Founding Engineer (Part-time, Equity only)

Mission

Own architecture across web + backend, ship reliably, and establish patterns the team can scale on.

Responsibilities

• Lead system architecture for Next.js (web) and FastAPI (backend); own code quality, reviews, and release cadence.
• Build and maintain the web app (marketing, auth, dashboard) and a shared TS SDK (@revilo/contracts, @revilo/sdk).
• Integrate Stripe, Maps, analytics; enforce accessibility and performance baselines.
• Define CI/CD (GitHub Actions), containerization (Docker), env/promotions (staging → prod).
• Partner with Mobile and AI engineers on API/tool schemas and developer experience.

Requirements

• 6–10+ years; expert TypeScript, strong Python.
• Next.js (App Router), TanStack Query, shadcn/ui; FastAPI, Postgres, pydantic/SQLModel.
• Auth (OTP/JWT/OAuth), payments, caching, pagination, API versioning.
• Practical CI/CD and observability (logs/metrics/traces).

Nice-to-haves

• OpenAPI typegen (Zod), feature flags, background jobs/queues, Vercel/EAS.

Key Outcomes (ongoing)

• Stable architecture with typed contracts; <2% crash/error on web, p95 API latency in budget, reliable weekly releases.

About Us

21 Knots is a design, engineering, and consulting firm providing services to the global maritime and oil & gas industry. In an industry constantly evolving due to dynamic regulations, economic fluctuations, and climate change mandates, we strive to deliver cutting-edge solutions with an unwavering commitment to excellence. Our comprehensive services are designed to create value for our esteemed clients while enabling them to achieve their business goals.

The Role

We’re looking for a skilled and motivated Software Developer to join our team at 21 Knots. Someone with backend development with a working knowledge of frontend technologies. The ideal candidate will have a strong command of backend frameworks such as Django, FastAPI, or Flask, and familiarity with frontend tools like HTML, CSS, JavaScript, and optionally React, Angular, or Vue. You will play a key role in building, maintaining, and optimizing scalable software solutions while collaborating with a team

Responsibilities

• Develop,test, and maintain backend services using Django, FastAPI, or Flask.
• Design and implement RESTful APIs for web and internal tools.
• Work with relational and non-relational databases such as PostgreSQL, MySQL, or MongoDB.
• Optimize application performance and implement backend security best practices.
• Collaborate with frontend developers, designers, and cross-functional teams to deliver high-quality solutions.
• Write clean, maintainable, and well-documented code.
• Support basic frontend development tasks using HTML, CSS, and JavaScript.
• Work with modern frontend frameworks like React.js, Angular, or Vue (good to have).

What You’ll Need

Experience:

• 1–4 years of hands-on experience in backend development.
• Exposure to full-stack development environments.
• Experience working with RESTful APIs, databases, and cloud integration is a plus.

Education:

• Bachelor’s degree in Computer Science, Information Technology, or a related field.

Tools & Software Proficiency:

• Proficiency in Django, FastAPI, or Flask.
• Familiarity with PostgreSQL, MySQL, or MongoDB.
• Basic knowledge of frontend technologies: HTML, CSS, JavaScript.
• Exposure to Bootstrap or Tailwind CSS for responsive UI design.
• Good to have: experience with React, Angular, or Vue.
• Familiarity with cloud platforms (AWS, Azure, or GCP) and Agile/Scrum methodologies is an added advantage.

Skills & Competencies:

• Strong problem-solving and debugging skills.
• Understanding of RESTful architecture and secure coding practices.
• Ability to collaborate in a cross-functional environment.
• Good verbal and written communication skills.

Job Description:

•    Develop tools and applications by producing clean, efficient code.
•    Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development and proposed solutions
•    Perform validation and verification testing and debug code.
•    Work collaboratively with others to achieve goals
•    Experience working in an agile environment
•    Experience in implementing Object-Oriented Python, Django.
•    Good understanding on Django ORM.
•    Experienced in interfacing with *third party API’s using REST
•    Worked with varieties of Relational Databases (RDBMS) like SQLite, MySQL, PostgreSQL.
•    Experience in Version Control with Git and Bit bucket.
•    Experience with JIRA the development progress and tracking deadlines of the project
•    Experience with web applications using technologies like HTML5,CSS, JavaScript, JQuery, AJAX, Angularjs, Reactjs and Bootstrap, XML.
•    Knowledge in Pandas, Numpy will be addons

Responsibilities:

• Designing and developing mobile-first applications.
• Creating and maintaining clean and clear front-end code and backend APIs for our web and mobile applications.
• Automation and Deployments of builds - Frontend and Backend.
• Application Performance And Error Monitoring and Automation.
• Maintaining excellent test coverage for our code base.
• Working with our shared services and field teams to identify application bottlenecks and make relevant architectural decisions.
• Constantly optimizing our code bases with an eye for modularity and legibility.
• Writing documentation for our external and internal APIs.

Requirements:

• 4-7 years of professional web development experience.
• WordPress custom theme/plugin development from scratch.
• Mandatory experience in PHP and NodeJS packages (e. g. express, socket-io).
• Experience with AWS Lambda and EC2 is required.
• MySQL/PostgreSQL/Oracle.
• Javascript / jQuery / ES6
• CSS/SCSS
• Unix Server Administration.
• Gitlab and CI deployment experience.

Nice to have:

• Familiarity with at least one Javascript framework (React, Vue.js, etc.).
• Familiarity with CI/CD Pipeline.
• Excellent documentation skills.
• Ability to clearly articulate technical problems, design and implementation choices to a broad range of stakeholders (e. g. sales team, users, security experts).

Perks and Benefits

• Work from anywhere
• Competitive salary and bonus program
• Annual company retreats to fantastic places
• Unlimited Vacation Policy
• Great healthcare coverage
• Professional development allowance
• Internet Allowance
• Customised CMMversary rewards on your 1,3,5,7 and 10-year work anniversaries
• Career Enablement – We meld your upskilling initiatives with organization’s strategic planning
• Take your Birthday Off

We are looking for an experienced Senior Software Engineer who will develop designing and develop new software solutions; as well as support existing product updates and enhancements. Our Senior Software Engineer will join a growing team of developers responsible for building new and supporting existing products.

The ideal candidate will have the ability to prioritize well, communicate clearly, have a consistent track record of delivery and have excellent software engineering skills. Creative engineering is balanced with high quality and a customer focus. Must be able to work across multiple facets of the project and juggle multiple responsibilities at the same time. Strong analytic capability and the ability to create innovative solutions. We are looking for a highly motivated individual who is looking to grow their career in a fast-paced environment.

• Understand complex application design and program activities in the latest techniques and technologies: PHP, MySQL, Laravel, Rest APIs, Javascript, React, CSS, HTML and AWS Infrastructure
• Implement high-quality code in an agile, test-driven development environment
• Create high-performance APIs, libraries and microservices that scale to meet/exceed client expectations
• Participate in design and code reviews 
• Perform performance and scalability analysis as needed
• Find creative and elegant solutions to complex problems
• Research, evaluate and adopt next-generation technologies 
• Build automated unit and integration tests as needed 
• Work closely with our Designers, Engineers, Product Owners and Application Engineers and build automated solutions
• Determine operational feasibility by evaluating analysis, problem definition, requirements, solution development and proposed solutions
• Develop software solutions by studying information needs; conferring with users; studying systems flow, data usage and work processes; investigating problem areas; following the software development lifecycle
• Prepare and install solutions by determining and designing system specifications, standards and programming
• Accomplish engineering and organization mission by completing related results as needed
• Protect operations by keeping information confidential

• Mentor junior and mid-level engineers
• Make informed decisions quickly and take ownership of services and applications at scale
• Understand business needs and know how to create the tools to manage them
• Grow engineering teams by interviewing, recruiting and hiring

• 5+ years of experience with PHP, MySQL, Rest APIs, 
• 3+ years of experience with Javascript, React, CSS, and HTML
• Experience with AWS Infrastructure a plus 
• Experience with Github and tools like Bugsnag and Crashlytics 
• Experience working in an agile environment that follows Scrum or other agile methodologies 
• Experience developing software for Enterprise clients is preferred 
• Experience working with project management tools such as Asana or Trello is a plus
• Excellent time management skills, with the ability to work under deadlines in a fast-paced environment
• Attention to detail and commitment to high-quality/error free deliverables
• Great communication and problem-solving skills
• Detail-oriented and a critical thinker 
• Collaborate with team to brainstorm and create new products
• Stay on the leading edge of development practices
• A team player and leader but can work independently

About you

• Bachelor’s or Master’s in Computer Science or Computer Engineering  
• 6+ years of software development experience 
• Experience in SaaS (Software as a Service) model building scalable platforms utilizing micro services/distributed systems architecture using: restful APIs by internal and external partners 
• Understanding of data structures and algorithms
• Demonstrated experience with multi-tier applications
• Additional experience in customer-facing sustaining, support work and customer communication 

Our Culture

We help companies manage their biggest asset, their people. We are disrupting the corporate wellness market to help companies large and small to support employee and workplace wellbeing. If you’re ready to join our growing team and have the opportunity to be a part of a company that is focused on Woliba (Work-Life-Balance) then we’d love to hear from you. 

Responsibilities and Duties:

• Designing and implementing new features and functionalities.
• Technical help in resolving the support requests.
• Creating and maintaining documentation of the work.
• Design & develop web based applications using PHP/MySQL
• For more details visit website
• Requirements and qualifications:
• Proficient in MySQL, PHP, JavaScript, HTML & CSS.
• Comfortable working with debugging tools like Firebug, Chrome inspector, etc.
• Knowledge of how to interact with RESTful APIs and formats (JSON, XML)
• Experience in creating WordPress plugins from scratch.
• Experience in writing test cases.
• Collaboration with the team.
• Manage project tasks, timelines, and communication.
• Write efficient, robust, and reusable code while adhering to WordPress coding standards.
• Object-oriented programming.
• Knowledge of developing web based applications using PHP/MySQL

Desired Candidate Profile

• Strong PHP/MySQL capabilities.
• Passion for programming
• Sound coding logic and analytical ability to design test scenarios and debug issues
• Keen interest in research about the latest web technologies and advancements
• Enthusiasm to learn new technologies and incorporate them into the new offerings/solutions
• Good capabilities in HTML, CSS, Javascript.
• Exposure in Coding frameworks or CMSes.
• Ability to work in teams.
• Ability to learn fast. Good communication skills

You will be responsible for architecting, training the team and implementing your solution. You will be working closely with the Product Managers and the tech leads/developers to come up with high-quality, resilient, and highly performant applications.

• Design and develop SaaS-based applications based on microservices architecture.
• Work on core back-end and ensure it meets the performance benchmarks.
• Work on optimizing the middleware and backend technologies to ensure highest scalability.
• Work on best system design principles and ensure high availability.
• Designing and developing APIs for the front end to consume.
• Constantly improve the architecture of the application by clearing the technical backlog.
• Meeting both technical and consumer needs.
• Staying abreast of developments in web applications and programming languages.

An enthusiastic individual with the following skills. Please do not hesitate to apply if you do not match all of it. We are open to promising candidates who are passionate about their work and are team players.

• Education - BE/MCA or equivalent.
• Overall 8+ years of experience.
• Agnostic/Polyglot with multiple tech stacks.
• Worked on open source technologies - NodeJS, Typescript, ReactJS, MySQL, NoSQL, MongoDB, ELK, Kafka, Redis.
• Good experience with Front-end technologies like JavaScript frameworks, ReactJS, AngularJS.
• Back-end exposure - good knowledge of building API.
• Efficient in building microservices in combining server & front-end.
• Knowledge of cloud architecture especially using AWS and its features.
• Should be completely hands on and have the ability to develop quick Prototypes.
• Good understanding of CMS.
• Will be responsible for the functional/technical track of a project.

You will closely work with the engineering team and support the Product Team of Empuls.

A wholesome opportunity in a fast-paced environment will enable you to juggle between concepts yet maintain the quality of content, interact, 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.

A fast-growing SaaS commerce company based in Bangalore with offices in Delhi, Mumbai, SF, Dubai, Singapore, and Dublin. We have three products in our portfolio: Plum, Empuls, and Compass. Xoxoday works with over 1000 global clients. We help our clients engage and motivate their employees, sales teams, channel partners, or consumers for better business results.

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. However, we 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.

• Work with data science teams ,development teams and product managers to ideate
• software solutions
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs
• Test software to ensure responsiveness and efficiency
• Troubleshoot, debug and upgrade software .
• Create security and data protection settings
• Build features and applications with a mobile responsive design
• Write technical documentation
• Work with data scientists and analysts to improve software
• Capable to handle the individual module / Project

• 2-5 years of relevant experience as a Full Stack Developer or similar role
• Experience developing Web based,desktop and mobile applications
• Familiarity with common stacks
• Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript, XML, jQuery etc).
•  Knowledge of multiple back-end languages (e.g. Java, Python,C#) and JavaScript frameworks (e.g. Angular, React, Node.js)
• Experience in React.js .
• Experience in Python Django Framework .
• Familiarity with databases (e.g. MySQL,Postgresql, MongoDB), web servers (e.g.Apache) and UI/UX design .
• Familiarity with Cloud services like AWS, GCP.
• Excellent communication and teamwork skills
• Great attention to detail
• Organizational skills
• An analytical mind