Senior Blockchain Developer

🚀Job Title : Senior Backend Engineer (Java / Golang) SDE 3

Experience : 5 to 12 Years

Positions : 4

Employment Type : C2H (Contract to Hire)

Contract Duration : 3 Months

Location : Remote during contract → Pune after conversion

Work Mode After Conversion : 5 Days WFO

Notice Period : Immediate / Serving Notice / Up to 15 Days preferred

Mandatory Skills : Golang (1+ year mandatory), 5+ years Backend Development, System Design, Distributed Systems, Microservices, REST / GraphQL APIs, Event-Driven Architecture, SQL & NoSQL Databases, AWS / GCP / Azure, Strong Problem-Solving & Communication Skills.

About the Role :

We are looking for an experienced Backend Engineer / SDE 3 with strong expertise in Java / Golang to design and build scalable, secure, and high-performance backend services and APIs.

The role involves hands-on coding, system design, microservices, distributed systems, and collaboration with engineering and infrastructure teams.

Must-Have Skills :

• 5+ years of backend development experience.
• Strong hands-on experience with Golang.
• Minimum 1+ year of Golang experience is mandatory.
• Strong understanding of System Design & Distributed Systems.
• Experience with REST / GraphQL APIs.
• Experience with Microservices and Event-Driven Architecture.
• Experience with Event Queues / Asynchronous Processing.
• Strong knowledge of Relational and NoSQL databases.
• Familiarity with AWS, GCP, or Azure.
• Strong communication and problem-solving skills.

Important Note for Java Candidates :

Java candidates can be considered only if they have at least 1+ year of hands-on Golang experience and are willing to work in Golang.

Candidates with less than 1 year of Golang experience will not be considered.

Good to Have :

• Experience in Fintech / Payments / Transaction-heavy systems
• Docker & Kubernetes
• Datadog / Prometheus / Grafana
• CI/CD experience
• Exposure to Java or Ruby

Key Responsibilities :

• Design, develop, and maintain scalable backend services using Golang.
• Build reliable, secure, and high-performance microservices and APIs.
• Implement event-driven and asynchronous processing systems.
• Work on system architecture, scalability, performance, and reliability.
• Participate in system design, code reviews, and technical discussions.
• Collaborate with mobile, web, and infrastructure teams.
• Develop unit, integration, and performance tests.
• Contribute to CI/CD, observability, documentation, and engineering best practices.

Interview Process :

Round 1 : Take-Home Coding Assessment – Submission within 48 hours

Round 2 : Code Pairing – Problem Extension

Round 3 : Culture Fitment

ROLES AND RESPONSIBILITIES:

You'll work closely with our team to implement best practices, improve our architecture, and create a high-performance engineering culture. Over a 6–9-month period, you'll also immerse yourself in game development, Unity, and C# to become a well-rounded technical leader in the gaming space.

• Drive maximum development velocity through direct involvement in development sprints, ensuring developers work as efficiently and effectively as possible.
• Lead and mentor a team of engineers, fostering a culture of technical excellence and continuous improvement.
• Drive architectural decisions that ensure scalable, maintainable, and high-performance game products.
• Foster a high-performance engineering culture aligned with ambitious goals, accountability, and proactive problem-solving.
• Implement and enforce engineering best practices (e.g., code reviews, testing, documentation) and the adoption of new tools, technologies including AI, and methodologies to optimize team efficiency.
• Transition our team to a high-performance culture aligned with our ambitious, venture-backed goals.

IDEAL CANDIDATE:

• 8+ years of software engineering experience with at least 3+ years in a technical leadership role
• Ability to reasonably estimate and plan tasks and features.
• Strong programming fundamentals and hands-on coding abilities
• Strong grasp of software architecture, TDD, code reviews, and clean coding principles.
• Proficient at profiling games to identify bottlenecks and performance issues.
• Experience building complex, scalable software systems
• Proven track record of driving architectural decisions and technical excellence
• Experience mentoring and developing engineering talent
• Strong problem-solving skills and attention to detail
• Excellent communication skills and ability to explain complex technical concepts
• Experience with agile development methodologies
• Bachelor's degree in computer science, Engineering, or equivalent practical experience

PERKS, BENEFITS AND WORK CULTURE:

• We foster a culture of continuous learning.
• We value talent and the ability for significant self-improvement.
• Honest feedback and transparency across all departments allow for rapid skill development.
• You will have the opportunity to work on an exciting new game development product with complete autonomy.

What kind of work will you get?

We are looking for a Golang developer.

Examples of technical tasks:

Working on our backend SDK to implement APIs that will be consumed by the frontend widgets

Designing APIs for different auth recipes

Architecting auth flows

You will also be given non technical tasks like product brain storming, competitor analysis and writing documentation.

Note: Compensation is as per the applicant's geography

Requirements

Well versed in Golang with 2+ years of professional experience

Familiar with and comfortable working with Web frameworks like FastAPI, Django and Flask

Familiar with HTTP networking in Golang

Strong understanding of async and sync modes in Golang

Bonus:

Contributed to open source, or have your own open source repo with a community and many github stars

Built an in-house authentication or authorization solution or worked with solutions such as Keycloak, Auth0, Ory, Okta etc

You have 5 years or more of Backend end development experience with expertise in designing and implementing high-performance applications.

Worked with and built high-performance products using Node Js/GoLang/ Python and have seen the product evolution cycle from PoC to Production

You have a deep understanding of design principles and can rightly judge/implement solutions to complex problems

You are capable of writing high-quality code that conforms to the standards and best practices in a particular language/framework.

You have experience building a product using a mainstream library or framework.

You love to own end to end responsibility, starting from defining the problem statement (either yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then production environment, and finally monitoring.

Previous work experience in product-based startups

Experience building for products that have scaled and have seen the product evolution

Roles/Responsibilities

• Own the coding/design of a sub-module
• Review the requirements and provide simple solutions  
• Design the sub-module working with the tech-lead
• Hands-on code the critical parts of the module
• Ensure coding standards, proper design patterns, writing test cases and project mgmt processes are followed
• Mentor the junior programmers
• Peer and junior programmers code review
• Work independently and proactively to deliver production-ready code with minimal guidance

Jobs Skills required

• Strong experience in developing either backend or front end systems
• Backend Exp: RoR, NodeJS, Java, Go, MySQL, Mongo
• Ability to work in a team structure and deliver projects
• Very strong analytical and problem solving skills in super changing environment
• Understanding of algorithms and data structures

Responsibilities

• Writing scalable, robust,, testable, efficient, and easily maintainable code
• Translating software requirements into stable, working, high performance software
• Playing a key role in architectural and design decisions, building toward an efficient micro services distributed architecture

Skills

• Strong knowledge of Goprogramming language, paradigms, constructs, and idioms
• Knowledge of Goroutine and channel patterns
• Experience with the full suite of Goframeworks and tools, including:
• Dependency management tools such as Godep, Sltr, etc.
• Go’s templating language
• Go’s code generation tools, such as Stringer
• Popular Goweb frameworks, such as Revel,Gin
• Router packages, such as Gorilla Mux
• Ability to write clean and effective Godoc comments
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
• Good Written and Verbal communications.

Objective of the Role:
We are here to build a world-class tech organization with elite engineers and change-agents who would spearhead this change. Currently, we are looking for engineers who are skilled, passionate, driven and a wee bit crazy (yes, crazy works!) to join our tribe. The current position is for the supply chain teams and our primary focus is on scale and cost optimization. The small tweaks you make, the processes you alter, experiments you run and the business decisions you drive will have reverberating effects on our ability to add value to our customers and keep them coming back for more.

Role & Responsibilities

• Design and build the system which enables the logistics team to store and deliver 15 million products per month to customers across 20 cities in India
• Work on the vision, roadmap, and processes that make customer delivery experience more delightful
• Work across teams to design a platform that scales and is flexible enough for various kinds of future scenarios
• Work on optimizing the whole logistics supply chain from warehouse to customer
• Innovate to improve the efficiency of the existing supply chain systems
  Desired skills & abilities:
• 3-6 years of experience in software development
• B.Tech. / B.E. degree in Computer Science or equivalent software engineering degree/experience
• Experience in architecture and system design 2Experience in running high performance distributed systems
• Understanding and implementation of security and data
• Highly experienced in back-end programming languages like Python, Java, JavaScript
• Experience with cloud message APIs and usage of push
• Knowledge of code versioning tools such as Git, Mercurial or SVN
• Solid experience in software development practices
• Ability to mentor and manage teams
• Exposure to Agile/Scrum and Design thinking approaches
  
  
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