Senior Software Engineer (React.Js)

We’re reimagining how users interact with SaaS products and looking for a founding engineer to help build the first version from zero alongside a founder with experience building at HubSpot, Asana, and Datadog.

Role

We are hiring a Founding Engineer with strong frontend, product, and design instincts. You will work directly with the founder to shape the product, prototype quickly, make architecture decisions, think through user problems, and turn an early thesis into a working product.

The ideal person is a builder — someone who can move from an ambiguous idea to prototype, from prototype to usable product, and from usable product to scalable architecture. You should be excited by the opportunity to change how users interact with software and, eventually, the internet itself.

What You’ll Build

You will help build the first version of our core product, including:

• An SDK powered by frontier AI models and modern product experience protocols
• Backend services with rules, resolution logic and intent inference
• Early prototypes that help us test different wedges with customers
• Production-ready systems as the product direction becomes clearer

This role will likely span React, TypeScript, Next.js, backend APIs, databases, event tracking, and AI-assisted workflows.

Required Experience

• 2–5 years of software engineering experience, or equivalent demonstrated ability
• Strong frontend engineering experience with React and TypeScript
• Ability to design clean, scalable frontend component architecture
• Experience with backend APIs and databases
• Experience taking ambiguous product ideas and turning them into working software

Strong Plus

• Experience building 0-to-1 products
• Experience at an early-stage startup
• Experience building SaaS products

What Success Looks Like

In the first 30 days, you will:

• Understand our thesis, target customer, and product direction
• Help refine the first product wedge
• Build and iterate on early prototypes
• Set up core frontend and backend foundations
• Move quickly across product, design, and engineering decisions

In the first 60–90 days, you will:

• Ship the first usable product prototype
• Help build demo experiences that clearly communicate the product vision
• Create the first version of the adaptive frontend architecture
• Help test the product with early users, customers, or design partners
• Identify what should become production-grade versus what should remain experimental

Leadership Opportunity

This is a founding role with significant upside.

For the right person, strong performance can lead to a leadership position as the company grows. We are looking for someone who can become a long-term technical and product partner — someone who can help build the first version, shape the architecture, hire future engineers, and potentially lead major parts of the engineering organization.

This is an opportunity to join at the earliest stage and help define both the product and the company.

Why Join

• Build from zero with high ownership
• Work directly with the founder
• Help create a new category of software
• Own meaningful technical decisions from day one
• Opportunity to join the leadership team as the company scales

About Us

We are building the next generation of AI-powered products and platforms that redefine how businesses digitize, automate, and scale. Our flagship solutions span eCommerce, financial services, and enterprise automation, with an emerging focus on commercializing cutting-edge AI services across Grok, OpenAI, and the Azure Cloud ecosystem.

Role Overview

We are seeking a highly skilled Full-Stack Developer with a strong foundation in e-commerce product development and deep expertise in backend engineering using Python. The ideal candidate is passionate about designing scalable systems, has hands-on experience with cloud-native architectures, and is eager to drive the commercialization of AI-driven services and platforms.

Key Responsibilities

• Design, build, and scale full-stack applications with a strong emphasis on backend services (Python, Django/FastAPI/Flask).
• Lead development of eCommerce features including product catalogs, payments, order management, and personalized customer experiences.
• Integrate and operationalize AI services across Grok, OpenAI APIs, and Azure AI services to deliver intelligent workflows and user experiences.
• Build and maintain secure, scalable APIs and data pipelines for real-time analytics and automation.
• Collaborate with product, design, and AI research teams to bring experimental features into production.
• Ensure systems are cloud-ready (Azure preferred) with CI/CD, containerization (Docker/Kubernetes), and strong monitoring practices.
• Contribute to frontend development (React, Angular, or Vue) to deliver seamless, responsive, and intuitive user experiences.
• Champion best practices in coding, testing, DevOps, and Responsible AI integration.

Required Skills & Experience

• 5+ years of professional full-stack development experience.
• Proven track record in eCommerce product development (payments, cart, checkout, multi-tenant stores).
• Strong backend expertise in Python (Django, FastAPI, Flask).
• Experience with cloud services (Azure preferred; AWS/GCP is a plus).
• Hands-on with AI/ML integration using APIs like OpenAI, Grok, Azure Cognitive Services.
• Solid understanding of databases (SQL & NoSQL), caching, and API design.
• Familiarity with frontend frameworks such as React, Angular, or Vue.
• Experience with DevOps practices: GitHub/GitLab, CI/CD, Docker, Kubernetes.
• Strong problem-solving skills, adaptability, and a product-first mindset.

Nice to Have

• Knowledge of vector databases, RAG pipelines, and LLM fine-tuning.
• Experience in scalable SaaS architectures and subscription platforms.
• Familiarity with C2PA, identity security, or compliance-driven development.

What We Offer

• Opportunity to shape the commercialization of AI-driven products in fast-growing markets.
• A high-impact role with autonomy and visibility.
• Competitive compensation, equity opportunities, and growth into leadership roles.
• Collaborative environment working with seasoned entrepreneurs, AI researchers, and cloud architects.

Dear Candidate,

We are urgently Hiring Java Full stack Leads with React for Bangalore Location.

Position: Technical/Project Lead

Location: Bangalore, Hyderabad

Experience:7-10 yrs

Skills: J2EE/Core java , React

Salary: Best in Industry (20-25% Hike on the current ctc)

Note:

only Immediate to 15 days Joiners will be preferred.

Candidates from Tier 1 companies will only be shortlisted and selected

Candidates' NP more than 30 days will get rejected while screening.

Offer shoppers will be rejected.

Best Regards,

Minakshi Soni

Executive - Talent Acquisition (L2)

Rigel Networks

Worldwide Locations: USA | HK | IN 

Vacancy: Full Stack Senior developer for BeYoungBrands start-up - Paris.

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 approach 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 a collaboration platform with doctors) from the 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 the usage of alternative and holistic therapies by their patients.   

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 joy of being the person to layout the design and develop the initial model of the product.

We are looking for a 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 of experience

Candidate with experience in both Backend and Frontend technology using Java and Python with JavaScript/Angular/Django. Would prefer Full Stack experience in the current project.

Internal Title: Senior Developer

Experience Range: Mid Level with a proven track record in the development

Skill(s): Python, Django, JavaScript, 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 behaviour.
• Building a first draft of the 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 (Anyone 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

1. First 3 months at the role
   1. Develop and builds a new multilingual website to reflect the main features of the project and backend structure.
   2. Build initial backend design and architecture.
   3. Develop personal area zone with automated functions.
   4. Develop security strategy to protect sensitive client information.
   5. Start building algorithm on existing processes and activities of a clients. Integarate currently available research into algorithm.
   6. Be support on daily tasks and automations.
   7. Propose and replace external resources for automation or selling tools with own development plan.
2. Second 3 months at role:
   1. Continue developing interactive client area.
   2. Work further on algoright with integrating research database, database of clients actions and reported results.
   3. Start building mobile application for everyting what is already done in platform.
   4. 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.
   5. Start building exercise module (possible with 3^rd party license to use, to be discussed), with video, calories count, instructions, etc.

Roles and Responsibilities:

• Developing new user-facing features using React.js
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Experience with RESTful APIs
• Troubleshooting interface software and debugging application codes.
• Create database schemas that represent and support business processes.
• Implement automated testing platforms and unit tests.
• Optimize application for performance and speed.
• Implementation of security and data protection.
• Provide technical support to users.

Skills:

• At least 5 years of experience as a Java Developer or similar role
• Strong expertise in Java programming language and working Knowledge on Back-end technologies such as Spring/Spring Boot.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Familiarity with database technology such as MySQL, MongoDB.
• Good knowledge of Unit Testing.
• Experience with at least one of the Cloud Services such as AWS, GCP, Azure are plus.
• Familiarity with SCRUM methodologies
• Strong organizational and project management skills.
• Excellent verbal communication skills.
• Analytical and logical skills
• Good problem-solving skills.

Qualification:

• 3-4 years of experience working as a ReactJS Developer or in a similar role.

What we offer:

• Flexible working hours
• Up to 12 Lakh insurance
• Work life balance

• Strong experience require in C# coding & Concepts & Threads

• Strong Experience require in SqlServer & MySql & Sqllite

• Experience required in ASP.NET MVC & ASP.NET

• Expericend required in Restful services using WCF & WEB API

• Strong experience using Entity Framework (Edmx,code first)

.        Experience require in ADO.NET

• Familiarity with the client side framework  jQuery & Javacsript & Reactjs

.        Familiarity with HTML & CSS

• Familiarity  with Git Repositories

.        Familiarity with Microsoft Azure

.        Having knowledge in Xamarin.Forms will be added advantage

We are looking for a highly skilled full-stack developer, who will be responsible for designing and developing front end web architecture, ensuring the responsiveness of applications, and working alongside the product owner, architects, analysts and designers for web services and web design features, among other duties

We Need a Driven Individual Who Can

• Design, develop, deploy in-premise products as well as robust, scalable cloud components for multi-tenant SaaS products
• Open to explore, adapt and apply multiple technologies
• Maintain attention to detail while working in a fast-paced environment
• Think creatively and justify design and code decisions
• Passionate about learning and experimenting with new cutting-edge technologies
• Ability to lead change and hands-on approach

Qualifications

• Experience in developing web applications and user interfaces
• Architecting solutions using ReactJS 
• Proficiency with NodeJS is a plus
• Proficiency with cloud services from AWS and Lambda functions is a plus
• Familiarity with tools like WebPack, Babel, Jest, Cypress, ESLint, and NPM/Yarn
• Strong grasp of data structures and algorithm design

What We Have To Offer

• Work with a performance-oriented team driven by ownership and open to experiments.
• Learn to design systems for high accuracy, efficiency, and scalability.
• No strict deadlines focus on delivering quality work.
• Meritocracy-driven, candid culture. No politics.
• Being an early hire will come with its own opportunities to hack your growth

About Company:

Technical Skills : Node.js, Restful, Express, React.js, Redux, MongoDb

• Previous working experience as a MEAN/MERN Stack Developer for at least 2 years.
• In depth knowledge of React.js, Angular.js, NodeJS, ExpressJS.
• Experience implementing applications using React.js and Angular.js.
• Experience creating front end applications using HTML, React and Angular.
• Hands on experience with JavaScript Development on both client and server-side

Preferred Qualifications & Desired Competencies:

• Can-do attitude and bring a go-getter
• Ability to learn new technologies quickly.
• Self-motivated, results-driven individual and passionate about work.
• Excellent communication skills and problem solving skills

• 12 to 16 years of experience in enterprise level software architecture, design, development (architecture, design patterns, reliability and scaling) of new and current systems
• Experienced in Full Stack product development
• Bachelor’s Degree in computer science or a related field
• Computer Science fundamentals in data structures, algorithm design and problem solving.
• Extensive knowledge and deep understanding of Java and related technologies
• Experience with modern software development methodologies: Agile/Kanban, CI/CD, DevOps, etc.
• Proficiency in Full Stack product development
• Proficiency with Java is essential.
• Proficiency with React, TypeScript, JavaScript, HTML CSS is essential
• Proficient with REST APIs
• Proficient with product development experience on both front end and back end
• Experience with AWS and/or other public cloud technologies.
• Database Experience (query optimization, index generation, caching) or NoSQL DBs a plus

Preferred Qualifications: