Web Developer

Job Title : Full Stack Developer

Experience : 8+ Years

Location : Remote (ARG / Eastern Time Zone Preferred)

Employment Type : Full-Time

Working Schedule : Monday to Friday (Eastern Time)

About the Role :

We are hiring an experienced Full Stack Developer to build and scale high-performance web applications and platform features. This role is ideal for someone who enjoys ownership, moves fast, and delivers quality solutions in a product-driven environment.

Mandatory Skills :

WordPress, PHP, Full Stack Development, MySQL/MariaDB, Web Performance Optimization, Great communication skills without fillers, Strong ownership mindset.

Key Responsibilities :

• Build, maintain, and optimize full stack web applications.
• Develop scalable and user-friendly experiences.
• Improve platform performance, reliability, and speed.
• Collaborate with cross-functional teams to deliver new features.
• Support production issues and ensure smooth application operations.

Required Qualifications :

• Minimum 8+ years of experience (MANDATORY).
• Bachelor’s degree in Computer Science or equivalent practical experience.
• Strong hands-on experience with WordPress and PHP.
• Strong understanding of Full Stack Development.
• Experience with MySQL/MariaDB.
• Ability to work independently in a fast-paced remote environment.
• Excellent communication and problem-solving skills.

Preferred Skills :

• AWS / Cloudflare / GCP exposure
• DevOps and infrastructure understanding
• A/B testing, analytics tools, and SQL experience

Working Style :

• Outcome and delivery-focused role — performance is measured by results, not hours logged.
• Daily and weekly goals will be aligned in advance. Efficient execution is valued over fixed working hours.
• While the standard schedule is Monday–Friday (ET), occasional availability outside regular hours (including weekends) may be required to support critical issues when necessary.
• If you thrive in ownership-driven environments and enjoy building impactful products, we’d love to connect.

Job Overview

Architect and build scalable, high-performance backend systems while working on mission-critical platforms that process real-time market data and portfolio analytics. The role also involves leveraging Generative AI capabilities to enhance data intelligence, automation, and user-facing features, while ensuring regulatory compliance and secure financial transactions.

Key Responsibilities

• Design, develop, and maintain scalable backend services and APIs using NodeJS and Python
• Build event-driven architectures using RabbitMQ and Kafka for real-time data processing
• Develop and manage data pipelines integrating PostgreSQL and BigQuery for analytics and warehousing
• Integrate and deploy Generative AI models (LLMs, embeddings, AI APIs) into backend systems for automation, insights, and intelligent workflows
• Design AI-powered features such as recommendation systems, document processing, or conversational interfaces
• Ensure system reliability, security, and low-latency performance for mission-critical systems
• Lead technical design discussions, conduct code reviews, and mentor junior engineers
• Optimize database queries, implement caching strategies, and improve overall system performance
• Collaborate with cross-functional teams to deliver end-to-end product features
• Implement monitoring, logging, and observability solutions

Required Skills and Qualifications

• 2+ years of professional backend development experience
• Strong expertise in NodeJS and Python for production-grade applications
• Proven experience building RESTful APIs and microservices architectures
• Experience working with Generative AI frameworks/APIs (OpenAI, LangChain, vector databases, prompt engineering)
• Understanding of integrating LLMs into production systems (RAG, embeddings, fine-tuning basics)
• Strong proficiency in PostgreSQL, including query optimization and schema design
• Hands-on experience with RabbitMQ and Kafka
• Experience with BigQuery or similar data warehousing solutions
• Solid understanding of distributed systems, scalability patterns, and high-traffic applications
• Strong knowledge of authentication, authorization, and security best practices
• Experience with Git, CI/CD pipelines, and modern development workflows
• Excellent problem-solving and debugging skills
• Exposure to fintech or financial services, cloud platforms (GCP/AWS/Azure), Docker/Kubernetes, caching tools (Redis/Memcached), and regulatory requirements (KYC, compliance, data privacy) is a plus

Apply directly at: https://wohlig.keka.com/careers/jobdetails/136351

About
we are building the next big thing in payments for Millennials. Payments are supposed to be simple, intuitive and fast, and we are ensuring that. As the indie creator economy grows, peer-to-peer payments and digital fulfilment will keep growing and a growing number of merchants are earning from direct payments for the digital creations. At Slash we are creating a platform for merchants to seamlessly connect and earn from their supporters and consumers, while also building a payment platform that Millennials will fall in love with.

Responsibilities

The platform that will drive payments at slash will be the social profiles and payment pages for the merchants. You will be responsible for building the social platform on which merchants can build their profiles, list items for sale, the APIs that power the entire UI experience for Slash.

• 3+ years of experience in NodeJS Backend development
• Good understanding of data structures, algorithms and system design
• Awareness of OOP paradigm, SOLID principles and design patterns
• Experience with TypeScript would be a bonus
• Experience with SQL and noSQL databases and ORMs like Sequelize and Mongoose
• Solid understanding of HTTP, Network principles, caching strategies
• Experience with authentication strategies like Oauth, JWT, passport.js
• Aptitude to work at early growing startup environment

• Lead multiple client projects in the organization. 
• Define & build technical architecture for projects. 
• Introduce & ensure right coding standards within the team and ensure that it is maintained in all the projects. 
• Ensure the quality delivery of projects. 
• Ensure applications are confirmed to security guidelines wherever required. 
• Assist pre-sales/sales team for converting raw requirements from potential clients to functional solutions. 
• Train fellow team members to impose the best practices available. 
• Work on improving and managing processes within the team. 
• Implement innovative ideas throughout the team to improve the overall efficiency and quality of the team. 
• Ensure proper communication & collaboration within the team 
  
  

7+ Years of experience in developing large scale applications. 
Solid Domain Knowledge and experience with various Design Patterns & Data Modelling (Associations, OOPs Concepts etc.)
Should have exposure to multiple backend technologies, and databases - both relational and NOSQL databases
Should be aware of latest conventions for APIs
Preferred hands-on experience with GraphQL as well as REST API
Must be well-aware of the latest technological advancements for relevant platforms. 
Advanced Concepts of Databases - Views, Stored Procedures, Database Optimization - are a good to have.
Should have Research Oriented Approach 
Solid at Logical thinking and Problem solving 
Solid understanding of Coding Standards, Code Review processes and delivery of quality products 
Experience with various Tools used in Development, Tests & Deployments. 
Sound knowledge of DevOps and CI/CD Pipeline Tools 
Solid experience with Git Workflow on Enterprise projects and larger teams 
Should be good at documentation at project level and code level ; Should have good experience with Agile Methodology and process
Should have a good understanding of server side deployment, scalability, maintainability and handling server security problems.
Should have good understanding on Software UX 
Proficient with communication and good at making software architectural judgments
Expected outcomes 

• Growing the team and retaining talent, thus, creating an inspiring environment for the team members. 
• Creating more leadership within the team along with mentoring and guiding new joiners and experienced developers. 
• Creating growth plans for the team and preparing training guides for other team members. 
• Refining processes in the team on a regular basis to ensure quality delivery of projects- such as coding standards, project collaboration, code review processes etc. 
• Improving overall efficiency and team productivity by introducing new methodologies and ideas in the team. 
• Working on R&D and employing innovative technologies in the company. 
• Streamlining processes which will result in saving time and cost optimization 
• Ensuring code review healthiness and shipping superior quality code 
  
  
  

• Unlimited learning and growth opportunities 
• A collaborative and cheerful work environment 
• Exceptional reward and recognition policy  
• Outstanding compensation  
• Flexible work hours  
• Opportunity to make an impact as your work will directly contribute to our business strategy.
  ​

At Nickelfox, you have a chance to craft a career path as unique as you are and become the best version of YOU. You will be part of a team with a ‘no limits’ mindset in an inclusive, people-focused culture. And we’re counting on your unique perspective to help Nickelfox grow even faster.  

Are you passionate about tech? Dedicated to learning? Come, join us to build an extraordinary experience for yourself and a dignified working world for all. 
 

What makes Nickelfox a great place for you?

In Nickelfox, you’ll join a team whose passion for technology and understanding of business has driven the company to serve clients across 25+ countries in just five years. We partner with our customers to fuel their growth story and enable them to make the right decisions with our customized technology services and insights. All in all, we are passionate to see our customers win the day. This is the reason why 80% of our business comes from repeat clients.  

Our mission is to provide dignified employment and an environment that recognizes the uniqueness of every individual and values their expertise, and contribution. We have a culture that encourages everyone to bring their authentic selves to work. Our people enjoy a collaborative work environment with exceptional training and career development. If you like working with a curious, youthful, high-performing team, Nickelfox is the place for you.

• Strong working knowledge of Typescript, MongoDB, MySQL, Express

• Strong proficiency in TypeScript, JavaScript including DOM manipulation and the JavaScript object model, ES6

• Hands-on experience in React JS

• Strong understanding of HTML5, CSS3

• Strong understanding of NodeJS fundamentals

• Knowledge and experience working with PostgreSQL is a major plus

• Experience with ORM libraries

• Familiarity with RESTful APIs

• Knowledge of tools like Git, GitHub, JIRA, Cucumber, Jasmine, and others that make coding more efficient and easier to share
• Familiarity of working in either the AWS Cloud or Azure including Docker + Kubernetes based microservice deployment.

• Work experience as Python developer
• Should have experience in  developing and working on consumer facing web/app products on in Django framework
• Should have experience working with react js front end design.
• Thorough knowledge of data stores, MyScore AWS services and should have experience with EC2, ELB, AutoScaling, CloudFront, S3
• Experience in Frontend codebases using HTML, CSS and Javascript
• Good understanding of Data Structures, Algorithms and Operating Systems
• Good experience of developing and integrating APIs
• Knowledge of object-relational mapping (ORM)
• Able to integrate multiple data sources and databases into one system (mysql)
• Understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Proficient understanding of code versioning tool (git)
• Good problem-solving skills