
Roles & Responsibilities -
This position is a hands-on Python / SQL software developer role, candidate needs to have exposure to electronic trading business, proficient in python and experience building systems for data processing. The candidate will join the front office development team
- Build and maintain infrastructure for data retrieval, processing and storage
- Build strong working relationships with international teams
- Be willing and able to adapt to changes in priorities
- Ability to learn and apply new technologies to deliver added business value
- Maintain a strong focus on quality
Skill Sets & Prerequisites -
- Proficient in Python / SQL
- Good understanding of data base management systems
- Experience developing and maintaining systems that handle large amounts of data
- Understanding of Electronic Trading Systems
- Attention to detail and code quality
- Excellent problem solving and analytical skills in a high-pressure environment
- Strong communication skills and an ability to convey ideas and concepts with clarity

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Job Title: Backend Developer (Full Time)
Location: Remote
Interview: Virtual Interview
Experience Required: 3+ Years
Backend / API Development (About the Role)
- Strong proficiency in Python (FastAPI) or Node.js (Express) (Python preferred).
- Proven experience in designing, developing, and integrating APIs for production-grade applications.
- Hands-on experience deploying to serverless platforms such as Cloudflare Workers, Firebase Functions, or Google Cloud Functions.
- Solid understanding of Google Cloud backend services (Cloud Run, Cloud Functions, Secret Manager, IAM roles).
- Expertise in API key and secrets management, ensuring compliance with security best practices.
- Skilled in secure API development, including HTTPS, authentication/authorization, input validation, and rate limiting.
- Track record of delivering scalable, high-quality backend systems through impactful projects in production environments.
Skills:
Strong knowledge of MYSQL/PostGreSQL; Knowledge of MongoDB, Redis, Couch DB is preferred.
Expertise in application development, databases, version control, and deployment. Skill - Node.js,
Experience of AWS or GCP - especially services such as Lambda or google app engine
Solid grasp of Service-oriented architecture. Web Services implementation on a medium to large scale
Solid understanding of scaling mobile app services. Having worked the backend of an Android app is preferred
Culture:
Ability to work independently with minimal supervision
Happy to deal with, and contribute to, an environment of daily builds Has worked in small teams, is versatile. Work within short timelines and be receptive to business needs. Can work closely with Digital, Product, Operations teams.
Desirable Social Attributes:
Has contributed to one or more Open Source projects through own initiative. Has provided a high quality answer to a question posted on StackOverflow.
Role:
As a Software Developer who would work independently, the candidate is expected actively acquire problems and deliver solutions as well as guide the team technically. Such a problem solver would obviously be a self starter with a high level of curiosity rather than a programming language specialist.
He/she would be required to produce software of the highest quality through self-discipline, clear and engaged communication, and attention to detail. The role would include custom web application development on (most typically on Node.js and PHP/Python), databases (most typically MySql and MongoDb), version control (github), testing (necessarily through test scripts written before code is written), daily builds and eventual deployment onto AWS or GCP.
Attributes of the ideal candidate:
Highly productive software developer with the proven aptitude to understand and apply technology
Determination to succeed despite obstacles and challenges, and a positive attitude favoring achievement of goals over open-ended investigation
Always learning, evolving, and sharing what you know
Inspired by complex, varied problems and rapid change
Open-minded, flexible, and curious about new and better ideas
Description:
For over 10 years, Zscaler has been disrupting and transforming the security industry. Our 100% purpose-built cloud platform delivers the entire gateway security stack as a service through 150 global data centers to securely connect users to their applications, regardless of device, location, or network in over 185 countries protecting over 3,900 companies and have detected 100 Million threats/day.
We work in a fast-paced, dynamic and make it happen culture. Our people are some of the brightest and passionate in the industry that thrives on being the first to solve problems. We are always looking to hire highly passionate, collaborative and humble people that want to make a difference.
About the role :
This is a senior staff backend engineer role in the engineering team that designs, implements and maintains our state of the art product IllusionBLACK. The team is responsible for designing and implementing secure, highly performant and maintainable product.
Responsibilities:
- Architect, develop and maintain high performance, fault tolerant and scalable cloud hosted service using NodeJS
- End to end responsibility to continuously create and monitor the services you build
- Help design reusable and clean API's for our frontend React app
- Guide team members with handling complex issues
- You will also be responsible for database schema design and development of migration scripts
- Experiment with new technologies and ideas and help shape our stack and processes
Requirement:
- 10+ years professional SW development experience
- All our production applications are built with either Typescript or Python. You must have a strong understanding of NodeJS express apps written in Typescript and ES6
- Must have good experience with Python
- Solid experience with databases is a must. We use and love Postgres here at Smokescreen
- You should be able to design a complex database SQL schema normalized to 3NF on the back of a napkin at 3am in the morning
- Deep understanding and working knowledge of Redis cache
- Experience with Solr or Elasticsearch is a must. We use Solr for our event analytics exclusively
- Experience with AWS, Azure or GCP is a plus. We have a large distributed application running on AWS
- Experience with Docker/Swarm is a plus
- Experience in some stream processing platforms like Kafka/Redis stream is a plus
Esper is looking for a software engineer to transform the customer experience
for developers and engineering teams using the platform of services to deploy
and build out their device fleets. You and your team will own services that will
enable customers to develop and customize their development process, along
with easing their use of Continuous Integration techniques for their software. We
need a leader that is experienced in delivering scalable multi-region fault tolerant
systems, is passionate about the developer tools space, is excited to have
software developers as their customers, and is obsessed about creating
compelling customer experiences.
In this role you will contribute to a critical and highly-visible function within the
Esper business. You will be given the opportunity to autonomously deliver the
technical direction of the service, and the feature roadmap. You will work with
extraordinary talent and have the opportunity to hire and shape the team to best
execute on the product. If you’re excited to have a large impact on Esper and the
device industry, you’ll find this role to be engaging, challenging, and full of
opportunities to learn and grow.
Key Responsibilities
Help drive business decisions with your technical input
Design, implement, test, deploy and maintain innovative software
solutions to transform service performance, durability, cost, and
security.
Use software engineering best practices to ensure a high standard of
quality for all of the team deliverables
Write high quality distributed system software
Work in an agile, startup-like development environment, where you are always working on the most important stuff.
Basic Qualifications
2 -4 years of professional software development experience
You’ve designed, built, scaled and maintained production services, and know how to compose a service oriented architecture.
Degree or foreign equivalent in Computer Science, Engineering, Mathematics, or a related field.
You write high quality, well tested code to meet the needs of your customers
You are comfortable with programming languages like Go, Python, Java
You’ve good understanding of databases system like Postgres. Extensive Knowledge about Postgres is a big plus.
You’ve have worked with Docker, Kubernetes and have fundamental understanding of distributed systems like Kafka, Elasticsearch
Preferred Qualifications
Experience taking a lead role developing complex software systems that have successfully been delivered to customers.
Experience in communicating with users, other technical teams and senior management to collect requirements, describe software product features, technical designs and product strategy.
Knowledge of professional software engineering practices & best practices for full software development life cycle, including coding standards, code reviews, source control management, continuous deployments, testing and operations
Demonstrated ability to mentor junior software engineers in all aspects of their engineering skill-sets.
What we think makes us special
Esper is a fast-growing, well-funded company where everyone matters and you can see your impact daily. We trust our teammates and offer intense ownership and therefore accountability. We’re inventing the future and building something special. The team really enjoys what we do and cares about your input. We don’t hire just to fill a spot, we want you to make a difference.
As you help us build this special company, Esper will take care of you. We offer flexible vacation, regular hack-days, competitive pay and benefits, and room for advancement. We hire capable veterans so we avoid the drama and trust in each other’s work. Our worldwide footprint mixes different cultures for a unique experience. We also like to have fun because we play just as hard as we work.
- Experience in Web and Mobile Applications.
- Agility and ability to adapt quickly to changing requirements and scope and priorities
- Strong proficiency with JavaScript (ECMAScript 5, 6)
- Knowledge of Node.js and frameworks available for it (SailsJS, Express)
- Understanding the nature of asynchronous programming and its quirks and workarounds.Familiarity with front-end technologies.
- User authentication and authorization between multiple systems, servers, and environments.
- Interaction with multiple data sources.
- Good understanding of SQL syntax.
- Understanding fundamental design principles behind a scalable application.
- Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform.
- Implementing automated testing platforms and unit tests.
- Proficient understanding of code versioning tools, such as Git.
- Knowledge in the field of IOT is good to have.
Managing & mentoring a team of 5+ people
Ability to deliver projects/sprints on time
Obsessed with quality: Design reviews, code reviews, testing (system/performance)
Spending at least 50% time with hands-on coding while doing the above
Programming
Hands on experience with design and implementation of of WebApps and APIs using a PHP based framework (such as Laravel, Code Igniter, Cake or similar)
In addition to PHP, hands-on with a Python or node.js based framework
Good understanding of SQL (mySQL, postgres or similar. including clustering)
Good understanding of one no-SQL
Comfortable producing and refactoring code without assistance
Understands different major language paradigms (object oriented / functional /reactive)
Can reason about complexity of algorithms (time and space)
Basic CI/CD and DevOps









