
TeamExtn is looking for a passionate Senior Scala Engineer. It will be expected from you to build pragmatic solutions on mission-critical initiatives. If you know your stuff, see the beauty in code, have knowledge in depth and breadth, advocate best practices, and love to work with distributed systems, then this is an ideal position for you.
As a core member of our Special Projects team, you will work on various new projects in a startup-like environment. These projects may include such things as building new APIs (REST/GraphQL/gRPC) for new products, integrating new products with core Carvana services, building highly scalable back end processing systems in Scala and integrating with systems backed by Machine Learning. You will use cutting edge functional Scala libraries such as ZIO. You will have the opportunity to work closely with our Product, Experience and Software Engineering teams to deliver impact.
Responsibilities:
- Build highly scalable APIs and back end processing systems for new products
- Contribute in the full software development lifecycle from design and development to testing and operating in production
- Communicate effectively with engineers, product managers and data scientists
- Drive scalability and performance within our distributed AI platform
- Full software development lifecycle from design and development to testing and operating in production
- Communicate effectively with engineers, product managers and data scientists
Skills And Experience:
- 4+ years experience with Scala or other functional language
- Experience with Akka and Lightbend stack
- Expert with PostgreSQL, MySQL or MS SQL
- Experience in architecting, developing, deploying and operating large scale distributed systems and actor systems
- Experience with cloud APIs (e.g., GCP, AWS, Azure)
- Messaging systems such as GCP Pub/Sub, RabbitMQ, Kafka
- Strong foundation in algorithms and data structures and their real-world use cases.
- Solid understanding of computer systems and networks
- Production quality coding standards and patterns
BONUS SKILLS:
- Experience with functional programming in Scala
- Knowledge of ZIO and related ecosystem
- Experience with functional database libraries in Scala (Quill preferred)
Our Interview Process:
Our interview involves 3 steps.
1. Code Evaluation - In this step we send you a simple assignment that you implement
2. First Technical Round - In this technical round we evaulate you on your skills, concepts and knowledge in Scala.
3. Second Technical Round - If the first round goes well we check how hands you are with Scala and have online problem solving session.

About TeamExtn
About
Teamextn builds you the right team to deliver software products successfully. We work with you on the design, development, deployment, and maintenance of your products. We see beauty in code and at the same time, understand things from the business side.
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Description
Join company as a Backend Developer and become a pivotal force in building the robust, scalable services that power our innovative platforms. In this role, you will design, develop, and maintain server‑side applications, ensuring high performance and reliability for millions of users. You’ll collaborate closely with cross‑functional product, front‑end, and DevOps teams to translate business requirements into clean, efficient code, while participating in code reviews and architectural discussions. Our dynamic environment encourages continuous learning, offering opportunities to work with cutting‑edge technologies, cloud infrastructures, and modern development practices. As a key contributor, your work will directly impact product quality, user satisfaction, and the overall success of company's mission to streamline hiring solutions.
Requirements:
- 1–15 years of professional experience in backend development, with a strong focus on building APIs and microservices.
- Proficiency in server‑side languages such as Python, Java, Node.js, or Go, and solid understanding of object‑oriented and functional programming paradigms.
- Extensive experience with relational (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Redis), including schema design and query optimization.
- Familiarity with cloud platforms (AWS, GCP, Azure) and containerization technologies like Docker and Kubernetes.
- Hands‑on experience with version control (Git), CI/CD pipelines, and automated testing frameworks.
- Strong problem‑solving abilities, effective communication skills, and a collaborative mindset for working within multidisciplinary teams.
Roles and Responsibilities:
- Design, develop, and maintain high‑throughput backend services and RESTful APIs that support core product features.
- Implement data models and storage solutions, ensuring data integrity, security, and optimal performance.
- Collaborate with front‑end engineers, product managers, and designers to define technical requirements and deliver end‑to‑end solutions.
- Participate in code reviews, provide constructive feedback, and uphold coding standards and best practices.
- Monitor, troubleshoot, and optimize production systems, implementing robust logging, alerting, and performance tuning.
- Contribute to the continuous improvement of development workflows, including CI/CD automation, testing strategies, and deployment processes.
- Stay current with emerging technologies and industry trends, proposing innovative approaches to enhance system architecture.
Budget:
- Job Type: payroll
- Experience Range: 1–15 years
Job Title: iOS Developer
Experience Required: 1 to 4 Years
Location: Pune
Employment Type: Full-Time
Job Summary:
We are looking for a passionate and skilled iOS Developer to join our mobile development team. The ideal candidate will be responsible for developing, enhancing, and maintaining iOS applications. You should have a strong understanding of iOS frameworks, Apple's design principles, and the ability to work independently or with a team.
Key Responsibilities:
- Design and build advanced applications for the iOS platform.
- Collaborate with cross-functional teams to define, design, and ship new features.
- Work with outside data sources and APIs.
- Ensure the performance, quality, and responsiveness of applications.
- Identify and correct bottlenecks and fix bugs.
- Continuously discover, evaluate, and implement new technologies to maximize development efficiency.
- Maintain code quality, organization, and automation.
Required Skills:
- Proficient with Swift and/or Objective-C.
- Experience with iOS frameworks such as UIKit, Core Data, Core Animation, etc.
- Familiarity with RESTful APIs to connect iOS applications to back-end services.
- Understanding of Apple’s design principles and interface guidelines.
- Experience with offline storage, threading, and performance tuning.
- Knowledge of code versioning tools (such as Git).
- Familiarity with cloud message APIs and push notifications.
- Experience with third-party libraries and APIs.
Job Description
We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.
Key Responsibilities
- Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
- Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
- Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
- Drive code reviews, technical discussions, and ensure high code quality and performance standards.
- Troubleshoot critical production issues and implement long-term fixes and improvements.
- Advocate for continuous improvement in tools, processes, and systems across the engineering team.
- Stay up to date with modern technologies and recommend their adoption where appropriate.
Required Skills
- 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
- Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
- Proven experience leading a team of engineers or taking ownership of modules/projects.
- Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
- Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
- Excellent problem-solving, debugging, and analytical skills.
- Strong communication and leadership skills.
About HummingWave
HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.
Thanks
Knowledge of REST API, XML and RESTFUL web services
Working knowledge on SQL, JQuery, web services, Eclipse IDE would be a plus
- Deployment and production support.
- Strong knowledge of SQL database and experience in writing queries with and without ORM.
- Designing and creating RESTful APIs for internal and partner consumption
- Experience of code versioning tools, such as Git, Bitbucket, Github
Responsibilities:
- Build and maintain REST APIs
- Proficient in Python or any other programming language
- Experience in writing Unit/Integration tests.
- Experience with Distributed Version Control System.
- Elasticsearch or Solr experience.
- NOSQL experience- Cassandra, MongoDB.
- Experience in Message brokers - Rabbitmq.
- Experience with AWS Infrastructure, Lambda, Docker/Containers
Desired to have:
- Should be pragmatic and realize when a solution is over-engineered as well as knowing when to spend time on creating the right abstraction that allows us to move faster in the long run.
- Passion for your work and striving to do things “the right way”.
- Familiarity with Agile/Lean process.
- Willingness to work in a Startup environment.
- Excellent debugging and optimization skills.
- Knowledge of emerging technologies and a solid understanding of the full product development life cycle.
- Excellent knowledge of mobile user experience, information architecture and trends
Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 2.5 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large-scale social or location-based app.
Required Skills:
- 2+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
You are a motivated and energetic rockstar full stack developer. Go-getter, think out of box to create awesome front-end (jQuery or ReactJS) and back-end (APIs) of an application platform.
Skills:
- Develop web apps using jQuery or ReactJS, HTML5, CSS3, Bootstrap, PHP Advanced, any MVC framework and Ajax.
- Hands on knowledge of Adobe Photoshop
- Experience of setting up a production workflow with git and cloud deployment will be plus.
- Knowledge of web technologies such as NodeJS, ReactJS, VueJS etc will be plus
// must have a strong understanding of UI, cross-browser compatibility, general web functions and standards.
// willingness to learn and improvise skills
// "NEVER SAY NO" attitude towards new and challenging projects
// good verbal and communication skills
// excel in a fast-paced startup-like environment. Should be goal-orientated and be able to work without any supervision or mentorship.










