SDE2 / SDE 3 - Python

Role: Core infrastructure for two global applications.

Key responsibilities:

Heavy Data Lifting: Designing and maintaining complex MongoDB aggregation pipelines and executing high-volume bulk updates.

Systems Connectivity: Managing the lifecycle of Bridges, WebSockets, and REST APIs for global traffic.

Global Reliability: Troubleshooting performance regressions, managing SSL/TLS certificates, and optimizing AWS S3/EC2 resources.

Core Logic: Implementing server-side push notifications, custom payment flows, and background Cron orchestration.

Requirements (Must Have)

Production Experience: Proven experience managing backend services for live, high-traffic applications. (Must have)

Note: Learning projects, bootcamps, and online courses will not be considered.

Python Mastery: Expert-level proficiency in backend Python development. (Must have)

MongoDB Expertise: Deep knowledge of Aggregations and Bulk operations. (Must have)

AWS Proficiency: Direct experience with S3 and EC2 in a production setting. (Must have)

Infrastructure Logic: Ability to manage SSL/Encryption and optimize resource allocation (Cron vs. API). (Must have)

Description

Join company as a Backend Developer and become a pivotal force in building the robust, scalable services that power our innovative platforms. In this role, you will design, develop, and maintain server‑side applications, ensuring high performance and reliability for millions of users. You’ll collaborate closely with cross‑functional product, front‑end, and DevOps teams to translate business requirements into clean, efficient code, while participating in code reviews and architectural discussions. Our dynamic environment encourages continuous learning, offering opportunities to work with cutting‑edge technologies, cloud infrastructures, and modern development practices. As a key contributor, your work will directly impact product quality, user satisfaction, and the overall success of company's mission to streamline hiring solutions.

Requirements:

• 1–15 years of professional experience in backend development, with a strong focus on building APIs and microservices.
• Proficiency in server‑side languages such as Python, Java, Node.js, or Go, and solid understanding of object‑oriented and functional programming paradigms.
• Extensive experience with relational (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB, Redis), including schema design and query optimization.
• Familiarity with cloud platforms (AWS, GCP, Azure) and containerization technologies like Docker and Kubernetes.
• Hands‑on experience with version control (Git), CI/CD pipelines, and automated testing frameworks.
• Strong problem‑solving abilities, effective communication skills, and a collaborative mindset for working within multidisciplinary teams.

Roles and Responsibilities:

• Design, develop, and maintain high‑throughput backend services and RESTful APIs that support core product features.
• Implement data models and storage solutions, ensuring data integrity, security, and optimal performance.
• Collaborate with front‑end engineers, product managers, and designers to define technical requirements and deliver end‑to‑end solutions.
• Participate in code reviews, provide constructive feedback, and uphold coding standards and best practices.
• Monitor, troubleshoot, and optimize production systems, implementing robust logging, alerting, and performance tuning.
• Contribute to the continuous improvement of development workflows, including CI/CD automation, testing strategies, and deployment processes.
• Stay current with emerging technologies and industry trends, proposing innovative approaches to enhance system architecture.

Budget:

• Job Type: payroll
• Experience Range: 1–15 years

The tech stack looks like the below (expect this to change as we scale):

1. Typescript for APIs (REST and GraphQL)
2. Kafka, Spark, and data warehouses for ML pipelines (spark on python/scala)
3. Solidity + hardhat for smart contracts (in the future, rust, go and move)
4. AWS & Terraform
5. Full nodes

You can expect to do some or all of the following:

1. Read through protocols’ whitepapers and smart contracts to derive metrics and analyze risks
2. Architect the backend for APIs, async jobs, and blockchain integration
3. Build clean, concise APIs for customer integration, along with the documentation
4. Setup, run and maintain full and archive nodes across different chains
5. Integrate with multiple partners like exchanges and custody providers
6. Fool-proof security across the stack - encryption, hashing, privacy, VPC, etc.
7. Infrastructure as code - build terraform scripts and ensure easy replication of the infra across different regions
8. Research the top DeFi protocols to uncover better insights for our customers and evaluate their risk profiles, security, and historical returns
9. Manage production deployments, logging, and monitoring

We expect you to be fairly comfortable with working with both web3 and web2 stacks. We do not expect that you have web3 experience on day 1, but you should be willing to wear multiple hats, learn things quickly and move fast.

1. Generalist, a solid engineer who can learn things on your own and have an eye for clean, tested, and well-documented code
2. We don’t look at the number of years of work experience as a criterion, but rather see what you have done in your life so far (side projects, open-source contributions, blogs, etc.). We don’t care about degrees, the institutions you went to, or the companies you worked for before. We are open to talking as long as you have good judgment, great clarity, align with our values and have a strong track record of thoughtful work
3. Understand the fundamentals of building and integrating APIs and secure systems. Bonus if you know a bit about blockchains and protocols
4. You can be strong on the backend, front-end, or can dabble everywhere. We want you to play to your strengths and will provide enough opportunities to learn and do things outside of your comfort zone

Pay and benefits We offer a solid, competitive package (including early-stage equity) that is location agnostic. We give you the flexibility to choose the split between cash and equity.

Hello,

Greetings for the day !!!

We are hiring "Backend Developer" for one of the IT & digital tech solutions based organization @ US (Chicago) !!!

JOB BRIEF:

• We are looking for an experienced Back-end developer to join our IT team.
• You will be responsible for the server side of our web applications.
• If you have excellent programming skills and a passion for developing applications or improving existing ones, we would like to meet you.
• As a Back-end developer, you’ll work closely with our engineers to ensure system consistency and improve user experience.
• Ultimately, you should be able to develop and maintain functional and stable web applications to meet our company’s needs.

RESPONSIBILITIES:
Participate in the entire application lifecycle, focusing on coding and debugging

• Write clean code to develop functional web applications
• Troubleshoot and debug applications
• Perform UI tests to optimize performance
• Manage cutting-edge technologies to improve legacy applications
• Collaborate with Front-end developers to integrate user-facing elements with server side logic
• Gather and address technical and design requirements
• Provide training and support to internal teams
• Build reusable code and libraries for future use
• Liaise with developers, designers, and system administrators to identify new features
• Follow emerging technologies

REQUIREMENTS & SKILLS:

• Minimum of 5 years of work experience as a Back-end developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Knowledge of multiple back-end languages (e.g., C#, Java, Python, PHP, RUBY) and JavaScript
• frameworks (e.g., Angular, React, [website])
• Experience with .NET, C#, [website] MVC framework, .NET web APIs
• Familiarity with databases (e.g., MySQL, MongoDB, SQL server), web servers (e.g., Apache) and UI/UX design
• Skills on Database design, table, views creation,
• Writing SQL scripts, stored procedures, creating SQL Jobs etc. optimizing queries.
• Should be able to work with different rest APIs and consuming the data, make GET, PUT, POST calls
• Should be able to create APIs that others can consume
• Working knowledge of CMS framework
• Familiarity with front-end languages (e.g., HTML, JavaScript, and CSS)
• Excellent analytical and time management skills
• Teamwork skills with a problem-solving attitude
• BSc degree in Computer Science or relevant field

Employment Mode: Full time - Remote opportunity

Joining Period: Immediate to Max 30 days

Location: Full Fledge Remote

Shifts: US Shift

Responsibilities

1. Writing clean, high-quality, high-performance, maintainable code
2. Develop and support software including applications, database integration, interfaces, and new functionality enhancements
3. Coordinate cross-functionally to insure project meets business objectives and compliance standards
4. Support test and deployment of new products and features
5. Participate in code reviews

Skills & Qualifications

• 4-12 years of experience in Java Development.

• Excellent verbal and written English communication is a must. You may have to interact with clients directly.

• Technology agnostic approach is a must. Ready to adopt new technology and a faster learning curve.

• Writing scalable, maintainable and reusable code.

• Keen interest in SAAS based products and mobile applications.

• Experience working with Distributed Systems

• Java, Spring Boot, Microservices, API Design Experience with Event-Driven Architecture, Multithreading

• Kafka iOS Experience with Event Sourcing Reactive and Functional

• Programming Strong understanding of best practices for creating/working with Microservices

• Experience implementing Message Brokers and Messaging subsystems(experience working with Kafka a strong plus)

• Be open-minded, creative, and self-critical; be collaborative and communicative

• Have experience with and curiosity about agile and lean philosophies

• Experience working with small teams to ship products to market

• Have experience developing full-service consumer, employee and business applications

• Language agnostic and experienced polyglot Passion for Working Software and SOLID principles

• Experience with designing and refactoring complex systems

• Experience with Test-Driven Development (TDD) Interest in working in a pair-programming environment Deep understanding of design patterns and applying them in production environments

• Passion for enabling team members

• Java 8 or Java 11. Both are LTS. The project will be on Java11

• Spring Boot

• Git

• SQL

• AWS and AWS Aurora

• Microservices

• Multithreading

Perks

• Flexible time schedule.
• Work from home or work from anywhere.
• Health insurance.
• Team building activities.
• Training and conference tickets.

We are looking for a Software Engineer responsible for the development of backend APIs, services. Your primary focus will be the development of REST APIs and Unit-tests for code. You will be working alongside other engineers and developers working on different layers of the infrastructure. Therefore, a commitment to collaborative problem solving, sophisticated design, and the creation of quality products are essential.

Responsibilities:

• Developing and maintaining all server-side network components.
• Ensuring optimal performance of the central database and responsiveness to front-end requests.
• Collaborating with front-end developers on the integration of elements.
• Developing high-performance applications by writing testable, reusable, and efficient code.
• Implementing effective security protocols, data protection measures, and storage solutions.
• Running diagnostic tests, repairing defects, and providing technical support.
• Documenting Node.js processes, including database schemas, as well as preparing reports.
• Recommending and implementing improvements to processes and technologies.
• Keeping informed of advancements in the field of Node.js development.

Requirements:

• Sound knowledge in web application development using Node, JavaScript.
• Designing and creating RESTful APIs.
• 3-4 years of experience in node and javascript.
• Experience with databases like Elasticsearch, Redis.
• Experience using best coding practices, design patterns.
• Must have very good analytical skills.
• Proficient understanding of code versioning tools such as Git.
• Familiarity with continuous integration.
• Basic Knowledge in JIRA.
• Good to have familiarity with Docker.
• Good to have knowledge in Kafka, WSO2 Siddhi.

Responsibilities

• Build efficient, testable, and reusable wordpress modules
• Solve complex performance problems and architectural challenges
• Integration of data storage solutions
• Manage and update theme as per requirement

Skills

• Strong knowledge of wordpress
• WooCommerce plugin
• Understanding the fully synchronous behavior of PHP
• Understanding of MVC design patterns
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and CSS3
• Knowledge of object oriented PHP programming
• Understanding accessibility and security compliance
• Strong knowledge of the common PHP or web server exploits and their solutions
• Understanding fundamental design principles behind a scalable application
• Familiarity with limitations of PHP as a platform and its workarounds
• Creating database schemas that represent and support business processes
• Familiarity with SQL databases and their declarative query languages
• Proficient understanding of code versioning tools, such as Git