Senior Backend Developer (C# and .NET)
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).
What can you look for?
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.
We are
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.
Way forward
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.

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🏢 About Wissen Technology:
Wissen Technology, part of the Wissen Group (est. 2000), is a fast-growing technology company specializing in high-end consulting across Banking, Finance, Telecom, and Healthcare domains.
✔️ Global presence – US, India, UK, Australia, Mexico & Canada
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🌐 Website: www.wissen.com
🔗 LinkedIn: https://www.linkedin.com/company/wissen-technology/
If you’re interested or have relevant candidates, please share your resume at [your email].
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While you may already know about Wissen and the company history, here is a quick rundown for you.
About Wissen Technology:
· The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015.
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Role Overview
Key Responsibilities
Engine Development: Design and implement modular, reusable Python components for index construction, rebalancing, and backtesting.
Large-Scale Simulation: Use Pandas, NumPy, and PySpark to run historical calculations across long time horizons and multiple index variants.
Workflow Integration: Integrate engines with orchestrators such as Airflow or Temporal using parameterized, config-driven execution.
Reference Data Consumption: Query and utilize pricing, security master, and corporate action data from Snowflake.
Quality & Reconciliation: Build automated test harnesses to validate outputs, compare against benchmarks, and guarantee reproducibility.
Performance Optimization: Improve runtime efficiency through vectorization, caching, and distributed computing patterns.
Cross-Team Collaboration: Partner with Business, Index Ops, and Platform teams to accelerate research-to-production onboarding.
Required Technical Capabilities
Python Expertise: Strong proficiency in Python application development with emphasis on clean architecture and maintainable design.
Data & Numerical Libraries: Deep experience with Pandas and NumPy; working knowledge of PySpark for distributed workloads.
Financial Computation: Ability to implement portfolio mathematics, weighting algorithms, and time-series transformations.
Config-Driven Systems: Experience building rule-based or metadata-driven processing frameworks.
Database Skills: Strong SQL and experience consuming structured data from Snowflake.
Testing Discipline: Expertise in unit testing, regression testing, and deterministic replay of calculations.
Orchestration Integration: Familiarity with Airflow, Temporal, or similar workflow engines.
Cloud Infrastructure: Solid understanding of AWS ecosystem services (S3, Lambda, IAM) and how they integrate with the Snowflake Data Cloud.
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Understanding of SDLC & OOPs concepts.
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Must have experience with ASP.NET with C#
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Good knowledge of SQL server / POSTGreSQL database
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Basic Knowledge of javascript, JQuery, CSS, HTML5, Bootstrap
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Ability to design Web architecture.
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Ability to bug fixing in existing projects.
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Knowledge of functions, procedure, triggers.
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Ability to write optimized sql query.
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Good knowledge of developing Desktop Application
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Knowledge of WCF, Web Services and file management.
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Knowledge of digital signature is preferred.
Roles And responsibilities-
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Should be able to work in a team environment.
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Strong in Software Development and Problem Solving Skills.
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Design, Develop and Unit Test software independently.
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Also should be able to understand the existing applications and should be in position to reengineer the codes to latest .Net technologies.
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Freshers: Should have B.Tech background and should have strong in problem solving skills.
you will be;
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* Working within a truly Agile environment, participating in daily stand-up meetings
* Collaborating with the rest of the development team and business to meet objectives
Key Skills Required;
* TypeScript * JavaScript (ES6+) * Node.js * Amazon Web Services, in particular AWS Lambda, * Experience working within an Agile environment * Excellent communication skills, with the ability to work in partnership with both business and technology teams * Proactive and truly passionate about technology * Degree level education in Computer Science (or equivalent), or similar experience * Willingness to continually learn new languages
We are looking to hire a Full-time, Remote (India) Backend engineer with a flair for writing full stack code to help create a SAAS product from the ground up in a niche industry.
This will be the v2.0 of an existing legacy platform with paying customers. This position is within the first few hires in the founding team of the revamped company.
We are on a mission to build a truly world class product and deliver at high speeds with high quality.
Read on and apply for the job if you are a doer, likes no BS, think you're competent enough to get things done, wants some quiet time every day, wants to make a difference, values work life balance and enjoy life outside work.
Experience -
At least 3 to 4 years building scalable SAAS applications in the cloud. It would be great to showcase anything progressive. Education from premier institutions, git contributions, tech blogs, volunteering, pet projects, etc.
Responsibilities -
- Architect, write, deploy and own the (SAAS) product from a technical standpoint working closely with other devs on the team
- Create and deliver the product end-to-end all the way to the user
- Write highly performant code and continuously measure performance and make the application better based on benchmarks
- Debug production issues and keep the application quality high always
- Assist with hiring more people when the team grows
- Pick up any appropriate work as in any early-stage company
General Skills Needed -
- Should be able to build and deploy multi-tenant SAAS applications end to end
- Need to have a technology-agnostic mindset. Should be able to easily pick up any new technology based on the use case.
- Should be an expert software craftsman/craftswoman. Must own the code and be proud of what you build.
- Write well thought out, well-tested code with extensive unit tests and integration tests so that the addition of future features is easy.
- Must know cloud deployment concepts and be comfortable creating and maintaining cost-effective cloud deployment strategies. AWS experience highly preferred.
- Must be able to design and architect simple, market-tested yet highly scalable solutions
- Must be able to quickly iterate and produce working software at a high speed. Must not be shy to scrap and rebuild when there is a need
- Must be appreciative of documentation and write well-documented code and technical documentation alongside
Technical Skills Needed -
- Expert level knowledge in Python and Django. We are a Python/Django/Javascript/ReactJs/AWS shop.
- Must have good knowledge/experience in creating cost-efficient and scalable cloud deployments (AWS preferred)
- Must have good knowledge of industry-standard design patterns and tools
- Must have a good understanding of various frameworks on authentication and authorization, billing and metrics
- Some experience in data analytics and reporting - creating reports based on the data collected and deliver to the frontend
- Expertise with Frameworks
- Django, or similar backend frameworks
- PostgreSQL, MySQL, any NoSQL or other database technology
Job Perks
Perks -
- Opportunity to build a SAAS product from the ground up. Lots of challenges to tackle on
- Work remotely from anywhere within India
- Emphasis on work-life balance and professional development
- Flexible work hours and a lot of autonomy
- Work with a very informal team collaborating over slack. No meaningless meetings. Focus on getting things done and not hours put in
- Opportunity to grow the team with the company
- Market salary and a yearly bonus outside the salary based on company + individual performance
- Generous PTO plan

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Experience: 3-7 Years
Responsibilities:
Work with product team / business / architects to understand the requirement
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Knowledge of frameworks such as Express, KOA is desirable.
Knowledge and understanding of async non-blocking architecture
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Knowledge of Data Structures and Algorithms, Node Global variables and In built libraries.
Experience in building high-volume transactional customer facing systems desirable
Understanding the nature of asynchronous programming and its quirks and workarounds
Knowledge of packages BABEL, Webpack
Basic understanding of front-end technologies, such as HTML5, and CSS3
Writing reusable, testable, and efficient code
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- You’re proficient in NodeJS, TypeScript, MySQL, and MongoDB
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- Well versed with the fundamentals of computer science and distributed systems
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- Startup experience, preferably a tech startup
- Open Source contributor
- You have experience with other programming languages -- e.g. Python, Ruby, PHP, Go, C, etc.
- Passionate about/experienced with open source and developer tools
- You have a bachelor's degree in Computer Science, Engineering or related field, or equivalent training, fellowship, or work experience
Job description:
Passion for building and delivering great software with a strong sense of ownership.
- Minimum of two years of experience in building web applications using ASP.NET MVC and .NET platform in general.
- Should have strong UI development skills using HTML, CSS/JavaScript frameworks.-
Good understanding of IIS configuration
- Strong experience with Build and Release, Agile processes and Estimation/Planning-
Exposure to New Relic or similar tools to optimize web application performance
Strong expertise in SQL programming, with experience of writing & optimizing queries that access/process millions of records-
Experience of architecting and designing web applications and servicesTeam TA,LeadSquared (ref:hirist.com)








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