11+ Object-relational mapping Jobs in India

Designing and developing high-volume, low-latency applications for
critical systems and delivering high-availability and performance
• Contributing in all phases of the development lifecycle
• Writing well designed, testable, efficient code
• Test cases should be upto the mark
• Performance tuning knowledge is a must. Experience is an added advantage.
• In Backend – fundamentals of all languages is a must• Good hands-on software development experience with proven working experience
in Python development
• Expert in Python, with knowledge of at least one Python web framework (such
as Django, Flask)
• Familiarity with some ORM (Object Relational Mapper) libraries
• Able to integrate multiple data sources and databases into one system
• Understanding of the threading limitations of Python, and multi-process
architecture
• Strong unit test and debugging skills
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and
CSS3
• Understanding of memory model/GC from performance point of view.

JOB DESCRIPTION

Experience: 5-8 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. - 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

Role Overview:

We are seeking a Tech Lead (5–14 yrs experience) to design, build, and scale the technology

foundation for our Support Excellence function. This role sits at the intersection of engineering,

product, and operations ensuring that our internal teams and, eventually, our end users

experience seamless, efficient, and data-driven support.

You will lead a small but high-impact team of engineers, own the support tooling roadmap, and

implement solutions that handle ticket triage, data quality issues, automation, and integrations

with our healthcare SaaS platform.

This is a hands-on technical leadership role ideal for someone who thrives on solving

operational challenges through technology, building frameworks from scratch, and enabling

customer-facing and internal support teams to scale effectively.

Key Responsibilities

1. Build & Enhance Support Platform:

● Own the engineering roadmap for support tooling — ticketing systems, triage workflows,

knowledge bases, and automation bots.

● Design and implement scalable support frameworks, ensuring fast triage, data-driven

escalation, and high-quality resolution.

● Integrate support tooling with product backend, CMS, and analytics systems to enable

context-aware assistance.

2. Technical Leadership & Delivery:

● Lead a small team of engineers (SEs and SSEs), providing guidance on design, architecture,

and coding standards.

● Stay hands-on with coding and reviews while enabling the team to deliver high-quality,

maintainable solutions.

● Partner closely with Program Managers and Business Analysts to translate requirements

into technical execution.

3. Automation, Data & AI-Driven Support:

● Implement automation workflows (bots, routing, notifications) to reduce manual load and

optimize SLA adherence.

● Drive the adoption of AI/ML solutions for ticket classification, triage, and predictive

resolution.

● Build analytics dashboards to track support KPIs (FRT, TTR, resolution quality).

● Partner with Product Managers, Designers, and Engineers to ensure delivery fidelity.

● Restore transparency and speed between business stakeholders and tech teams.

4. Cross-functional Collaboration:

● Work with Product, QA, Customer Success, and Ops to ensure support needs are captured

early in the roadmap.

● Serve as the engineering voice in discussions on escalation flows, release readiness, and

customer-facing support enablement.

● Collaborate with content and ops teams to power self-service experiences (knowledge

bases, FAQs, in-app help).

5. Documentation & Knowledge Management:

● Maintain technical documentation for support tooling, workflows, and integrations.

● Contribute to knowledge bases (internal + external) alongside ops and content teams.

● Foster a documentation-first culture to enable faster onboarding and smoother

collaboration.

What We’re Looking For

Must-Have

● 5–7 years of experience in software engineering, with at least 2+ years in a senior/lead

role.

● Proven track record in building internal platforms, support tools, or automation systems.

● Strong technical skills: Python/Node/Java, SQL, cloud services (AWS/GCP), and integration

experience with ticketing/support platforms (e.g., Zendesk, Freshdesk, ServiceNow, Jira

Service Management).

● Experience leading small teams and owning delivery from design → build → release.

● Excellent problem-solving skills with a bias for execution in fast-paced environments.

Nice to Have

● Exposure to SaaS or healthcare platforms with multi-tenant architecture.

● Familiarity with AI/ML-driven support solutions (classification, prediction, NLP chatbots).

● Hands-on experience with support metrics and dashboards (CSAT, SLA adherence, TTR).

● Knowledge of documentation frameworks (Confluence, Notion, Git-based wikis).

Requirements:

• Proficient in fundamental Software Design Principles, Data Structures, Algorithms, Problem Solving and Complexity Analysis.
• Proficient in programming languages like Python/Java/Javascript/Golang or similar.
• Strong understanding of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations.
• Hands-on Experience with SQL/NoSQL databases such as Postgres, Mysql, MongoDB.
• Hands-on experience with GIT, CI/CD, REST APIs and Cloud ( AWS/ GCP/ Azure) will be preferred.
• Understanding of Microservice Architecture and System Design Principles is a plus.
• Self-driven, detail-oriented and Strong sense of ownership, urgency, and ability to deliver great work.
• Demonstrated expertise in developing, releasing and maintaining large scale software applications.

• To take lead and manage the backend team.
• Taking ownership and developing new micro services/systems to improve the products.
• Managing and adding on to our linux based content management system as well as our web servers.

• 4+ years of hands-on experience working with serverless architecture.
• Hands-on experience with products at a scale of > 50K DAUs.
• Should be able to architect and implement complex services/systems in a simple and scalable manner.
• Self starter with the ability to lead a team.
• Should be an expert in: Python. AWS Lambda, RDS and EC2 SQL databases, specifically postgresql. NOSQL Database, specifically dynamoDB.
• Should be able to write automated test cases for developed code.
• Should be proficient in the linux environment.
• Having the following skills will an added bonus: Experience developing with Neo4j databases. Firebase services. * Experience working with Docker and ECS.

• Your word counts You’ll get to play a key role in shaping up the product roadmap and will be involved in every stage
• Learning never stops With  advancing into the growth stage, there is immense potential and relevance to apply new developments you learn in your domain
• Sponsored training Do you want to learn something that helps improve your productivity or knowledge? We’ll sponsor that
• Remote friendly Even before Covid, half of us worked from home. Heck, you want to work from a village? Go for it.

• Healthy company culture We nurture a conducive environment for your personal and professional growth, and take extreme care to make sure you are happy at work
• Everyone gets to lead You own your idea, and you lead it’s execution
• Smart work is what matters with us We don’t count hours. We value getting the work done
• Teammates who will sing and jam with you

CommerceIQ is a well funded fast growing enterprise SaaS platform that is helping brands grow and sell more on e-commerce channels through its machine learning technology. Are you excited about building distributed crawling engine at global scale that will crawl and parse 1000’s of websites with 10+ million crawls on a daily basis? Would you enjoy building something as ambitious as “Google/Facebook Ad platform” for Amazon (and other e-commerce retailers)? Does building a CI/CD and containerisation framework that will allow our products to be released and deployed every week across dozens of geographies and data centers seamlessly excite you? Do you find building machine learning models that will optimize billions of dollars in ad and promotions spend exhilarating? Do you find it super exciting to build a plug and play product UI platform where leaders of brands will spend hours daily (almost as much as an email inbox) to optimize their business? We can keep writing, but you will get the idea.

In our journey of building and scaling CommerceIQ, Engineers and data scientists in our team tackle these and many more problems daily. If you are as excited as we are after reading this, we would love to talk to you! 30+ global brands including Kellogg, Unilever, Johnson & Johnson, MARS, Nestle, Logitech and many more trust our product to manage their growth on Amazon. If you are excited about building product that will write the script for how brands sell and grow on e-commerce channels please reach out to us.

Are you ready to power intelligent commerce? @CommerceIQ, you will :

• You will be responsible for developing, testing and releasing features within time and with high quality that will drive revenue and margin impact to top brands.

• You will be designing your own features keeping in mind the scale and high availability of the systems. • You will be working with the team and expected to perform code reviews, conduct design discussions and mentor other developers.

•You will be the owner of your feature and work directly with product teams to drive customer impact.

• You will be expected to participate in all phases of the software development cycle as part of a Scrum team.

Experience : 3+ Years in developing in designing and developing complex and scalable software modules..

Skillset : • The ideal candidate will be an experienced Java developer with exceptional software system design, problem solving, and object-oriented coding skills

• Experience with distributed transaction-processing systems or asynchronous messaging technology is required.

• Good understanding of system performance trade-offs, load balancing, and engineering for high availability.

• Obsessed about building quality software and owning end to end responsibility for the developed features.

• Understanding of enterprise information systems, service oriented architectures, and operational data stores is a plus

• BS or MS in Computer Science/Engineering, Mathematics, Statistics or similar degree from a top tier institution

Responsibilities:

• Strong Technical Chops: You should know how to build highly scalable, robust, and fault-tolerant services that support our unique rate-of-growth requirements.
• You should be on top of the latest architectural trends.
• Fast Learners: We are looking for folks who thrive on new technologies and don't believe in one-size-fit all solutions.
• You should be able to adapt easily to meet the needs of our massive growth and rapidly evolving business environment.

• You understand requirements beyond the written word.
• Whether you're working on an API used by other developers, an internal tool consumed by our operation teams, or a feature used by millions of customers, your attention to details leads to a delightful user experience.

Requirements:

• Strong knowledge of MySQL, NoSQL, PostgreSQL, ElasticSearch.
• Experience in Java and web technologies.
• Experience in any one scripting language like Python.
• Hands-on experience with systems that are asynchronous, RESTful and demand concurrency.
• Knowledge of best software engineering practices for all stages of software development life cycle, including coding standards, code reviews, testing and deployment.