
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-base

About Recro
About
Recro is a developer-focused platform that was founded with the aim of seamlessly matching individual expertise with the right opportunities.
We empower talented developers by providing them with relevant experience at fast-growing startups based on technical competencies and aspirations. These opportunities have a significant impact on their career success and help them become their best self.
On the other hand, startups get instant access to top-quality developers with guaranteed productivity from the very beginning. We help them to scale up/down based on their needs, thus ensuring an efficient and high-yielding workforce.
Developers solve real-time complex problems and get exposure to the uplifting and challenging work culture at start-ups like Flipkart, Dunzo, Swiggy, and Zivame among many others. At Recro, we ensure continuous support from our strong community to accelerate careers for developers and strive to create optimal business outcomes for high-growth startups.
Company video


Photos
Connect with the team
Similar jobs
Experience: 3-7 Years
Qualification- Graduation: Bachelor of Science (B.Sc) / Bachelor of Technology (B.Tech) / Bachelor of Computer Applications (BCA)
Post-Graduation: Master of Science (M.Sc) /Master of Technology (M.Tech) / Master of Computer Applications (MCA)
Roles and Responsibilities:
- Must have experience in Microservice architecture with the ability to collaborate effectively with team members and build positive working relationships.
- Design and build and deploy APIs to meet business requirements.
- High level of commitment to business satisfaction and agility.
- Strong work ethic and a passion for the role, with a positive attitude and a willingness to learn.
- Communicate effectively with the tech lead to thoroughly understand the requirements and highlight any blockers immediately.
- Handle programming and software development, including requirement gathering, bug fixing, testing, documenting, and implementation.
- Work in an agile environment to deliver high-quality solutions.
- Understand and implement Security, Logging, Auditing, Policy Management, and Performance Monitoring.
- Familiarity with relational databases (E.g.: Oracle), non-relational databases (E.g.: MongoDB), MSK Kafka, Docker, Kubernetes, and CICD Technologies (Jenkins, GitHub, Maven)


Job Summary
- Candidate will be responsible for providing full life-cycle development (design, coding, and testing) and maintenance of web-based system on Azure
- Candidate should have experience in GitHub, knowledge of DevOps is a plus
- Experienced in designing and implementing web portals, experience with DNN is must
- Ability to work with multiple languages including C#, ASP.Net, MVC, Javascript and related libraries, HTML, Complex SQL queries, CSS, BootStrap, JSON.
- Experience in Agile project management methodology
- Developing and Delivering Excellent Web based solutions/portals/sites based on customer’s requirement within the stipulated timeline
- The candidate should be flexible to learn new technology and platform and should be creative, innovative for improvement ideas, detail oriented, diligent, and eager to learn and grow
Duties and Responsibilities
- Understand business requirements to apply logic to integrate functionalities
- Identify and understand any technical bugs on the server, site, log files or modules and work on resolving the bugs
- Understand how FTP server is setup for the site
- Understand system/site technical requirements and suggest enhancements if applicable
- Designing, coding, unit Testing, and integration with Database
- Handle site deployment
- Designing, coding, debugging, technical problem solving, and writing Unit Test cases, etc.
Qualifications
Education / Certification
- B.E. / B.Tech. /MSC in Computer Science or IT.
- MCAD/MCSD/MSITP/MCPD
Technical Expertise
- ASP,ASP.NET,VB.NET,MVC,C#,SQL Server 2012+
- HTML, Javascript, Jquery, CSS, Bootstrap
- GitHub/
- Web API/ Web Services, Email Services
Skills and Abilities
- Be able to work with diverse global teams and in an individual contributor role as needed
- Excellent English written and verbal communication skills (for local team and global stakeholders/team members)
- Strong task management skills including time management, and ability to manage multiple projects simultaneously
- Flexibility required to attend late evening meetings with global team members
- Attention to detail and delivering quality projects and knowledge assets
Requirement:
1. Node Js min 2 yrs exp.
2. Database - MONGO, SQL, etc. min 2yrs experience with these.
3. Caching - REDIS, MEMCACHED etc
4. Message Queues - RABBIT MQ, Kafka, etc.
Location: Delhi (Work from office).
Package : Upto 12 LPA
Context for the Candidates:
Blockchain engineers are tasked with building secure, scalable, and high-performance decentralized applications. This discussion focuses on how to utilize key technologies—Node.js, Rust, Go, TypeScript, Ethers.js, viem, and Hardhat—in smart contract and blockchain system development, while addressing the practical challenges that arise in such projects.
Key Discussion Points:
• How do you integrate Node.js, Rust, Go, and TypeScript in blockchain-backed applications?
• Discuss the trade-offs between using Rust or Go for performance-critical blockchain services.
• What are the key challenges in ensuring the security and scalability of smart contracts using tools like Ethers.js, viem, and Hardhat?
• How do you approach testing, debugging, and deploying smart contracts in a decentralized environment?
• Share best practices for gas optimization, contract upgradability, and backend scalability.
Evaluation Criteria:
1. Technical Knowledge:
• Strong knowledge of Node.js, Rust, Go, and TypeScript with practical experience in blockchain development.
• Proficiency in Ethers.js, viem, Hardhat, and smart contract lifecycle (development, testing, deployment).
• Understanding of security best practices, performance optimizations, and scalability in decentralized systems.
2. Problem-Solving and Integration Skills:
• How candidates approach integrating smart contract solutions with backend services using Node.js, Rust, Go, and TypeScript.
• Solutions proposed for common challenges in blockchain projects such as gas fees, security vulnerabilities, and system bottlenecks.
3. Experience and Expertise:
• Minimum of 2 years of IT experience, including hands-on development with the specified technologies.
• Practical knowledge of blockchain architecture, consensus mechanisms, and decentralized application deployment.
4. Innovation and Critical Thinking:
• Candidates’ ability to think creatively about system architecture, proposing scalable and secure solutions for blockchain-based applications.
• Discussion on the future potential of blockchain technology and how the tech stack can evolve.
5. Communication and Team Collaboration:
• Clear articulation of technical challenges and how to address them in a team setting.
• Ability to lead or contribute to discussions in a way that encourages collaboration and team-driven problem-solving.
Role: Backend Developer
Role & Responsibilities / What you will do?
- Participate in design and implementation of the overallBackend architecture.
- Understand Architecture Requirements and ensure effective Design, Development,
- In depth knowledge of NodeJS, ExpressJs. (plus point if having knowledge of GOLang)
- In depth knowledge of Databases like MongoDB, MySQL, CouchBase, Cassandra and search engine like elastic
- OTT Streaming platform knowledge includes functional areas such as - Media Processing ,Content Management system
- Problem Solving – Ownership, Proactive and Systematic approach.
- Enable absorption of latest technologies in the product line.
- Ensure best practices in software development are institutionalized.
- Problems across multiple environments and operating platforms.
- Validation, Testing and Performance, monitoring etc
Requirements / What you should have?
- Understanding and knowledge of Front end is plus point.
- Continuous integration (Jenkins) and version control (Git) etc.
- Good Error and Exceptional Handling Skills.
- Identify bottlenecks and bugs and recommend system solutions by comparing advantages and disadvantages of custom development.
- Contributing to team meetings, troubleshooting development and production
Must Have: •At least 6+ years in web services development and solid understanding of web technologies in JAVA •Strong Expertise in building & deploying application on any of the major cloud platforms (GCP, AWS, Azure) •Strong expertise with Docker/Kubernetes •Working knowledge of building Micro Services, RESTful web Services using any framework (Spring Boot, JaxRS, Jersey) •Strong Expertise of writing JUnits & How to configure it through maven •Good understanding of NoSQL databases and have worked upon any one of them (HBase, Cassandra, Big query, Mongo) •Good understanding of Message Queues and have worked upon any one of them (Kafka, RabbitMQ, Pub Sub) •Good understanding of Maven, Git •Good understanding of Jenkins, CI/CD architecture •Good understanding of Programming Algorithms and Data Structures •Experience with BDD & Cucumber
Good to Have: •Monitoring experience – Stackdriver or Prometheus or Azure equivalent •Operational readiness – SLI/SLO, DevOps experience •Service mesh – ex: Istio •Any OpenShift experience •Knowledge on Graph technology •Have worked upon any of the big data technologies •Have worked upon tools like white source, Veracode... •Knowledge of Python and Angular •Integration tests using BDD Framework (Cucumber) •Good understanding of Streaming technologies and processing engines (Dataflow, Flink, Spark) •Knowledge of VSTS |

We are hiring for a Software Engineer Team Lead - Backend, to join our education-focused fintech lending startup, GrayQuest. Our core product is a combination of a lending product, a rewards product and an insurance product to redefine the education fees payment across the country.
You will be joining a young and vibrant team of developers who are pushing the boundaries of consumer financing through technology.
Key Responsibilities :
- Participate in all stages of the Software Development Lifecycle
- Develop back-end components, services, and APIs. Support integration of user-facing elements, and collaborate closely with the design and front-end development team.
- Write elegant, effective, and scalable code while maintaining the highest level of coding standards.
- Take complete ownership of projects and ensure timely deliveries
- Ability to debug, refine, review, and deploy code
- Work closely with the QA team to test, and document project features.
- Ability to interact with all stakeholders. Understand business requirements, and effectively convert them into technical specifications
- Mentor junior developers and participate in peer Review
Requirements:
- Demonstrable experience as a Python Developer (3+ years)
- Strong knowledge of Python frameworks (Django Rest, Flask)
- Experience working on REST APIs
- Strong knowledge of SQL and JavaScript
- Experience with Amazon Web Services (AWS)
- Working knowledge of React
- Familiarity with Agile development methodology
- Good understanding of task breakup, milestone definition, and work delegation.
- Past experience of working in a fintech/financial services domain or a consumer internet startup will be preferable but not required
- Work experience in early-stage startups (0 ->1) is a big plus
- Bachelors or equivalent degree from premier institutes is a plus
- Most importantly, the biggest skill we look for our prospective candidates is "Learnability" - how quickly can you learn.
Why is this a great opportunity for the right candidate:
- Work with a young dynamic core team backed by marquee investors from the financial services space
- Work on a product/business that has achieved product market fit and take it to scale
- Equity compensation and competitive market salaries
- Work environment that prioritizes talent, hustle and dedication
We will also ensure we give a preference to applicants who directly email us with their background/context and why they think they should be a strong candidate for this position at GrayQuest. Email us at work (at the rate) grayquest (dot) com and cc Sonal (at the rate)grayquest (dot) com
About us:
NetCracker Technology, a subsidiary of NEC Corporation, is the leading provider of BSS/OSS solutions to service providers around the world. From billing, customer care, and real-time charging and policy solutions, to resource and network management, service fulfillment & assurance, our comprehensive software and services capabilities enhance the customer experience through content-rich offerings and reduced costs.
NetCracker's innovative end-to-end BSS/OSS solutions enable service providers to operationalize next-generation connectivity, maximize the convergence of Network and IT, monetize content, and deliver a compelling customer experience.
Founded in 1993, NetCracker became a subsidiary of NEC Corporation in 2008 and acquired the Convergys Information Management division in 2012. We are CMML 5, Product based company.
Job Responsibilities:
- Work as a member of development team towards the Product Suite
- Estimating efforts and duration on development
- Involved in solution implementation projects
- Interaction with Business Analysts, Quality Assurance and Customer Support teams
- Provide expertise and best practices on technical aspects of product development and implementation projects including performance
- Introduce new development technologies, instruments and techniques
Job Requirements:
- Experience in writing technical design and development of the application
- Good understanding and hands-on work experience in Core Java/J2EE & concepts such as OOPS, multithreading, Collections, Concurrency, Exception Handling, JDBC, File I/O, XML APIs etc
- Should have worked on Java 1.8
- Design skills –Design Patterns, hands on in restful services
- Working experience on spring core
- Hands on in writing complex SQL queries
- Knowledge of web-services (REST and SOAP);
- Familiarity with NOSQL [eg. Mongo DB] is preferred;
- Familiarity with message queues like Kafka.
- Know-how on containerization applications like Docker, Kubernetes is preferred.
- Proficient understanding of code versioning tool – SVN.
- Hands-on experience in writing Unit tests using Junit.
- Working experience in Jenkins, Maven, SonarQube.
- Experience in tuning applications based on Performance tests/ Load tests/ Stress tests is preferred.
- Knowledge of development lifecycle, standards, approaches, utilities and environment: shells, IDEs.
- Familiarity with JIRA / JQL is an added advantage
Experience:
- 5 to 11 years of core development / Product experience
Education:
- BE/Btech/MCA




Job Description
We are looking for a Back-End Web Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your coworkers into the application. A basic understanding of front-end technologies is therefore necessary as well.
Responsibilities
- Integration of user-facing elements developed by a front-end developers with server side logic
- Building reusable code and libraries for future use
- Optimization of the application for maximum speed and scalability
- Implementation of security and data protection
- Design and implementation of data storage solutions
Skills And Qualifications
- Basic understanding of front-end technologies and platforms, such as JavaScript, HTML5, Nodejs and CSS3
- Good understanding of server-side CSS pre-processors, such as LESS and SASS
- User authentication and authorization between multiple systems, servers, and environments
- Good Understanding of Mysql database.
- Management of hosting environment, including database administration and scaling an application to support load changes
- Data migration, transformation, and scripting
- Setup and administration of backups
- Outputting data in different formats
1. Technical skills include Java/JDK 6 and above, web services SOAP, REST, Micro Webservice, XML Parsing and schema design skills, JDBC, ORM, Multi-Threading.
2. Hands-on experience in design (HLD/LLD) and design patterns and Design principles is mandatory.
3. Excellent communication and client handling skills are required.
4. Server-side component design, detailed technical design, development, implementation and maintenance
5. In depth knowledge of core java. Solid on coding fundamentals e.g. Object-Oriented design, data structures and dependency injection
6. Hands-on experience in widely used third party frameworks (e.g. Spring, Hibernate)
7. Experience with Java Script framework like EXTJS, Jquery , Angular etc.
8. Strong background Object Oriented analysis and design
9. Hands on experience with Databases technologies preferably MS SQL Server.
10.Knowledge of deployment platforms Jboss/ Wildfly/Tomcat.
11.Experience working in high performing development teams using Agile/Scrum methodologies and tools (eg.Agile,Jira)
12 Experience with automated code review tools and build process.
13.Experience in performance optimization by code optimization, profiling, detecting bottle neck and finding contended locks in system
14.Proven track record of being a successful developer and lead and mentor by accomplishing tasks on schedule with strong initiative, commitment to quality, team blending and leadership skills.
15.The candidate must be highly self-motivated confident and mature, well developed analytical and problem-solving skills with the aptitude to learn as well as a flexibility to adapt to change.
16. Candidate should have worked on end-to-end life cycle of the project (ideation to go-live)
The right candidate will be offered ESOPs as well in their compensation.

