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Job Title: Lead Web App Developer - Backend
Experience: 10–15 Years
Location: Bengaluru
Role Overview:
We are seeking an experienced Lead Web App Developer - Backend to design and maintain scalable, cloud-based backend systems. This role demands expertise in microservices, AWS, and backend technologies to deliver efficient and high-performing applications.
Key Responsibilities:
- Build and maintain scalable backend systems for cloud-based web applications.
- Develop microservices using AWS (Lambda, SQS, SNS) and databases (MySQL, NoSQL).
- Design and implement REST APIs for seamless communication between systems.
- Create containerized solutions with Docker for efficient deployment.
- Solve real-world problems with enterprise-class product designs.
- Contribute to key decisions on product and technology direction.
- Promote frameworks, standards, and new technologies within the team.
Required Skills:
- Experience: 10+ Years in backend development; 3+ Years in large-scale, microservices-based projects.
- Backend Technologies: Proficiency in Python, Node.js, and Java.
- Cloud Expertise: Strong experience with AWS services (Lambda, SQS, SNS).
- Database Skills: Expertise in MySQL and NoSQL databases.
- Microservices Architecture: Deep understanding of distributed systems and scalability.
- DevOps Tools: Hands-on experience with Docker.
- API Development: Proven expertise in designing and consuming REST APIs.
- Soft Skills: Excellent problem-solving and communication abilities.
Why Join Us?
- Work on impactful projects with real-world applications.
- Solve complex problems in a dynamic, fast-paced environment.
- Collaborate with a team of skilled professionals.
ey Responsibilities:
- Design, develop, and maintain microservices using Java (Spring Boot).
- Implement RESTful APIs and ensure integration with front-end and third-party services.
- Work with AWS services such as EC2, ECS, Lambda, S3, RDS, API Gateway, CloudWatch, etc.
- Utilize CI/CD pipelines (Jenkins / GitHub Actions / AWS CodePipeline) for deployment automation.
- Implement security, scalability, and high availability best practices in microservice architecture.
- Collaborate with DevOps, QA, and Product teams to deliver robust solutions.
- Monitor and troubleshoot production issues using AWS CloudWatch / ELK / Prometheus & Grafana.
- Participate in code reviews, design discussions, and agile ceremonies.
Required Skills & Qualifications:
- Strong proficiency in Java 8+, Spring Boot, Spring Cloud, and RESTful APIs.
- Solid understanding of microservices architecture and service discovery / communication patterns (Eureka, Feign, Ribbon, etc.).
- Hands-on experience with AWS Cloud (ECS, Lambda, API Gateway, RDS, DynamoDB, S3, CloudFormation).
- Experience with Docker and Kubernetes for containerization and orchestration.
- Proficient in RDBMS / NoSQL databases (MySQL, PostgreSQL, MongoDB).
- Familiar with CI/CD pipelines, Git, and DevOps best practices.
- Knowledge of message brokers (Kafka, RabbitMQ, SQS) is a plus.
- Strong debugging, problem-solving, and analytical skills.
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.
We are looking for a Senior Backend Engineer with a strong background in building distributed, scalable, and high-performance backend systems. The ideal candidate has 6+ years of backend engineering experience, including 3+ years in microservices or distributed architecture, and deep expertise in Python, FastAPI, PostgreSQL, Redis, and async I/O patterns.
The candidate will own backend services end-to-end — from architecture and design to implementation, optimization, and production support — while working closely with cross-functional teams to deliver mission-critical systems.
Key Responsibilities
1. Backend Architecture & Development
- Architect, design, and implement backend services using Python (preferably FastAPI) with clean, maintainable, and scalable code.
- Develop microservice components, service communication layers, and distributed workflows.
- Build APIs and backend modules optimized for performance, fault tolerance, and low latency.
2. Distributed Systems & Scalability
- Design and maintain distributed systems capable of handling high throughput and large-scale operations.
- Implement inter-service communication patterns (REST, event-driven, message queues, pub/sub).
- Ensure system resiliency through redundancy, graceful degradation, and autoscaling strategies.
3. Asynchronous & Event-Driven Architecture
- Build async workflows, background tasks, and pipeline services leveraging asyncio or async frameworks.
- Develop event-driven components including producers, consumers, and event processors.
- Optimize I/O-heavy operations to maximize concurrency and throughput.
4. Data Storage, Pipelines & Caching
- Design relational schemas, write optimized SQL queries, and work with PostgreSQL performance tuning (indexes, partitions, query planning).
- Implement caching strategies, rate limiting, distributed locks, and session storage using Redis.
- Build data validation pipelines and compliance-driven data flows ensuring data correctness and auditability.
5. Security, Reliability & Observability
- Implement authentication, authorization, encryption, and secure API practices.
- Build monitoring, alerting, metrics, and tracing systems using modern observability tools.
- Diagnose production issues, identify bottlenecks, and drive long-term fixes and improvements.
6. Code Quality & Technical Leadership
- Conduct detailed code reviews and ensure engineering best practices across the team.
- Participate in technical roadmap planning, architectural discussions, and system design decisions.
- Mentor junior and mid-level engineers; drive a culture of technical excellence and ownership.
Required Qualifications
- 6+ years backend engineering experience.
- 3+ years building microservices or distributed systems.
- Strong expertise in Python and frameworks like FastAPI (or Flask/Django with async exposure).
- Deep understanding of async I/O, concurrency models, and asynchronous programming in Python.
- Strong experience with PostgreSQL (schema design, advanced queries, optimization).
- Hands-on experience with Redis for caching, queues, session management, and distributed patterns.
- Experience with event-driven architectures, message processing, or streaming systems.
- Solid understanding of system design, scalability principles, and API lifecycle management.
- Experience working with CI/CD pipelines, containerization (Docker), and cloud environments.
Preferred Skills:
- Experience with XML-based web services (SOAP, REST).
- Knowledge of database technologies (SQL, NoSQL) for XML data storage.
- Familiarity with version control systems (Git, SVN).
- Understanding of JSON and other data interchange formats.
- Certifications in XML technologies are a plus.
We are looking for someone who: ● Has 3+ years of experience working as a Backend Developer in high-growth consumer internet companies ● Is proficient in building RESTful APIs, has a strong understanding of relational and non-relational databases ● Prior working knowledge of Python/Django is a big plus ● Familiarity with modern CI/CD tools ● Knowledge of AWS or any other Cloud Platform services ● Ability to analyze and convert business requirements into technical requirements ● Has a high sense of ownership and a bias for action ● Is a people’s person and can lead without authority What will they be responsible for ● They will work on one or more of the tracks mentioned above ● Own the end-to-end delivery - design, execute, test and deploy ● Work as an individual contributor, champion code quality ● Build and train a team of rockstar engineers as the organization grows Why should this role excite you We are just getting started and people who join us at this juncture will: ● Do fulfilling, high-impact work ● Work directly with the founders and engineering leads ● Own and deliver, get complete ownership of whatever you do ● Work with colleagues from strong diverse backgrounds ● Solve a problem that millions of Indians are emotionally attached to but hasn’t seen any innovation ● Learn and grow at an unprecedented pace Tactical details ● Current stack: Python/Django, React, Kafka, Docker, AWS ● Location: Bengaluru (Work from office) ● Compensation: Structured as Fixed + ESOPs
Zycus is looking for a Senior Software Engineer to join it's Engineering team. Candidates with experience working on Spring, Hibernate, Microservices, Angular/react, JMS/Rabbit MQ/Kafka, AWS Cloud and are passionate about building a product are encouraged to apply. Zycus is a Global leader and a pioneer in cognitive procurement software. Our clients are among the fortune 500 companies. We build enterprise AI procurement software product using some of the latest technologies.
In this role, you will work in developing a product which is not only recognized by Gartner as one of the top Source To Pay procurement software but is also industry's only organically-built & integrated source-to-pay suite.
Role and Responsibilities:
The Engineering team is looking for collaborative, passionate, and adaptable Senior Software Engineer.
- Strong coding experience of about 5-9 years.
- A team of experienced engineers with lots of interesting challenges to dive into.
- Modern technology stack: Cloud, Machine Learning, Artificial Intelligence, Microservices etc.
- Experience working on Spring, Spring Boot, Hibernate, Microservices, Angular/react, JMS/Rabbit MQ/Kafka, AWS Cloud.
- Should be able to build solution which is easily scalable, high speed/ real-time performance, configurable, deploy-able and secure in SaaS environment using any open source tech stack.
- Build features and modules from scratch & Maintain existing features and modules.
- Should be able to identify, track and mitigate risks to the product.
- Ability to work independently.
Requirements
- 5-9 years’ experience in Java, J2EE and associated technologies (Spring, Hibernate, Web Services, Micro Services, Spring boot)
- Technical Skills: Core Java, Advanced Java, J2EE, Exception handling, Collections, Oops, UML, Oracle, Jenkins, Maven & Linux
- Should be able to build solutions which is easily configurable, deploy able and secure in SaaS environment.
- Must have worked spring boot Extensively.
- Strong hands on development experience in Java, J2EE.
- Should be able to identify, track and mitigate risks to the product
- Responsible for planning product iterations & releasing iterations on schedule.
What should you have:
- Product development experience in agile environment will be a big plus though not mandatory.
- Highly Tech Savvy and hands-on.
- Strong evidence of a solution/product created ground up.
Product Development:
- Has in-depth knowledge on technology and end to end development processes.
- Has the ability to recommend new processes/alternatives to meet Product Development requirements and rolling them out.
Benefits
Five Reasons Why You Should Join Zycus
1. Cloud Product Company: We are a Cloud SaaS Company and our products are created by using the latest technologies like ML and AI. Our UI is in Angular JS and we are developing our mobile apps using React.
2. A Market Leader: Zycus is recognized by Gartner (world’s leading market research analyst) as a Leader in Procurement Software Suites.
3. Move between Roles: We believe that change leads to growth and therefore we allow our employees to shift careers and move to different roles and functions within the organization
4. Get a Global Exposure: You get to work and deal with our global customers.
5. Create an Impact: Zycus gives you the environment to create an impact on the product and transform your ideas into reality. Even our junior engineers get the opportunity to work on different product features.
About Us
Zycus is a pioneer in Cognitive Procurement software and has been a trusted partner of choice for large global enterprises for two decades. Zycus has been consistently recognized by Gartner, Forrester, and other analysts for its Source to Pay integrated suite. Zycus powers its S2P software with the revolutionary Merlin AI Suite. Merlin AI takes over the tactical tasks and empowers procurement and AP officers to focus on strategic projects; offers data-driven actionable insights for quicker and smarter decisions, and its conversational AI offers a B2C type user-experience to the end-users.
Zycus helps enterprises drive real savings, reduce risks, and boost compliance, and its seamless, intuitive, and easy-to-use user interface ensures high adoption and value across the organization.
Start your #CognitiveProcurement journey with us, as you are #MeantforMore
Click here to Apply :
https://apply.workable.com/zycus-1/j/A236ED266C/">Senior Software Engineer - Zycus (workable.com) - Pune.
https://apply.workable.com/zycus-1/j/B03314F49F/">Senior Software Engineer - Zycus (workable.com) - Mumbai.
They are working on using drones to neutralize terrorists hidden in deep forests.
Responsibilities
Write effective, scalable code
Develop back-end components to improve responsiveness and overall performance
Integrate user-facing elements into applications
Test and debug programs
Improve functionality of existing systems
Implement security and data protection solutions
Assess and prioritize feature requests
Coordinate with internal teams to understand user requirements and provide technical solutions
Requirements
Work experience as a Python Developer
Expertise in at least one popular Python framework (experience in Flask preferred)
Knowledge of object-relational mapping (ORM)
Familiarity with front-end technologies (like JavaScript and HTML5)
Team spirit
Good problem-solving skills
BSc in Computer Science, Engineering or relevant field
- Work experience as Python developer
- Should have experience in developing and working on consumer facing web/app products on in Django framework
- Should have experience working with react js front end design.
- Thorough knowledge of data stores, MyScore AWS services and should have experience with EC2, ELB, AutoScaling, CloudFront, S3
- Experience in Frontend codebases using HTML, CSS and Javascript
- Good understanding of Data Structures, Algorithms and Operating Systems
- Good experience of developing and integrating APIs
- Knowledge of object-relational mapping (ORM)
- Able to integrate multiple data sources and databases into one system (mysql)
- Understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
- Proficient understanding of code versioning tool (git)
- Good problem-solving skills











