
Senior Spark QA Engineer – Functional & Performance Testing
Location: Remote
Experience: 5+ Years
Job Description -
We are looking for a Senior Spark QA Engineer with strong expertise in functional and performance testing of Apache Spark applications and distributed data platforms.
Key Responsibilities -
- Perform manual and automated testing of Spark jobs, Spark SQL queries, and ETL pipelines.
- Execute functional, scalability, and performance testing for Spark workloads.
- Set up and manage Spark clusters on Standalone, YARN, Kubernetes, Mesos, Databricks, EMR, and Dataproc.
- Conduct benchmarking, validation, and performance analysis of Spark applications.
- Identify bottlenecks and troubleshoot distributed system issues.
- Lead QA initiatives and mentor team members.
Required Skills -
- 5+ years of QA/testing experience with strong hands-on expertise in Apache Spark.
- Experience in functional and performance testing of distributed systems.
- Strong understanding of Spark architecture and optimization techniques.
- Experience with Kubernetes and cloud-based Spark environments.
- Proficiency in Python or Java.
- Experience with automation frameworks and CI/CD pipelines.

About Improving
About
Improving is a leading IT professional services firm committed to helping companies achieve lasting success through modern technology. With core expertise in AI, Data, and Applications, we specialize in transforming legacy systems, building cloud-native platforms, and delivering intelligent, future-ready solutions for today’s complex business needs. Improving’s leaders are equally committed to fostering a great place to work that is inclusive and purpose-centered, empowering Improvers to bring their whole selves to work. Our team is known for its collaborative approach and long-term partnerships that prioritize measurable outcomes. By combining technical excellence with strategic insight, Improving enables all stakeholders to grow, adapt, and lead in an ever-evolving digital landscape.
Tech stack
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POSITION: QA Engineer
JOB OVERVIEW:
We are looking for a QA Engineer to assess software quality through Manual and Automated Testing. You will be responsible for finding and reporting software bugs and glitches. You should have a keen eye for details and must be competent in executing test cases. You should also possess excellent communication and problem-solving skills and should be passionate about quality ensuring that our products, applications, and systems work correctly.
WHAT YOU WILL DO:
● Testing life cycle SDLC STLC.
● Analysis of the requirement Design & Implement functional test-cases.
● Reviewing software requirements and preparing test scenarios.
● Executing tests on software usability.
● Analyzing test results on database impacts, errors or bugs, and usability.
● Preparing reports on all aspects related to the software testing carried out and reporting to the design team.
● Interacting with clients to understand product requirements.
● Participating in design reviews and providing input on requirements, product design, and potential problems.
● Ensure complete test -coverage, interact with Product management development team & different stakeholders.
● Involve in Test-plan, Test scenario Test strategy review. Participate in the defect triage call, use the existing Tool & built the new Test script
● Hands-on API testing with REST Assured, Postman, Swagger.
● Should be having a good Analytical Skill.
● Should be expert in SQL severRedshift & web service testing.
● Expert in Agile & waterfall methodology & feature file writing.
● Assist in setting up & built the new Test- environments.
● Helping in new processes & procedures.
● Candidate must have good understanding of Automation Framework
● Test Execution (Expert) - Deep dive into large volumes of data comparison validation
● Test Framework (Expert) - Solid understanding of Test Phases, Type of testing to be undertaken & be able to perform them. Risk gate assessments for entry & exit criteria's. Test outputs - plan, cases, results, sign off reports.
REQUIRED SKILLS
● Must have strong experience working in the Software Testing field throughout the career across all phases of software development life cycle.
● SAAS application testing experience
● Must have exposure as well as hands on experience of manual as well as performance testing for various web based, mobile based and desktop-based Software Products and Application projects.
● Must have strong hands-on experience of various types of testing including end to end functional testing,UIUX, Performance, Security, Architecture, Websites and Performance testing etc.
● Must have led various software testing projects end to end including Test Plans & Test Cases
preparation, Effort Estimation, Test Reporting, Project Coordination activities for various projects.
● Knowledge of Database testing over MySQL or other relational non-relational databases is a plus.
● Strong experience with Automation tools including Selenium and others for testing Web basedRESTAPIsWeb ServicesSchedulersBatches & Event driven applications.
● Knowledge of at least one Programming language & coding on an Automation framework is plus.
● Must have familiarity to leading tools for requirement management, test case management, bug
management and version control.
● Should have strong documentation and verbal communication skills and excellent aptitude.
● Good to have: JIRA, Lean FT, Jenkins
Years-6 to 12 years
Location:Chennai
Roles and Responsibities
- 7+ years of experience as software engineer.
- Experience in Dot.Net technologies - Asp.Net MVC, WebAPI, .NetCore
- Experience in ORM like Entity Framework /Dapper
- Experience with Object-Oriented Design and SOLID principles
- Experience with Unit Testing, Mocking and Dependency Injection frameworks
- Experience with SQL Server, NoSQL or other database technology
- Experience with software quality, testing procedures and build automation tools
- Knowledge of the Principles & Patterns of Agile Software
- Ability to understand and troubleshoot existing code and maintain existing systems.
- Ability to identity performance bottlenecks.
- Experience working with version control tools such as GIT and CI/CD tools.
Regards
Sundaravalli

Requirements
Must have 1.5 years of experience in front end development in an internet startup
Deep knowledge of Angular practices and commonly used modules based on extensive work experience
Proficiency with javascript and html5
Extensive knowledge of CSS and JS methods for providing performance visual effects and keeping the frame rate above 30 fps at all times
Thorough understanding of the responsibility of the platform, database, API, caching layer, proxies and other web services used in the system
Creating custom general use modules and components which extend the elements and modules of core Angular
Ability to understand business requirements and translate them in to technical requirements
Roles and responsibilities
Delivering a complete front end application
Ensuring high performance on mobile and desktop
Writing tested, idiomatic and documented Javascript, HTML, CSS
Co-ordinating the workflow between graphic designer, HTML coder and yourself
Cooperating with the back end developer in the process of building restful API
Communicating with external webservices
Ensure high quality graphic standards and high consistency
Stay up to date on emerging technologies
Write functional requirement documents and guides
Must have skills (Angular 6, CSS, HTML, Javascript (ES5 and ES6), rest ful API, Product company / startup experience)
Strong hands-on experience with ReactJS, Redux, TypeScript, HTML, Bootstrap, Material UI, CSS3/SCSS, Webpack, NPM, NVM, Visual Studio Code
Knowledge/Experience on Restful APIs integration.
Unit testing with Jasmine or an equivalent framework
Experience or Knowledge in developing complex reusable component libraries such as complex grids, spreadsheet components etc.,
Strong in UI/UX standards implementation
Understanding of browser fundamentals and Page Optimizations
Experience working with Git and Azure
- Work closely with stakeholders and product managers to translate user needs and business requirements into visual designs that are minimalistic, easy to use, and emotionally engaging.
- Design for different industry sectors and master in visual design.
- Implement visual principles and experiment with typography, colors and labelling layouts.
- Collaborate and review designs with other designers to ensure a consistent, integrated brand perception for a better user experience.
- Present and obtain approvals from design leaders, project stakeholders, and end-users to drive your designs to success.
- B.Des/M.Des or equivalent experience in packaging or graphic design with an amazing design portfolio. 1+ years of experience in packaging or graphic design.
- Proficient in abode creative suite.
- A good storyteller who generates empathy, craft a vision, design for impact, using written and verbal communication, presentation, and organizational skill
- A problem solver with ideas that challenge the status quo, together with the persistence – to bring them to life.
The ROLE
- Handle the inbound interest received by Marquee
- Get the inbound leads to setup an online demo with us
- Conduct a small research on the prospect’s company and background prior to the demo to conduct a smooth sales call
- Conduct online demos with the prospects and turn them into paying customers
- Ensure that the product demo is neat and organized
- Work with the prospects to understand their needs and pitch them the right Marquee product to solve their problems
- Manage on-going relationships with customers
- Run strategic follow ups (Calls/texts/emails) on the prospects to get in maximum sales
- Strive to achieve the sales targets
- Work with our Founder on strategic alliances - potentially travelling to various financial centers globally
Here are some important things to consider prior to applying to us:
- Knowledge/prior experience with startup fund raising is a distinct advantage
- WE'RE A REMOTE TEAM so you can work from wherever you like - you don't have to attend office on a day to day basis
- You should own a laptop
- EXCELLENT written & spoken English required
- We shall provide a 5-7 days training session once you join in.
Responsibilities :
- Design and develop scalable, high performance, and reliable API driven services/applications in Java language that operate whole day.
- Produce high quality software that is unit tested, code reviewed, and checked in regularly for continuous integration.
- Interact with both business, financial research, and technical stakeholders to deliver high quality products and services that meets/exceeds business, customer, and technical requirements.
- Own products and code from cradle to grave including production quality/performance monitoring.
Required Skills :
- Experience building and running high performance enterprise applications developed in Java language.
- Hands on experience developing Java web applications built with modern standards-based APIs including Java based REST APIs and implementations.
- Experience in Java language APIs, Spring technologies, Hibernate, JDBC, RDBMS and NoSQL based data persistence.
- Experience developing solutions on AWS Cloud leveraging AWS Lambda, S3, DynamoDB, Cloud Formation, and other related AWS technologies.
- Solid understanding of Domain Modeling with Relational and Non-Relational Databases.
- Excellent debugging and problem-solving skills, including ability to diagnose and fix performance and scalability issues.
- Experience working in an agile methodology-based development environment.
- Excellent written and verbal communication skills.
- BS/B.Tech/M.Tech in Computer Science or a related field.
Share your resumes if this opportunity suits you.
To know more about us, please visit http://www.centiro.com/">www.centiro.com
Purpose
Working at Centiro is different. Inspiring, challenging and rewarding. We are on a rapid path of expansion and are looking for talents with a passion and drive to make a difference. This is an exciting time to be joining & strengthening the team and shape the future together.
What will you do?
As an Application Specialist (AS), you are responsible for analysing customer requirements, developing and maintaining system integrations and components, including but not limited to; application to application integrations, services, internal and external API, file transfer, and/or EDI and SQL queries. AS is fully responsible for participating in requirements analysis, design, development, internal testing, and the documentation of same for the application-application integrations.
Primary responsibilities will also include understanding product architecture, design dependencies, troubleshooting existing integrations and providing technical support to the development team.
Initially you will learn how our systems function and as you progress you can decide your area of specialization. You create your path; the possibilities are limitless. We work in self-organized teams with varied skills and as an organization follows/obeys a holarchy instead of a hierarchy. In a holarchy, each person’s value comes from his or her individuality and uniqueness instead of rank or seniority.
Who are you?
You are a tech-savvy person with an interest in integrations and how the world of digital affects the modern business. Always with the customer in focus.
You are expected to try, test, learn and implement. You are encouraged to seize opportunities and continuously develop with Centiro’s robust confidence in your ability. You are spurred by continuous improvements and seeing things from a new perspective.A collaborative mindset and aptitude are more important than prestige and personal priorities. With all tasks, everyone is equal in helping each other succeed.
What we are looking for:
- Degree in computer science, engineering from reputed institute
- 2-6 years of proven experience working with system integrations and worked with SQL, MS .Net, Database- MS SQL / Oracle, SQL Server Management Studio, Web services, SFTP
- Working Knowledge of different file formats like IFTMIN, XML, CSV, JSON
- Understands and learns the Software configuration and follows the steps to configure / implement / integrate company or 3rd party products and support client requests.
- Hands-on testing experience to validate integrations / solutions developed and implemented. Has worked with testing tools like SOAPUI/ ReadyAPI/ Postman
- Collaborate with business and technical partners to capture - understand requirements, estimate efforts, and deliver appropriate specification to drive the solutions
- Effectively communicate to management, business owners, and customer stakeholders as well as working closely with software developers.
- Able to define project requirements and manage/Lead small projects independently
- Proven problem-solving and troubleshooting skills and be able to organize their own workload by staying agile and responsive to team needs. Knowledge of JIRA, BMC remedy, Service Now.
Good to have :
- Working knowledge of Supply chain and logistics domain / supply chain ERP - solutions
- Exposure to release cycle, Power BI , Graylog, Grafana
- Experience working with Label scripting in languages like zebra and mark point
- Knowledge of C# , VB script
Proficient in working with systems infrastructure, creating, querying, and manipulating databases, APIs, and integrations.
Deep expertise and hands-on experience with Web Applications and programming languages such as HTML, CSS, JavaScript, JQuery, and API's.
SKILLs
Required Technical Experience: Frontend code (HTML5/CSS, ReactJS, D3JS) and web stack back-end technologies (.net Core, NodeJs), MongoDB, Docker, Git, Jenkins
Preferred Technical Experience: React/ Redux/Hook, GraphQL, HANA-SQL, Redis, Golang, Kafka, etc.
Implement Security OAuth/JWT solutions for the different API Scenarios
Deep functional knowledge or hands-on design experience with Micro-service is needed to be successful in this position. Also, the candidate should have a sound understanding of CI/CD processes, agile development, possess a deep understanding of programming fundamentals, and can learn new frameworks, languages, and tools required on projects.






