
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 - Java & Node / Rust /Python & Go
- 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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JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
Wissen Technology is now hiring for a Senior 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. - 5-8 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.
About Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Key Responsibilities
- Lead software development teams across all phases of the SDLC
- Provide technical leadership in coding, debugging, and system integration
- Define system scope, objectives, and technical solutions
- Act as primary technical point of contact for stakeholders
- Develop technical specifications, code, and testing strategies
- Manage change control, issue resolution, and release activities
- Ensure adherence to coding standards and security practices
- Design and implement REST API-based integration solutions
- Conduct code reviews and quality assurance checks
- Identify and mitigate technical risks
- Mentor developers and provide technical guidance
- Maintain documentation for development and testing
- Collaborate across teams to improve processes
- Stay updated with emerging technologies and industry trends
Knowledge / Skills
- Strong programming skills in JavaScript, Java, and Node.js
- Experience with Auth0 (Rules, Actions, MFA, Management API)
- Experience with AWS (Lambda, API Gateway, IAM, CloudFormation)
- Knowledge of Infrastructure as Code (CloudFormation/Terraform)
- Strong REST API design and integration expertise
- Understanding of IAM protocols (OAuth2, OIDC, SAML, JWT, PKCE)
- Experience with CI/CD pipelines using Git
- Strong analytical and problem-solving skills
- Excellent communication and leadership abilities
Education and Experience
- Bachelor’s degree in Computer Science or a related field
- 8–10 years of software development experience
- Experience leading development teams
- Experience in Agile/Scrum environments

Roles & Responsibilities :
- 1-2 years of hands-on experience in backend development with Java & Spring Boot.
- Build scalable and modular microservices for business-critical applications.
- Implement RESTful APIs and ensure high performance and responsiveness.
- Proficient with SQL databases (MySQL etc) Troubleshoot production issues and improve system reliability and scalability.
Responsibilities
-
Ability to translate Wireframes and PSD Designs into functional web apps using HTML5, AngularJS, React , Node.js, and Mongo
-
Binding of UI elements to JavaScript object models
-
Creating RESTful services with Node.js
-
Architect scalable web architectures
-
Work in a cross-functional team to deliver a complete user experience
-
Create Unit and Integration tests to ensure the quality of code
-
Be responsive to change requests and feature requests
-
Write code that is cross-platform and cross-device compatible
-
Ability to wear many hats and learn new technologies quickly
Responsibilities:
● Design, develop, test, and maintain software applications using Java technologies.
● Implement robust solutions using Spring MVC, Spring Boot, and Hibernate frameworks.
● Develop and optimize database operations with MySQL.
● Analyze and solve complex problems by applying knowledge of data structures and algorithms
Requirement -
Programming Languages & Technologies: Strong knowledge of Java (Core Java, Java 8+).
● Frameworks: Proficiency in Spring MVC, Spring Boot, and Hibernate. ● Algorithms and Data Structures: Good understanding and practical application of DSA concepts.
● Databases: Experience with MySQL – writing queries, stored procedures, and performance tuning.
● Version Control Systems: Experience with tools like Gi
Exp: 4-6 years
Position: Backend Engineer
Job Location: Bangalore ( office near cubbon park - opp JW marriott)
Work Mode : 5 days work from office
Requirements:
● Engineering graduate with 3-5 years of experience in software product development.
● Proficient in Python, Node.js, Go
● Good knowledge of SQL and NoSQL
● Strong Experience in designing and building APIs
● Experience with working on scalable interactive web applications
● A clear understanding of software design constructs and their implementation
● Understanding of the threading limitations of Python and multi-process architecture
● Experience implementing Unit and Integration testing
● Exposure to the Finance domain is preferred
● Strong written and oral communication skills
BlackLight Gaming is looking for a top-notch, ambitious and driven Node. js developer who is confident of creating, maintaining and further optimising highly scalable backend supporting our multiplayer mobile games which are played by millions of players. If you're hard-working, enthusiastic, dedicated, have fire in the belly to accept challenges, then BlackLight Games is the place for you.
What You Bring to the team:
- More than 3+ years of experience developing serverless applications using public cloud like Google Cloud/ AWS
- Knowledge of Node. js and frameworks available for it.
- Strong proficiency with JavaScript
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Distributed system development with an understanding of latency, scalability, scheduling, asynchronous programming, and reliability
- Understanding fundamental design principles behind a scalable application
- Experience with services common to serverless architectures, like: AWS Lambda, DynamoDB, IAM, Firebase Real Time Database, Google Cloud SQL, Cloud Tasks. It’s a bonus if you have worked on Google Cloud Project and Firebase.
- Solid Experience with NoSQL and SQL databases is required with proven experience of creating database schemas that represent and support business processes.
- Integration of multiple data sources and databases into one system.
- Experience with deploying, maintaining, debugging live systems, and end-to-end testing and analysis
- Experienced in creating micro-services based architectures, reusable components
- Experience building REST APIs and other common application architectures on the above services
- Experience building data processing pipelines
- Solid understanding of code, design, and development practices
- General comfort in exploring, assessing, and learning new frameworks
- High levels of integrity and professionalism, and an ability to channel maximum amounts of energy into the role delivering premium customer service at all times
- Adhere to different Project Management methodologies (Agile etc) and leverage different CI/CD tools
Extra Gems for:
- Google, AWS and/or Industry certifications.
- Familiarity with object storage such as AWS S3, Firebase Storage, in-memory caches such as Redis
- Demonstrated performance of threat modeling, risk assessment techniques, code reviews in the context of DevSecOps security
- Knowledge of Application Monitoring using tools like Google Stackdriver
- Broad familiarity with other languages like J2EE, Python as we write some code in these as well.
- Experience with Github and advanced Github features.
- Experience of working in Product industry
- Open source contributions, interesting hobby projects.
Why Us?
- High Growth Startup environment
- Company sponsored courses and education material
- Lots of learning opportunities
- Work with a super-talented team of professionals
- Informal work-culture, Casual Dress Code, multiple outings and trips
- Performance Based Bonus
- Competitive Salary
- Medical Insurance for you and your family
- Subsidies Lunch and Unlimited Snacks, Tea & Coffee in the house at all time
"Shypmax is India's first & only Cross border Logistics Platform backed by a contemporary product and premium service. We are one of the first IOSS ready courier service in India, focusing on compliance with
new regulations in the European Union (EU). We deliver to 220countries in the UK, USA, South East Asia, Australia, Europe, & Canada with 70+ carrier and network partnerships placed globally with a perfect
combination of technology and optimized shipping solutions."
Job Responsibilities:
Prior experience in deploying scalable infrastructure on the cloud.
Architect, design and develop web applications using Restful Services on Node.js.
Proficient understanding of code versioning tools, such as Git.
Lead code reviews to drive teams to the highest standards for Node.js web apps.
Strong background in algorithms, data structures, database design.
Experience in Node, Redis.
Experience in cloud infrastructure like google app engine/AWS/Heroku etc.
Design and create efficient RESTful endpoints for both internal and public consumption.
Participate in regular bug fixing Intimate knowledge of Git, Github, AWS, CDNs.
Experience with creating RESTful endpoints using the REST framework.
Developing high performing REST APIs for application functionality.
Necessary Requirement:
Min -1 years of Experience with Node.js
Min -1 years webhook Integration, Api Integration .
Hands on Experience working on Node. Js
Hands on Experience in REST APIs for application functionality.
Hands on Experience in cloud infrastructure
Architects are responsible for driving Technology & Best Practices in Engineering. We are a rapidly growing & constantly improving organisation. We seek very high levels of ownership in all individuals, especially leadership roles like this - Ownership of your team, your product. Going beyond your role & contributing to make the organisation & business better is an expectation.
Responsibilities:
- Actively participate in development along with team members for as much as 50% of their time, creating modules & systems that can then be treated as a working reflection of the best practices.
- Participating in code reviews, design reviews, architecture discussions.
- Being responsible for Scaling, Performance & Quality for the team
- Setting up best practices to help the team achieve the above and constantly thinking about improving the technology use are your responsibilities.
- Driving the adoption of these best practices around coding, design, quality, performance in your team and influence them for the entire organisation are also expectations from you.
- Experiment with new & relevant technologies and tools, and drive adoption while measuring yourself on the impact you are able to create
- Collaborate with Product Management and Product Development leaders in developing product visions and strategies.
- Define & drive implementation of long term technology vision for your product & team
- You will be the primary owner of the architecture of your product and will also be responsible for getting it reviewed, and making sure the system is built accordingly.
- Be an evangelist for technology & represent in external forums.
- Creating architectures & designs for new solutions around existing and new problem spaces
- Drive technology & tool choices for your team & be responsible for them.
Requirements:
- Quick & Excellent Problem solving skills for complex & large scale problems
- Exposure to a wide variety of problem spaces, technologies
- Very Strong System design and OO skills with a nifty ability to craft clean interfaces and operate at the right levels of abstraction
- Solid coding skills with ability to drive teams through massive refactoring exercise & improve coding standards across large code bases
- Deep knowledge, understanding & experience of working with a large variety of multi-tier architectures.
- Awareness of pitfalls & use cases for a large variety of solutions
- Deep understanding & experience of high performance web scale & real-time response systems with experience & expertise in a variety of large scale persistent systems including large databases
- Exposure to complete product development cycles - From inception to production to scaling up, supporting new requirements, re-architectures the Principle architects should have seen it all and ideally in multiple cycles.
- Should have been part of scalable product development cycles with either large data handling or large transaction processing exposure for 5 years
- Must have worked in a small setup (either a startup or a small & reasonably independent team)
- 8+ years of overall experience
- B Tech or higher in Computer Science or equivalent required
The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. You will be a lead developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and aleadership skills.
Responsibilities
- Writing clean, high-quality, high-performance, maintainable code
- Develop and support software including applications, database integration, interfaces, and new functionality enhancements
- Coordinate cross-functionally to insure project meets business objectives and compliance standards
- Support test and deployment of new products and features
- Participate in code reviews
Qualifications
- 5+ years of relevant work experience
- Mandatory experience in building scalable microservices on nodejs platforms
- Expertise in Object Oriented Design, Database Design, Service architecture
- Experience with Agile or Scrum software development methodologies
- Ability to multi-task, organize, and prioritize work








