.NET Developer (Agile/SCRUM)

Role & Responsibilities

Responsibilities

• Business: Immerse in operations until you think like an insider.

Rapidly acquire domain expertise through direct observation, translate between business and engineering seamlessly, and mentor engineers in your area on immersion. Influence senior stakeholders effectively, manage complex stakeholder landscapes with competing agendas, and build trust rapidly with new stakeholders.

• Delivery: Lead rapid delivery initiatives across teams in your area, coach on prototype-first approaches, and establish trust through consistent fast delivery. Build complete applications rapidly across any technology stack, select the right tools for each problem, and define clear criteria for prototype-to-production transitions.

• Generative AI: Architect RAG systems for complex use cases across teams, implement advanced techniques (hybrid search, reranking, query expansion), mentor engineers on RAG best practices, and establish RAG standards. Lead evaluation strategy across teams, establishing annotation guidelines, training human-calibrated LLM judges, and building evaluation pipelines that connect tracing to datasets to experiments.

• People: Build high-performing teams across your area, navigate complex interpersonal dynamics, foster psychological safety, and create environments where diverse perspectives are valued. Influence through communication at all levels — from frontline to executive. Handle difficult conversations skilfully and train engineers in your area on effective communication.

• AI-Augmented Development: Optimise AI tool usage across teams in your area, train engineers on AI-augmented and agentic engineering workflows, evaluate new AI development tools, and establish practices that balance AI speed with verification rigour.

• Scale: Design complex multi-component systems end-to-end, evaluate architectural options for large initiatives across teams, guide technical decisions for your area, and mentor engineers on architecture. Create debt reduction strategies across teams, influence roadmap decisions to include debt work, and teach engineers when to accept debt for speed versus when to invest in quality.

• Documentation: Define documentation standards across teams in your area, create documentation systems and templates, train engineers on spec-driven development, and ensure documentation quality across projects. Lead pattern generalization initiatives, defining criteria for when to generalize versus keep custom.

• Reliability: Define reliability standards across teams in your area, drive post-incident improvements systematically, design capacity planning processes, andmentor engineers on SRE practices.

Ideal Candidate

• Strong Staff Software Engineer / FDE profile (full-stack + production GenAI, multi-team technical leadership)
• Mandatory (Experience 1) – Must have 7+ years of relevant professional software engineering experience, with demonstrated full-stack delivery across backend and frontend.
• Mandatory (Experience 2) – Must have deep production experience with Python AND JavaScript/TypeScript, working comfortably across the full stack.
• Mandatory (Experience 3) – Must have 2+ years of experience in generative AI applications developement — LLM integrations, vector databases, RAG systems, and evaluation pipelines
• Mandatory (Experience 4) – Must have strong experience with modern frontend frameworks (Next.js / React) and backend API development.
• Mandatory (Experience 5) – Must have extensive experience with cloud platforms (AWS preferred; Azure/GCP valued), including infrastructure-as-code (CloudFormation / Terraform).
• Mandatory (Experience 6) – Must have working knowledge of multiple database paradigms — relational (PostgreSQL), document, and key-value (Redis) — with ability to select the right storage per problem.
• Mandatory (Experience 7) – Must have strong experience with CI/CD pipelines (e.g. GitHub Actions), containerization, and production deployment strategies.
• Mandatory (Experience 8) – Must have demonstrable fluency with AI coding tools (Claude Code, Cursor, GitHub Copilot, or similar) and proven ability to design agentic engineering workflows and train teams on them
• Preferred (Experience) – Advanced RAG techniques — hybrid search, reranking, query expansion — and establishing RAG standards across teams

Responsibilities:

Develop and maintain front-end applications using Razor View (MVC) in C#, JavaScript, jQuery, and React / Angular.

Design and implement robust backend services using C# focusing on Rest APIs and integrating third-party APIs.

Work with databases like Microsoft SQL, with a focus on gradually adopting NoSQL solutions.

Create and maintain reporting solutions using SSRS, Crystal Reports, and Power BI.

Design and manage ETL processes and data warehousing solutions using SSIS and SSAS.

Collaborate with cloud infrastructure teams to deploy and maintain solutions on Azure, AWS, and Private Cloud environments.

Ensure code quality and performance optimization through regular reviews and updates.

Work in an Agile environment, actively participating in sprints, code reviews, and team meetings.

Ideal Candidate

Proficiency in front-end technologies such as Razor View (MVC), JavaScript, jQuery, and React / Angular.

Strong backend development experience in C# using the Design First and Code First approaches.

Experience with RESTful API development and integration of third-party APIs.

Familiarity with Microsoft SQL and NoSQL databases.

Hands-on experience with reporting tools like SSRS, Crystal Reports, and Power BI.

Knowledge of ETL and data warehousing tools, particularly SSIS and SSAS.

Experience with cloud platforms like Azure, AWS, and Private Cloud.

Solid understanding of software development principles and practices.

Experience with Power BI or other BI tools for data visualization.

Knowledge of Python, Spark, or Databricks for advanced data processing

• Design and Develop Libraries for React Native for Windows 10
• Strong analytical skills - ability to turn business requirements into technical concepts and code
• Should have strong DotNET knowledge with additional expertise on Interface, enhancement
• Working with a ticket tool like Jira
• Experience with SCRUM/Agile Development
• Experience with SAP Mobile Platform, SAP Gateway, WPM, MVVM is a plus
• Experience with Windows 10 SDK is must

Full-stack developer  - Remote position

Are you...

• Interested in working at a successful, well-funded start-up where every team member can make a huge contribution?
• Keen to make software that people will use every single day to make their lives easier?
• Excited to work on greenfield projects with responsibility and independence?
• Ready to develop and use your skills across our frontend, backend and mobile offerings?
• Meticulous about quality, and gifted with a strong desire to write beautiful code?

About the company

KeyNest solves the key exchange problem for Airbnb users. Our worldwide network of over 4,000 shops store keys so that Airbnb guests / cleaners / contractors can pick them up whenever is convenient for them. As a global partner of Airbnb we’ve checked-in over 2 million guests.

Why we need you

As the entire Airbnb ecosystem increasingly relies on KeyNest, our customers expect us to integrate additional features without reducing the ease of use that our customers love. This is why we continue to invest in beautiful, intuitive user interfaces that integrate with every tool and are used by our customers, their guests and staff, as well as our own staff.

Our product team is lead by one of the founders and complete with a director of engineering, product manager, UX designer, one mobile developer and one senior full-stack developer who will be mentoring you. We want to work with a developer who cares about the way their code impacts the people who use it.

With a genuine passion for high quality work, attention to detail and readiness to own your own projects, you will be looking for a new and exciting challenge which allows you to use your experience to drive change and maintain the high standards of our organisation.

Our Tech Stack

• C# MVC modern tech stack
• Front end web in TypeScript & Angular or Node & React
• Test Driven Development (TDD) and follow SOLID design principles.
• EF 6.0
• SQL Server 2017
• Agile experience (Scrum, Kanban)
• TFS
• Cloud hosted in Azure with micro-services architecture

Your qualities

• 2-4 years experience in C#
• Front-end web experience in Angular
• Track record of building great products
• Excited about understanding the real problems working people come up against and fixing them with technology
• You’ll love the idea of being a big part of a small team: if you come up with a great idea, you can take it all the way to production
• Motivation and ambition to succeed in a fast-paced environment
• Not afraid to take on responsibilities

What we offer

• Crucial role in a funded, dynamic & fast-growing start-up shaking up the sharing economy
• Competitive salary based on relevant experience
• Flexible working for our most committed staff
• Unparalleled opportunities to develop your career as the company develops rapidly

If you want to join the KeyNest team, please get in touch – we look forward to meeting you.

We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, colour, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

• Previous working experience as a MERN/MEAN  Stack Developer for 1 year (Minimum).
• In depth knowledge of NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 2+ versions or React
• Experience creating front end applications using HTML5, Angular/React, LESS/SASS
• Hands on experience with JavaScript
• Development on both client and server-side
• Experience on Angular 2+  and React Js will be an plus point
• Experience on both MEAN/MERN Technologies will be an advantage.

• This is mainly a full stack position .net or Java experience
• Full Stack Experience in Angular 5+ along with Dot Net is preferred
• Dot Net experience in C#,Entity framework in Postgre SQL,Restful web services,Azure and AWS cloud solutions,HTML5,CSS3,JavaScript and Bootstrap and Angular

The Application Developer will be responsible for developing custom solutions specializing in C# and NET technologies to support the overall enterprise application initiatives Guides team members in

Adhere to NET framework for automation projects to ensure manageability and maintainability of ode base

7+ years of work experience in developing Business IT Applications, Digital technologies, and Platform implementation

Practical experience of developing machine learning systems

Strong software skills in Python/R/C#

Experience in using machine learning frameworks and libraries such as TensorFlow a plus

Lead and work with ML engineers and data scientists to build smart automation & ML applications

Strong software troubleshooting skills, and an understanding of programming constructs in C# NET, in a MS Windows based enterprise software environment

Lead and work with ML engineers and data scientists to build smart commerce services & ML applications

Identify what kind of data in which format should be collected in order to solve the problem

Strong understanding of programming concepts and a programming background with C# NET

Strong understanding of Process Design documents, Technical Design documents and BPMN 20 standards

Strong understanding of web technologies, HTML, CSS, JavaScript, xml, xaml

Strong understanding of relational database design, writing queries and stored procedures with MySQL or Microsoft SQL

Strong understanding of Object Oriented Analysis and Development within large enterprise level applications