Staff / Principal Engineer - BackEnd (Java)

About Us:

MyOperator and Heyo are India’s leading conversational platforms, empowering 40,000+ businesses with Call and WhatsApp-based engagement. We’re a product-led SaaS company scaling rapidly, and we’re looking for a skilled Software Developer to help build the next generation of scalable backend systems.

Role Overview:

We’re seeking a passionate Python Developer with strong experience in backend development and cloud infrastructure. This role involves building scalable microservices, integrating AI tools like LangChain/LLMs, and optimizing backend performance for high-growth B2B products.

Key Responsibilities:

• Develop robust backend services using Python, Django, and FastAPI
• Design and maintain a scalable microservices architecture
• Integrate LangChain/LLMs into AI-powered features
• Write clean, tested, and maintainable code with pytest
• Manage and optimize databases (MySQL/Postgres)
• Deploy and monitor services on AWS
• Collaborate across teams to define APIs, data flows, and system architecture

Must-Have Skills:

• Python and Django
• MySQL or Postgres
• Microservices architecture
• AWS (EC2, RDS, Lambda, etc.)
• Unit testing using pytest
• LangChain or Large Language Models (LLM)
• Strong grasp of Data Structures & Algorithms
• AI coding assistant tools (e.g., Chat GPT & Gemini)

Good to Have:

• MongoDB or ElasticSearch
• Go or PHP
• FastAPI
• React, Bootstrap (basic frontend support)
• ETL pipelines, Jenkins, Terraform

Why Join Us?

• 100% Remote role with a collaborative team
• Work on AI-first, high-scale SaaS products
• Drive real impact in a fast-growing tech company
• Ownership and growth from day one

What You will do 

● Create beautiful software experiences for our clients using design thinking, lean and agile methodology.

● Work on world-class software products using the latest cutting edge technologies and platforms.

● Work in a dynamic, collaborative, transparent, non-hierarchical culture.

● Work in collaborative, fast-paced and value-driven teams to build innovative customer experiences for our clients.

● Help to grow the next generation of developers and have a positive impact on the industry.

Basic Qualifications

● Experience: 5+ years.

● Hands-on development experience in backend, Java, SprintBoot, Hibernate, SQL, MongoDB, Jenkins, Microservices etc...

● Server-side development experience mainly in JAVA.

● Passion for software engineering and follow the best coding concepts. ● Good to great problem solving and communication skills.

● Experience in working with cross-border, distributed teams is a must.

Nice to have Qualifications 

● Product and customer-centric mindset.

● Great OO skills, including design patterns.

● Experience with large-scale enterprise systems

Read less

LogiNext is looking for a technically savvy and experienced senior developer to lead development efforts. You will help the team grow in size and skills, optimizing their code while working on your own. You will design, and develop products that exceed client expectations in terms of value and benefit. You will collaborate on scalability issues involving access to massive amounts of data and information.

You have hands-on experience in building secure, high-performing and scalable systems in Java. Your design intuition inclines toward usability, elegance and simplicity. You are biased towards open-source tools and existing frameworks. You have successfully shipped applications with a beautiful front-end and intelligent backend. You have demonstrated strong interpersonal and communication skills.

Responsibilities

Design and development efforts for high-volume, low-latency applications for real-time event based systems Deliver high-availability and high-performance platform using microservices architecture Identify bottlenecks and inefficiencies in code, and devise solutions to production and non-production issues Keep an eye out for open source projects and technology trends that can be introduced in the products Transform business functionalities and production specifications into technical requirements and low level design Be hands-on, adopt a practical approach to software and technology Work with product management and other teams to build highly scalable products

Requirements

Bachelor’s degree in Computer Science, Information Technology or a related field 0 to 1 years of design and development experience in scalable and distributed enterprise applications using Java/J2EE, JPA, Spring framework and RESTful web services Excellent coding skills in Java Experience in managing, implementing and optimizing big data stores such as MySQL, MongoDB, Elasticsearch Experience in deploying applications and using various managed services provided by cloud platforms (AWS, Azure) Experience in front-end technologies HTML5, CSS3, jQuery, AngularJS and D3.js is preferred Strong foundation in computer science, with strong competencies in data structures, algorithms and software design Proven ability to drive large scale projects with deep understanding of Agile SDLC, high collaboration and leadership

• 4+ years distributed service engineering experience in a software development environment
• Experience driving feature design reviews, documentation, UX reviews, and working with Product Managers through the entire launch process
• Strong development experience in Java, C++, C#, or similar OO languages
• Strong knowledge of data structures, algorithms, operating systems, and distributed systems fundamentals
• Working familiarity with networking protocols (TCP/IP, HTTP) and standard network architectures
• Good understanding of databases, NoSQL systems, storage and distributed persistence technologies
• Experience building multi-tenant, virtualized infrastructure a strong plus

About Wise

Wise is digital infrastructure for online education. Oversimplified as ‘Shopify for Tutors’ i.e., an easy to use tool for tutors to start teaching online. We have grown to 2mn users in 12 months and have much to do. We are backed by an incredible set of investors and individuals who have built product you already use. We have a small but rockstar team, cheap equity, smart money, opportunity to capture a huge market ($60bn) and a chance to make an impact while doing so.

What we need

We need you, if you are a senior software engineer with 4+ years of experience in building robust scalable systems. Work would involve building things quickly and adapting based on market feedback while ensuring the security and quality of the codebase. If you love coding and building things excites you, we would like to talk to you.

What you will need (Skills)

• Experience building microservices and distributed systems, RESTful APIs, user interfaces
• Knowledge and will of writing unit, integration tests is a must. TDD is a plus
• Preferably a polyglot: Strong command Ruby/Golang/Java/Python
• Some exposure to infra: Deployments, CI/CD setup, security. AWS exposure is good to have
• Strong database concepts. Experience with MongoDB is a plus

What you will do

• Feature analysis, hands on development, code reviews, deployment & rollouts
• Passionately maintain coding practices, quality & good design standards
• Design and develop highly scalable, available, secure and fault tolerant systems
• Actively contribute in assessing & improving/optimizing security & infrastructure

Great to have

• Sense of ownership
• Developers who can talk product and strategy
• Experience in building scalable consumer products
• Strong opinions, loosely held

Good to have

• Interest in mentorship
• Good written communication skills
• Bangalore love

Probably not ideal if

• If you have always been right about stuff in life
• No flexibility around working hours (this doesn’t mean we work long hours but if our systems get attacked in the middle of the night, we would need you to HODORR!)

Definitely get in touch if you

• Would have started the exact same company but willing to build it together with a great team
• Find our current product unbearably slow or inadequate
• Think this company isn’t going to work as it is right now

• java 8+
• springcore 
• springboot
• MongoDB
• Angular
• Agile

As Back end developer, we expect you to be motivated in solving real-life complex problems and create compelling experiences for our Resellers. Being a small company we have a culture of creative problem solving, intellectual design, fast-paced development, and passionate product delivery. Enhance or build Restful web services for our mobile app.

Responsibilities:

• Develop server-side components, REST APIs
• Assume ownership for existing and new modules including design, development, and unit testing for enhancements of existing modules and development of new modules.
• Analyse problems logically and exercise sound judgment in defining, evaluating, and solving difficult technical and operational problems where solutions may be of a precedent-establishing nature.
• Lead the design and architectural improvements
• Participate and collaborate with team members in design discussions, determines areas of complexity, potential risks to successful implementation, suggest enhancements to architecture, implement POCs, and enhance application.
• Reduce technical debt with quality coding

Requirements:

• A solid grounding in Computer Science fundamentals (based on a BS or MS in CS or related field) from IITs and Premier Engineering College.
• Excellent Object Orientation, coupled with excellent problem solving and debugging skills.
• Highly skilled at Java and related technologies, including Java Frameworks like Spring-boot or Drop wizard, RESTful web services, JSON, Servlet, JSP, MySQL, MongoDB, Kafka, AWS Solr.
• Must have hands-on experience in building scalable and secure back end systems.
• Have hands-on experience with systems that are asynchronous, RESTful and demand concurrency
• Good to have knowledge of best software engineering practices for all stages of the software development life cycle, including coding standards, code reviews, testing, deployment.

The Java/Backend Developer is responsible for the development and maintenance of Bytemark’s backend APIs. This person utilizes their knowledge of Java development & web technologies as an integral part of the software development team.

Responsibilities:

• Design, develop, maintain, and deliver highly scalable and reliable APIs
• Collaborate with development team and product owners to analyze, design, and implement user stories using an agile methodology.
• Write high-quality software code that complies with design specifications and meets development and support requirements.
• Develop unit tests and test changes using an agile methodology.
• Use a variety of tools to perform unit testing, automated builds, and source control.
• Participate as a member in Agile teams, and work with other team member to review user stories, estimate effort for user stories, and participate in sprint reviews.
• Maintaining current web and back-end features
• Learning new skills and technologies as company products and industry standards warrant

Required Skills:

• 2-6 years of experience building RESTful APIs
• 2+ year of hands-on Java experience using Play 1.x framework
• Knowledge of Spring or Grails frameworks is a plus
• Ability to write SQL.
• Understanding of OOP
• Experience with Test Driven Development (TDD) using JUnit, Selenium or a similar technology
• Basic knowledge of Unix
• Excellent verbal, written, and interpersonal communication skills
• 3-8 years of software development experience
• Undergraduate degree in the field of computer science or equivalent
• Able to handle multiple tasks in a fast paced environment