MEAN Backend / Full Stack Developer

Role overview:

We are hiring one Senior Backend Engineer to take end-to-end ownership of our serverless backend — a hands-on IC role for someone both technically excellent and comfortable being one of the few people the entire backend depends on. You'll own the services across several Node.js and Python repositories, work directly with the founders and product team, and set the technical bar for reliability, security, and performance.

Key responsibilities

• Design, build, and operate AWS Lambda services across our HCM/workforce, project-management, commercial/revenue, permissions, and document domains — each comprising dozens of functions.
• Own the multi-tenant PostgreSQL data layer — schema design, query performance, and the permission/relationship model — end to end.
• Maintain and evolve the request path — API Gateway → custom Lambda authorizer → VPC-bound Lambda → private databases — including the runtime IAM/credential model that scopes every request.
• Safeguard tenant isolation and security across a per-company Cognito authentication model.
• Build and maintain integrations with external construction data environments (Asite, Autodesk Construction Cloud), including large-scale document synchronization.
• Optimize performance and reliability to keep latency-sensitive endpoints well within platform limits under growing load.
• Raise the engineering bar — testing, observability, CI/CD, and modernization of legacy components.
• Debug and resolve production incidents to root cause, and put safeguards in place so they don't recur.
• Document decisions and designs and collaborate with the frontend (Angular) and product teams.

Challenges you'll solve.

We prefer to be candid — these are the problems that make this role genuinely interesting:

Latency under a hard ceiling

API Gateway terminates any request beyond ~29 seconds regardless of the Lambda's own timeout — yet much of our value comes from heavy cross-project reporting. You'll keep p95 latency within budget through set-based SQL, pagination, streaming, and asynchronous processing.

Least-privilege, per-request security

A shared custom authorizer mints short-lived, request-scoped credentials via sts:AssumeRole under a strict 2,048-character inline session-policy limit. You'll design permission models that stay within that budget and reason about IAM precisely.

Graph-shaped data, relational store

The permission and relationship model is inherently graph-like, but lives in PostgreSQL — you'll model it with recursive queries, careful indexing, and set-based traversal rather than reaching for a separate graph engine.

Watertight multi-tenancy

One Cognito pool per company and tenant-scoped access throughout — isolation is a first-order concern.

VPC-bound serverless

Lambdas run inside a VPC to reach private databases; you'll manage cold starts, connection lifecycles, and pool limits.

Resilient external integrations

Syncing large document sets from third-party APIs (including SOAP/XML) demands backpressure, deduplication, retries, and graceful partial-failure handling.

Compute-heavy workloads

Server-side PDF generation, image processing, and multi-currency handling within Lambda's memory and time constraints.

The stack.

Runtime — Node.js, Python, AWS Lambda

AWS services — -1 API Gateway, Lambda, Cognito, STS / IAM, Secrets Manager, S3 CloudWatch, VPC, EC2

Infrastructure & CI/CD- AWS SAM, CodePipeline → CodeBuild Shared Data —PostgreSQL

Qualifications.

• 5+ years building and operating production backend systems.
• Deep expertise in Node.js and JavaScript — the asynchronous model, event loop, and memory behavior — plus solid working proficiency in Python and its production behavior.
• Strong hands-on AWS experience, ideally serverless (Lambda, API Gateway, IAM/STS, VPC, Secrets Manager, CloudWatch) — able to reason about IAM policies, not just apply them.
• Advanced SQL and relational data modeling — set-based query design and a working understanding of why N+1 patterns cause production issues.
• Proven production-debugging ability — root-cause analysis in distributed systems from logs and first principles.
• Strong ownership, sound judgment, and clear written communication — able to make good decisions with incomplete information and explain trade-offs to non-engineers.

Interview Process:

Introductory call-Mutual fit and role overview.

Technical deep-dive- A walkthrough of a challenging production problem you have owned.

Practical exercise -A realistic backend task, or a walkthrough of your own representative code.

System design- Collaborative design on a real scenario.

Final conversation- Values, ownership, compensation, and offer.

Job Description: Senior Python Developer (Document Automation)

Experience: 5+ Years

Location: Pune (Work from Office)

Employment Type: Contract (6 Months + Renewable)

Compensation: Market Standards / Open

Professional Summary

We are looking for a Senior Python Developer with 5+ years of experience for a contract-based role in Pune. The ideal candidate will have deep expertise in backend systems and specialized experience in document generation and manipulation using Python libraries.

Key Responsibilities

• Develop and maintain backend services using Python.
• Implement automated document generation workflows (DOCX, PDF, etc.).
• Design and optimize data extraction and document manipulation modules.
• Ensure high performance and responsiveness of backend applications.
• Collaborate with the team to define and implement API integrations.

Technical Requirements

• Minimum 5 years of professional experience in Python development.
• Hands-on experience with Python-docx for creating and updating .docx files.
• Proficiency in document processing libraries (e.g., PyPDF2, ReportLab, or Pandas for data export).
• Strong knowledge of Python web frameworks (Django, Flask, or FastAPI).
• Experience with XML and template-based document generation.
• Solid understanding of SQL/NoSQL databases.
• Experience with version control (Git) and CI/CD pipelines.

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.

Responsibilities

• Take product ideas from ideation to implementation
• Design and develop backend services that expand the capabilities of the product
• Write high quality, structured application/interface code and tests
• Lead engineering discussions to ensure the best practices, maintainability and security of the application
• Participate in design and code reviews

We are looking for

• 3+ years of experience building quality applications
• Proficient in Node JS, NoSQL databases
• Strong working knowledge of Web technologies and APIs
• Passion for best design and coding practices and a desire to develop new bold ideas
• Experience in planning, designing architecture and working with teams
• Experience with SaaS product or an early stage startup is a plus

Hybrid / On-site (Bangalore)

What is the role?

Xoxoday is looking for a candidate who has a strong background in the design and implementation of scalable architecture and a good understanding of Algorithms, Data structures, and design patterns. Candidates must be ready to learn new tools, languages, and technologies. We are offering hybrid / remote options as well.

Basic Qualifications:

• At least 4 -7 years of experience as a software developer.
• At Least 3 years of experience in .net core C#, AWS stack, MS SQL Server, MVC, NodeJS experience is a plus
• Strong working knowledge in distributed event-driven messaging architecture/platform
• Strong knowledge in data access layer especially ability to work with stored procedure
• Established and stimulated software development standards and processes along with best practices for delivery of scalable and high-quality software.
• Production experience with AWS stack
• Fluent English speaker

Preferred Qualifications:l

• Experience working with OOP languages.
• Experience designing and developing Microservices and SOA.
• Experience working with AWS Kinesis, Lambda, SQS, S3, ElastiCache, ElasticSearch, Kubernetes, EventBridge, RDS, CloudWatch, APIGateway
• Experience designing and building high-performance scalable web services.
• Experience in REST API design and implementation.
• Experience in unit testing, test automation, and continuous delivery.
• Experience with stream-processing and message-broker software.

Nice to have:

• Experience working with distributed teams.
• Ability to work independently and as part of a team.
• Ability to work quickly toward tight deadlines, and make smart tradeoffs between speed, accuracy, and maintainability.
• Bachelor's or Master's degree in computer science (or equivalent professional experience).

A wholesome opportunity in a fast-paced environment that will enable you to juggle between concepts, yet maintain the quality of content, interact, and share your ideas and have loads of learning while at work. Work with a team of highly talented young professionals and enjoy the benefits of being at Xoxoday.

Xoxoday is a rapidly growing fintech SaaS firm that propels business growth while focusing on human motivation. Backed by Giift and Apis Partners Growth Fund II, Xoxoday offers a suite of three products - Plum, Empuls, and Compass. Xoxoday works with more than 2000 clients across 10+ countries and over 2.5 million users. Headquartered in Bengaluru, Xoxoday is a 300+ strong team with four global offices in San Francisco, Dublin, Singapore, New Delhi.

We look forward to connecting with you. As you may take time to review this opportunity, we will wait for a reasonable time of around 3-5 days before we screen the collected applications and start lining up job discussions with the hiring manager. We however assure you that we will attempt to maintain a reasonable time window for successfully closing this requirement. The candidates will be kept informed and updated on the feedback and application status.

A Node.js job description typically outlines the responsibilities, qualifications, and expectations for a Node.js developer or related role. Node.js is a popular runtime environment for executing JavaScript on the server-side, making it an essential technology for web and application development. Below is a sample Node.js job description:

Job Title: Node.js Developer

Job Description:

Position Overview:

We are seeking a skilled Node.js developer to join our dynamic team. As a Node.js developer, you will be responsible for designing, implementing, and maintaining server-side applications using Node.js. Your primary focus will be on developing scalable, efficient, and high-performance applications while working closely with our front-end and back-end developers.

Responsibilities:

1. Develop server-side applications using Node.js and Express.js or other Node.js frameworks.
2. Collaborate with front-end developers to integrate user-facing elements with server-side logic.
3. Build and optimize APIs for mobile and web applications.
4. Implement security and data protection measures.
5. Troubleshoot and resolve software defects and performance issues.
6. Write clean, maintainable, and testable code.
7. Deploy applications on cloud platforms like AWS, Azure, or Heroku.
8. Stay up-to-date with Node.js and related technologies, and incorporate best practices and emerging trends into development processes.
9. Perform code reviews to ensure code quality and adherence to coding standards.
10. Participate in the development of technical documentation.
11. Collaborate with cross-functional teams to develop and maintain software applications.
12. Support and maintain the application infrastructure, including monitoring, scaling, and performance optimization.

Qualifications:

1. Proven experience as a Node.js developer or similar role.
2. Strong proficiency in JavaScript and its core concepts.
3. Experience with Node.js and server-side frameworks like Express.js.
4. Familiarity with front-end technologies such as HTML, CSS, and JavaScript.
5. Understanding of asynchronous programming and event-driven architecture.
6. Knowledge of database systems (e.g., MongoDB, PostgreSQL, MySQL).
7. Experience with version control systems (e.g., Git).
8. Basic knowledge of DevOps and cloud platforms.
9. Good communication and collaboration skills.
10. Problem-solving abilities and attention to detail.
11. Ability to work both independently and as part of a team.
12. Bachelor's degree in Computer Science, Information Technology, or a related field (or equivalent work experience).

Additional Skills (Preferred but not required):

• Experience with microservices architecture.
• Knowledge of containerization technologies like Docker and Kubernetes.
• Familiarity with test-driven development (TDD).
• Understanding of authentication and authorization mechanisms.
• Experience with continuous integration and continuous deployment (CI/CD) pipelines.

Company Culture and Benefits:

• We offer a collaborative and innovative work environment.
• Competitive salary and benefits package.
• Opportunities for professional growth and development.
• Flexible work arrangements and remote work options.

Roles and Responsibility: 

∙ Develop functional and fast-responsive web applications, using markup languages. ∙ Maintain websites. 

∙ Elaborate mobile-based and web-based features. 

∙ Troubleshoot apps for bugs. 

∙ Fix bugs if necessary and improve usability. 

∙ Improve apps for maximum speed. 

∙ Troubleshoot UI and improve its performance accordingly. 

∙ Employ the latest technology in order to re-built legacy apps. 

∙ Integrate UI elements with server-side ones. 

∙ Detect and fulfill front-end and back-end requirements. 

∙ Perform training and support activities. 

∙ Develop reusable code. 

∙ Write comprehensive manuals, guides, and documents. 

∙ Compile prototype and quality mockups. 

∙ Make sure that high-quality graphic standards are met.

 2+ years of .NET Development experience

- Exceptional skills Experience with .NET,  technologies (WPF, Web Forms, .NET Core). Also skilled in MS SQL and PostgreSQL, Bootstrap and DevOps.

- Experience with DevExpress, Elasticsearch.Net, VS Studio is preferred SolarSearch

- Great business process understanding and written and verbal communication skills

- GitHub and Git experience.