"WPF Architect"

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. 

Experience: 4-8 years

Required Skills:

• 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.

Job Title: Java Developer

Java Developer – Job Description 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. - 5 to 14 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 clientfacing 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.

Key Responsibilities

Test Architecture & Design

• Architect test frameworks and infrastructure to validate microservices and distributed systems in multi-cluster, hybrid-cloud environments.
• Design complex test scenarios simulating production-like workloads, scaling, failure injection, and recovery.
• Ensure reliability, scalability, and maintainability of test systems.

Automation & Scalability

• Drive test automation integrated with CI/CD pipelines (e.g., Jenkins, GitHub Actions).
• Leverage Kubernetes APIs, Helm, and service meshes (Istio/Linkerd) for automation coverage of health, failover, and network resilience.
• Implement Infrastructure-as-Code (IaC) practices for test infrastructure to ensure repeatability and extensibility.

Technical Expertise

• Deep knowledge of Kubernetes internals, cluster lifecycle management, Helm, service meshes, and network policies.
• Strong scripting and automation skills with Python, Pytest, and Bash.
• Hands-on with observability stacks (Prometheus, Grafana, Jaeger) and performance benchmarking tools (e.g., K6).
• Experience with cloud platforms (AWS, Azure, GCP) and containerized CI/CD.
• Solid Linux proficiency: Bash scripting, debugging, networking, PKI management, Docker/containerd, GitOps/Flux, kubectl/Helm, troubleshooting multi-cluster environments.

Required Skills & Qualifications

• 6+ years in QA, Test Automation, or related engineering roles.
• Proven experience in architecting test frameworks for distributed/cloud-native systems.
• Expertise in Kubernetes, Helm, CI/CD, and cloud platforms (AWS/Azure/GCP).
• Strong Linux fundamentals with scripting and system debugging skills.
• Excellent problem-solving, troubleshooting, and technical leadership abilities.
• 
  

• Strong knowledge in Power BI (DAX + Power Query + Power BI Service + Power BI  Desktop
• Visualizations) and Azure Data Storages.
• Should have experience in Power BI mobile Dashboards.
• Strong knowledge of SQL.
• AAS Data model Deployment in Azure, Querying data from AAS to build Reports
• Experience in developing, optimizing, and administering Tabular Models in 'Azure Analysis service'.

• Design and Create AAS/OLAP/ Tabular cubes and automate processes for analytical needs.
• Good knowledge of DWH concepts.  
• Expertise in developing OLAP cubes and developing complex calculations, Aggregations, implementing a dynamic security model using DAX functions in - Azure Analysis service

GroundTruth is an advertising platform that turns real-world behavior into marketing that drives in-store visits and other real business results. We use observed real-world consumer behavior, including location and purchase data, to create targeted advertising campaigns across all screens, measure how consumers respond, and uncover unique insights to help optimize ongoing and future marketing efforts.

With this focus on media, measurement, and insights, we provide marketers with tools to deliver media campaigns that drive measurable impact, such as in-store visits, sales, and more.

Learn more at groundtruth.com.

We believe that innovative technology starts with the best talent and have been ranked one of Ad Age’s Best Places to Work in 2021, 2022, 2023 & 2025! Learn more about the perks of joining our team here.

Location: Remote, India

About Us

The bidding team is responsible for developing and maintaining our real-time advertising bidder and the data processes generating the index files powering it. Our bidder currently receives ~500k transactions per second on AWS infrastructure typically responding to internal bid requests in under 10ms. This is a high-volume low-latency system and the team focuses on technical excellence in C++, perl, and python to continuously improve cost performance while bringing new features and optimization strategies to market for our customers.

You will:

• Proactively work to develop the skills and behaviors of each team member, coaching and mentoring them toward success in their tasks and careers
• Collaborate with management, stakeholders, and the team to evaluate, plan, and deliver projects involving advertising software systems, components, and features
• Promote transparency regarding the team’s activities across the organization through documentation, structured processes, and effective communications
• Facilitate the team’s learning, growth, and maturity in their agile practices
• Lead by example writing production-ready front-end and backend-code with a continuous delivery & deployment pipeline on AWS
• Support employees by having regular 1:1 conversations, providing feedback, planning for and conducting quarterly reviews, scheduling time-off, facilitating training, providing recognition, and managing any personal or performance issues

You have:

• Education and professional experience: Bachelor’s degree in Computer Engineering or equivalent.
• 8+ experience in technology, including software development, architecture, or related areas.
• 2+ years of experience in team management or technical leadership.
• Primary Skills : C++14/17/20/23, perl, AWS, Git, STL
• Additional nice to have skills/certifications: Python, Apache Web Server, Nginx, Protocol Buffers, HAProxy, Redis, Kinesis, Sed, Awk, Athena

How you can impress us:

• A team player who is organized, flexible and willing to adapt
• Not afraid of new technologies and driven to learn
• A detail-oriented person, who catches problems early and adjusts
• A strong communicator who is able to collaborate with multiple business and engineering stakeholders and work through conflicting needs
• A problem solver who likes to dive deep into a problem, diagnose root causes and work with multiple teams to come up with a solution
• Eager to provide direction and build consistent processes in a maturing start-up culture
• A self-starter who can operate with minimal supervision

What We offer:

At GroundTruth, we want our employees to be comfortable with their benefits so they can focus on doing the work they love.

• Parental leave- Maternity and Paternity
• Flexible Time Offs (Earned Leaves, Sick Leaves, Birthday leave, Bereavement leave & Company Holidays) 
• In Office Daily Catered Breakfast, Lunch, Snacks and Beverages
• Health cover for any hospitalization. Covers both nuclear family and parents
• Tele-med for free doctor consultation, discounts on health checkups and medicines
• Wellness/Gym Reimbursement
• Pet Expense Reimbursement
• Childcare Expenses and reimbursements
• Employee referral program
• Education reimbursement program
• Skill development program
• Cell phone reimbursement (Mobile Subsidy program).
• Internet reimbursement/Postpaid cell phone bill/or both.
• Birthday treat reimbursement
• Employee Provident Fund Scheme offering different tax saving options such as Voluntary Provident Fund and employee and employer contribution up to 12% Basic
• Creche reimbursement
• Co-working space reimbursement
• National Pension System employer match
• Meal card for tax benefit
• Special benefits on salary account

Primary Responsibilities

• Architect and drive complex software performance improvement projects that mitigate the performance challenges of the product and establish new guidelines for future product features
• Work with the development team, and database administrators to analyze performance bottlenecks, make recommendations to address performance concerns, and co-design performance into new feature development
• Efficiently working with various profiling and monitoring tools to identify performance and concurrency bottlenecks, propose and implement optimizations to improve cloud product
• Review end-user usage patterns and customer logged performance defects and enhance performance test coverage based on gaps identified.
• Understand database internals, server and storage system design, application interactions with database queries and stored procedures and with other downstream systems
• Troubleshoot issues experienced by users and propose solutions

Basic Qualifications

• 8+ years of experience in implementing and driving software performance engineering projects and solutions. Advanced level experience with concurrency, multithreading, and distributed system architectures
• Experience analyzing performance bottlenecks with application code interfacing with databases using ORM Frameworks, cache layers, data storage, servers, networking, and database query protocols including developing stored procedures, SQL queries, and database applications
• Working knowledge of relational database internals (locking, consistency, replication, serialization, failover, recovery)
• Comfortable with Windows, SQL Server, .NET Framework/Core, GIT, Nuget, SPA, Modern UI Frameworks, ORM Framework NHibernate in terms of both tools and application development
• Passionate about finding software performance bottlenecks and optimizing code to produce a better customer experience
• Experience with APM (Application Performance Monitoring), RUM (Real User Monitoring), and other Dev tools used for Performance monitoring and analysis
• Experience with performance bottleneck analysis, system design for scaling

What Are You Going To Do? 

As a Salesforce Commerce Cloud Architect you will design and develop solutions for global brands. You will work with Delivery Managers, Developers, Quality Assurance engineers and client teams to deliver the best in ecommerce. 

Main Responsibilities: 

• Design, build and configure SFCC e-commerce websites 
• Integrate third party solutions using a range of e-commerce technologies 
• Facilitate requirements gathering sessions with client teams 
• Work with an Agile team to ensure solutions are delivered timely and on budget 
• Lead technically teams of SFCC developers 

What Do We Expect? 

• Expert knowledge of Salesforce Commerce Cloud 
• Expert knowledge in JavaScript, HTML, CSS 
• Experience with complete e-commerce lifecycle development 
• Strong understanding of design patterns 
• Proven problem-solving skills 
• Team player 

Why Join Us? 

• Competitive remunerations & benefits package 
• Exposure to International Brands & latest technologies  
• Friendly, yet competitive work environment  
• Flexible working hours and working location 
• Technical training & certifications 
• Business/Consulting training & certification  
• Sport & team building events  

• Total Experience of 7-10 years and should be interested in teaching and research
• 3+ years’ experience in data engineering which includes data ingestion, preparation, provisioning, automated testing, and quality checks.
• 3+ Hands-on experience in Big Data cloud platforms like AWS and GCP, Data Lakes and Data Warehouses
• 3+ years of Big Data and Analytics Technologies. Experience in SQL, writing code in spark engine using python, scala or java Language. Experience in Spark, Scala
• Experience in designing, building, and maintaining ETL systems
• Experience in data pipeline and workflow management tools like Airflow
• Application Development background along with knowledge of Analytics libraries, opensource Natural Language Processing, statistical and big data computing libraries
• Familiarity with Visualization and Reporting Tools like Tableau, Kibana.
• Should be good at storytelling in Technology