
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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We are a dynamic and innovative technology company dedicated to delivering cutting-edge solutions that empower businesses and individuals. As we continue to grow and expand our offerings, we are seeking a coding fanatic, who is interested in working on and learning new technologies.
Position - Backend developer
Job type - Freelance or on contract
Location - Remote
Roles and Responsibilities:
- Plan,create and test REST APIs for back-end services such as authentication and authorization.
- Deploy and maintain backend systems on the cloud.
- Research and develop solutions for real life business problems.
- Creating and maintaining our apps' essential business logic, providing correct data processing and flawless user experiences.
- Database design, implementation, and management, including schema design, query optimisation and data integrity.
- Participating in code reviews, providing constructive input, and ensuring that code quality standards are met.
- Keep abreast of industry developments and best practices to bring new solutions to our initiatives.
Required skills and experience -
Must have skills : -
- Bachelor’s degree in computer programming, computer science, or a related field.
- 3 + years of experience in backend development.
- Proficient in Python,Mongodb,postgres/sql,Django and Flask
- Knowledge on nginx.
- C++/C +Cython for creating python modules
- Knowledge on Redis
- Familiarity with using AI provider apis and prompt engineering
- Experience in working with linux based instances on the cloud.
- Strong problem solving and verbal and written communication skills.
- Ability to work independently or with a group.
Good to have skills :-
- Experience in node.js and Java
- AWS and Google cloud knowledge.
Role Overview
We are seeking a Junior Developer with 1-3 year’s experience with strong foundations in Python, databases, and AI technologies. The ideal candidate will support the development of AI-powered solutions, focusing on LLM integration, prompt engineering, and database-driven workflows. This is a hands-on role with opportunities to learn and grow into advanced AI engineering responsibilities.
Key Responsibilities
- Develop, test, and maintain Python-based applications and APIs.
- Design and optimize prompts for Large Language Models (LLMs) to improve accuracy and performance.
- Work with JSON-based data structures for request/response handling.
- Integrate and manage PostgreSQL (pgSQL) databases, including writing queries and handling data pipelines.
- Collaborate with the product and AI teams to implement new features.
- Debug, troubleshoot, and optimize performance of applications and workflows.
- Stay updated on advancements in LLMs, AI frameworks, and generative AI tools.
Required Skills & Qualifications
- Strong knowledge of Python (scripting, APIs, data handling).
- Basic understanding of Large Language Models (LLMs) and prompt engineering techniques.
- Experience with JSON data parsing and transformations.
- Familiarity with PostgreSQL or other relational databases.
- Ability to write clean, maintainable, and well-documented code.
- Strong problem-solving skills and eagerness to learn.
- Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent practical experience).
Nice-to-Have (Preferred)
- Exposure to AI/ML frameworks (e.g., LangChain, Hugging Face, OpenAI APIs).
- Experience working in startups or fast-paced environments.
- Familiarity with version control (Git/GitHub) and cloud platforms (AWS, GCP, or Azure).
What We Offer
- Opportunity to work on cutting-edge AI applications in permitting & compliance.
- Collaborative, growth-focused, and innovation-driven work culture.
- Mentorship and learning opportunities in AI/LLM development.
- Competitive compensation with performance-based growth.
1. Design patterns- socket communication/ micro services architecture
2. Caching - REDIS MEMCACHED etc
3. Database - MONGO, SQL etc. min 2yrs experience with these.
4. Features created for large concurrent requests.
5. Node Js, Go lang any asynchronous programming language min 2 yrs exp with any one of them.
6. Message Queues - RABBIT MQ, Kafka etc.
Job Location - Hyderabad & Ahmedabad
What you'll do:
- Perform complex application programming activities with an emphasis on mobile development: Node.js, TypeScript, JavaScript, RESTful APIs and related backend frameworks
- Assist in the definition of system architecture and detailed solution design that are scalable and extensible
- Collaborate with Product Owners, Designers, and other engineers on different permutations to find the best solution possible
- Own the quality of code and do your own testing. Write unit test and improve test coverage.
- Deliver amazing solutions to production that knock everyone’s socks off
- Mentor junior developers on the team
What we’re looking for:
- Amazing technical instincts. You know how to evaluate and choose the right technology and approach for the job. You have stories you could share about what problem you thought you were solving at first, but through testing and iteration, came to solve a much bigger and better problem that resulted in positive outcomes all-around.
- A love for learning. Technology is continually evolving around us, and you want to keep up to date to ensure we are using the right tech at the right time.
- A love for working in ambiguity—and making sense of it. You can take in a lot of disparate information and find common themes, recommend clear paths forward and iterate along the way. You don’t form an opinion and sell it as if it’s gospel; this is all about being flexible, agile, dependable, and responsive in the face of many moving parts.
- Flexible and willing to accept change in priorities, as necessary
- Demonstrable passion for technology (e.g., personal projects, open-source involvement)
- Enthusiastic embrace of DevOps culture and collaborative software engineering
- Ability and desire to work in a dynamic, fast paced, and agile team environment
- Enthusiasm for cloud computing platforms such as AWS or Azure
- Excellent written and verbal communications skills
Preferred Qualifications:
- Experience with Apache Cordova framework
- Demonstrable knowledge of native coding background in iOS, Android
- Experience developing and deploying applications within Kubernetes based containers
- Experience in Agile and SCRUM development techniques
Node.js Developer / NestJS Developer – Job Description
A Bachelor’s Degree or Master’s Degree in Computer Science is preferred with excellent problem solving skills.
Job Type: Full-time
Job Location: Bengaluru (on site)
Preferred Skills: TypeScript / Nodejs, SQL/ MySQL
Experience: Min 2yrs in similar Role.
Responsibilities:
- Develop and Maintain Server-side Logic: Design, implement, and maintain the server-side logic using Node.js, ensuring high performance and responsiveness to requests from the front-end.
- API Development: Build and maintain RESTful APIs for seamless integration with front-end services and third-party applications.
- Database Management: Work with databases (such as MongoDB, MySQL, PostgreSQL) to ensure data consistency, reliability, and optimal performance.
- Code Quality and Testing: Write clean, maintainable, and efficient code. Implement automated testing platforms and unit tests.
- Collaboration: Work closely with front-end developers, designers, and other team members to define and implement technical solutions that meet business requirements.
- Troubleshooting and Debugging: Identify issues, debug, and resolve bugs and other technical problems in a timely manner.
- Documentation: Create and maintain documentation related to application development, API usage, and system operations.
- Stay Updated: Keep up-to-date with the latest industry trends and technologies to ensure the application remains modern and competitive.
Location - Pune/ Mumbai/ Bangalore
Education
Degree, Postgraduate in Computer Science or related field (or equivalent industry experience)
Experience
- Minimum 5 years of coding experience in NodeJS, JavaScript and Databases.
- At least 1 year hands-on in TypeScript .
- Hands-on experience in performance tuning, debugging, monitoring
Technical Skills
- Excellent knowledge developing scalable and highly-available Restful APIs using NodeJS technologies
- Practical experience with GraphQL.
- Experience in working with AWS platform and its core services like Lambda, Cloud Watch, Cloud Formation, CDK, SQS, S3 etc., or its equivalent Azure services
- Hands-on working experience in front-end applications development with HTML, CSS, Node JS with strong working experience in backend technologies Java, TypeScript and JavaScript programming languages.
- Understanding of containerization, experienced in Dockers , Kubernetes.
- Exposed to API gateway integrations like 3Scale.
- Understanding of Single-Sign-on or token-based authentication (Rest, JWT, oAuth)
- Experience on DevOps ways of working with good understanding on CI/CD and actively involved in solving, troubleshooting issues in distributed services ecosystem
- Hands on experience with both SQL and No-SQL databases.
- More than 3 years proven experience in developing high volume scalable cloud solutions utilizing platforms like Amazon AWS or Microsoft Azure.
- Possess expert knowledge of task/message queues include but not limited to: AWS, Microsoft Azure, Pushpin and Kafka
Functional Skills
- Experience in following best Coding, Security, Unit testing and Documentation standards and practices Experience in Banking, Financial and Fintech experience in an enterprise environment preferred
- Experience in Agile methodology.
- Ensure quality of technical and application architecture and design of systems across the organization.
- Effectively research and benchmark technology against other best in class technologies.
Soft Skills
- Able to influence multiple teams on technical considerations, increasing their productivity and effectiveness, by sharing deep knowledge and experience.
- Self-motivator and self-starter, Ability to own and drive things without supervision and works collaboratively with the teams across the organization.
- Have excellent soft skills and interpersonal skills to interact and present the ideas to Senior and Executive management
StoryXpress (a Techstars-backed company) is an end-to-end video platform and is an efficient and effective way of humanizing the way you promote and sell your product or services, and communicate with your customers. With a suite of professional video tools (Video Creator, Video Recorder, Video Hosting and Analytics, Video APIs, and SDKs), we help small and medium-sized businesses drive more revenue through the strategic use of video. Founded in 2014, StoryXpress has a rich community of 500K+ users including small enterprises to Fortune 500 companies.
Why Work with Us:
-
Get an opportunity to contribute to an exciting, forward-thinking and fast-moving Start-Up.
-
Shape-Up your career by working with young and supportive teams and peers!
-
Innovation and Creativity is all what matters!
-
Friendly Policies, good competitive salaries, team outings and what not!
Job Description:
We're looking for an enthusiast Back End Developer who will be an integral part of the early StoryXpress team and can produce scalable solutions. The creativity and intelligence are much more essential to us than the experience with our stack.Thus, you’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment, in order to strive for excellence!
If you’re also familiar with Agile methodologies, we’d like to meet you :)
Job Responsibilities:
Building and scaling web products that directly impact our customers or partners.
Translate several RESTful data sources to be used in a front-end application.
Dig into bugs and feature requests.
Monitor reliability and performance through dashboards and tools to ensure availability.
Help other engineers on the team and across StoryXpress.
Work with our team to engineer new growth initiatives.
Job Requirements:
- Skills: Node.js, Express.js, REST APIs, Express.js, MySQL, Git, Go
- Proficiency JavaScript developer.
- Should have a good understanding of micro-server architecture and REST API.
- Thorough understanding of MVC principles and JS design patterns. *Node.js, Express.js, MySQL should be thoroughly worked upon
- GIT, GitOps and standard versioning management tools should be known.
- Knowledge of User authentication and authorization between multiple systems, servers, and environments.
Brownie Points For:
- Knowledge of Go will be a big plus
- Experience with Redis and TypeScript would fetch you a brownie point
Are you passionate about using technology to make people's lives better? Are you interested in becoming a part of one of the hottest trends in the world of start-ups today? Are you excited about joining the online ultra-fast grocery delivery service business pioneer and driving the trend forward? Then this may be the right opportunity for you.
Role and Responsibilities
- Helping lead the software development lifecycle: technical design, implementation, testing, deployment, and support.
- Working with cross-functional teams effectively to enable business growth.
- Proactively identifying engineering bottlenecks and initiating proposals to improve them.
- Writing high-quality, well-tested code in alignment with industry-wide best practices.
- Applying a product mindset to back-end systems.
-
- About five years of experience delivering product-quality code in an agile set-up
- Experience with Node.js (Hapi, Restify, Express, Mongoose, Socket.IO, Mocha)
- Experience with Elasticsearch
- Experience building and deploying Docker containers
- Strong general Linux experience
- Extensive experience with REST APIs
- Experience with microservice architecture
- Experience with MongoDB
- Expert knowledge of Redis and caching strategies
- Strong knowledge of unit/integration testing, including the art of mocking and writing testable code
- Passionate about technology and making an impact.
- A perpetual learner, who stretches their boundaries and enjoys new ideas.
- A doer who takes initiative and works well in a team.
Blok is a technology-first online ultra-fast grocery delivery service business, and we are on our way to revolutionize how millions of people across countries consume groceries. We believe in a world where getting everything you need, when you need it, sustainably, is the new normal. And it takes less than 10 minutes.
We believe we are positioned to lead this revolution. Why? Our founding and early team have held senior positions at Deliveroo, Uber, Glovo, Mercadona, or Unilever. We have done this before, and we believe we can do it again. But this time, even better.
Embark on the journey and help us launch the revolution in one of the highest growth industries of the year. Help us shape the new normal.
Job type: Permanent with ACL Digital
Client: Concentrix
Required skills:
- MySQL, or Postgres
- Linux systems
- Agile Methodologies
- Good communication skills
















