
We are looking for an experienced Lead Java Developer to join our team and take a leadership role in driving the design, development, and delivery of highquality software solutions. A Senior Java Lead Developer will be responsible for leading a team of developers, providing technical guidance, and ensuring the successful execution of projects. Should have a strong background in Java development, excellent leadership skills, and a track record of delivering complex software projects on time. System Architect: Should have Architect the system before for a large scale solution Understanding of various java design pattern and use the pattern which is more appropriate Understanding of various micro-service design pattern and use the pattern which is more appropriate Has worked on DDD with CQRS Has designed solution for multi tenant application. Technical skills: Used latest version of java and good understanding of it Skilled in spring boot, spring MVC Basic Skill: 10+ years of experience in development. Good communication skills in English. Testing: Skilled in using Junit Security: Good understanding of application security Understanding of DDOS and best practice for that Good understanding of rate limiting API Good understanding about spring security or any thing better Database: Great understanding of MySQL Experience in extensively using hibernate Debugging: Understanding about Logging Skilled in debugging production issue

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Job Title: Lead Backend Web App Developer
Experience: 10–15 Years
Location: Bengaluru (Hybrid)
Role Overview:
We are seeking an experienced Lead Backend Web App Developer 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.
About the company
Sigmoid is a leading data solutions company that partners with Fortune 500 enterprises to drive digital transformation through AI, big data, and cloud technologies. With a focus on scalability, performance, and innovation, Sigmoid delivers cutting-edge solutions to solve complex business challenges.
About the role
You will be responsible for building a highly scalable, extensible, and robust application. This position reports to the Engineering Manager.
Responsibilities:
- Align Sigmoid with key Client initiatives
- Interface daily with customers across leading Fortune 500 companies to understand strategic requirements
- Ability to understand business requirements and tie them to technology solutions
- Open to work from client location as per the demand of the project / customer
- Facilitate in Technical Aspects
- Develop and evolve highly scalable and fault-tolerant distributed components using Java technologies
- Excellent experience in Application development and support, integration development and quality assurance
- Provide technical leadership and manage it day to day basis
- Interface daily with customers across leading Fortune 500 companies to understand strategic requirements
- Stay up-to-date on the latest technology to ensure the greatest ROI for customer & Sigmoid
- Hands on coder with good understanding on enterprise level code
- Design and implement APIs, abstractions and integration patterns to solve challenging distributed computing problems
- Experience in defining technical requirements, data extraction, data transformation, automating jobs, productionizing jobs, and exploring new big data technologies within a Parallel Processing environment
Culture:
- Must be a strategic thinker with the ability to think unconventional / out-of-box
- Analytical and solution driven orientation
- Raw intellect, talent and energy are critical
- Entrepreneurial and Agile: understands the demands of a private, high growth company
- Ability to be both a leader and hands-on "doer"
Qualifications:
- Years of track record of relevant work experience and a computer Science or a related technical discipline is required
- Experience in development of Enterprise scale applications and capable in developing framework, design patterns etc. Should be able to understand and tackle technical challenges and propose comprehensive solutions
- Experience with functional and object-oriented programming, Java or Python is a must
- Experience in Springboot, API, SQL
- Good to have: GIT, Airflow, Node JS, Python, Angular
- Experience with database modeling and development, data mining and warehousing
- Unit, Integration and User Acceptance Testing
- Effective communication skills (both written and verbal)
- Ability to collaborate with a diverse set of engineers, data scientists and product managers
- Comfort in a fast-paced start-up environment
- Experience in Agile methodology
- Proficient with SQL and its variation among popular databases
Senior Back-end Engineer Developer
What We Need
Looking for a senior back-end developer who will start working in our Bangalore office and then will be given an opportunity to move to Netherlands to work closely with our clients
- A highly motivated and experienced frontend software engineer / developer with a proven track record (at least 5 years of experience).
- A Bachelor’s degree in computer science.
- Someone who loves to work in a multidisciplinary team of engineers and business colleagues in a high-tech environment.
- You are able to work in a dynamic and demanding environment, a real team player and a speak-up mentality to promote your ideas in a concise way.
- You are a problem-solver and see yourself as a hardcore web developer.
- You have knowledge of, and experience with, different web technologies.
- You are skilled with implementing architecture & design patterns.
- You can write modular code that is configurable, extensible and testable.
- You have great analytical skills, conceptual understanding and able to quickly understand new technical concepts.
- You have a strong interest in the latest trends in software development & web technologies.
- You have strong communication skills to explain complex technical concepts.
- You are fluent in English both in verbal and written.
We are looking for a back-end engineer / developer:
Proficiency / experience with following technologies & tools:
- Thorough and deep understanding of Java JDK 11+, our foundational programming language
Spring Framework & AOP v5.2+
- Proven experience working with, and a deep understanding of Spring Boot 2.5+ and its modules (Web, Data JPA, Security OAuth2) and ability to explain complex use-cases related to persistency and web security
- Experience with Maven v3+
- Experience with containerization and deployments tools (eg. Docker v20+ and Kaniko, Helm (charts) v3+ with Kubernetes deployments)
- Experience working with CI/CD tools like GitLab SCM & pipelines and JFrog Artifactory
- Strong knowledge working with different types of SQL and NoSQL databases such as PostgreSQL v12+, MongoDB v4+ and Neo4J v4+
- Proficient in working with DevOps engineers on Cloud deployments (eg. Azure subscriptions)
- Experience in Agile/Scrum & (pref.) SAFe (Scaled Agile Framework) and enabling tooling – Atlassian Jira Cloud / Jira Align
- Experienced and skilled in full-stack development.
- Leading and solutioning product development of secure and high-performance applications.
- Good understanding of REST APIs and working knowledge of HTTP(S).
- Experienced in testing stack – Junit / Mockito
- Experience with software quality & vulnerability testing – SonarQube and Blackduck
- Proficient in writing software documentation on Atlassian Wiki
- Proficient in implementing data structures, algorithm design and OOPs concepts.
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts.
Summary
Miko is an advanced consumer robotics innovation lab focused with the mission of Bringing Robotics and AI to every consumer home. Founded by young and dynamic entrepreneurs from IIT Bombay, Miko is a global deep tech company with offices in US, UK and India, and customer base across 140+ countries. Focused on taking Robotics and AI to every consumer home, Miko is the first of its kind "content on subscription" hardware platform for kids powered by patented technology.
Our flagship products, Miko 3 and Miko Mini (www.miko.ai), are playful companion robots that engage, educate and entertain kids. Their unique approach is to focus on child learning and development through self-initiated contextual topics that encourage conversational learning. It hosts a powerful marketplace for third party content partners to plug their content and connect with Miko users on subscription.
Miko is powered by a proprietary emotional intelligence and adaptive personality engine, complex conversational and multilingual AI framework, edge and hybrid speech & vision recognition along with an active learning and behavioral analysis engine. All of this is built over an autonomous navigation system, which enables Miko to offer a range of benefits for the user.
The team at Miko team is an interdisciplinary team consisting of team members from electronics, embedded system, mechanical, industrial, robotics and AI engineering domains, Human Robot Interface designers, UI/UX designers, mobile and cloud software engineers, content creators, artists, mathematicians, neuropsychologists, marketing and sales mavericks, Customer support professionals and knowledge partners.
The Role
We are looking for a middleware software engineer to join the team. In this role you will be working on designing, developing and optimizing the middleware stack for current as well as new companion robot products.
Work Experience & Qualifications
2 years or higher industry experience in the Software domain. No restrictions on degree/qualifications; only skills matter. (* for Junior role)
Responsibilities
- Designing and developing software on the product to enhance current functionality and add new features. Lead the technical delivery of assigned tasks/projects.
- Consistent coordination and collaboration with the Backend, AI, Product and QA team for efficient development cycles and testing for new features and improvements.
- Operating in an Agile/Scrum environment to deliver high quality software against aggressive schedules
- Ability to diagnose, troubleshoot and perform root cause analysis of critical business and production issues
- Strong technical leadership with experience building software engineering teams. Demonstrate strong ambiguity resolution skills to be able to break down ambiguous problems into simpler milestones and delegate to junior engineers
Requirements & Skills
- 2+ years of experience as a Software Engineer
- Expertise in C/C++ and Java
- Strong understanding of environment management, release management, code versioning best practices, and deployment methodologies.
- Experience with implementing various communication protocols like I2C, SPI, UART
- Experience working on Embedded Linux OS and Android
- Demonstrated experience in developing multi-threaded applications
- Experience with IPC including socket programming
- Should have hands on experience and thorough knowledge in STL, BOOST understanding of data structures and algorithms
- Experience with using Git as a version control system
- Excellent coding and debugging skills
- Ability to work in a fast paced environment
- Excellent verbal and written communication skills
Responsibilities:
Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.
Collaborate with cross-functional teams including product managers, designers, and other developers to
understand requirements and translate them into technical solutions.
Design and implement new features and functionalities in the ad-serving system, focusing on performance
optimization and reliability.
Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure
uninterrupted service.
Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality
and consistency across the platform.
Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate
relevant innovations into our platform.
Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.
Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development
efforts for new projects and features.
Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and
improvement within the development team.
Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime
and reliability of the ad-serving platform.
- 5-7+ years of commercial Java development experience
- Experience with well known Open Source frameworks/libraries, like Spring Boot
- Work experience with Docker
- Microservice experience
- Experience with AWS like ECS, Lambda, SQS, RDS, Kinesis streams
- Familiar with iterative development
- Upper-intermediate level of English
- Solid understanding of communication and network protocols (TCP/IP, HTTP).
- At ease with Unix/Linux
- Excellent analytical and debugging skills
- Familiar with both SQL and noSQL databases (MySQL, DynamoDB, Memcached, Redis)
- Practical experience with scaling applications to big user numbers is a plus
- Experience with other programming languages is a plus.












