experience in backend development, with proficiency in Python and/or Golang.
- Strong experience in front-end technologies, particularly React.
- Familiarity with cloud platforms (AWS, GCP, or Azure) and containerization tools like Docker and Kubernetes.
- Knowledge of Apache Spark is highly preferred.
- Solid understanding of database technologies, both relational (e.g., PostgreSQL, MySQL) and NoSQL (e.g., MongoDB, Cassandra).
- Experience with CI/CD pipelines and automated testing frameworks.
- Excellent problem-solving skills and a proactive attitude toward tackling challenges

What can you expect?
You will be part of the founding team at LDU and will be responsible for the end-to-end technology of the company including:
- Work with the founders on cutting edge technologies, including AI/ML, blockchain, computer vision, etc. across the tech-stack.
- Formulate long-term technology & product strategy along with implementation roadmap, while envisioning the tech-stack
required to scale the business 100X
- Architecting and engineering solutions across the entire technology stack including front-end, back-end, infrastructure,
architecture, server-side engineering, UI, etc. in line with the company's strategy.
- Work on the D2C website and enhance the user experience while increasing the company's online presence.
- Provide help to everyone in the team and greatly reduce the time and technical costs of team communication, technology
docking.
- Plan and collaborate with the other teams including marketing/ growth, customer success/ sales, design, operations, etc. to
implement new product features, growth hacks/ initiatives identified through user interviews/ insights, etc in a timely manner.
- Will be involved in a horizontal technical requirement, so should be able to make a prototype design for a product very rapidly
while executing the same with a wide range of techniques.
- Build processes/mechanisms to track the KPIs across product/ technology and ensure religious execution of the targets
- Build and lead the technology team including the engineering team, product team, Quality Assurance, etc.
- Awesome work-culture (flexible work timings; no need to wear formals; awesome snacks to name a few)
What are we looking for?
We are looking to onboard a Full Stack Software Engineer, who has a founder's mindset including the following traits:
- Experience of full stack development across web & mobile based technologies and should have scaled a business
- Ability to work across stacks like MEAN, MERN, LAMP, etc. seamlessly
- Ability to build scalable products/ platforms, fully redundant fault tolerant infrastructure while working on modern technologies.
- Versatile Developer/Engineer that can help on both ends of the website development and better the same by enhancing user
experience.
- Ability to Code in both frontend and backend of the site
- Stronghold in both front-end & back-end development/ algorithms with experience of building agile, highly scalable, data-driven
platforms from scratch
- Ability to be hands-on with coding across big data, mobile apps, AI & ML, analytics, DevOps, business intelligent solutions, etc.
apart from strategically guiding/ mentoring the team
- Stronghold in executing stuff on the ground and hustle around to Get things done
- Ability to think and see the big picture while focusing on short term goals and deliverables
- Leadership qualities to hire and build a kick-ass technology/ product team going forward
- Experience as a founder/ being part of founding team is huge plus but not mandatory
- Experience in the Fashion/ Apparel industry is a plus but not mandatory
We are looking for a FULL-TIME OFFICE POSITION Java Developer (2-3 years experience) who is proficient with coding and can design, develop, test, and implement Java applications and resolve technical issues.
As a Java Developer, we are looking for a highly skilled candidate, who will be responsible for building great web applications in Java, analyzing business objectives and user requirements, suggesting necessary changes for the existing Java applications, compiling detailed technical documentation, and determining application functionalities and features.
Do you think you fit this description well? Then apply now!
Expected Responsibilities
- Understanding the business requirements
- Designing and developing the front end for customer-facing applications using the MVC framework
- Creating RESTful APIs for the front-end developers with and with ORM or raw query for any Database technologies like MySQL or MongoDB
- Creating self-contained, reusable, and testable modules and components
- Ensuring a clear dependency chain regarding the app logic as well as the file system
- Supporting continuous improvement by investigating alternatives and technologies and presenting these for architectural review
- Writing non-blocking code and resorting to advanced techniques, such as multi-threading, when required
Required Skills And Qualifications
- MCA/BTech degree in Computer Science, Engineering, or a related subject
- Thorough understanding of the responsibilities of the platform, database, API, caching layer, proxies, and other web services used in the system
- Experience with Docker or any other containerization tools
- Growth mindset and a positive and collaborative attitude
- Professional, precise communication skills
- Fluency in English, both written and spoken
Must-Haves
- At least 2-3 years of experience as a Java Developer
- Experience with Amazon Web Services (S3, Lambda, Elastic Beanstalk, and other AWS modules)
- Hands-on experience in Core Java, Spring Boot, and Spring framework (Embedded Tomcat), REST API skills
- Deep understanding of Java, servlets in J2EE, web-based request handling with Microservices architecture
- Experience with JavaScript-based front-end frameworks like Angular JS or React JS
- Good understanding of Design Patterns, Data structures, and Algorithms
- Exposure to Agile principles and methodologies, including Continuous Integration and Test Driven Development
- Comprehensive knowledge of OO design principles and development patterns
- Java Batch Scheduling (e.g., Flux, Quartz) knowledge
- Previous experience working with clean code, SOLID principles, TDD
A Little About Who We Are
Klizo Solutions, founded by Joseph Ricard, is an IT company that develops outstanding applications and techs in an enterprise environment, located near CC2 in the New Town Area, Kolkata.
But it isn’t the first brainchild of our founder, as he also has multiple start-ups to his credit, including one of the largest music apps in the Philippines and Italy and a first-of-its-kind Cannabis Vending Machine.
So, naturally, being a part of a company founded and run by such a visionary tech leader and a serial entrepreneur, our employees always have ample opportunities to learn and grow as the company evolves.
Currently, our big happy Klizo family consists of 50+ employees. But we want to extend the happiness of working and collaborating with talented individuals even further. And by this, we mean we will hire more talents over the next few weeks!
Perks Of Being A Klizonian
- Training will be provided (if required)
- 5-day working in a week
- On-time salary every month
- Cool and approachable management
- Numerous opportunities for growth
Job Type: Full Time
• Experience in leading a software team and managing software delivery project.
• Strong experience in Python development in a full stack environment is a requirement, including React or Vuejs, NodeJS, Flask
• Strong Hands-on with VueJS/Vuex, JavaScript, React, Angular
• Experience with SQLAchemy or similar ORM frameworks
• Experience working with mapping APIs (e.g., Google Maps, Mapbox)
• Experience using Elasticsearch and docker environment is a plus
• Strong knowledge of SQL, comfortable working with MySQL and/or PostgreSQL databases
• Understands concepts of Data Modeling
• Experience with REST.
• Experience with Git, GitFlow, code review process
• Good understand with basic UI and UX principles
• Must enjoy problem solving and have excellent communication skills
WHAT WE'RE LOOKING FOR
- Bachelors or master’s in software engineering, Computer Science or other relevant disciplines
- 5+ years experience as a Back-End or Full Stack Developer with hands-on experience working with Python with 3+ years Preferably with AWS Services knowledge (Lambda, API Gateway, CloudWatch, Queues, Topics, etc)
- Strong Knowledge in Python v3.x Language
- Experience in REST APIs with JSON
- Error handling and Logging
- Any DB knowledge
- Knowledge in Node.js is an added advantage
- Knowledge in implementing Terraform is a plus
- Knowledge on Sumo Logic log aggregation is a plus
- Must know how to produce high quality, “Clean” code that is performant, maintainable and secure








