Backend/Fullstack Developer

We are looking for, Java Full stack Developer / Java Developer

Relevant Experience (In years):4+

Job Location: Mumbai

Skill: Java 8+, Spring Boot, Spring, Junit, MySQL, JSP, Servlet, JPA/Hibernate, REST Web service, SOAP web service, JQuery, Ajax, HTML, JS, JSON.

Role Category: Software Development

Education: BE / BTech in Any Specialization, MCA, BSC (IT)

Desired Competencies (Technical / Behavioral Competency)

Has experience working on Frontend technologies CSS, HTML, and JavaScript / JQuery

Hands-on experience of MYSQL Database.

Good verbal and written communication and collaboration skills to effectively communicate with both business and technical teams.

Comfortable working in a fast-paced, result-oriented environment.

Able to understand the requirement quickly and efficiently, should be able to work independently.

Significant Java Programming experience (in J2EE).

Prefer to have experience work with Agile Sprint and Scrum methodology.

Should be able to understand the requirements clearly and document the same whenever required.

Able to write reusable and scalable components and to build product aligned to platform architecture.

Follow coding guidelines and write efficient code.

Perform unit testing and preparation of unit test cases effectively.

Explore new technologies and carryout POCs

Willingness to explore and innovate new ideas with team members and appreciate individual inputs/ strengths

Good communication skills.

To support product and team with positive attitude and full dedication.

Full Stack Engineer – Spacetil

About Spacetil

Spacetil is a modern financial operations and accounting automation platform that helps businesses streamline bookkeeping, banking integrations, transaction processing, reconciliations, and financial reporting. We are building scalable products that simplify complex financial workflows for customers across multiple geographies.

Role Overview

We are looking for a passionate Full Stack Engineer (1–3 years experience) to join our product engineering team. You will work across the entire technology stack to design, build, and maintain scalable web applications and backend services. This role offers the opportunity to contribute directly to product development, collaborate with cross-functional teams, and solve real-world business challenges.

Responsibilities

• Develop and maintain scalable web applications using modern frontend and backend technologies.
• Design and implement RESTful APIs and backend services.
• Build responsive and intuitive user interfaces using React.js and Tailwind CSS.
• Develop robust server-side applications using Java and Python.
• Write efficient SQL queries and optimize database performance.
• Collaborate with product managers, designers, and fellow engineers to deliver high-quality features.
• Participate in code reviews and contribute to engineering best practices.
• Troubleshoot, debug, and resolve production issues.
• Continuously improve application performance, security, and reliability.

Required Skills

• 1–3 years of experience in full-stack software development.
• Strong proficiency in Java and/or Python.
• Experience with React.js and modern frontend development.
• Good understanding of SQL and relational databases.
• Experience with Tailwind CSS for responsive UI development.
• Understanding of REST APIs, authentication, and web application architecture.
• Familiarity with Git and collaborative development workflows.
• Strong problem-solving and analytical skills.

Preferred Qualifications

• Experience with Spring Boot, PostgreSQL, or similar frameworks/databases.
• Exposure to cloud platforms (AWS, Azure).
• Knowledge of CI/CD pipelines and DevOps practices.
• Experience working with financial, accounting, or fintech products is a plus.

What We Offer

• Opportunity to work on a fast-growing fintech platform.
• Flexible remote-first work environment.
• Ownership of impactful projects and features.
• Collaborative and learning-focused engineering culture.
• Competitive compensation and career growth opportunities.

Location: Remote

Experience: 1–3 Years

Employment Type: Full-Time / Contractual

Skills: Java, Python, SQL, React.js, Tailwind CSS

Join Spacetil and help build the next generation of financial automation solutions.

Role Overview

We are looking for an Engineering Manager who thrives in a fast-paced startup environment, is hands-on with development, and can lead our engineering team to build and scale robust, high-performing systems. You will drive architectural decisions, mentor a team of talented engineers, and collaborate closely with product, design, and business teams to execute our ambitious roadmap. You will be at the forefront of scaling our infrastructure to support billions of messages, ensuring real-time engagement for businesses at scale.

Key Responsibilities

• Technical Leadership: Own the engineering roadmap, ensuring scalability, reliability, and performance of our systems.
• Hands-on Development: Dive into the code when necessary, set high coding standards, and lead by example.
• Team Management: Lead, mentor, and scale a high-performing engineering team, fostering a strong culture of ownership and innovation.
• System Scalability: Architect and optimize scalable and resilient backend & frontend systems handling millions of messages per day.
• High Availability & Performance: Design systems that can handle billions of API calls and ensure minimal downtime.
• Agile Execution: Drive sprint planning, prioritization, and timely delivery of features in an agile development environment.
• Collaboration: Work closely with product, design, and business teams to align engineering efforts with company goals.
• DevOps & Security: Ensure best practices for CI/CD, cloud infrastructure (AWS/GCP), and security compliance.
• Tech Stack Evolution: Stay ahead of emerging technologies and drive innovation in AiSensy’s architecture.

What You Bring

• 8+ years of experience in software development, with at least 2 years in a leadership/managerial role.
• Expertise in modern tech stacks – Proficiency in MERN (MongoDB, Express, React, Node.js) stack or similar.
• Strong knowledge of cloud platforms (AWS) and microservices architecture.
• Proven experience in scaling high-traffic, distributed systems handling billions of messages per month.
• Hands-on experience with Docker, Kubernetes, and CI/CD pipelines.
• Strong problem-solving skills and an ability to hustle in a fast-paced startup environment.
• Excellent communication skills and a data-driven decision-making approach.
• Passion for building great products, coaching engineers, and driving tech excellence.

What We Offer

• Competitive Compensation & Benefits aligned with your experience and the impact you bring.
• Opportunity for Growth in a rapidly expanding B2B SaaS company.
• Cutting-Edge Technology & Projects in the WhatsApp Business API and Click to WhatsApp Ads space.
• Collaborative Work Environment that fosters innovation, learning, and career development.
• Flexible & Inclusive Culture, where every team member has a voice and the chance to make a significant impact.

We are building VYXN.AI — a full AI content generation platform with a web application, Templates, Workflow / Space, dynamic credits/coins pricing, AI provider integrations, Telegram bot and Telegram Mini App.

The final goal is not a small prototype. The product should be built in clear stages:

1. Technical Foundation

2. First usable product release

3. Full commercial launch scope

The first stage should focus on building a stable technical base, not an over-engineered enterprise system.

Core product areas:

- Web AI content generation platform

- Text module with selectable AI text models

- Image / Design generation via external AI APIs

- Video generation via external AI APIs

- Templates section with visual examples, prompts and user photo upload

- Dynamic credits / coins pricing based on provider, model, quality, duration and generation parameters

- Generation history

- User dashboard

- Admin panel

- AI provider integration layer

- Basic working version of Workflow / Space with node-based UI

- Telegram bot

- Telegram Mini App

- Customer support bot

- Multilingual support

Important:

The platform should be built using existing AI APIs and providers, not by training custom AI models at the first stage.

We are looking for a Senior Full-Stack Developer / Tech Lead who can write code, structure the project technically, and help define the right staged development plan.

Responsibilities:

- Review the full project brief and propose a practical implementation plan

- Build or lead the core web application

- Implement frontend and backend logic

- Integrate external AI generation APIs

- Build user dashboard, admin panel, generation history and credits/coins logic

- Set up database, storage, deployment and basic monitoring

- Help structure AI provider integrations and dynamic pricing

- Help define Workflow / Space architecture

- Help define Telegram bot / Mini App integration approach

- Work with UI/UX designer, Telegram developer, workflow/frontend developer or other specialists if needed

Required skills:

- React.js / Next.js

- TypeScript

- Node.js

- PostgreSQL

- API integrations

- SaaS or web platform experience

- Backend architecture understanding

- Ability to work independently and communicate clearly

- Comfortable with fixed milestones and clear acceptance criteria

Nice to have:

- Redis / BullMQ / queues

- AI API integrations

- Image or video generation API experience

- React Flow or node-based workflow UI experience

- AWS / GCP / Cloudflare / S3-compatible storage

- Telegram Bot / Telegram Mini App experience

- Dynamic pricing, wallet, credits or usage-based billing experience

- Admin panels and support tools

Project format:

- Remote

- Contract or full-time possible

- Fixed milestones preferred for the first stages

- Code must be developed in our GitHub repository

- Deployment should be done through project-owned accounts

- Long-term cooperation possible if the first stage goes well

We are not looking for a large agency. We prefer a strong individual developer or a compact team that can move fast, communicate clearly and build a practical commercial product in stages.

Minimum of 6 years of experience in software development. Proficiency in developing declarative and component-based SPAs using Vue.js. Experience with front-end technologies such as HTML, CSS, JavaScript, and TypeScript. Expertise in Vue.js, including Vuex for state management and Vue Router for navigation. Strong understanding of Java and experience with Spring Boot framework. Knowledge of RESTful APIs and microservices architecture. Knowledge of Spring Security framework for implementing authentication and authorization in Spring-based applications. Experience with Keycloak and access management solutions for securing web applications. Understanding of OAuth and OpenID Connect protocols for single sign-on (SSO) authentication. Ability to integrate and configure Keycloak with Spring Boot applications to manage user authentication and authorization. Experience with JSON Web Tokens (JWT) for secure transmission of authentication data between client and server. Bachelor's degree in Computer Science, Engineering, or related field.

1. Rails 6 or 7
2. Writing integration tests And Mini-Test or rSpec
3. Simple_form and nested attributes
4. Hotwire / Turbo
5. ActionText

1. Administrate
2. Devise
3. Pundit
4. Acts as Tenant

• demonstrates a growth mindset, seeks feedback often and is effective in continuous personal and professional development
• provides expertise in all phases of the development lifecycle from concept and design to testing
• defines the architecture, best practices and coding standards for the product development team
• supports continuous technical improvement by investigating alternatives and technologies and presenting these for architectural review
• motivates team members and extends goodwill to other employees while having fun!

• 2+ years of software industry experience
• Strong Expertise in JS, PHP, React, Node, Angular2+, MySQL, PostgreSQL
• Solid understanding of software design, development, testing, and problem-solving
• Expertise in coding efficient, high quality and modularized software
• Experience in developing Web services - Rest/Soap APIs/HTTP API - Microservices
• Experience setting up and managing servers. Devops experience is a big plus
• Strong exposure on Database like RDBMS - Postgres DB / NoSQL DB like DynamoDB, Elasticsearch
• Experience in Cloud / Storage like Amazon (AWS) - EC2/EBS/S3
• Expertise in test automation
• Familiarity with Unix shell and source control systems and tools such as git
• Strong technical leadership skills
• Comfortable collaborating with designers, front-end developers and other team members
• Strong communication skills
• Technical Coaching and mentoring skills
• Understanding of machine learning, natural language processing is a plus