

About Fission Labs
About
Fission Labs is a Software Product Development & Services company delivering high-end solutions primarily in the areas of highly scalable cloud applications and analytics for large sets of data. Few of the challenges we are working on are scaling an application to support 150 million users, real-time bidding with response time requirements of 100 ms or less. If you are somebody who wants to work on big challenges and change the world, we have those opportunities in spades
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JOB DESCRIPTION
Experience: 4-7 years
Location: Bangalore
Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. - 4-7 years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.

Are you looking for a super-challenging role designing backend systems that scale to 1000+ TPSs in one of India's fastest growing, profitable near-Unicorns with businesses spanning Lending, E-comm and UPI? Then this is the role for you.
Client Company is a profitable, rapidly scaling unicorn which is extremely well capitalized. Client has a very strong moat in the consumer lending space on the back of which it is entering into additional large markets such as E-comm and UPI.
Client company is now entering its next phase of growth from a fast-scaling startup to a robust, high-scale financial platform serving millions of users daily.
You'll design systems built for 10x100x growth, make the key technical trade-off calls, and stay deeply hands-on. Beyond building, you'll mentor engineers and work directly with founders and product teams to translate business goals into scalable, reliable systems.
This role is an opportunity to:
- Shape the next-generation architecture for a high-throughput fintech system
- Build systems designed to scale 10x100x from current volumes
- Solve real-world problems across performance, reliability, and financial-grade security
Responsibilities
- Design and evolve the platform architecture to support 10x100x growth
- Own systems end-to-end from the first design decision to production impact
- Lead system design discussions and set the long-term technical direction for the platform
- Identify scale bottlenecks early and drive solutions
- Mentor and elevate engineers through design reviews, code quality, and architectural thinking
- Partner directly with founders and product teams to turn business priorities into scalable systems
- Operate with high ownership in a fast-paced environment where priorities evolve quickly
- Drive projects independently own timelines, coordinate with teams, and see delivery
- Conduct rigorous code reviews and champion engineering best practices across the team
- Proactively identify gaps in the system and come up with concrete approaches to address them
- Solve technical problems across the company not just confined to a single pod
- Challenge existing architecture with data and reasoning push back when its the right call, and drive adoption of better approaches.
Requirements
- 7-12 years of experience in backend or platform engineering
- Strong computer science fundamentals (preferably from IIT, BITS, NITs)
- Strong proficiency in backend development (Node.js, Java, Go, or equivalent)
- Proven experience scaling systems through high-growth startup phases (1→10 or beyond)
- Track record of building and owning critical platforms or systems from scratch
- Exposure to high-volume transactional systems; fintech or lending is a strong plus
- Bias for action - moves fast, makes sound decisions, owns outcomes end-to-end
- Comfortable navigating ambiguity and evolving priorities in a startup environment
- Strong problem-solving skills ability to break down complex technical challenges and arrive at pragmatic, well-reasoned solutions
- Hands-on experience with platform engineering developer tooling, shared services, infrastructure abstractions, or internal platforms
We are looking for Flutter Developers responsible for developing cross-platform mobile
applications.
Work Details:
● Building modern and cross platform mobile applications using Flutter.
● Collaborating with the Planning and Design teams to bring ideas to life.
● Performing app profiling and improving performance.
● Improving code quality through code reviews.
● Developing new features, maintaining code, and fixing/debugging issues.
You need to have:
● One or more published Flutter apps on the App Store / Play Store.
● Good understanding of Flutter and Dart.
● Beginner to intermediate level knowledge of Java, Kotlin or Swift.
● Good understanding of code versioning tools such as Git etc.
● Willingness to learn about new technologies and trends in mobile.
● Familiarity with cloud message APIs and push notifications.
● Working knowledge of Reactive programming is a plus.
● Working knowledge of the general mobile landscape, architectures, trends, and emerging
technologies.
● Bachelor’s degree in Computer Science or related field, or equivalent professional
experience.
● Experience working with agile teams and making rapid decisions in a dynamic and
disruptive environment.
● Strong communication skills.
Benefits:
● Working with the latest technologies in an early-stage product startup, with plenty of
opportunities to learn
● You will work directly under the mentorship of other senior designers/developers and the
startup's founders.
We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.
A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts.
Nature of Work:
This being an advanced level position in the S/W development team the individual is expected to:
Participate as a team member in all phases of the S/W lifecycle, including the analysis and design of S/W systems.
Participate in a detailed level of coding, code walk – through and unit testing of S/W modules.
Participate in integrated testing of product/ package.
Participate in difficult and typical coding assignments with responsibility of a small module consisting of 3 – 5 members.
Participate in exploration/ feasibility study of products.
Have a thorough understanding of the assigned product/ project.
Participate in generating technical documentation of products/ packages.
Providing technical training to the juniors.
Manage allocated resources, keep compliance with discipline and decorum of the organization.
Keep compliance with Systems and Procedures.
Reports to:
Project Manager
Skill Set:
Thorough knowledge of current technological trends in Web based Software
Strong Working knowledge of JSF/JSP, Servlets, Spring, Web application development and Core Java
- Working knowledge of working with databases using EJB.
- Knowledge of Bug Tracking tool such as Jira, Bugzilla and source code version control systems (SVN, GIT)
- Knowledge of working in Scrum methodology.
- Good to have knowledge of SonarQube and Web Security Aspects.
- Knowledge of Responsive Front End Development using HTML5, JavaScript, CSS3, JQuery, Ajax and JSON.
- Should be able to write test cases for the feature.
- Ability to gather and analyze data & draw logical conclusions
∙ Understanding of company’s vision & goals, business operations
and market
∙ Clear and concise oral and written communication skills
∙ Ability to establish and maintain effective work relationships at
all levels
∙ Great passion for S/W development.
∙ Ability to mentor and guide the juniors.
Office Address:
Tech Mahindra Ltd
Empire Tower, A Wing 9th floor- NB 902,Gut no. 31, Cloud City campus, Village Elthan,Thane – Belapur road Airoli (E), Navi Mumbai- 400708 (Maharashtra) IndiaFull-stack Developer
We are looking for 2-3 Year experienced person for our IoT Division based out of Bangalore. Option for Work from Home is also available.
Responsibilities
- Design and implementation of the overall web architecture
- Design and deployment of our database, associated areas such as database design /management and DevOps.
- Ensuring the entire stack is designed and built for speed and scalability
- Design and construction of our API-Fast, REST.
- Integrating our front-end UI with the constructed API.
- Design and implementation of continuous integration and deployment
- Knowledge of JSON and PostgreSQL support for JSON.
- Creating a DB instance running PostgreSQL with the AWS Management Console.
- Knowledge of Redis cache.
Skills
- Writing HTML, CSS, and JavaScript/jQuery
- A relevant back-end programming language e.g., Python or JavaScript.
- Server management and deployment for the relevant environment
- Experience implementing testing platforms and unit tests
- Proficiency with Git.
- Appreciation for clean and well documented code.
Keywords: #AWS #EC2 #Python #Psql #Django #Docker #Redis #Kafka.

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Total of 3-5 years of experience building cutting-edge products.
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Must have a degree in Computer Science or a related field. Strong understanding of object-oriented programming, concurrency, and fundamentals of computer science.
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Technically Hands-on, prior experience with scalable Architecture.
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Bring 3-5 years of software engineering and product delivery experience, with a strong background in algorithms.
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Excellent command over Data Structures and Algorithm Proficiency in implementation of algorithms and use of advanced data structures to solve problems in computing
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Exceptional coding skills in an Object-Oriented programming language (Python preferred with Django framework).
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Strong problem-solving and analytical skills.
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Experience with web technologies Java/Python, Linux, Apache, MySQL, solr, memcache, redis.
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Experience in architecting & building real-time, large-scale e-commerce applications.
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Experience with high-performance websites catering to millions of daily traffic is a plus.
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Java/ Python, MySQL, Redis, ElasticSearch, Problem Solving, Scalability, Design Patterns, Distributed System
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Develop complex software products that include scale, algorithmic complexity, and a huge amount of data.
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Build cutting-edge scalable systems by writing simple and efficient code.
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Code, develop, design, and architect features related to the existing application. We expect you to own modules end to end and take pride in the work products you ship
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Contribute to all aspects of an agile software development lifecycle including design, architecture, development, documentation, testing, and operations.
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Design, implement, and maintain highly scalable, multi-tier, distributed server software applications
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Deliver across the entire app life cycle, design, build, deploy, test, release to app stores, and support
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Working directly with developers and product managers to conceptualize, build, test, and release products
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Take responsibility for performance and stability for all server functions
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Continuously discover, evaluate, and implement new technologies to maximize development efficiency







