MERN Stack Developer

About Us

HighLevel is an AI powered, all-in-one white-label sales & marketing platform that empowers agencies, entrepreneurs, and businesses to elevate their digital presence and drive growth. We are proud to support a global and growing community of over 2 million businesses, comprised of agencies, consultants, and businesses of all sizes and industries. HighLevel empowers users with all the tools needed to capture, nurture, and close new leads into repeat customers. As of mid 2025, HighLevel processes over 15 billion API hits and handles more than 2.5 billion message events every day. Our platform manages over 470 terabytes of data distributed across five databases, operates with a network of over 250 microservices, and supports over 1 million domain names.

About the Role

We are looking for a highly experienced Lead Engineer to take technical ownership of our Social Planner product suite, which enables users to connect social accounts, schedule and publish posts, manage comments, and analyze performance through real-time dashboards. This role will also help drive improvements across our Media Optimization system, ensuring we deliver a world-class experience for millions of users.

You will lead a team of talented engineers, shape technical direction, modernize architecture, and ensure the platform remains reliable, scalable, and high-performing as we continue to expand.

This is a high-impact leadership role for someone who thrives in complex distributed systems, loves solving tough technical challenges, and enjoys building products used at massive scale.

Responsibilities

• Lead architecture, design, and development of the Social Planner & Media Optimization platforms.
• Own end-to-end reliability, performance, and scalability of distributed systems.
• Design and maintain fault-tolerant pipelines for posting, media processing, analytics, and comment workflows.
• Drive modernization efforts: event-driven patterns, improved data models, and microservice decomposition.
• Establish a long-term technical roadmap and make impactful architectural decisions.
• Mentor, guide, and support backend, frontend, and full-stack engineers.
• Conduct meaningful code reviews and enforce engineering best practices.
• Collaborate with Product, Design, Data, and Support teams to deliver high-impact features.
• Ensure high standards in code quality and documentation.
• Improve posting reliability, delivery accuracy, retries, and error handling.
• Build and optimize dashboards for analytics, scheduling workflows, and comment moderation.
• Enhance media processing systems: compression, transcoding, storage, and CDN usage.
• Troubleshoot complex production issues and lead root cause analyses.
• Optimize performance across databases, search indexes, queues, and backend services.
• Ensure platform security, privacy, and multi-tenant isolation best practices.

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Requirements

• 8+ years of full-stack engineering experience with significant backend/system design exposure.
• Deep expertise in distributed systems and event-driven architecture.
• Strong experience with asynchronous job processing and background workers.
• Solid understanding of both relational and NoSQL databases (MongoDB, ClickHouse preferred).Proven ability to build scalable, multi-tenant SaaS applications.
• Strong experience with modern frontend frameworks (Vue.js, React, or Angular).Ability to design and optimize interactive dashboards and data-heavy UIs.
• Excellent understanding of software design patterns, API design, and microservices.
• Hands-on experience with CI/CD pipelines, TDD, and automated testing frameworks.
• Strong performance tuning, profiling, and optimization skills (especially Node.js).Experience with caching, rate limiting, and queuing systems.
• Proven experience integrating third-party APIs (preferably social media APIs).Strong knowledge of Elasticsearch for search, indexing, and analytics.
• Experience using Redis for caching, session storage, or background queues.
• Experience leading engineering teams or acting as a technical lead.
• Strong communication skills with the ability to work cross-functionally.
• Ability to make clear architectural trade-offs and guide team decision-making.

Bonus Skills

• Contributions to open-source tools, internal platforms or engineering blogsExperience with observability tools (Prometheus, Grafana, OpenTelemetry).
• Knowledge of media processing, compression, encoding, and CDN workflows.
• Exposure to AI-driven content tools or automation systems.
• Experience with domain-driven design and system decomposition.
• Familiarity with security standards, OAuth, rate limiting, and multi-tenant data protection.

Our People

With over 1,500 team members across 15+ countries, we operate in a global, remote-first environment. We are building more than software; we are building a global community rooted in creativity, collaboration, and impact. We take pride in cultivating a culture where innovation thrives, ideas are celebrated, and people come first, no matter where they call home.

Our Impact

As of mid 2025, our platform powers over 1.5 billion messages, helps generate over 200 million leads, and facilitates over 20 million conversations for the more than 2 million businesses we serve each month. Behind those numbers are real people growing their companies, connecting with customers, and making their mark - and we get to help make that happen.

We are looking for a Fullstack Developer experienced with Fullstack JavaScript, Cloud and IoT solutions. For the agile development of our web, mobile, and cloud applications and IoT products, building efficient, reliable and scalable solutions. A hands-on coding role, where you will build and manage your own team.

Tasks:

• Development of modern JavaScript-based applications in the back-end
• Development, implementation and optimisation of innovative IoT products, web apps and new features
• Technical product design, solution architecture, specifications and implementation of Livello solutions
• Work with a cross-functional team to define, build, test, and deploy universal applications
• Version control with Git is part of your daily work and continuous integration
• Ensure the implementation of technical standards, quality assurance and best practices.

Requirements:

• Bachelor's degree in Computer Science or comparable field of study
• 3-4 years experience in agile software development.
• Proficiency in Javascript, Node.js, TypeScript, Reactjs, Reactnative and Nest.js, MongoDB.
• Experience with GraphQL and docker as well as state management solutions (Redux, Saga)
• Experience with test and deployment automation (Gitlab, Fastlane, Jest).
• Experience with MongoDB or any equivalent Database.
• Ability to work cooperatively and independently, analytical thinking, willingness to lead and take on responsibility
• Fluent in English.

Nice to have:

• Experienced in IoT-to-Cloud managed services, Microservices, Kubernetes and Docker on GCP / AWS
• Knowledge of IoT device management and message brokers like AMQP or MQTT.

Benefits

• A responsible position in a fast-growing and highly innovative start-up
• An agile and diverse team with colleagues from all over the world, working with our main office in Germany
• English speaking open work environment, with flat hierarchies and short decision-making paths
• Advanced technology stack leveraging cutting-edge IoT hardware and software
• Creative freedom for own ideas, projects and personal development.

Join the team of a fast-growing fintech organization that has recently raised $25M via equity and debt fund to rapidly increase the ever-growing space of Fintech World.

A financial technology platform made up of the most knowledgeable, passionate, and creative people in our business. We recognize the power of financial services to break down barriers and make it easy for customers to avail banking, investments, and lending solutions – that responsibility inspires us to be the place where exceptional people want to do their best work and to provide them the tools to do so.

Looking for motivated, highly driven, and hardworking Software Engineers for the Neobanking platform for a leading Fintech organization in a highly collaborative, fast-paced, high-energy environment. You will build the platform for user onboarding, profile management, banking, lending, risk mitigation, and analytics for driving intelligence from customer interaction patterns. It’s an exciting time to join the team as we’re setting about building the next generation of our platform.

• Design and implement scalable server-side solutions using Java.
• Write optimized front-end code using HTML, CSS, and Javascript
• Write unit, automation, and integration tests
• Implement quality application logging for operational monitoring at scale
• Investigate, debug and resolve production site issues
• Work with co-located teammates to deliver on common goals

• Professional experience in enterprise Java software development using Spring MVC frameworks, RESTful APIs, and SOA
• Proficiency in HTML/CSS/JavaScript/jQuery
• Experience with Docker and Kubernetes
• Experience with Microservices
• Experience with DevOps Technologies is plus
• Experience with Selenium for UI automated tests written in Cucumber or Scala
• Working knowledge of design patterns and CI/CD principles
• First-class communication skills in written and verbal form
• Outstanding problem-solving skills
• A commitment to producing high-quality code with an attention to detail
• Dedication and a self-motivated desire to learn
• A collaborative, team-orientated attitude
• 3-8 years of professional experience in Java software development
• Experience working in the Cloud (AWS)
• API development experience
• Exposure to monitoring tools such as ELK, Splunk

Job Description: Software Developer

Position Overview:

As a Software Engineer, you will play a crucial role in the development and implementation of innovative software solutions. You will be responsible for designing, coding, testing, and debugging applications while collaborating with cross-functional teams to deliver high-quality software products. This position offers the opportunity to work on diverse projects, solve complex technical challenges, and contribute to the advancement of cutting-edge technologies.

• Key Responsibilities:

1. Software Development: Design, develop, and maintain software applications in accordance with project requirements and coding standards. Write clean, efficient, and well-documented code using appropriate technologies and programming languages.

2. System Architecture: Contribute to the design and architecture of software systems, ensuring scalability, reliability, and performance. Collaborate with architects and senior engineers to design robust solutions that meet business objectives.

3. Testing and Debugging: Conduct unit testing, integration testing, and debugging to ensure software quality and reliability. Identify and resolve software defects promptly, documenting issues and solutions as necessary.

4. Collaboration: Work closely with cross-functional teams including product managers, designers, and other engineers to understand project requirements, provide technical insights, and deliver high-quality software solutions on time.

5. Continuous Improvement: Stay updated on emerging technologies, industry trends, and best practices in software engineering. Proactively identify opportunities to improve processes, tools, and methodologies to enhance team productivity and product quality.

6. Documentation: Create and maintain technical documentation including design specifications, system architecture diagrams, and user manuals. Ensure documentation is accurate, comprehensive, and accessible to relevant stakeholders.

7. Communication: Communicate effectively with team members and stakeholders to provide status updates, discuss technical solutions, and address challenges. Foster a collaborative and inclusive team environment built on trust, respect, and open communication.

• Qualifications:

- Bachelor's degree in computer science, Software Engineering, or related field.

- Proven experience in software development, with expertise in one or more programming languages such as Java, Python, C++, or JavaScript.

- Strong understanding of software engineering principles, algorithms, and data structures.

- Experience with software development methodologies such as Agile, Scrum, or Kanban.

- Proficiency in using version control systems (e.g., Git) and development tools (e.g., IDEs, debuggers).

- Excellent problem-solving skills and attention to detail.

- Effective communication and interpersonal skills, with the ability to collaborate in a team environment.

- Commitment to continuous learning and professional development.

Additional Desired Skills :

- Experience with cloud computing platforms (e.g., AWS, Azure, Google Cloud).

- Knowledge of web development frameworks (e.g., React, Angular, Django, Flask).

- Familiarity with containerization technologies (e.g., Docker, Kubernetes).

- Understanding of DevOps practices and tools for automation (e.g., CI/CD pipelines).

- Experience with relational and NoSQL databases (e.g., MySQL, MongoDB).

- Knowledge of cybersecurity principles and best practices.

Responsibilities:

• Expertise in back-end programming language JavaScript , TypeScript , NodeJs
• Writing HTML , CSS , and JavaScript
• Working with RDBMS such as Postgres or MySQL
• Experience implementing testing platforms and unit tests Proficiency with Git Appreciation for clean and well-documented code
• Understanding of microservices and distributed systems

Good to haves:

‍Experience working with AWS infrastructure Docker or Kubernetes Message queues such as Kafka CI/ CD tools such as Jenkins

Requirements:

• Proven work experience as a Back-end developer In-depth understanding of the entire web development process (design , development and deployment)
• Hands on experience with programming languages like Node.js , Javascript Familiarity with front-end languages (e.g. HTML , JavaScript and CSS)
• Excellent analytical and time management skills
• BE/Btech degree in Computer Science or relevant field

Required Skills:

Back-End Programming, JavaScript, TypeScript, NodeJs, Testing, Node.js, SAAS Product, IT Services, Profitability, ERP, SaaS, IT Service, Web Applications, B2B, Self-Driven, Writing, HTML, CSS, RDBMS, Postgres, MySQL, Git, Microservices, AWS, Infrastructure, Docker, Message Queues, Kafka, CI/CD, Jenkins

• Bachelor’s degree in Computer Science, Software Engineering, or a related discipline
• 4+ years experience working in an IT environment
• 4+ years of Object-oriented design, functional programming
• Node JS API Development (Firebase API development is a plus)
• Angular or VUE or React JS Front end Development (VUE Js Experience is a plus)
• HTML / CSS responsive development
• Experience using any database
• Experience developing in an Agile / SCRUM Environment
• Experience developing mission-critical applications
• Strong business and technical acumen
• Excellent verbal and written communication skills

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

We are looking for people who have a passion for solving problems, can write exceptional code and don't shy away from challenges and new technology. Our products affect thousands of people everyday and we want someone who would love to contribute towards that end.

If you:

• Know how to write robust and reliable systems
• Have knowledge of managing and scaling for high volume traffic
• Are someone who enjoys execution of an idea as much as finding new and innovative ideas to solve problems
• Actively try to gain more knowledge and pass on knowledge to your peers

Then we are definitely a right match for you

What we expect from you:

• Excellent understanding of web applications.
• Good knowledge about AWS or similar services.
• Ability to quickly learn new technologies.
• Good understanding of the delivery pipeline in a team environment.
• Innovative and creative problem solving.
• Ability to understand and communicate across teams and departments.

What you will be doing:

• Work as a part of a team or individually.
• Build products that help us expand our portfolio and drive growth for the organisation.
• Take up ownership of the entire lifecycle of products.
• Help, mentor and guide interns, new joinees and other developers.
• Engage with the client and people from other departments to come up with the best solutions.
• Point out existing problems with our solutions, processes and architecture

What we look for:

• Should have used/contributed to popular Open Source Libraries and Tools
• Should have worked on web technology (Rails / SpringBoot / Django / NodeJs)
• Always on the cutting edge of technology.
• Ability to divide a larger problem into smaller pieces for everyone to work on.
• Process driven and detail oriented
• Should have mentored new joinees
• More than 3 years of relevant experience in the domain
• Should be able to work out of our Bangalore office.