
- Programming Language: Python (Strong knowledge)
- Concurrency & Parallelism: Multithreading, Multiprocessing, AsyncIO, ThreadPoolExecutor, Future, concurrent.futures
- Memory Management: Reference Counting, Global Interpreter Lock (GIL)
- Distributed Computing: Dask, Apache Spark (Preferred)
- Data Processing: NumPy
- Inter-Service Communication: GRPC, REST API
- Containerization & Orchestration: Docker, Kubernetes
- Software Development Practices: Code Optimization, Debugging, Performance Tuning
- Communication & Problem-Solving: Technical Documentation, Team Collaboration, Asking for Clarity When Needed
Skills And Expertise
- Python,
- Multithreading,
- Multiprocessing,
- Dask, Apache Spark,
- NumPy,
- REST API,
- Docker,
- Kubernetes,
- Code Optimization

About Affine
About
Affine is a pioneering consulting firm that specializes in AI-driven enterprise transformation. With a robust focus on Generative AI, we deliver cutting-edge solutions that redefine industry standards.
Our comprehensive capabilities span the entire analytical value chain, from data to insights and transformation. We provide Cloud Advisory and Assessment, Cloud Migration, Data Lake Design and Development, Big Data Powered Advanced Analytics, AI & Deep Learning Solutions, and Deployment Consulting with Architecture Design.
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JOB DESCRIPTION
Experience: 3-8 years
Location- Mumbai
Wissen Technology is now hiring for a Java Developer - Mumbai 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. - 3-8 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.
We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and
a deep interest in scalable, low-latency systems.
Key Responsibilities
• Develop, maintain, and optimize backend applications using Python.
• Build and integrate RESTful APIs and microservices.
• Work with relational and NoSQL databases for data storage, retrieval, and optimization.
• Write clean, efficient, and reusable code while following best practices.
• Collaborate with cross-functional teams (frontend, QA, DevOps) to deliver high quality features.
• Participate in code reviews to maintain high coding standards.
• Troubleshoot, debug, and upgrade existing applications.
• Ensure application security, performance, and scalability.
Required Skills & Qualifications:
• 2–4 years of hands-on experience in Python development.
• Strong command over Python frameworks such as Django, Flask, or FastAPI.
• Solid understanding of Object-Oriented Programming (OOP) principles.
• Experience working with databases such as PostgreSQL, MySQL, or MongoDB.
• Proficiency in writing and consuming REST APIs.
• Familiarity with Git and version control workflows.
• Experience with unit testing and frameworks like PyTest or Unittest.
• Knowledge of containerization (Docker) is a plus.
Requirements:
- Bachelor's degree in engineering with a specialization in computer science or a related field.
- 5+ years of experience as a software engineer in a product development setting.
- Love of technology and experience with one or more programming languages: Java and Python.
- Experience in full-stack development, including designing APIs and integration patterns, implementing security, and implementing frameworks for unit and end-to-end testing.
- Experience with microservices architecture.
- Experience in one or more frameworks like FastAPI, Spring, GRPC, Flask, etc.
- Extensive experience in a test-driven development environment.
- Understanding of CI/CD practices, including code check-in policies, automated unit tests, automated code deployments, etc.
- Ability to grasp new technologies and use them effectively to create industrial-strength software.
Preferred Qualifications:
- Good communication skills. You can communicate well in the English language with product managers, your team members, and external stakeholders to understand their needs and convey yours in a clear, precise mannerverbally or in writing.
- Strong collaboration skills. You have demonstrated the ability to work with both senior and junior technical professionals and get work done. You quickly earn the trust of the people you work with. People enjoy and have fun working with you.
- Deadline oriented. You understand that deadlines are meant to be met. Challenges will surface, and obstacles and roadblocks will cause delays, but you plan for them in advance and still ship your features on time to meet your commitments.
- Bias for action. Your default setting is to take action and not wait for things to happen. You love to learn about new technologies and advancements in the software industry.
Benefits at 314e Corporation:
- Medical Benefits
- Office Game space
- Referral Program
- Holiday parties
Job Summary:
We are looking for a skilled and motivated Backend Engineer with 2 to 4 years of professional experience to join our dynamic engineering team. You will play a key role in designing, building, and maintaining the backend systems that power our products. You’ll work closely with cross-functional teams to deliver scalable, secure, and high-performance solutions that align with business and user needs.
This role is ideal for engineers ready to take ownership of systems, contribute to architectural decisions, and solve complex backend challenges.
Website: https://www.thealteroffice.com/about
Key Responsibilities:
- Design, build, and maintain robust backend systems and APIs that are scalable and maintainable.
- Collaborate with product, frontend, and DevOps teams to deliver seamless, end-to-end solutions.
- Model and manage data using SQL (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB, Redis), incorporating caching where needed.
- Implement and manage authentication, authorization, and data security practices.
- Write clean, well-documented, and well-tested code following best practices.
- Work with cloud platforms (AWS, GCP, or Azure) to deploy, monitor, and scale services effectively.
- Use tools like Docker (and optionally Kubernetes) for containerization and orchestration of backend services.
- Maintain and improve CI/CD pipelines for faster and safer deployments.
- Monitor and debug production issues, using observability tools (e.g., Prometheus, Grafana, ELK) for root cause analysis.
- Participate in code reviews, contribute to improving development standards, and provide support to less experienced engineers.
- Work with event-driven or microservices-based architecture, and optionally use technologies like GraphQL, WebSockets, or message brokers such as Kafka or RabbitMQ when suitable for the solution.
Requirements:
- 2 to 4 years of professional experience as a Backend Engineer or similar role.
- Proficiency in at least one backend programming language (e.g., Python, Java, Go, Ruby, etc.).
- Strong understanding of RESTful API design, asynchronous programming, and scalable architecture patterns.
- Solid experience with both relational and NoSQL databases, including designing and optimizing data models.
- Familiarity with Docker, Git, and modern CI/CD workflows.
- Hands-on experience with cloud infrastructure and deployment processes (AWS, GCP, or Azure).
- Exposure to monitoring, logging, and performance profiling practices in production environments.
- A good understanding of security best practices in backend systems.
- Strong problem-solving, debugging, and communication skills.
- Comfortable working in a fast-paced, agile environment with evolving priorities.
Job Role:
As a senior R&D Java Engineer, you will work in a highly collaborative, dynamic environment. Your work will impact a lot to make world bit safer place. You’ll design creative solutions to problems faced by companies due to cyber attacks. You will work closely with other partners such as product and pre-sales managers, UI developers, and other software engineers to develop new product offerings and improve the efficiency of the solution.
Responsibilities:
- Develop, modify, and implement, the software components of Nimesa Product.
- Assist QA Engineers with the creation and review of the test cases
- Write junits and test automation if anything required to have the coverage
- Assist other Engineers with the creation of detailed software design specifications.
- Keep an eye out for technology trends, and open-source projects that can be used.
Requirements:
- Bachelor's or Master's degree in computer science or relevant fields.
- At least 3+ years experience in end-end software development for large design and coordinating project teams in the SaaS industry.
- Software development experience with Java and Spring / Springboot, RabbitMQ, MYSQL etc
- Must have worked on fairly complex products from scratch
- Strong knowledge of data structure, multithreading and other comp science concepts (SQL or NoSQL)
- Excellent social and communication skills
- Demonstrated expertise in building Web Applications, Enterprise Applications, Web Services, and Management at scale is a requirement.
- Experience with Design patterns
- Knowledge of cloud-based architectures, deployment and operational aspects of Amazon Web Services cloud
Good knowledge of Python frameworks such as Django, CherryPy, etc.
Good understanding of REST API
Experience with JavaScript, jQuery, HTML and CSS
Build back-end features in Python that are efficient.
Integrate front-end and back-end components into the application
Develop integrations with third party applications (mostly web-based).
Working Knowledge of SQL and databases.
Bachelor’s Degree in Computer Science Engineering or other related fields.
Understand the needs of the client and Implement functional requirements accordingly.
Agile development methodology
Good communication (verbal and written)
- At least 4 years of experience programming in Python.
- Develop application code and modules for business and technical requirements.
- Tune up design for maintainability, scalability and efficiency.
- Resolve and troubleshoot problems and complex issues.
- Perform unit tests and fix bugs.
- Integrate best qualitative practices in design and development aspects of programs.
- Ability to mentor subordinates.
- Excellent communication skills.
Today, MoEngage is an industry pioneer in the space and engages more than 350M devices. This includes approximately 40B events tracked per month, 30B+ messages sent, to millions of users across the globe.
As part of the Engineering team at MoEngage, here are some things you can expect:
- Take ownership and be responsible for what you build - no micro management
- Work with A players (some of the best talent in the country), and expedite your learning curve and career growth
- Make in India and build for the world at scale of 350M active users, which no other internet company in the country has seen
- Learn together from different teams on how they scale to millions of users and billions of messages.
- Explore the latest in topics like Data Pipeline, MongoDB, ElasticSearch, Kafka, Spark, Samza and share with the team and more importantly have fun while you work on scaling MoEngage.
Skills required:
- Minimum 2 year experience in Android Development
- Good understanding of Java Programming language
- OOPs concepts
- Multi-threading
- Good understanding of Android Framework
- Framework Components
- Data Storage/Persistence
- Offline support for application
- Rest APIs
Good to Have:
- Knowledge and understanding of Kotlin
- Experience in building dynamic UI
- Knowledge of hybrid frameworks like React-Native/Cordova/Xamarin/Flutter, etc.











