
Role & Responsibilities
As a Founding Engineer, you'll join the engineering team during an exciting growth phase, contributing to a platform that handles complex financial operations for B2B companies. You'll work on building scalable systems that automate billing, usage metering, revenue recognition, and financial reporting—directly impacting how businesses manage their revenue operations.
This role is ideal for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems require creative solutions. You'll work on diverse technical challenges, from API development to external integrations, while collaborating with senior engineers, product managers, and customer success teams.
Key Responsibilities
- Build core platform features: Develop robust APIs, services, and integrations that power billing automation and revenue recognition capabilities.
- Work across the full stack: Contribute to backend services and frontend interfaces to ensure seamless user experiences.
- Implement critical integrations: Connect the platform with external systems including CRMs, data warehouses, ERPs, and payment processors.
- Optimize for scale: Design systems that handle complex pricing models, high-volume usage data, and real-time financial calculations.
- Drive quality and best practices: Write clean, maintainable code and participate in code reviews and architectural discussions.
- Solve complex problems: Debug issues across the stack and collaborate with cross-functional teams to address evolving client needs.
The Impact You'll Make
- Power business growth: Enable fast-growing B2B companies to scale billing and revenue operations efficiently.
- Build critical financial infrastructure: Contribute to systems handling high-value transactions with accuracy and compliance.
- Shape product direction: Join during a scaling phase where your contributions directly impact product evolution and customer success.
- Accelerate your expertise: Gain deep exposure to financial systems, B2B SaaS operations, and enterprise-grade software development.
- Drive the future of B2B commerce: Help build infrastructure supporting next-generation pricing models, from usage-based to value-based billing.
Ideal Candidate Profile
Experience
- 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems.
- Strong backend development experience using one or more frameworks: FastAPI / Django (Python), Spring (Java), or Express (Node.js).
- Deep understanding of relevant libraries, tools, and best practices within the chosen backend framework.
- Strong experience with databases (SQL & NoSQL), including efficient data modeling and performance optimization.
- Proven experience designing, building, and maintaining APIs, services, and backend systems with solid system design and clean code practices.
Domain
- Experience with financial systems, billing platforms, or fintech applications is highly preferred.
Company Background
- Experience working in product companies or startups (preferably Series A to Series D).
Education
- Candidates from Tier 1 engineering institutes (IITs, BITS, etc.) are highly preferred.

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Develop, record and maintain cutting edge web-based J2EE, JAVA applications.
Experience on Java Spring Framework is required.
Experience on Hibernate is required.
Experience on REST Services is required.
Object-oriented programming, design, and patterns.
Strong proficiency with:Relational database concepts and data modeling.
Good communication skills to interact with customer, understand their requirement, effectively record the requirement and implement the same.
Shift timings : Afternoon
Job Summary
We are seeking an experienced Senior Java Developer with strong expertise in legacy system migration, server management, and deployment. The candidate will be responsible for maintaining, enhancing, and migrating an existing Java/JSF (PrimeFaces), EJB, REST API, and SQL Server-based application to a modern Spring Boot architecture. The role involves ensuring smooth production deployments, troubleshooting server issues, and optimizing the existing infrastructure.
Key Responsibilities
● Maintain & Enhance the existing Java, JSF (PrimeFaces), EJB, REST API, andSQL Server application.
● Migrate the legacy system to Spring Boot while ensuring minimal downtime.
● Manage deployments using Ansible, GlassFish/Payara, and deployer.sh scripts.
● Optimize and troubleshoot server performance (Apache, Payara, GlassFish).
● Handle XML file generation, email integrations, and REST API maintenance.
● Database management (SQL Server) including query optimization and schema updates.
● Collaborate with teams to ensure smooth transitions during migration.
● Automate CI/CD pipelines using Maven, Ansible, and shell scripts.
● Document migration steps, deployment processes, and system architecture.
Required Skills & Qualifications
● 8+ years of hands-on experience with Java, JSF (PrimeFaces), EJB, and REST APIs.
● Strong expertise in Spring Boot (migration experience from legacy Java is a must).
● Experience with Payara/GlassFish server management and deployment.
● Proficient in Apache, Ansible, and shell scripting (deployer.sh).
● Solid knowledge of SQL Server (queries, stored procedures, optimization).
● Familiarity with XML processing, email integrations, and Maven builds.
● Experience in production deployments, server troubleshooting, and performance tuning.
● Ability to work independently and lead migration efforts.
Preferred Skills
● Knowledge of microservices architecture (helpful for modernization).
● Familiarity with cloud platforms (AWS/Azure) is a plus.
- Bachelor’s degree in computer science, Web Development, or a related field (or equivalent practical experience).
- Minimum of 4 to 8 years of professional experience in Java
development.
- Strong proficiency in Java and object-oriented programming.
- Minimum of 4 years of experience in building microservices with Spring Boot.
- Solid understanding of RESTful APIs and experience with API design and integration.
- Strong problem-solving skills and the ability to think critically.
• Expertise in OOPS and coding practices and exposure to TDD
• Should be able to define deployment roadmap and requirements for DevOps implementation.
• Versatile in choosing appropriate tools and frameworks for the Core and advance java development procedures.
• Good in Spring Boot and latest java methodologies to suggest best practices and proven solutions to the business.
• Expert in service oriented solutions and micro services architecture (REST). Should have been a part of monolithic to micro services rearchitecture.
• Exposure towards No-Sql databases such as Cassandra or Mongo DB.
TAPPP is leading the charge in bringing premium digital entertainment content & live sports to global consumers via its prepaid platform. TAPPP is available across platforms via the Web, Mobile and Tablets. Building out this brand presents significant product and engineering challenges. At the centre of solving those challenges is the TAPPP Product Engineering team which is responsible for the TAPPP product end to end.
We are looking for a coding enthusiast who love working with code and developing software systems.
You will be a part of the core product development team that is responsible for building different components of the TAPPP platform. You will be responsible for designing, coding, reviewing, testing, bug-fixing different modules of the software product that needs to work seamlessly across different environments.
The organization is flat, process is minimal, individual responsibility is big, and there is an emphasis on keeping non-productive influences out of the everyday technical decision making process. Upholding these philosophies will be imperative as we execute our aggressive plan of global expansion over the next 2 years. The position is based in Mumbai, India.
Here is what we are looking for:
• Deep product development experience and sound understanding into these technologies
• Java/J2EE
• Spring
• Hibernate
• RESTful API's
• MySQL
• Tomcat 7
• Exposure on Grails & Amazon AWS will be a plus point
• Strong independent contributor
• An unquenchable desire to learn, attention to detail with a can-do attitude
• Comfortable working in a start-up environment
At Primathon, we strive to deliver world-class software for our clients and empower our engineers to become full-stack in technology and provide them 360° experience. We are looking for champions in backend development with experience in NodeJs/Python. You would be working on NodeJs, Python, PostgreSQL, MongoDB, Redis Elastic search, RabbitMq, SQS, Docker, AWS.
Responsibilities and Duties
● Participate in agile software development, prototyping and code reviews
● As a backend engineer, you will work on backend services in Node JS, MongoDB, PostgreSQL, Redis.
● Design, implement and/or use RESTful web services
● Designing database schema
● Writing automation test cases
● Write testable, well-thought-out code within the ecosystem, embracing additional languages and frameworks when appropriate
Required Experience, Skills and Qualifications
● 1+ years of experience as a Backend developer.
● Experience designing, implementing and using RESTful Web Services with Service-Oriented Architecture.
● Knowledge & basic understanding of JavaScript frameworks like React, D3, etc and strong experience working with MVC.
● Solid understanding of version control principles, preferably using Git
● Experience using mocking frameworks, testing frameworks, dependency injection, NoSQL and/or relational databases
● Strong knowledge on how to navigate the vast and quickly evolving collection of open source projects and select the right tool for the job
● Attention to detail and the ability to build reliable, scalable, and flexible software.
Work Experience ** Minimum 2+Years
Senior Software Engineer - Payments
MishiPay
Competitive salary, bonus and potential share options
Bangalore
Please read our full advert before applying. You MUST have payments experience.
About Mishipay:
MishiPay (https://mishipay.com/" target="_blank">https://mishipay.com/) was founded in 2015 by Mustafa Khanwala (https://t.sidekickopen87.com/s3t/c/5/f18dQhb0S7kv8cW0B4W4V2M7g2zGCwVW8Jbw_83My4KPW4XXYRz3MqbyWW4Xq_Cl16gGDkf34lRCG01?te=W3R5hFj4cm2zwW4mKLS-3ZWVWBW3K2-zv1JxwY5W1Lyz993_-rybW3z9CQ13QZn51f3zd5DJ04&si=6558133869871104&pi=23656670-1dc8-41be-f0fe-f4c7fec4c64c" target="_blank">/in) bringing the best of the online checkout experience to physical stores.
We do this with our Scan, Pay and Go experience. Using our native apps on Android or iOS, or our web app available on Chrome or Safari, customers scan the products they wish to buy in store using their own phone and pay instantly. This eradicates the need to wait in line or touch store hardware.
As the world’s leading Scan and Go provider, we work with 30+ brands across 15 countries, including names like MUJI, Eroski, Flying Tiger Copenhagen, Spar, Londis and many others. The work is challenging, hard and long and requires you to be on top of your game but if the adventure and journey excite you then this is the place for you. We want to make sure that in exchange for this commitment from our team, we offer them the best package possible in terms of options, salary and bonus linked to the success of the business. You’ll also quickly see the impact of your work as we develop our products and customers
Requirements
We are looking for a Backend Engineer who possesses a passion for pushing mobile technologies to the limits and will work with our team of talented engineers to design and build the next generation of our mobile applications. You’ll play a key part in the development of our products, help to evolve and streamline our tech stack to suit our needs as we grow, and you’ll enjoy working in an environment surrounded by like-minded inspirational individuals.
Ideally we would love you to have Python, but we will also look at Java or other languages. It's essential you have worked as a Backend Engineer in a Payments domain.
Qualifications:
- Ideally, deep expertise with Python programming language and Django + DRF framework to build backend services
- Experience with Node.js and Kafka
- Substantial experience in building complex and scalable solutions using SQL databases
- Hands-on experience of database modelling for any NoSQL databases like MongoDB / Cassandra / DynamoDB or other
- Experience with full backend development life cycle in any programming language on a Linux platform
- Comprehensive operational experience including, optimizations & deployments with Kubernetes
- Experience leading multi-engineer projects and mentoring junior engineers
- Strong object oriented design skills, ability to apply design patterns, and an uncanny ability to design intuitive module and class-level interfaces
- BTech, MTech, or higher in Computer Science or related technical discipline (or equivalent)
You will:
- Take ownership of a functional area from product conception to delivery
- Contribute to engineering requirement documents (ERDs) by defining work breakdown, estimating tasks duration & setting milestones
- Take non-functional requirements (Reliability & Availability, Scale, horizontal scalability) and Tech stack decisions
- Participate in daily agile team stand-ups
- Coach and mentor junior team members
- Own code base & documentation quality
- Actively work to clear maintenance debt as we continue improving our tech
Benefits
Why MishiPay?
You’ll work with an inspirational multi-cultural team, based in our central London HQ, the US and Bangalore, who are redefining the retail industry globally. We offer a tight-knit, collaborative and exciting work environment, coupled with the opportunity to see the apps we develop live in action within some of the world’s largest retailers, impacting the lives of millions of shoppers. You’ll also get:
- Yearly Bonuses and Share Options
- Learning and Development Monthly Allowance
- A chance to be recognised in one of our two monthly award schemes (and win various prizes)
- A new MacBook
- Pitch Training
- Online Fitness Sessions
- Quarterly team-building and fun events for our London office and free lunches in Bangalore!
● Excellent understanding of OO / Functional programming concepts.
● Strong expertise in design patterns and coding best practices.
● Experience in designing and building end to end distributed highly available N-tier web
high-traffic, scalable and high performance enterprise applications.
● A strong knowledge of Big data technologies like Hadoop , Spark, Kafka, distributed frameworks,
NoSQL databases would be great, if not, one should have a strong desire to learn.
● Experience in RESTful web service patterns, microservice architecture and containers.
Frontend - Angular js, Javascript, JSP, added advantage for RIOTjs
Websocket technologies - Added advantage
Basic understanding of Apache Tomcat
- Strong Java software development experience – with a focus on Java 8 & 9
- Experience with NoSql databases – ideally with MongoDB
- Experience implementing REST apis – ideally with JAX-RS
- Experience with Reactive Programming – ideally with RxJava
- Experience implementing unit tests
Preferred Qualifications
- Experience developing applications in fintech or established financial institutions
- Experience with microservice architectures
- Experience developing systems that can scale to large amounts of data
- Experience working in Agile Scrum
- Experience working on a globally distributed team












