Java Back End

Job Title : Senior .NET Developer

Experience : 8+ Years

Location : Trivandrum / Kochi

Notice Period : Immediate

Working Hours : 12 PM – 9 PM IST (4-hour mandatory overlap with EST)

Job Summary :

We are hiring a Senior .NET Developer with strong hands-on experience in .NET Core (6/8+), C#, Azure Cloud Services, Azure DevOps, and SQL Server. This is a client-facing role for a US-based client, requiring excellent communication and coding skills, along with experience in cloud-based enterprise application development.

Mandatory Skills :

.NET Core 6/8+, C#, Entity Framework/Core, REST APIs, JavaScript, jQuery, MS SQL Server, Azure Cloud Services (Functions, Service Bus, Event Grid, Key Vault, SQL Azure), Azure DevOps (CI/CD), Unit Testing (XUnit/MSTest), Strong Communication Skills.

Key Responsibilities :

• Design, develop, and maintain scalable applications using .NET Core, C#, REST APIs, SQL Server
• Work with Azure Services: Functions, Durable Functions, Service Bus, Event Grid, Key Vault, Storage Queues, SQL Azure
• Implement and manage CI/CD pipelines using Azure DevOps
• Participate in Agile/Scrum ceremonies, collaborate with cross-functional teams
• Perform troubleshooting, debugging, and performance tuning
• Ensure high-quality code through unit testing and technical documentation

Primary Skills (Must-Have) :

• .NET Core 6/8+, C#, Entity Framework / EF Core
• REST APIs, JavaScript, jQuery
• SQL Server: Stored Procedures, Views, Functions
• Azure Cloud (2+ years): Functions, Service Bus, Event Grid, Blob Storage, SQL Azure, Monitoring
• Unit Testing (XUnit, MSTest), CI/CD (Classic/YAML pipelines)
• Strong knowledge of design patterns, architecture, and microservices
• Excellent communication and leadership skills

Secondary Skills (Nice to Have) :

• AngularJS/ReactJS
• Azure APIM, ADF, Logic Apps
• Azure Kubernetes Service (AKS)
• Application support & operational monitoring

Certifications (Preferred) :

• Microsoft Certified: Azure Fundamentals
• Microsoft Certified: Azure Developer Associate
• Relevant Azure/.NET/Cloud certifications

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.

Why this role exists:

You’ll own our data pipelines—ingesting, cleaning, and serving fashion/e-commerce data at scale—so the team (and founder) can focus on building new capabilities. If you love end-to-end ownership and turning messy web data into reliable, queryable systems, this role is your playground.

What you’ll do:

• Ingestion at scale: Design, build, and operate resilient crawlers/scrapers with rotation, rate-limits, backoff, and change-tolerance.
• Robust pipelines: Normalization, deduping, schema evolution, enrichment, and SLAs for freshness & completeness.
• Data stores & caching: Model products/variants/attributes in PostgreSQL, manage Redis for caching/queues, and keep costs predictable.
• Observability & quality: Instrument with metrics/tracing, add data QA checks, alerts, and auto-healing where sensible.
• Performance & reliability: Optimize throughput, memory, I/O, and infra spend; design for retries, idempotency, and correct delivery semantics.
• Collaboration: Partner with search/ML/product teams; write crisp docs; raise the bar in reviews; mentor where helpful.

Must-haves:

• Super high ownership: End-to-end closure on tasks you lead.
• 3.5+ years building backend systems, preferably in Python with production ownership.
• Strong data pipeline experience (batch/stream): schema design, deduplication, and backfills.
• Hands-on with PostgreSQL/MySQL and Redis (caching, rate-limits, queues).
• Real-world web scraping: requests/httpx/aiohttp, BeautifulSoup/lxml/Scrapy/Playwright, anti-bot tactics, respectful crawling.
• Concurrency & async (asyncio, multiprocessing), robust error handling, idempotent jobs.
• Solid testing habits and bias for simple, maintainable code.

Nice-to-haves:

• Message queues/streams: Kafka, RabbitMQ, SQS.
• Workflow schedulers: Airflow, Prefect.
• GraphQL; search tech (Elasticsearch/OpenSearch).
• Cost/perf tuning, on-call pragmatism, or prior startup/founding team experience.

How we work:

• High ownership, fast shipping, clear interfaces, strong documentation.
• We optimize for time to go live—startups that succeed outpace those that don’t.
• Competitive salary + meaningful ESOPs.
• (Optional) Work from our hacker-house on MG Road, Gurgaon.

Hiring process (fast closures)

1. 30-min technical deep-dive
2. Take-home (optional)
3. Founder conversation & references

Qualifications

• Bachelor's Degree or equivalent experience is required
• A minimum of 8-10 years of experience working in an IT environment
• At least 6-8 years of experience as a developer.
• Experience leading complex projects/tasks
• Strong hands-on experience with a variety of code, interface, API, and database concepts
• Experience in full project life cycle development for systems and applications
• Experience integrating and customizing business applications
• Excellent oral and written communication skills, with the ability to collaborate effectively with team members at all levels, from junior developers to senior managers and business customers
• A strong desire to learn the latest technologies and the ability to acquire knowledge quickly
• Exceptional problem-solving and debugging skills

Technical Knowledge & Skills

• Proficiency in programming languages such as JavaScript, .NET, C#, Java, PHP, PowerShell, and Regex
• Experience with ERP, HRIS, and CRM and Case Management systems
• Experience with ServiceNow (SNOW) glide extensions and JavaScript
• Experience with Microsoft SharePoint
• Proficiency in web services, Rest APIs, string manipulation, SQL, and creating stored procedures using XML/JSON and SOAP/REST protocols
• Experience with integrations using tools such as Power Automate, UiPath, MuleSoft, and IBM App Connect
• Possess knowledge of DBA tasks, including deployments, maintenance planning, string manipulation, and authoring SQL statements
• Experience using Source Code and Version Control Systems like Git
• Experience in cloud base deployment of applications
• Windows OS

Job Description:
We are looking for a Software Engineer with solid development experience in Java and related frameworks. We are looking for a self-motivated, go-getter, out-of-the-box thinker who is ready to work in a high-energy start-up environment. He/she must demonstrate a high level of ownership, integrity, and creativity.
Required Skills:
• Core Java (Proficient)
• Spring, Spring MVC OR Spring boot
• Hibernate – Good to have
• Oracle/MySQL DB - Hands-on (Intermediate)
• REST API and AWS– Good to have
• Hands-on experience of working on Spring boot based Microservices (Intermediate)
• Good to have knowledge of Microservice DevOps tools (Git, Jenkins, JUnits, deployment, monitoring, tracing)
• Sound understanding of core Java, SOAP Services, REST Services, Spring & maven, having expertized to work on Unix platform
• Should have working knowledge on web servers (e.g. Apache HTTP) and application servers (e.g. Tomcat, WebLogic)
• Should have a working knowledge of any relational database. Preferred will be Oracle and MySQL.
Roles and Responsibilities:
• You will design, develop, modify, debug and/or maintain software code according to functional, non-functional and technical design specifications.
• You will follow software engineering standards, applicable software development
methodology and release processes, to ensure code is maintainable, scalable,
supportable and demo the software products to stakeholders
• You will investigate issues by reviewing/debugging code, providing fixes and workarounds, and reviewing changes for operability to maintain existing software solutions.
• You will work within a team, collaborate and add value through participation in peer code reviews, provide comments and suggestions, work with cross-functional teams to achieve goals.

Why should you join Opcito?
We are a dynamic company that believes in designing transformation solutions for our customers with our ability to unify quality, reliability, and cost-effectiveness at any scale. Our core work culture focuses on adding material value to client products by leveraging best practices in DevOps like continuous integration, continuous delivery, and automation, coupled with disruptive technologies like cloud, containers, serverless computing, and microservice-based architectures.
Here are some of the perks of working with Opcito:
• Outstanding career development and learning opportunities
• Competitive compensation depending on experience and skill
• Friendly team and enjoyable work environment
• Flexible working schedule
• Corporate and social events.

Job ID: RP1001

Required Experience- 4+ years

Expected joining within two weeks

Preferred Skills:

• Good communication skills in English (Written and Oral)
• Strong knowledge of RDBMS concepts
• Strong analytical and problem-solving skills
• Experience in performance tuning
• Experience in interaction with the customer
• Technical skills Java, HTML, CSS, TypeScript, SpringBoot, Hibernate, Microservices
• Preferred Tools (SVN, GIT, Maven, Jenkins Jira Confluence)
• Ability to explore the application by himself/herself from the training provided

Responsibilities:

• New feature development or enhancement or change request activities (Requirement analysis, Requirement documentation, Design, Coding, Review, Testing and Release process)
• Defect Fixing (Defect analysis, route cause identification, Code change, testing, obtaining user confirmation and release process)
• Support tasks (Ticket analysis, data uploading, performance tuning, job monitoring, any analysis task, ReportGeneration and etc.,)
• Level 2 and Level 3 support (Support process adherence)
• Functional and technical or solution documentation preparation
• Execution will either be Waterfall or Agile
• The process needs to be followed as defined by RBEI or RBEI’s Customer
• Preparation & participation in the project status and review meeting

Job Locations: Bangalore, Pune, Chennai, Dehradun, Mohali, Panchkula, or Gurugram (Currently Remote)

Post – Java Full Stack Developer

Total Experience – 5 to 8 years

Relevant Experience – 3 Years plus

Salary – Good Hike on CTC

Location – Bangalore, Chennai, Pune

Qualification - Graduation is must

Industry – Information Technology

Mandatory Skills –  Java, react/Angular atleast 3 years of experience, cloud Technology, Micro services Architect

Desired Skills - Machine Learning and Artificial

Roles & Responsibilities

- To drive and shape the technical roadmap & delivery of our next Enterprise Cloud based Applications driven by AI,ML products that impact millions of users on a daily basis. You will partner with a wide range of stakeholders from product, data science, and business, own and evolve the roadmap and technical strategy to build game changing tech for various teams. This is a highly critical and visible role that has a tangible impact on both internal user and external customer experience, as well as the company's bottom-line

PLEASE REPLY WITH YOUR UPDATED CV and KINDLY REFER YOUR FRIENDS / COLLEAGUES FOR THIS JOB.

• Create a platform to change the way kids learn: Because company is solving a unique problem, we have the chance to reimagine education. Be it collaboration or puzzles or interactive videos or even 3D experiences, there is a huge scope for innovation. You can help us get there.
• Tackle challenging and impactful problems: You'd jump between product, marketing, internal tools, process — participating in every phase from inception to implementation. Absolutely no boredom.
• Join us at a magical time: We went through Y Combinator, have raised funding and are seeing strong traction with a very lean team. You get to be among the first employees in one of the strongest and most passionate teams in the EdTech space.

So, what will you do as a Full Stack Lead at company?

• As one of the early employees, there will be a lot on your plate. All the time!
• You'll take ownership and build new product features from start to finish. We love to hire ‘Product Engineers’ who care about “why” behind a feature and suggest changes to hit the objectives even better
• You'll build improvements to performance, reliability, and product polish — for example, improving the efficiency and performance of our replicated state systems.
• You will mentor new joiners, review the pull requests and help with expanding the team as we grow

This might be for you if...

• You have strong knowledge of both front and back end technologies
• You have been professionally coding for at least 4 years
• You have worked in a startup and relish the chaos and pressure
• You've built and maintained quality user interfaces that have reached a large audience, ideally while the product is experiencing rapid growth.
• You can readily learn most technologies as you go. To you, technologies are about tools and tradeoffs, not an ideology.
• You care about the business implications of anything you build. You're not just going after cool stuff — you understand the balance between craft, speed, and the bottom line.
• Bonus: You're fluent with Typescript, Python, Go, NodeJS, Postgres, Docker.
• Bonus: You're familiar with multiple frameworks such as React, Django
• Bonus: You understand AWS infrastructure and can put out a fire if one happens

As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward. 

Top Skills

•    You write high quality, maintainable, and robust code, often in Java or C++.

•    You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.

•    You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.

Roles & Responsibilities

•    You solve problems at their root, stepping back to understand the broader context.

•    You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.

•    You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.

•    You recognize and use design patterns to solve business problems.

•    You understand how operating systems work, perform and scale.

•    You continually align your work with Amazon’s business objectives and seek to deliver business value.

•    You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.

•    You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.

•    You communicate clearly with your team and with other groups and listen effectively. 

Skills & Experience

•    Bachelors or Masters in Computer Science or relevant technical field.

•    Experience in software development and full product life-cycle.

•    Excellent programming skills in any object oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.

•    Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.

•    Proficiency in SQL and data modeling.

Job description

Do you want to work with high traffic OLTP and OLAP systems that provide real value to retailers? Want to build real web applications that work across multiple channels and devices? In this critical role, the right candidate should have an entrepreneurial mind-set, have experience working across an application stack and a strong background in developing complex web experiences that are rich, responsive and interactive. The individual should have exhibited good technical leadership skills and be a highly motivated individual.

Role & Responsibility

• Exhibit strong technical knowledge, leadership skills and independent execution.
• A keen eye for good experiences. Understanding the experience from a customer perspective.
• Drive design discussion of complex features and own development of these modules across the application stack.
• Ability to adapt to changing business and product needs.
• Experience evolving the design and operation scale as new features are added to the product
• Mentor junior developers and ensure quality code output (via code reads, reading references, etc.) from them.
• Co-ordinate with internal teams and external partners in ensuring we build the best solution on time for the customer. Constantly looking at ways to innovate and improve the product.
• 8+ years of experience in Java & J2EE based Web Technologies & Frameworks with a focus in either Service Oriented Architecture or APIs. 
• Experience in designing scalable solutions in a large-scale distributed environment.
• Strong knowledge of web technologies, common web frameworks, networking, SQL and database technologies
• Well versed in software engineering principles, frameworks and technologies
• Strong debugging / troubleshooting skills.
• Ability to propose and defend solutions.
• Ability to work closely with product management, customer support, and  other engineering teams to continuously evolve and innovate the enterprise-class Products.