Lead / Software Architect

Job Title : Senior Consultant (Java / NodeJS + Temporal)

Experience : 5 to 12 Years

Location : Bengaluru, Chennai, Hyderabad, Pune, Mumbai, Gurugram, Coimbatore

Work Mode : Remote (Must be open to travel for occasional team meetups)

Notice Period : Immediate Joiners or Serving Notice

Interview Process :

• R1 : Tech Interview (60 mins)
• R2 : Technical Interview
• R3 : (Optional) Interview with Client

Job Summary :

We are seeking a Senior Backend Consultant with strong hands-on expertise in Temporal (BPM/Workflow Engine) and either Node.js or Java.

The ideal candidate will have experience in designing and developing microservices and process-driven applications, as well as orchestrating complex workflows using Temporal.io.

You will work on high-scale systems, collaborating closely with cross-functional teams.

Mandatory Skills :

Temporal.io, Node.js (or Java), React.js, Keycloak IAM, PostgreSQL, Terraform, Kubernetes, Azure, Jest, OpenAPI

Key Responsibilities :

• Design and implement scalable backend services using Node.js or Java.
• Build and manage complex workflow orchestrations using Temporal.io.
• Integrate with IAM solutions like Keycloak for role-based access control.
• Work with React (v17+), TypeScript, and component-driven frontend design.
• Use PostgreSQL for structured data persistence and optimized queries.
• Manage infrastructure using Terraform and orchestrate via Kubernetes.
• Leverage Azure Services like Blob Storage, API Gateway, and AKS.
• Write and maintain API documentation using Swagger/Postman/Insomnia.
• Conduct unit and integration testing using Jest.
• Participate in code reviews and contribute to architectural decisions.

Must-Have Skills :

• Temporal.io – BPMN modeling, external task workers, Operate, Tasklist
• Node.js + TypeScript (preferred) or strong Java experience
• React.js (v17+) and component-driven UI development
• Keycloak IAM, PostgreSQL, and modern API design
• Infrastructure automation with Terraform, Kubernetes
• Experience in using GitFlow, OpenAPI, Jest for testing

Nice-to-Have Skills :

• Blockchain integration experience for secure KYC/identity flows
• Custom Camunda Connectors or exporter plugin development
• CI/CD experience using Azure DevOps or GitHub Actions
• Identity-based task completion authorization enforcement

Experience: 10 to 20 years

Location: Bangalore

We are seeking a passionate and skilled Java Technical Lead with 8 to 12 years of experience in product

development and team leadership. As a key member of our global software development team, you

will be responsible not only for solving complex technical problems but also for leading and mentoring

engineers, driving the design of scalable systems, and ensuring high quality delivery across projects.

Experience in leading development teams, managing end

to end project delivery, and working directly

with clients to translate business problems into technical solutions is essential.

Key Responsibilities:

Lead the design, development, testing, a nd deployment of scalable Java applications.

Break down client/business problems and define clear technical tasks for the team.

Provide technical guidance and mentorship to team members throughout the development

lifecycle.

Collaborate with cross functiona l teams to deliver new features and enhancements.

Participate in and lead code reviews, ensuring adherence to best practices and maintaining

code quality.

Own and drive the architecture and design discussions for new modules and systems.

Ensure timely deli very of project milestones and proactively resolve technical blockers.

Evaluate and integrate new tools and technologies to improve efficiency and product quality.

Serve as the primary technical point of contact for your team and stakeholders.

Required Ski

lls:

8+ years of hands on experience in Java development.

Proven experience in building products or applications from scratch (not just

maintenance/support).

Strong object oriented programming skills and hands on experience with Spring, Spring Boot,

Hibernate, etc.

Solid understanding of system architecture, design patterns, and microservices architecture.

Experience in leading small to mid sized teams and managing technical delivery.

Proficiency in data structures, algorithms, and performance optimiz ation.

Strong communication and stakeholder management skills.

Experience working with RESTful APIs and cloud platforms such as AWS, Azure, or GCP is a

plus.

Good understanding of SQL and NoSQL databases.

Strong debugging, troubleshooting, and problemStrong debugging, troubleshooting, and problem--resoresolution skills.lution skills.

Desired Attributes:

Desired Attributes: Excellent problemExcellent problem--solving and decisionsolving and decision--making skills.making skills. High levels of ownership, accountability, and selfHigh levels of ownership, accountability, and self--drive.drive. Strong team leadership and collaboration abilities.Strong team leadership and collaboration abilities. Proactive attitude and commitment to engineering excellenProactive attitude and commitment to engineering excellence.ce. Recognitions or awards in previous roles are a big plus.Recognitions or awards in previous roles are a big plus. Passion for continuous learning, coaching others, and improving team capabilities.Passion for continuous learning, coaching others, and improving team capabilities.

About Wissen Technology:

About Wissen Technology:

Wissen Technology is a niche global consulting and solutions company that brings unpa

Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain ralleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with bestCanada, with best--inin--class infrastructclass infrastructure and development facilities. Wissen has successfully delivered ure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.includes more than 4000 highly skilled professionals.

Wissen Technology provides exceptional

Wissen Technology provides exceptional value in mission critical projects for its clients, through value in mission critical projects for its clients, through thought leadership, ownership, and assured onthought leadership, ownership, and assured on--time deliveries that are always ‘first time right’.time deliveries that are always ‘first time right’.

Our team consists of 1500+ highly skilled professionals, with leadership and senior management

Our team consists of 1500+ highly skilled professionals, with leadership and senior management eexecutives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and xecutives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world.with rich work experience in some of the biggest companies in the world.

Wissen Technology offers an array of services including Application Development,

Wissen Technology offers an array of services including Application Development, Artificial Intelligence Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.

We have been certified as a

We have been certified as a Great Place to WorkGreat Place to Work®® for two consecutive years (2020for two consecutive years (2020--2022) and voted 2022) and voted as the Top 20 AI/ML vendor as the Top 20 AI/ML vendor by CIO Insider.by CIO Insider.

Required Core Tech Stack:

We're looking for engineers with hands-on experience across most of the following technologies:

• Python Backend Development (3+ years)
• FastAPI (2+ years of production experience required)
• PostgreSQL
• MongoDB
• Redis
• Docker
• Celery or equivalent async task queues
• REST APIs & Microservices
• AWS/GCP
• GitLab CI/CD

The selected Sr. Backend engineer will ship the backbone that powers 4 million + learners in 64 countries—owning APIs that crunch 1 billion learning events & the AI that supports it with <200 ms latency.

What You'll Do:

At LearnTube, we’re pushing the boundaries to revolutionize how the world learns. As a Senior Backend Engineer, your roles and responsibilities will include:

• Shipping Micro-services – Build FastAPI services that handle ≈ 800 req/s today and will triple within a year (sub-200 ms p95).
• Power Real-Time Learning – Drive the quiz-scoring & AI-tutor engines that crunch millions of events daily.
• Design for Scale & Safety – Model data (Postgres, Mongo, Redis, SQS) and craft modular, secure back-end components from scratch.
• Deploy Globally – Roll out Dockerised services behind NGINX on AWS (EC2, S3, SQS) and GCP (GKE) via Kubernetes.
• Automate Releases – GitLab CI/CD + blue-green / canary = multiple safe prod deploys each week.
• Own Reliability – Instrument with Prometheus / Grafana, chase 99.9 % uptime, trim infra spend.
• Expose Gen-AI at Scale – Publish LLM inference & vector-search endpoints in partnership with the AI team.
• Ship Fast, Learn Fast – Work with founders, PMs, and designers in weekly ship rooms; take a feature from Figma to prod in < 2 weeks.

What makes you a great fit?

Must-Haves (Applicants without these skills are unlikely to move forward):

• 3+ yrs Python back-end experience (FastAPI)
• Strong with Docker & container orchestration
• Hands-on with GitLab CI/CD, AWS (EC2, S3, SQS) or GCP (GKE / Compute) in production
• SQL/NoSQL (Postgres, MongoDB) + You’ve built systems from scratch & have solid system-design fundamentals

Nice-to-Haves

• k8s at scale, Terraform,
• Experience with AI/ML inference services (LLMs, vector DBs)
• Observability: Prometheus, Grafana, OpenTelemetry

Why LearnTube?

• Build AI products at global scale – Your work will power learning experiences for 4M+ learners across 64 countries.
• Work directly with experienced founders – Collaborate closely with founders who are deeply involved in product and engineering decisions, giving you ownership and a direct impact on the product roadmap.
• Learn fast – Join a high-performing team where you'll own features end-to-end and solve challenging backend and distributed systems problems.
• Recognized AI startup – LearnTube is a Google Top 20 AI Startup and part of Google's AI First Startup Accelerator, with access to cutting-edge AI technology and mentorship.

Why Work With Us? 

At LearnTube, we believe in creating a work environment that’s as transformative as the products we build. Here’s why this role is an incredible opportunity:

• Cutting-Edge Technology: You’ll work on state-of-the-art generative AI applications, leveraging the latest advancements in LLMs, multimodal AI, and real-time systems.
• Autonomy and Ownership: Experience unparalleled flexibility and independence in a role where you’ll own high-impact projects from ideation to deployment.
• Rapid Growth: Accelerate your career by working on impactful projects that pack three years of learning and growth into one.
• Founder and Advisor Access: Collaborate directly with founders and industry experts, including the CTO of Inflection AI, to build transformative solutions.
• Team Culture: Join a close-knit team of high-performing engineers and innovators, where every voice matters, and Monday morning meetings are something to look forward to.
• Mission-Driven Impact: Be part of a company that’s redefining education for millions of learners and making AI accessible to everyone.

Required Skills: TypeScript, MVC, Cloud experience (Azure, AWS, etc.), mongodb, Express.js, Nest.js

Criteria:

Need candidates from Growing startups or Product based companies only

1. 4–8 years’ experience in backend engineering

2. Minimum 2+ years hands-on experience with:

• TypeScript
• Express.js / Nest.js

3. Strong experience with MongoDB (or MySQL / PostgreSQL / DynamoDB)

4. Strong understanding of system design & scalable architecture

5. Hands-on experience in:

• Event-driven architecture / Domain-driven design
• MVC / Microservices

6. Strong in automated testing (especially integration tests)

7. Experience with CI/CD pipelines (GitHub Actions or similar)

8. Experience managing production systems

9. Solid understanding of performance, reliability, observability

10. Cloud experience (AWS preferred; GCP/Azure acceptable)

11. Strong coding standards — Clean Code, code reviews, refactoring

Description 

About the opportunity

We are looking for an exceptional Senior Software Engineer to join our Backend team. This is a unique opportunity to join a fast-growing company where you will get to solve real customer and business problems, shape the future of a product built for Bharat and build the engineering culture of the team. You will have immense responsibility and autonomy to push the boundaries of engineering to deliver scalable and resilient systems.

As a Senior Software Engineer, you will be responsible for shipping innovative features at breakneck speed, designing the architecture, mentoring other engineers on the team and pushing for a high bar of engineering standards like code quality, automated testing, performance, CI/CD, etc. If you are someone who loves solving problems for customers, technology, the craft of software engineering, and the thrill of building startups, we would like to talk to you.

What you will be doing

• Build and ship features in our Node.js (and now migrating to TypeScript) codebase that directly impact user experience and help move the top and bottom line of the business.
• Collaborate closely with our product, design and data team to build innovative features to deliver a world class product to our customers. At company, product managers don’t “tell” what to build. In fact, we all collaborate on how to solve a problem for our customers and the business. Engineering plays a big part in it.
• Design scalable platforms that empower our product and marketing teams to rapidly experiment.
• Own the quality of our products by writing automated tests, reviewing code, making systems observable and resilient to failures.
• Drive code quality and pay down architectural debt by continuous analysis of our codebases and systems, and continuous refactoring.
• Architect our systems for faster iterations, releasability, scalability and high availability using practices like Domain Driven Design, Event Driven Architecture, Cloud Native Architecture and Observability.
• Set the engineering culture with the rest of the team by defining how we should work as a team, set standards for quality, and improve the speed of engineering execution.

The role could be ideal for you if you

• Experience of 4-8 years of working in backend engineering with at least 2 years of production experience in TypeScript, Express.js (or another popular framework like Nest.js) and MongoDB (or any popular database like MySQL, PostgreSQL, DynamoDB, etc.).
• Well versed with one or more architectures and design patterns such as MVC, Domain Driven Design, CQRS, Event Driven Architecture, Cloud Native Architecture, etc.
• Experienced in writing automated tests (especially integration tests) and Continuous Integration. At company, engineers own quality and hence, writing automated tests is crucial to the role.
• Experience with managing production infrastructure using technologies like public cloud providers (AWS, GCP, Azure, etc.). Bonus: if you have experience in using Kubernetes.
• Experience in observability techniques like code instrumentation for metrics, tracing and logging.
• Care deeply about code quality, code reviews, software architecture (think about Object Oriented Programming, Clean Code, etc.), scalability and reliability. Bonus: if you have experience in this from your past roles.
• Understand the importance of shipping fast in a startup environment and constantly try to find ingenious ways to achieve the same.
• Collaborate well with everyone on the team. We communicate a lot and don’t hesitate to get quick feedback from other members on the team sooner than later.
• Can take ownership of goals and deliver them with high accountability.

Don’t hesitate to try out new technologies. At company, nobody is limited to a role. Every engineer in our team is an expert of at least one technology but often ventures out in adjacent technologies like React.js, Flutter, Data Platforms, AWS and Kubernetes. If you are not excited by this, you will not like working at company. Bonus: if you have experience in adjacent technologies like AWS (or any public cloud provider, Github Actions (or CircleCI), Kubernetes, Infrastructure as Code (Terraform, Pulumi, etc.), etc.

Java JD

Exp: -2- 4 Years

Location: - Manyata Tech Park, Bangalore, Karnataka, India

Immediate Joiners-15 Days

Job Responsibilities

• Strong experience with Spring and Spring Boot, Spring MVC, Spring Data, Spring Security
• • Exposure working in microservices and containerization(Docker/Kubernetes)
• • Experience with Web Services (JSON, REST, JAX-RS, Spring based REST services)
• • Strong with Java and J2EE/Java EE (including servlets, JSP, JSF, JDBC)
• • Strong understanding of Java Multithreading
• • Experience working with DB like Mongo, Casandra etc.
• • Experience with at least one of the development tools like Git, Gradle, Maven, Sonar, Jenkins, Artifactory etc
• • Experience with web application servers like Tomcat, Jetty, JBoss etc
• • Experience with TDD, code testability standards, JUnit/Mockito
• • Experience with DevOps practices and CICD model of development
• • Good understanding of OOP, design patterns and industry best practices
• • Agile project experience along with working on Agile tools like JIRA
• • Strong written and verbal communication skills
• Good to have Skills:
• • Strong interpersonal skills and time management skills
• • Strong analytical and troubleshooting skills

• Strong Java programming skills
• Minimum of 5 years practical software development experience
• Robust object-oriented design pattern knowledge and implementation experience using Java;
• Python a plus
• Advanced knowledge and experience developing and working with relational databases such as
• Sybase and MySQL
• Experience with multi-tier application architecture and high performance distributed and in-
• memory caching solutions
• Strong understanding of data modeling techniques
• Strong foundation in SDLC best practices including test driven development, unit testing
• discipline, agile development, and CI/CD strategies

Roles and Responsibilities:

• Own development, design, scaling, and maintenance of application and messaging engines that power the central platform of Capillary's Cloud CRM product.

• Work on the development of AI and data science products for various use cases. Implement PoCs in Python, and Spark-Scala and productize the implementations.

• Contribute to overall design and roadmap.

• Mentor Junior team members.

Required Skills:

• Innovative and self-motivated with a passion to develop complex and scalable applications.

• 3+years of experience in software development with a strong focus on algorithms and data structures.

• Strong coding and design skills with prior experience in developing scalable & high-availability applications. Expertise in using Core Java/J2EE or Node.js

• Work experience with Relational databases and Non-Relational is required (Primarily MySQL, MongoDB, and Redis)

• Familiarity with big data platforms (like Spark-Scala) is an added plus.

• Strong Analytical and Problem Solving Skills.

• BTech from IIT or BE in computer science from a top REC/NIT.

Job Perks

• Competitive Salary as per market standards

• Flexible working hours

• Chance to work with a world class engineering team.

Why Join Us:

Be part of a fast-moving tech team building impactful, user-friendly apps with modern development practices and a collaborative work culture.

Capillary is an Equal Opportunity Employer and will not discriminate against any applicant for employment on the basis of race, age, religion, sex, veterans, individuals with disabilities, sexual orientation, or gender identity.

Disclaimer:

It has been brought to our attention that there have recently been instances of fraudulent job offers, purporting to be from Capillary Technologies. The individuals or organizations sending these false employment offers may pose as a Capillary Technologies recruiter or representative and request personal information, purchasing of equipment or funds to further the recruitment process or offer paid training. Be advised that Capillary Technologies does not extend unsolicited employment offers. Furthermore, Capillary Technologies does not charge prospective employees with fees or make requests for funding as a part of the recruitment process.

We commit to an inclusive recruitment process and equality of opportunity for all our job applicants.