Fullstack Developer

About the company:

Aptroid Consulting (India) Pvt Ltd is a Web Development company focused on helping marketers transforms the customer experience increasing engagement and driving revenue, customer data to inform and drive it in every interaction in real time and with each individual behavior possibly.

About the Role:

We’re looking for a Senior Java & PHP Developer to join our backend engineering team that powers high-throughput, large-scale SaaS platforms — delivering billions of personalized communications and marketing events every month. You’ll work on mission-critical services that drive automation, data intelligence, and real-time campaign delivery across global clients. You’ll play a key role in designing scalable APIs, improving platform performance, and mentoring developers — while working closely with distributed teams aligned to US (EST) time zones. 

Key Responsibilities:

• Architect, design, and develop scalable backend services using Java (Spring Boot, Microservices) and PHP (Laravel/Symfony/custom frameworks).
• Lead system design and architecture reviews, ensuring clean code, maintainability, and adherence to best practices.
• Drive API integrations, microservices deployment, and modernization of legacy components.
• Collaborate with product managers, DevOps, and data engineering teams to deliver high impact features and performance improvements.
• Build, maintain, and monitor data-intensive systems that handle large message/event volumes with high reliability.
• Implement strong observability practices (metrics, tracing, alerting) and contribute to production incident reviews.
• Perform code reviews, mentor junior engineers, and advocate engineering excellence.
• Work collaboratively across global teams during EST business hours for sprint planning, releases, and incident response.

Required Qualifications:

• 6–9 years of professional backend development experience.
• Expert in Java (Spring Boot, REST APIs, concurrency, JVM tuning) and PHP (Laravel/Symfony, Composer, PSR standards)
• Strong experience with MySQL / PostgreSQL, Redis, and NoSQL systems. • Familiarity with AWS services (S3, Lambda, ECS/EKS, CloudWatch) and CI/CD pipelines (Jenkins, GitLab, GitHub Actions).
• Hands-on experience in scalable, distributed architectures and performance optimization.
• Strong debugging, profiling, and system performance tuning capabilities.
• Proven ability to deliver reliable, secure, and production-ready code in fast-paced agile environments.
• Excellent communication skills; able to coordinate with global teams across time zones.

Preferred Skills:

• Exposure to Kafka, RabbitMQ, or other event-driven systems.
• Familiarity with containerization (Docker) and orchestration (Kubernetes).
• Experience integrating with third-party APIs and external SDKs.
• Prior experience in AdTech, Martech, or high-volume SaaS platforms (similar to Sailthru/Zeta Global ecosystem).
• Knowledge of Python/Go for cross-service utilities or internal tooling is a plus.

What We Offer:

• Opportunity to work on high-scale enterprise systems with real-world impact.
• Exposure to global engineering practices and advanced cloud architectures.
• Collaborative culture with technical ownership and innovation freedom.
• Competitive compensation aligned with experience and global standards.

Job Title: Senior Java Developer

Location: Mumbai (On-site)

Notice Period: Immediate Joiners Preferred / 15 Days or Less

Job Description:

We are seeking a highly skilled and experienced Senior Java Developer with 5+ years of hands-on experience in Java-based application development. The ideal candidate should be adept at designing scalable systems, optimizing performance, and leading development efforts in collaboration with cross-functional teams. This is a full-time, on-site position for candidates currently residing in Mumbai and available to join within 15 days.

Key Responsibilities:

• Lead end-to-end design, development, and deployment of Java applications
• Translate functional and technical requirements into detailed design
• Build scalable, secure, and high-performing applications
• Develop and consume RESTful APIs and ensure seamless integration
• Implement microservices architecture and containerized deployments
• Write clean, efficient, and well-documented code
• Perform code reviews, debugging, and performance tuning
• Collaborate with DevOps for CI/CD and production deployments
• Guide junior developers and conduct knowledge-sharing sessions
• Stay updated on new technologies and industry trends

Required Technical Skills:

• Languages & Frameworks:
• Core Java, J2EE
• Spring Framework (Spring Boot, Spring MVC, Spring Security)
• Hibernate / JPA
• Apache Maven / Gradle
• API Development & Integration:
• RESTful APIs, JSON, Swagger/OpenAPI
• Databases:
• MySQL, PostgreSQL, Oracle
• MongoDB, Redis (preferred)
• Frontend Exposure (Optional but Preferred):
• HTML, CSS, JavaScript, jQuery
• Angular / React
• Tools & Platforms:
• Git, GitHub / GitLab / Bitbucket
• Jenkins, Docker, Kubernetes (basic knowledge)
• SonarQube, Log4j, ELK stack (preferred)
• Cloud & DevOps (Good to Have):
• AWS (EC2, S3, Lambda, RDS), Azure or GCP
• CI/CD pipeline setup
• Architecture & Patterns:
• Microservices, MVC, Design Patterns
• Event-driven architecture (Kafka/RabbitMQ is a plus)
• Testing:
• JUnit, Mockito
• Postman, REST Assured

Soft Skills:

• Excellent problem-solving and debugging skills
• Strong communication and collaboration abilities
• Ability to lead and mentor a team
• Time management and task prioritization
• Adaptable and quick learner

Qualifications:

• Bachelor’s/Master’s degree in Computer Science, Engineering, or related field
• 5+ years of relevant software development experience
• Relevant certifications (Oracle Java, AWS, PMP) are a plus

Eligibility Criteria:

• Must be currently residing in Mumbai
• Must be able to join within 15 days or less
• Immediate joiners preferred

We are looking to hire a Senior Backend Developer, with over 4+ years of experience, to directly work with the CTO and contribute in building and developing new products and feature sets for NostraGamus. The work will entail the opportunity to explore and utilise the latest developments in the world of technology, and formulate ways to incorporate them into day to day work to create stellar products. The candidate must have had significant exposure in building real products, including working with various stakeholders across product and marketing teams. Prior knowledge in building games at scale is highly desirable, but not necessarily.

The following skillsets are highly essential:

1. Expertise in Node Js&Javascript, and hobbyist interest in few other languages like Python, Ruby, PHP. Must have done C/C++ programming in school/college
2. Deep knowledge on Database systems, especially PostgreSQL, and any noSQL clones, including knowledge to optimise
3. Awareness of Docker, virtualization, Redis or similar caching toolsets
4. Absolute mastery in using Unix based systems and Bash. Ability to work in seamlessly in headless environments is a must.
5. Disciplined in approaching problems, ability to maintain composure under catastrophic failures and propensity to work under deadlines

Bonus Points :

1. Passionate about building new products - having done a few personal projects, regardless of success achieved or goals completed.
2. Prior knowledge in building games at scale.
3. Good understanding in AWS and its various services - EC2, ECS, RDS, SQS, Elastic Beanstalk, Elasticache, Route53.
4. Strong interest in Mathematics, Probability Theory, Statistics, Machine Learning and ability to apply math in real-world applications.

Experience: 2-3 years of experience in Python, NodeJS, MySQL, ReactJS, NextJS technologies.

About: Fletch is a U.S. based technology firm building an open insurance ecosystem

connecting consumer apps to insurance providers. The team has previously built global

payment infrastructure at scale (processing $billions in transactions) and founded enterprise

technology companies with solutions in commercial use by over 100 corporates. 

Fletch has seen rapid traction (existing partnerships with leading U.S. insurance providers)

and is backed by top global fintech VCs and angels. The team is now looking to scale

further hiring & expansion.

Location:  Remote 

Responsibilities:

-Developing complex web application features using Python, NodeJS, ReactJS, JS, MySQL, TypeScript, NextJS.

-Writing reusable, testable, and efficient code

-Implementation of low-latency, high-availability, and performant applications

-Integration of user-facing elements developed by front-end developers with server side logic

-Translating designs and wireframes into high quality code

-Optimising components for maximum performance across a vast array of web-capable devices and browsers.

Skills:

-Very strong in programming, DataStructures, Algos and complex tech concepts

-Strong in developing no-code platforms and configurable applications.

-Strong experience in developing apps using React hooks, state, DOM manipulation etc.,

-Strong experience in developing BE code using Python, Node, MySQL.

-Strong expertise working with RESTful APIs

-Strong experience in NextJS

We are looking for an experienced Backend Engineer to join our Technology team. You will be responsible for the server-side of our web applications. You’ll be working closely with our engineers to ensure system consistency and improve user experience.

You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

Skills and Expertise

• Strong experience with backend technologies (PHP / Laravel framework)
• Deep understanding of REST API design and WebSockets
• Confident handling of Git, IntelliJ/Eclipse, Docker and/or Kubernetes, Maven, Jenkins or comparable tools
• You have knowledge in the development of a micro service architecture with modern technologies
• Apply software best practices such as CI/CD, TDD and clean code principles
• Eager to learn new technologies and concepts and aspiration to constantly improve yourself
• Experience in working with APIs, both third-party and custom written
• Good understanding of applications building and debugging with reusability and modularity in mind
• A structured, creative, and solution-oriented way of working

Responsibilities

• Work with development teams and product managers to ideate solutions
• 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 software
• 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 the product

• Design, implement, and maintain API-based applications and REST services.
• Proficiency with Node JS.
• Must have experience in cloud services Azure Cloud/AWS.
• Familiarity with database technology such as MySQL, PostgreSQL, and MongoDB.
• Develop high-quality, efficient, and scalable code.
• Understanding of Agile methodologies and SCRUM framework Strong debugging, analytical and problem-solving skills.
• Provide technical support during implementation efforts, working with technical team members and with business users as required to provide troubleshooting and solutions to technical issues.

Hurry Upp!!! We are Hiring Full Stack Developer

We are looking for a highly skilled computer programmer who is comfortable with both front and back-end programming. Full Stack Developers are responsible for developing and designing front-end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full Stack Developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail.

Full Stack Developer Responsibilities:

• Developing front-end website architecture.

• Designing user interactions on web pages.

• Developing back-end website applications.

• Creating servers and databases for functionality.

• Ensuring cross-platform optimization for mobile phones.

• Ensuring responsiveness of applications

• Working alongside graphic designers for web design features.

We're looking for Senior Node js backend developers with over 2+ years of experience and strong expertise in Javascript based development using Node js and Express. We are looking for cadidates who are go-getters and are leaning towards leadership positions. Candidates must have a proven history of building, scaling, optimising and securing Node js based backends and APIs using a microservice architecture.

Bonus Skill : Experience with ReactJs, Postgres

We would prefer candidates who can join immediately or are currently serving their notice period.

Key Skills Required

1. A passion for Javascript based solutions and an extremely strong understanding of JavaScript

2. Proficiency in Node js and Express based development

3. Stong experience in building scalable REST APIs

4. Experience in implenting API security using tokens, encryptions keys and other methods

5. A proved history of building scalable and secure web applications and APIs with Node js using a microservice architecture

6. Working experience with API Gateways

7. Experience with Docker

8. Experience in maintaining code via Git workflows

9. Ability to work independantly or as a part of a team

10. Ability to work in an Agile environment

Responsibilities

1. Understanding requirement and congributing to engineering solutions at a conceptual stage to provide the best possible solution to the task/challenge

2. Building high quality code using coding standards based on the SRS/Documentation

3. Building component based, maintainable, scalable and reusable backend libraries/modules.

4. Building & documenting scalable APIs on the Open Spec standard

5. Unit testing development modules and APIs

6. Conducting code reviews to ensure that the highest quality standard are maintained

7. Securing backend applications and APIs using industry best practices

8. Troubleshooting issues and fixing bugs raised by the QA team efficiently.

9. Optimizing code

10. Building and deploying the applications

Who We are:

Paxcom a leading Digital Solution Provider is a part of Paymentus now, a leading electronic bill payment provider. PaymentUs leads the North American marketplace in electronic bill payment solutions and have recently signed a partnership with Paypal, Alexa and Walmart. We are looking for passionate programmers skilled in Java, Python, Angular, NodeJS, Python, Jenkins, Postgresql, Docker, Kubernetes, Spark and AWS to join our development team.

For more details, please visit https://paxcom.ai/

Why Join Us?

Get a chance to contribute and get recognition from Day 1.

You hate micromanagement and are able to take your decision independently. 

Enjoy flexible and relaxed wok environment.

Work 5 days a week (Enjoy work-life balance).

A friendly, Supportive, Professional and achievement-oriented management team

Competitive remuneration.

An opportunity to learn new things every day.

You Enjoy:

Ideal resource should be from Java background with a minimum of 3+ years’ experience in Java technologies.

Should have extensive experience working with Spring, Any ORM and Restful Web services.

Strong experience building, designing, and consuming Restful web services.

Must have experience with spring boot/Spring MVC

1+ years’ experience with one or more JS frameworks: NodeJS/Express, Angular, React, ExtJS, Vue is preferred

Experience / Knowledge of Agile Scrum methodology.

Should have used GIT and be self-dependent on resolving merge conflicts.

Should be familiar with build tool like Maven or Gradle.

Excellent verbal and written communication skills.

Ability to handle small teams and mentor them.

Leader, Doer & Architect for Enterprise Java applications

Experience of payment card industry is a plus.

Tech Stack:

Java 8+

Microservices

REST 

Spring Framework 4/5

MySQL 5.6/Oracle

Nice To have (CPM Scheduling, Angular/React, NodeJS)

Linux, GIT, Docker, kubernetes, Cloud, AWS,Kafka

Building tools like Maven, Ant, Gulp