Technical Architect/CTO

Summary:

We are seeking a highly skilled Python Backend Developer with proven expertise in FastAPI to join our team as a full-time contractor for 12 months. The ideal candidate will have 5+ years of experience in backend development, a strong understanding of API design, and the ability to deliver scalable, secure solutions. Knowledge of front-end technologies is an added advantage. Immediate joiners are preferred. This role requires full-time commitment—please apply only if you are not engaged in other projects.

Job Type:

Full-Time Contractor (12 months)

Location:

Remote

Experience:

3+ years in backend development

Key Responsibilities:

• Design, develop, and maintain robust backend services using Python and FastAPI.
•  Implement and manage Prisma ORM for database operations.
• Build scalable APIs and integrate with SQL databases and third-party services.
• Deploy and manage backend services using Azure Function Apps and Microsoft Azure Cloud.
• Collaborate with front-end developers and other team members to deliver high-quality web applications.
• Ensure application performance, security, and reliability.
• Participate in code reviews, testing, and deployment processes.

Required Skills:

• Expertise in Python backend development with strong experience in FastAPI.
• Solid understanding of RESTful API design and implementation.
• Proficiency in SQL databases and ORM tools (preferably Prisma)
• Hands-on experience with Microsoft Azure Cloud and Azure Function Apps.
• Familiarity with CI/CD pipelines and containerization (Docker).
• Knowledge of cloud architecture best practices.

Added Advantage:

• Front-end development knowledge (React, Angular, or similar frameworks).
• Exposure to AWS/GCP cloud platforms.
• Experience with NoSQL databases.

Eligibility:

• Minimum 3 years of professional experience in backend development.
• Available for full-time engagement.
• Please excuse if you are currently engaged in other projects—we require dedicated availability.

Job Details

- Job Title: Senior Backend Engineer

- Industry: SAAS

- Function – Information Technology

- Experience Required: 5-8 years

- Working Days: 6 days a week, (5 days-in-office, Saturdays WFH)

- Employment Type: Full Time

- Job Location: Bangalore

- CTC Range: Best in Industry

Preferred Skills: AWS, NodeJS, RESTful APIs, NoSQL

Criteria

· Minimum 5+ years in backend engineering with strong system design expertise

· Experience building scalable systems from scratch

· Expert-level proficiency in Node.js

· Deep understanding of distributed systems

· Strong NoSQL design skills

· Hands-on AWS cloud experience

· Proven leadership and mentoring capability

· Preferred candidates from SAAS/Software/IT Services based startups or scaleup companies

Job Description

The Role:

What You’ll Build:

1. System Architecture & Design

● Architect highly scalable backend systems from the ground up

● Define technology choices: frameworks, databases, queues, caching layers

● Evaluate microservices vs monoliths based on product stage

● Design REST, GraphQL, and real-time WebSocket APIs

● Build event-driven systems for asynchronous processing

● Architect multi-tenant systems with strict data isolation

● Maintain architectural documentation and technical specs

2. Core Backend Services

● Build high-performance APIs for 3D content, XR experiences, analytics, and user interactions

● Create 3D asset processing pipelines for uploads, conversions, and optimization

● Develop distributed job workers for CPU/GPU-intensive tasks

● Build authentication/authorization systems (RBAC)

● Implement billing, subscription, and usage metering

● Build secure webhook systems and third-party integration APIs

● Create real-time collaboration features via WebSockets/SSE

3. Data Architecture & Databases

● Design scalable schemas for 3D metadata, XR sessions, and analytics

● Model complex product catalogs with variants and hierarchies

● Implement Redis-based caching strategies

● Build search and indexing systems (Elasticsearch/Algolia)

● Architect ETL pipelines and data warehouses

● Implement sharding, partitioning, and replication strategies

● Design backup, restore, and disaster recovery workflows

4. Scalability & Performance

● Build systems designed for 10x–100x traffic growth

● Implement load balancing, autoscaling, and distributed processing

● Optimize API response times and database performance

● Implement global CDN delivery for heavy 3D assets

● Build rate limiting, throttling, and backpressure mechanisms

● Optimize storage and retrieval of large 3D files

● Profile and improve CPU, memory, and network performance

5. Infrastructure & DevOps

● Architect AWS infrastructure (EC2, S3, Lambda, RDS, ElastiCache)

● Build CI/CD pipelines for automated deployments and rollbacks

● Use IaC tools (Terraform/CloudFormation) for infra provisioning

● Set up monitoring, logging, and alerting systems

● Use Docker + Kubernetes for container orchestration

● Implement security best practices for data, networks, and secrets

● Define disaster recovery and business continuity plans

6. Integration & APIs

● Build integrations with Shopify, WooCommerce, Magento

● Design webhook systems for real-time events

● Build SDKs, client libraries, and developer tools

● Integrate payment gateways (Stripe, Razorpay)

● Implement SSO and OAuth for enterprise customers

● Define API versioning and lifecycle/deprecation strategies

7. Data Processing & Analytics

● Build analytics pipelines for engagement, conversions, and XR performance

● Process high-volume event streams at scale

● Build data warehouses for BI and reporting

● Develop real-time dashboards and insights systems

● Implement analytics export pipelines and platform integrations

● Enable A/B testing and experimentation frameworks

● Build personalization and recommendation systems

Technical Stack:

1. Backend Languages & Frameworks 

●  Primary: Node.js (Express, NestJS), Python (FastAPI, Django)

●  Secondary: Go, Java/Kotlin (Spring)

●  APIs: REST, GraphQL, gRPC

2. Databases & Storage

● SQL: PostgreSQL, MySQL

● NoSQL: MongoDB, DynamoDB

● Caching: Redis, Memcached

● Search: Elasticsearch, Algolia

● Storage/CDN: AWS S3, CloudFront

● Queues: Kafka, RabbitMQ, AWS SQS

3. Cloud & Infrastructure: 

● Cloud: AWS (primary), GCP/Azure (nice to have)

● Compute: EC2, Lambda, ECS, EKS

● Infrastructure: Terraform, CloudFormation

● CI/CD: GitHub Actions, Jenkins, CircleCI

● Containers: Docker, Kubernetes

4. Monitoring & Operations 

● Monitoring: Datadog, New Relic, CloudWatch

● Logging: ELK Stack, CloudWatch Logs

● Error Tracking: Sentry, Rollbar

● APM tools

5. Security & Auth

● Auth: JWT, OAuth 2.0, SAML

● Secrets: AWS Secrets Manager, Vault

● Security: Encryption (at rest/in transit), TLS/SSL, IAM

What We’re Looking For:

1. Must-Haves

● 5+ years in backend engineering with strong system design expertise

● Experience building scalable systems from scratch

● Expert-level proficiency in at least one backend stack (Node, Python, Go, Java)

● Deep understanding of distributed systems and microservices

● Strong SQL/NoSQL design skills with performance optimization

● Hands-on AWS cloud experience

● Ability to write high-quality production code daily

● Experience building and scaling RESTful APIs

● Strong understanding of caching, sharding, horizontal scaling

● Solid security and best-practice implementation experience

● Proven leadership and mentoring capability

2. Highly Desirable

● Experience with large file processing (3D, video, images)

● Background in SaaS, multi-tenancy, or e-commerce

● Experience with real-time systems (WebSockets, streams)

● Knowledge of ML/AI infrastructure

● Experience with HA systems, DR planning

● Familiarity with GraphQL, gRPC, event-driven systems

● DevOps/infrastructure engineering background

● Experience with XR/AR/VR backend systems

● Open-source contributions or technical writing

● Prior senior technical leadership experience

Technical Challenges You’ll Solve:

● Designing large-scale 3D asset processing pipelines

● Serving XR content globally with ultra-low latency

● Scaling from thousands to millions of daily requests

● Efficiently handling CPU/GPU-heavy workloads

● Architecting multi-tenancy with complete data isolation

● Managing billions of analytics events at scale

● Building future-proof APIs with backward compatibility

Why company:

● Architectural Ownership: Build foundational systems from scratch

● Deep Technical Work: Solve distributed systems and scaling challenges

● Hands-On Impact: Design and code mission-critical infrastructure

● Diverse Problems: APIs, infra, data, ML, XR, asset processing

● Massive Scale Opportunity: Build systems for exponential growth

● Modern Stack and best practices

● Product Impact: Your architecture directly powers millions of users

● Leadership Opportunity: Shape engineering culture and direction

● Learning Environment: Stay at the forefront of backend engineering

● Backed by AWS, Microsoft, Google

Location & Work Culture:

● Location: Bengaluru

● Schedule: 6 days a week, (5 days-in-office, Saturdays WFH)

● Culture: Builder mindset, strong ownership, technical excellence

● Team: Small, highly skilled backend and infra team

● Resources: AWS credits, latest tooling, learning budget

Backend Architect

Experience - 12+ yrs

About Wekan Enterprise Solutions

Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.

Job Description

We are looking for passionate architects eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments leading technical teams, designing system architecture and reviewing peer code. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?

You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects.

Location - Chennai or Bangalore

●     Relevant experience of 12+ years building high-performance applications with at least 3+ years as an architect.

●     Good problem solving skills

●     Strong mentoring capabilities

●     Good understanding of software development life cycle

●     Strong experience in system design and architecture

●     Strong focus on quality of work delivered

●     Excellent verbal and written communication skills

Required Technical Skills

●     Extensive hands-on experience building high-performance applications primarily using Node.Js ,(Javascript/Typescript) along with Nest.Js, Express.JS, MongoDB.

●     Hands-on experience with other languages such as .NET/C# or Java or Golang or Python.

●     Strong experience with appropriate framework(s).

●     Well versed in monolithic and microservices architecture and System design experience.

●     Hands-on experience with data modeling on MongoDB (NoSQL) and Relational or NoSQL databases

●     Experience working with 3rd party integrations ranging from authentication, cloud services, etc.

●     Hands-on experience with Kafka or RabbitMQ.

●     Hands on experience with CI/CD pipelines and atleast 1 cloud provider - AWS / GCP / Azure

●     Strong experience writing and maintaining clear documentation

Good to have skills:

●     Experience working with frontend technologies - React.Js or Vue.Js or Angular.

●     Extensive experience consulting with customers directly for defining architecture or system design.

●     Technical certifications in AWS / Azure / GCP / MongoDB or other relevant technologies

Job Title: Software Developer (Contractor)

Location: Remote, Up to 1-year contract

Compensation: Hourly

About Us: CipherSonic Labs is a cutting-edge technology company specializing in data security and privacy solutions for enterprises processing sensitive data in the cloud. We develop high-performance cryptographic software and hardware acceleration techniques to enable secure computing. Our team is looking for talented individuals to contribute to innovative projects in secure computing and high-performance software development.

Job Description: We are seeking a Software Developer to assist in the development of high-performance software solutions. This role will involve working on low-level programming, optimizing cryptographic algorithms, and improving performance for security-critical applications. The ideal candidate will have a passion for systems programming, algorithm optimization, and working in a high-performance computing environment.

Key Responsibilities:

·     Develop and optimize software using C/C++ for high-performance computing applications.

·     Work on cryptographic algorithm implementations and performance tuning.

·     Optimize memory management, threading, and parallel computing techniques.

·     Debug, profile, and test software for performance and reliability.

·     Write clean, efficient, and well-documented code.

Qualifications:

·     Completed a B.S. or higher degree in Computer Science, Computer Engineering.

·     Strong programming skills in C and C++.

·     Familiarity with Linux-based development environments.

·     Basic understanding of cryptographic algorithms and security principles is a plus.

·     Experience with AWS Lambda, EC2, S3, DynamoDB, API Gateway, Containerization (like Docker, Kubernetes) is a plus.

·     Knowledge of other programming languages such as Python, Rust, or Go is a plus.

·     Strong problem-solving skills and attention to detail.

·     Ability to work independently and collaboratively in a fast-paced startup environment.

What You’ll Gain:

·     Hands-on experience in systems programming, cryptography, and high-performance computing.

·     Opportunities to work on real-world security and privacy-focused projects.

·     Mentorship from experienced software engineers and researchers.

·     Exposure to cutting-edge cryptographic acceleration and secure computing techniques.

·     Potential for future full-time employment based on performance.

• 2+ years of experience in Python, Django, Mongo, Express, MySQL, etc
• Have built applications capable of serving high volume with low latency in production
• Following practices of agile development with continuous integration/deployment
• Experience in deploying applications in AWS cloud
• Knowledge in building applications for Fintech/payments domain is a bonus
• Bachelor’s or Master’s degree in CS or equivalent from a reputed institution
• Self-starter, hustler, and a desire to achieve greatness is a MUST
• Immediate joining preferred
• You will have the flexibility to design the application and systems from the ground up.
• Your primary responsibility is to implement business logic in the backend and create awesome restful APIs for seamless integration with our mobile front end.

EXPERIENCE: 7 to 9 years in Java 2 Enterprise server side development. Must have applied knowledge of design patterns needed for building REST APIs and services for performance and scale.

SKILLS:

- Problem Solving and application of Object Oriented principles to development

- REST API development using Java, JAX-RPC,

- Server side development using Java, Spring Boot, Node.js

- Concurrent programming with Java

- Database programming in SQL with Oracle, MySQL or other RDBMs.

- Deployment to AWS and Kubernetes and building with Maven

- Affinity towards server side development

- Ability to understand existing code and re-engineer/re-factor/redesign.

- Written and spoken English communication and articulation.

NICE TO HAVE:

 - Working knowledge of GO Lang and Python scripting

- AWS Certifications

- Working knowledge of Elastic Search based persistence and search

- Secure coding practices

EDUCATION: Bachelor or Master's degree in Computer Science, Software Engineering or Information Technology or related disciplines.

About Toyota Connected

If you want to change the way the world works, transform the automotive industry and positively impact others on a global scale, then Toyota Connected is the right place for you! Within our collaborative, fast-paced environment we focus on continual improvement and work in a highly iterative way to deliver exceptional value in the form of connected products and services that wow and delight our customers and the world around us.

About the Team

Toyota Connected India is hiring talented engineers at Chennai to use Deep Learning, Computer vision, Big data, high performance cloud-based services and other cutting-edge technologies to transform the customer experience with their vehicle.  Come help us re-imagine what mobility can be today and for years to come!

Job Description

Toyota Connected is looking for a Backend Developer who will architect, design, develop and participate in testing and documentation of large-scale, distributed software applications, systems and services. The Labs team is focused on creating products and services for next generation Connected vehicle systems and the team members are required to be creative in solving problems, excited to work in new technology areas and be ready to wear multiple hats to get things done. This is a highly-energized, fast-paced, innovative and collaborative startup environment; therefore, it is essential that not only the skillset, but also the personality matches such an environment.

 You are a successful candidate if you:

• Are smart and can demonstrate it.
• Have 3+ years of experience as a developer for web scale products and services
• Have strong experience in Java or Golang (minimum 1 year) and implemented key aspects of an end-to-end solution
• Have expertise in implementing microservices (using tools and technologies for messaging, RPC, containerization, etc)
• Have expertise in design and development using DB (RDBMS, NoSQL) and caching (e.g Redis) solutions, especially in microservices environment
• Have experience with Containerization (Docker, Kubernetes, etc)
• Have Public cloud technology experience in production (Azure, AWS, or Equivalent)
• Have the ability and willingness to manage other developers including mentoring, performance reviews, etc
• Have solved non-functional aspects of like scalability, security, reliability with cutting edge if not bleeding edge technology
• Are good about creating unit tests, performing code reviews, optimizing performance and ensuring standards for maintainability
• You can manage ambiguity and are comfortable being set loose without a lot of direction
• You are confident in expressing your point of view from a position of knowledge and experience. You are also receptive to feedback and open to revising your plans when appropriate
• We think the knowledge acquired earning a degree in Computer Science would be of great value in this position, but if you're smart and have the experience that backs up your abilities, for us, talent trumps degree every time

 It will be Nice if you have:

• Some front-end development experience
• Hands-on experience delivering products or solutions that utilized Machine learning, NLP or other forms of AI - with tools such as Scikit-learn, Tensor flow, Keras, Theano / Spacy, NLTK, etc

What is in it for you? 

• Top of the line compensation!
• You'll be treated like the professional we know you are and left to manage      your own time
• Yearly gym membership reimbursement & Free catered lunches.
• No dress code! We trust you are responsible enough to choose what’s appropriate to wear
• Opportunity to build products that improves the safety and convenience of millions of customers.

                 Cool office space and awesome benefits

 Our Core Values

• Passionate: We are here to build something great, not just for the money. We      are always looking to improve the experience of our millions of customers
• Innovative: We experiment with ideas to get to the best solution. Any constraint is a challenge, and we love looking for creative ways to solve them.
• Empathetic: We begin making decisions by looking at the world from the perspective of our customers, teammates, and partners.
• Collaborative: When it comes to people, we think the whole is greater than its parts and that everyone has a role to play in the success!
• Effective: We consistently go beyond, being smart and proactive, to make things the right things happen, not waiting to be told.