
Desired Experience
3+ years
Job Description
What You’ll Do
- Design financial systems for scale. Measure, plan, iterate.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Setup and own the engineering architectures built around event sourcing, application sharding, database sharding, service communication mesh, etc.
- The tech: Go, Google Cloud Spanner, Kafka, Redis
What you bring to the table
- 3+ years of experience. Relevant experience is preferred.
- Knowledge of 2 common programming languages - Python & Go / Java & Node / Rust
- Comfortable in linux command line, AWS or GCP
- Strong unit test and debugging skills
- Great communication skills
Bonus if you have…
- Love building great products and engineering systems from scratch
- Are a Self-starter, Hustler and Curious to Learn
- Have an understanding of fundamental design principles behind a scalable application
- Thrive in an early-stage startup environment with less stability and more ambiguity
- Have an interest in financial products and/or cryptocurrency

About AJACKUS
About
Ajackus is a people-centric technology company that helps small to medium-sized businesses and digital startups grow faster. With 11 years of experience in creating purposeful impact, we assist clients in enhancing their technological capabilities by building highly efficient and accountable remote technology teams that use a patented architecture to create secure and scalable business solutions.
We’ve been recognized as a ‘Great Place To Work’ and are intentional about creating a diverse and flexible culture for our team. We believe in our values, our culture, and in providing a platform for every individual to share their suggestions and ideas through an ownership-based model. For our strong ethics and value system, we have been recognized by the Government of India under the 'Companies that Care' initiative.
Ajackus has team members working from every part of India, our hybrid work policy allows us the flexibility and choice to work from anywhere while being productive and efficient. We provide a lucrative bouquet of benefits that don't just focus on great compensation structure but cover the holistic perspective of an associate's life.
Our solutions have saved lives (Healthcare), brought transparency in commerce (Fintech), helped people with the assets for life (Real-Estate), and allowed people to build on top of what we have created (Open Source). Besides these, we have extensively explored emerging technologies like IoT, AI/ML, and worked in industries like electronics, telecommunication, e-commerce, mental health & wellness, travel, media & publishing, entertainment, etc.
Our philosophy is simple, we may not know all the answers, but we know how to find all answers. Come, join us, in this journey to create a true impact in the world!
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8–12 years of experience in Java application development.
Strong hands-on experience with Java, Spring, Spring Boot, and Hibernate/JPA.
Proficiency in SQL and relational databases (Oracle, SQL Server, PostgreSQL, or MySQL).
Experience in SQL query optimization, indexing, execution plan analysis, and database performance tuning.
Knowledge of REST APIs, Microservices, Maven/Gradle, Git, and JUnit.
Familiarity with CI/CD tools and Agile methodologies.
About Wissen Technology:
· The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.
· Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains. We help clients build world class products.
· Our workforce consists of 550+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.
· Wissen Technology has grown its revenues by 400% in these five years without any external funding or investments.
· Globally present with offices US, India, UK, Australia, Mexico, and Canada.
· We offer an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
· Wissen Technology has been certified as a Great Place to Work®.
· Wissen Technology has been voted as the Top 20 AI/ML vendor by CIO Insider in 2020.
· Over the years, Wissen Group has successfully delivered $650 million worth of projects for more than 20 of the Fortune 500 companies.
· The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
We have served clients across sectors like Banking, Telecom, Healthcare, Manufacturing, and Energy. They include the likes of Morgan Stanley, MSCI, State Street Corporation, Flipkart, Swiggy, Trafigura, GE to name a few.
Java Backend Developer (6–9 Years)
Mandatory Skills:
- Strong Core Java (Java 8/11/17)
- Spring Boot
- Microservices Architecture
- RESTful API Development
- Collections, Multithreading, Java 8 Streams
- SQL (Oracle/MySQL/PostgreSQL)
- JPA/Hibernate
- Git, Maven, Jenkins
- Unit Testing (JUnit/Mockito)
Good to Have:
- Kafka/Event-Driven Architecture
- Docker/Kubernetes
- Cloud (AWS/GCP/Azure)
Responsibilities:
- Design and develop scalable backend microservices.
- Build secure REST APIs for enterprise applications.
- Write clean, optimized, production-quality code.
- Debug production issues and perform code reviews.
- Work in Agile teams and contribute to CI/CD pipelines.
Experience: 6–9 Years
Location: Bangalore / Mumbai / Chennai (Hybrid)
We are seeking a skilled Node.js + Python Developer to join our team. The successful candidate will be responsible for developing and maintaining web applications using Node.js and Python. The ideal candidate will have a strong understanding of both Node.js and Python, as well as web application development. Responsibilities:
Developing and maintaining web applications using Node.js and Python
Write clean and efficient code that adheres to Node.js and Python coding standards
Collaborate with other developers and team members to design and implement new features
Troubleshoot and debug issues in existing code
Create and maintain technical documentation
Requirements:
Strong knowledge of Node.js and Python
Familiarity with front-end technologies such as HTML, CSS, and JavaScript
Experience with MySQL/Mongo and database design
Good understanding of object-oriented programming and design patterns
Strong problem-solving skills and attention to detail
Good communication skills and ability to work in a team environment
Preferred Qualifications:
Experience with popular Node.js frameworks such as Express or Koa
Experience with OpenAi APIs
Knowledge of machine learning and data science libraries in Python such as TensorFlow, Scikit-learn, and Pandas
Experience with RESTful API development
Experience with payment gateway integrations
Designation: Technical Lead (ABL_SS_272)
Position description:
- Work with Product and Engineering leaders to drive and implement platform and product vision.
- Leverage deep and wide knowledge of technology stack to recommend appropriate architecture and design solutions, and provide technical leadership to a team of rock star Software Engineers.
- Translate the impact of design choices on non-functional attributes like scalability, performance, availability, and security.
- Create large-scale, multi-tiered, distributed web applications with databases, and designing web services, APIs, data models, and schemas, using SQL or NoSQL.
- Experience with Cloud environments, such as AWS.
- Comfortable working with Windows and Linux environments.
- Work with different data storage solutions such as Postgres, Oracle, SQL Server, ElasticSearch, SQL, Hadoop, or MongoDB.
- Experience delivering high-quality software following continuous delivery and using code quality tools (JIRA, GitHub, Jenkin, Hudson, Sonar, and Fortify, etc.).
- Drive adoption of best practices across the Software Engineering Lifecycle, including reviews, source control, build processes, continuous integration, and deployment.
- Develop and maintain cross-functional relationships and alignment.
Primary Responsibilities:
- Application Development using Golang / C++.
Reporting Department: Application Development and Maintenance (1991)
Educational qualifications preferred Degree: Bachelors degree
Required Skills:
- Experience of building scalable architectures
- Hands-on experience with GoLang, Node Js, C++ or Java or any other Open Source technologies/ Cloud Servers
- Experience in developing software using a formal & structured development methodology
- Ability to work in a collaborative team environment
- Experience with test-driven development & proper unit testing of code
- An iterative approach to development, using short development cycles & frequent builds
- Object-oriented programming/ Object Oriented Design (OOP/OOD)
- Ability to develop secure solutions & knowledge of industry best practices regarding information security & defensive development
Responsibilities
-
Writing scalable, robust,, testable, efficient, and easily maintainable code
-
Translating software requirements into stable, working, high performance software
-
Playing a key role in architectural and design decisions, building toward an efficient micro services distributed architecture
-
(Add other relevant responsibilities here)
Skills
-
Strong knowledge of Go programming language, paradigms, constructs, and idioms
-
Knowledge of common Goroutine and channel patterns
-
Experience with the full site of Go frameworks and tools, including:
- Dependency management tools such as Godep, Sltr, etc.
- Go’s templating language
- Go’s code generation tools, such as Stringer
- Popular Go web frameworks, such as Revel
- Router packages, such as Gorilla Mux
-
Ability to write clean and effective Godoc comments
-
Familiarity with code versioning tools (such as Git, SVN, and Mercurial)

• Architecture: Knowledge of data structures and an eye for architecture.
• Strong coding/debugging abilities: You have advanced knowledge of at least one
programming language, and are happy to learn more. Either Go or Java
• Distributed Systems: Experience building distributed systems at scale.
• Fast learner:
• A team player:
• Design and business acumen
Basic Qualifications
• 8 years of experience profeciency in Java or Go language and in handling large data systems
• Proficiency in Spark and related big data handling architectures• Proficiency in SQL
You will be expected to design, develop and maintain large-scale complex backend web
applications.
You will be expected to rapidly learn and apply relevant new technologies.
You will be having a high level of interaction with business and product stakeholders.
You will be working on the entire web application stack, which includes:
o Web server hosting
o RESTful communication
o Message brokering
o Backend application layer, which includes the service and domain layers
o Data layer for persistence or caching
You will be participating in an agile software development cycle, which includes:
o Design
o Development
o Code Review
o Unit and Integration Testing
o Release
As a senior developer, you will be expected to contribute to design, code review, refactoring, and
project management.
You will be exposed to the following technologies:
o Web application frameworks: Ruby on Rails, Node.js, Java Play, Vert.x, AIOHTTP, AWS
Lambda
o Languages: Ruby, Java, Kotlin, Javascript, Python
o Data stores: PostgreSQL, Aerospike, Redis, Amazon Redshift
o Communication: HTTP, Amazon SQS, Sidekiq, Amazon SNS
o Server Management: Amazon ECS, Docker
Product Overview
You will be contributing to products concerning both customers and partner drivers.
Product sectors include:
o Growth: You’ll build tools to help boost user growth on the platform including our industry
best driver on-boarding, training and certification system, referral system, and lead
management models.
o Lifecycle Management: Build tools to help users engage with the platform better, which
includes rewards and recognition module, subscription service, account management tools,
partner and customer wallets and payout modules, and churn detection systems among
others.
o Transaction Experience: You’ll help deliver the most delightful booking experience to our
customers and drivers. As part of this team, you’ll be responsible for our core booking
system, pricing and payment systems, location tracking and filtering services, fraud
prevention systems, and in-app ticketing and support among others.
o Fulfilment: As part of the fulfilment team, you’ll work on systems which ensure high degree
of ride fulfilment on the platform. Tools including allocation methodologies and system,
dynamic pricing, dynamic partner routing, and partner re-activation tools among others.
o Enterprise Solutions: You’ll help Porter’s enterprise customers achieve delivery excellence.
You’ll build tools for contract management, fleet management, fleet and route optimisation
tools, alerting and monitoring tools, and analytics suite among others.









