Senior Software Engineer (Back-End/Node.js/ AWS) | Holofy London

Skills Referential (Required knowledge, skills and abilities)

Technical Skills:

Python

Pyspark

SQL

ETL Aws, Azure, gcp

Job Description

Key Responsibilities

• API & Service Development:
• Build RESTful and GraphQL APIs for e-commerce, order management, inventory, pricing, and promotions.
• Database Management:
• Design efficient schemas and optimize performance across SQL and NoSQL data stores.
• Integration Development:
• Implement and maintain integrations with ERP (SAP B1, ERPNext), CRM, logistics, and third-party systems.
• System Performance & Reliability:
• Write scalable, secure, and high-performance code to support real-time retail operations.
• Collaboration:
• Work closely with frontend, DevOps, and product teams to ship new features end-to-end.
• Testing & Deployment:
• Contribute to CI/CD pipelines, automated testing, and observability improvements.
• Continuous Improvement:
• Participate in architecture discussions and propose improvements to scalability and code quality.

Requirements

Required Skills & Experience

• 3–5 years of hands-on backend development experience in Node.js, Python, or Java.
• Strong understanding of microservices, REST APIs, and event-driven architectures.
• Experience with databases such as MySQL/PostgreSQL (SQL) and MongoDB/Redis (NoSQL).
• Hands-on experience with AWS / GCP and containerization (Docker, Kubernetes).
• Familiarity with Git, CI/CD, and code review workflows.
• Good understanding of API security, data protection, and authentication frameworks.
• Strong problem-solving skills and attention to detail.

Nice to Have

• Experience in e-commerce or omnichannel retail platforms.
• Exposure to ERP / OMS / WMS integrations.
• Familiarity with GraphQL, Serverless, or Kafka / RabbitMQ.
• Understanding of multi-brand or multi-country architecture challenges.

About the role

We are seeking a seasoned Backend Tech Lead with deep expertise in Golang and Python to lead our backend team. The ideal candidate has 6+ years of experience in backend technologies and 2–3 years of proven engineering mentoring experience, having successfully scaled systems and shipped B2C applications in collaboration with product teams.

Responsibilities

Technical & Product Delivery

● Oversee design and development of backend systems operating at 10K+ RPM scale.

● Guide the team in building transactional systems (payments, orders, etc.) and behavioral systems (analytics, personalization, engagement tracking).

● Partner with product managers to scope, prioritize, and release B2C product features and applications.

● Ensure architectural best practices, high-quality code standards, and robust testing practices.

● Own delivery of projects end-to-end with a focus on scalability, reliability, and business impact.

Operational Excellence

● Champion observability, monitoring, and reliability across backend services.

● Continuously improve system performance, scalability, and resilience.

● Streamline development workflows and engineering processes for speed and quality.

Requirements

● Experience:

7+ years of professional experience in backend technologies.

2-3 years as Tech lead and driving delivery.

● Technical Skills:

Strong hands-on expertise in Golang and Python.

Proven track record with high-scale systems (≥10K RPM).

Solid understanding of distributed systems, APIs, SQL/NoSQL databases, and cloud platforms.

● Leadership Skills:

Demonstrated success in managing teams through 2–3 appraisal cycles.

Strong experience working with product managers to deliver consumer-facing applications.

● Excellent communication and stakeholder management abilities.

Nice-to-Have

● Familiarity with containerization and orchestration (Docker, Kubernetes).

● Experience with observability tools (Prometheus, Grafana, OpenTelemetry).

● Previous leadership experience in B2C product companies operating at scale.

What We Offer

● Opportunity to lead and shape a backend engineering team building at scale.

● A culture of ownership, innovation, and continuous learning.

● Competitive compensation, benefits, and career growth opportunities.

• 3+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 3+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

Role Overview 

As a Senior Backend Engineer, you will be working closely with our core team in building products from  scratch into large-scale platforms and solving business problems leveraging new and innovative  technology. More than anything, we are looking for engineers that are eager to learn and build a  meaningful company. We are a small team and encourage engineers to wear many hats 

Responsibilities  

• Design and build highly reliable and performant applications that deliver a great user experience.
• Own large technical deliverables and execute in a structured manner.
• Take the accountability of the overall health of the applications you build.
• Platformize components as libraries, utilities and promote reuse.
• Be able to conceptualize and develop prototypes quickly

Skills & Requirements

      ▪ Work Experience between 2 to 6  years in large scale applications with desire to work  in fast paced startups  

▪ Experience/Knowledge of Node.JS, Express .JS, AWS, MongoDB.

      Deep understanding of your tools: Languages, frameworks, systems.