
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.

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.
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- Develop, enhance, and maintain Java-based applications using Spring Boot and related frameworks.
- Design, implement, and optimize Microservices with RESTful APIs.
- Build and manage Spring Batch jobs, including scheduling, chunk processing, partitioning, and error handling.
- Apply object-oriented design (OOD) and GoF design patterns (Factory, Singleton, Strategy, Observer, etc.).
- Write clean, maintainable, and scalable code following best coding standards.
- Integrate applications with databases (SQL/NoSQL) and messaging systems (Kafka/RabbitMQ).
- Participate in code reviews, technical discussions, and architectural decisions.
- Troubleshoot production issues and ensure application performance, scalability, and reliability.
- Work in an Agile/Scrum environment and collaborate with cross-functional teams.
Technical Skills Required
- ** Core Java 8+**, OOP, Collections, Multithreading
- ** Spring Boot**, Spring MVC, Spring Data JPA
- ** Spring Batch** (Job/Step configuration, Tasklets, Readers/Writers, partitioning)
- ** Microservices** (REST, API Gateway, service discovery, resilience patterns)
- ** Design Patterns** (Factory, Singleton, Adapter, Strategy, Builder, Observer, etc.)
- ** Databases:** MySQL/PostgreSQL/Oracle, MongoDB (optional)
- ** Messaging:** Kafka / RabbitMQ (preferred)
- ** Build tools:** Maven/Gradle
- ** CI/CD:** Jenkins, GitLab CI, or similar
- ** Cloud:** AWS / Azure / GCP (optional but preferred)
- ** Testing:** JUnit, Mockito
What You’ll Do
• Build and scale backend services using Java & Spring Boot
• Work on API integrations (REST, SOAP), caching & rate limiting
• Contribute across the full SDLC – design, development, testing & deployment
• Solve problems around performance, scalability & reliability
What We’re Looking For
• Strong knowledge of Data Structures & Algorithms
• Experience with Java, Spring Boot, REST/SOAP
• Hands-on with system & solution design
• Database experience: MongoDB / PostgreSQL / MySQL / Oracle
• Good debugging skills & unit testing
• Familiarity with Git and AI coding assistants (Copilot, Claude, etc.)
CTC: up to 20 LPA
Exp: 4 to 7 Years
Required Qualifications
- Bachelor's degree in Computer Science, Information Technology, or related field
- 4+ years of experience in software development
- Strong proficiency in Java with deep understanding of web technology stack
- Hands-on experience developing applications with Spring Boot framework
- Solid understanding of Python programming language with practical Flask framework experience
- Working knowledge of NATS server for messaging and streaming data
- Experience deploying and managing applications in Kubernetes
- Understanding of microservices architecture and RESTful API design
- Familiarity with containerization technologies (Docker)
- Experience with version control systems (Git)
Skills & Competencies
- Skills Java (Spring Boot, Spring Cloud, Spring Security)
- Python (Flask, SQL Alchemy, REST APIs)
- NATS messaging patterns (pub/sub, request/reply, queue groups)
- Kubernetes (deployments, services, ingress, ConfigMaps, Secrets)
- Web technologies (HTTP, REST, WebSocket, gRPC)
- Container orchestration and management
- Soft Skills Problem-solving and analytical thinking
Roles and Responsibilities:
- Developing Simple to Complex Functionality for Websites and Applications
- Write reusable code preferably using classes and libraries.
- Programming databases specially MySQL.
- Establishing projects from scratch or working on accessible projects
- Developing front-end and back-end applications.
- Take on multiple projects varying in size and complexity.
- Manage projects on AWS and other servers.
Desired Candidate Profile:
- Bachelor degree in Computer Science, Software Engineering or related discipline.
- 1 to 3 years of experience developing eCommerce web applications.
- Should be technically sound in OOPs Concepts.
- Programming databases specially MySQL/PostgreSQL.
- Knowledge of server side technologies like PHP 7/8, NodeJS, NUXT.
- Knowledge of client side technologies like Javascript, JQuery, VueJS.
- Experience in MVC Framework, especially laravel.
- Basic knowledge of HTML5, CSS, XML, JSON.
- Good command on PostgreSQL database and its optimization techniques.
- Exposure to database transactions, stored procedures and triggers.
- Experience working with third-party APIs and developing web services using REST/GRPC.
- Experience with SCM tools like svn/git.
- Ability to adapt and pick up new techniques and technology.
- Knowledge of web security and vulnerabilities.
- Ability to prioritize the work and multi-tasking.
- Excellent communication skills & self-motivated
We are seeking extremely smart & independent senior developers who are gung ho about building large scale systems that are going to have a big impact on millions of customers. You will:
Responsibilities:
- Lead design and development of products working closely with business team.
- Independently own software components and co-own entire applications with a small group of fellow developers.
- Formally mentor junior software engineers on the team, reviewing design documents, (peer) reviewing code, providing design direction and guidance.
- Build performant, scalable, yet secure, enterprise ready back end architectures that can support millions of users in parallel.
- Establish strong engineering best practices and champion their adoption.
Requirements:
- 4+ years' experience in software product development and delivery.
- Bachelors or Masters degree in engineering (preferably computer science or sister branches) from a reputed institute (preferably IITs, NITs, or other top engineering institutes).
- Strong grasp of CS fundamentals, algorithms and excellent problem-solving abilities.
- All experience should be from good product development or e-commerce background.
- Able to take ownership of working with at least one of mobile or web app teams for complete integration with backend.
- Must have shown good stability in all your previous associations.
- Have strong backend knowledge and cloud development exposure.
- Proficiency in Java, Spring boot, Hibernate, REST API development.
- Worked with at least 1 RDBMS (Mysql preferred).
- NoSql is a plus.
- Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
- Writing high quality code which is made better by unit tests and integration tests is how you work.
- Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
- Knowledge of test driven development and AWS tech stack will be a good plus.
What you will do:
- Storing data and ensuring that it is displayed to that user who are supposed to have access to it
- Developing business logic for systems to process in the front end
- Managing APIs resources which work across the Product Architecture
- Participating in the architecture of a system and data science analysis
- Organizing the logic of the system which runs across various tiers
- Involving in building frameworks or the architecture to make it easier to program against
- Back-end developers should have the skill for implementing algorithms and solving system related problems
Desired Candidate Profile
What you need to have:- 2-5 years of experience in rest api/Database design, development and architecture
- Strong programming and debugging skills with sound understanding of data structures, algorithms, and object oriented programming
- PHP/ Mysql experience with hands on application delivery is a must
- Hands on experience with an API management
- Experience with synchronous and asynchronous interfaces and Microservice API development is a must
- Hands-on experience with version control system like Git is desirable
- Knowledge in PHP, Codeigniter, Doctrine, MySQL, ElasticSearch, ReST endpoint development
- Implementing API management using API management software (like Apigee or others) to include API proxies mashups, rate limiting, security, analytics, monetization and developer portals
- Kafka/RabbitMQ messaging architecture notification
- Knowledge of Algorithms and data structures is also essential
- An awareness of security concerns is important, as each layer has its vulnerabilities
- Knowledge of the differences between multiple delivery platforms like mobile vs. desktop
- Basic exposure to frontend techs like HTML and CSS is desirable
Are you a high-performing, collaborative, results-oriented and technologically savvy person who is keen on sales in the digital industry? Then this highly visible role is for you!
Our client is the Health-tech initiative of India's largest business house. Started in 2015, it empowers healthcare providers and consumers in India. All healthcare monitoring services are made available through an app that will help connect doctors, hospitals, pharmacies, laboratories, and consumers, enabling preventive and predictive healthcare. It helps the care-givers to track the entire patient journey from the initial appointment and maintaining their records, generating lab test reports to providing virtual consultation and home-care solutions. It is expected that this futuristic guide will strengthen the doctor-patient relationship and enhance the in-clinic experience.
As the Sr. Java Developer, you will be responsible for developing cutting edge health-tech applications that include high scale transaction processing, intelligent bot-based programs, and data analytics
What you will do:
- Building components for the companys advanced health-tech platform using Java, Solr, SpringBoot, DialogFlow
- Communicating effectively in a cross-functional product development team and presenting ideas and solutions effectively
What you need to have:
- Education: B.Tech with Min. 65% marks
- Expert at hands-on programming in JAVA and J2EE
- Proven expertise in Java interfaces with MongoDB (or similar NoSQL databases) as well as relational databases (MySQL, Postgres, etc)
- Key contributor in atleast one 6+ months development project involving SpringBoot and Hibernate
- Strong understanding of application server infrastructure
- Good working knowledge of Maven-based build systems
- Good understanding of build and deployment pipelines that involve ANT and Jenkins
- Proficient understanding of code versioning tools, such as Git or SVN
- Good knowledge of working on Rest APIs, Webservices
- Excellent problem-solving skills
Desired Attributes
- Hands-on experience with Lucene/Solr
- Familiarity with DiagFlow based chatbot building
- Knowledge of NLP
- Learned AI/ML systems
- Excellent interpersonal skills and the ability to build good working relationships.
- Must be self-motivated to prioritize and manage workload and meet critical project milestones and deadlines.
- Able to effectively collaborate with a team as well as take initiative and work independently to solve problems
Company Description
SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.
The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.
We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.
SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.
The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.
We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.
Job Description
What you’ll do
- Develop new features and functionality in SteelEye's best breed SaaS application
- Work on setup API Developer for our growing SaaS product
- Ensure the software is up-to-date with latest technologies
- Triage issues and enhance core features of our existing API's for rapidly growing client base
- Design and architech our API layer solving problems around scale and performance
- Be part of great team building a fantastic product!
What we’re looking for
- You are experienced Python Developer, with minimum 5 years in commercial Python experience
- You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
- You have excellent knowledge of data structures, software design patterns and software architecture
- You are comfortable working in a fast-paced environment and can adapt to changing requirements
- You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
- Familiarity/Experience with Elasticsearch is a huge plus
- Familiarity/Experience with FastAPI nice to have
- You are experienced Python Developer, with minimum 5 years in commercial Python experience
- You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
- You have excellent knowledge of data structures, software design patterns and software architecture
- You are comfortable working in a fast-paced environment and can adapt to changing requirements
- You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
- Familiarity/Experience with Elasticsearch is a huge plus
- Familiarity/Experience with FastAPI nice to have
- 2 + years of software development experience utilizing Java based frameworks and technologies to build enterprise grade product solutions.
- 2+ years of experience designing, developing and documenting RESTful APIs.
- Strong understanding of concepts/technologies like Spring MVC, Spring boot, J2EE, EJB, application/API security, API governance/gateway platforms like apigee or kong.
- Good understanding of RDMS concepts and development preferably using MS SQL Server.
- Experience using test automation technologies like cucumber, selenium is a big plus.
- Partner with scrum masters to address technical blockers/impediments to progress.
- Prior experience working with agile scrum-based development methodology. Participate in sprint planning and estimate development efforts for features and stories.
- Partner with DevOps to install and configure/tune application containers like embedded Spring boot tomcat and webserver technologies preferably nginx or apache.
- Partner with cloud engineering group to outline the infrastructure provisioning requirements/needs for new product development.
- Design and develop CI/CD tools and process preferably using Jenkins to configure build jobs for APIs and design pipeline to promote artifacts from development all the way to production
- Experience with messaging technologies like kafka is a huge plus
- Work with Test Automation engineering team to integrate test automation scripts as part of the CI/CD process.
- Prior proven experience of utilizing and productionizing container/container orchestration technologies like Docker, kubernetes.
- Participate and Resolve issues related deployments, application performance etc.
Role: Java developer
Location: Gurgaon
Exp-3-5 yrs
Description:
- 3+ years of Coding and development experience
2. Hands on technical experience in must have technical requirements.
3. Strong working knowledge of Developing, Designing and implementing large scale enterprise applications.
4. Possess strong analytical skills, organizational skills, attention to detail, and excellent verbal and written communication skills.
5. Ability to establish and maintain effective working relationships with co-workers, managers and internal and/or external customers.
6. Knowledge of Agile process
REQUIRED TECHNICAL SKILL SET
Must have: AWS, Java, J2EE, Angular, React, Javascript, Spring MVC, Webservices (REST), Servlets, Hibernate
Nice to have: EXTJS, JBoss Drools Rules Engine, JQuery
RESPONSIBILITIES
1. Analyses and evaluates detailed business and technical requirements.
2. Codes and maintains complex components of information systems.
3. Develops and performs unit testing and fixes defects identified during testing and re-executes unit tests to validate results.
4. Ensure code quality by performing technical design and code reviews
5. Perform integration via Services/Batch with external and internal systems; develop presentation, business/application services and persistence components
6. Module level ownership and ensure that any development that occurs in that module is as per the agreed solution.
7. Profiling & Performance turning of Javaapplications















