
Senior Software Engineer
at Build a SaaS Spend Management product. San Francisco Based
software products.
● Degree in Computer Science, Maths, or equivalent.
● Experience with AWS or Google Cloud or Azure.
● Experience with RDBMS and NoSQL: MySQL/MariaDB or PostgreSQL,
DynamoDB or MongoDB.
● Fluent in common design patterns, modular architecture, microservices, and a
demonstrated web and polyglot development experience.
● Passionate about distributed computing and building applications that are
robust, scalable, and keep the customers happy.
● Proficiency in programming languages such as Java, Scala; a strong foundation
in data structures, algorithms, understanding of threads, synchronization, and
concurrent programming.
● Experience with deployment, configuration, automation tools, and DevOps
methodologies.
● Understanding of Internet security models, REST API, and application
integration.
● Good to have some understanding of Serverless.

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About us
CallHub provides cloud based communication software for nonprofits, political parties, advocacy organizations and businesses. We have delivered over 200 millions messages and calls for thousands of customers. We help political candidates during their campaigns in getting their message across to their voters, conduct surveys, manage event/town-hall invites and with recruiting volunteers for election campaigns. We are profitable with 8000+ paying customers from North America, Australia and Europe. Our customers include Uber, the Democratic Party, major political parties in the US, Canada, UK, France and Australia.
About the Role
As a Senior/Lead Software Engineer at CallHub, you will play a critical role in leading the development and enhancement of our cloud-based communication and telephony platform (SaaS). You will be responsible for designing, building, and optimizing scalable, high-performance backend systems that support the rapid growth of our global user base, ensuring reliability, security, and customer satisfaction at every step. In this role, you will collaborate with cross-functional teams of highly skilled software engineers, operations engineers, and product managers to drive innovation and create products that delight customers by exceeding their expectations. You will lead technical decision-making, mentor engineers, and be responsible for building robust systems that are always available, while also contributing to the development of automation tools to streamline processes and improve efficiency. We are seeking experienced engineers with a deep understanding of software engineering principles, strong problem-solving skills, and a passion for leading teams to deliver impactful, customer-focused solutions. If you thrive in a fast-paced environment, love solving complex technical challenges, and are excited about mentoring and guiding the next generation of engineers, we’d love to hear from you!
Your Responsibilities
- Lead the design, development, and deployment of complex, scalable, reliable, and highly available features for world-class SaaS products and services.
- Guide the engineering team in adopting best practices for software development, code quality, and architecture.
- Make strategic architectural and technical decisions, ensuring the scalability, security, and performance of software applications.
- Proactively identify, prioritize, and address technical debt to improve system performance, maintainability, and long-term scalability, ensuring a solid foundation for future development.
- Collaborate with cross-functional teams (product managers, designers, and stakeholders) to define project scope, requirements, and timelines.
- Mentor and coach team members, providing technical guidance and fostering professional development.
- Oversee code reviews, ensuring adherence to best practices and maintaining high code quality standards.
- Drive continuous improvement in development processes, tools, and technologies to increase team productivity and product quality.
- Stay updated with the latest industry trends and emerging technologies to drive innovation and keep the team at the cutting edge.
- Ensure project timelines and goals are met, managing risks and resolving any technical challenges that arise during development.
- Foster a collaborative and inclusive team culture, promoting open communication and problem-solving.
- Imbibe and maintain a strong customer delight attitude while designing and building products.
What we’re looking for
- 7+ years of experience in software engineering, with a proven track record of leading engineering teams and mentoring junior developers.
- Strong expertise in designing and developing scalable backend systems, web services, and REST APIs using Python/Django or similar frameworks.
- Solid understanding of cloud-based architectures and microservices, with experience in deploying and maintaining SaaS applications.
- Solid experience in software engineering principles, including CI/CD pipelines, unit testing, code reviews, and version control (e.g., Git).
- Proficiency in working with databases like PostgreSQL, and experience in optimizing queries and ensuring high availability.
- Deep knowledge of computer science fundamentals, including data structures, algorithms, and software design principles.
- Experience with frontend technologies such as React, JavaScript, HTML, and CSS, and an understanding of how they integrate with backend services.
- Ability to quickly adapt to new technologies and make informed technical decisions in dynamic environments.
- Strong attention to detail, with the ability to empathize with customer needs and translate them into impactful software solutions.
- Excellent written and verbal communication skills, with the ability to clearly articulate technical concepts to both technical and non-technical stakeholders.
- Collaborative team player, willing to support and work closely with cross-functional teams.
- Bachelor’s or Master’s degree in Engineering or Computer Science from a reputable institution.
What you can look forward to
- Leadership and Ownership: Lead and oversee the entire software development lifecycle, from system design and development (backend and frontend) to QA and DevOps, with a focus on driving high-impact projects.
- Strategic Impact: Witness the direct impact of your work on our users and the overall success of the company, shaping products and solutions that make a significant difference.
- Innovative Technologies: Stay at the forefront of technology by working with the latest tools and frameworks, as we continuously innovate to deliver reliable and scalable solutions for our customers.
- Collaborative Culture: Engage in a culture of openness and collaboration, where your insights and leadership help drive the company’s success and delight our customers.
"Shypmax is India's first & only Cross border Logistics Platform backed by a contemporary product and premium service. We are one of the first IOSS ready courier service in India, focusing on compliance with
new regulations in the European Union (EU). We deliver to 220countries in the UK, USA, South East Asia, Australia, Europe, & Canada with 70+ carrier and network partnerships placed globally with a perfect
combination of technology and optimized shipping solutions."
Job Responsibilities:
Prior experience in deploying scalable infrastructure on the cloud.
Architect, design and develop web applications using Restful Services on Node.js.
Proficient understanding of code versioning tools, such as Git.
Lead code reviews to drive teams to the highest standards for Node.js web apps.
Strong background in algorithms, data structures, database design.
Experience in Node, Redis.
Experience in cloud infrastructure like google app engine/AWS/Heroku etc.
Design and create efficient RESTful endpoints for both internal and public consumption.
Participate in regular bug fixing Intimate knowledge of Git, Github, AWS, CDNs.
Experience with creating RESTful endpoints using the REST framework.
Developing high performing REST APIs for application functionality.
Necessary Requirement:
Min -2 years of Experience with Node.js
Min -1 years webhook Integration, Api Integration .
Hands on Experience working on Node. Js
Hands on Experience in REST APIs for application functionality.
Hands on Experience in cloud infrastructure



- Experience in JQuery is mandatory.
- Experience in PHP ORM framework is mandatory (Doctrine ORM or any other ORM- s).
- Experience in HTML, CSS.
- Strong in Object-Oriented Concepts.
- Experience in MYSQL.
- Good to have knowledge Of React.
- Need to be professional in Laravel MVC framework.
- Having knowledge in PHP, CSS3, HTML5, JavaScript, JSON/REST, JQuery, AJAX, Bootstrap4 is preferable.
Requirements:
- 3+ years’ experience under your belt developing performance-critical applications that run in a production environment using Node.Js
- Expertise in Database modeling, preferably relational DB, spotting DB bottlenecks, and writing optimized DB queries.
- Expertise in common Cloud technologies, AWS/GCP Knowledge of CI/CD tools and workflows.
- Knowledge in one or more of the following: NoSQL (especially, but not only Redis), Queueing system experience (Kafka, RabbitMQ, ActiveMQ, MSMQ)
- Good stakeholder management skills, with an ability to build trust and rapport with internal and external stakeholders
- It is good to have knowledge of Kubernetes and Docker and related deployment technologies.
Roles & Responsibilities:
- Write well-designed, testable, efficient, and high-quality code.
- Design (LLD & HLD) and architect technical solutions for the business problems of a large-scale system.
- Prepare and produce releases of software components.
- Support continuous improvement by investigating alternatives and technologies.
- Contribute to all phases of the development lifecycle
- We believe leadership comes through ownership and so we love people who take ownership of their work and lead by example
Thingworx Developer/Sr Developer
Required experience range between 3-6 years.
· Thingworx Navigate experience desired
· Languages - Java, JavaScript & CSS
· Experience in Core Java, Java collections & Oops Concept
· Databases – MySQL, MS-SQL
· Having good working knowledge with XML, JSON.
· Design and Application development using Thingworx version - (8.2,8.5,9.X)
· ThingWorx service creation using JavaScript
· Develop ThingWorx extension using Java
· ThingWorx service creation using Java Extension
· ThingWorx mashups design and development
· Data storage in ThingWorx - Stream/Value Stream/Data Tables
· Integration with source/target system using REST API, data Files.
· Familiar with Agile Methodologies (SCRUM)
· Thingworx Integration with 3rd apps preferred and will be added advantage
We at Fabzen Technologies are looking for a knowledgeable and experienced individual to fulfil the role of Spring boot developer.
Requirements:
- Bachelor’s degree in Computer Science, Software Engineering or related field.
- Professional experience on a software development team as a developer.
- Strong software documentation skills.
- Ability to comprehend and implement detailed project specifications as well as the ability to adapt to various technologies.
- Strong problem-solving skills.
- Understanding of Software Development Life Cycle.
- High attention to detail.
- Excellent troubleshooting and communication skills.
- Able to work well in a team setting.
The candidate must be proficient at:
- Socket programming
- Async await and promises
- Databases such as mongo, MySQL
- Passport JS for Google and Facebook integration
- Working on APIs with authentication and authorization
- Building frontend for mobile applications
- MVC architecture
Responsibilities:
- Work closely with the development team to deliver code as required for the applications and their updates.
- Ensure the design and development of the application fulfil our requirements and achieve desired objectives.
- Ensure company standards are followed; Project schedules and issues are effectively managed, and the same is effectively communicated.
- Ensure documentation, knowledge sharing, and training in new software.
- Create technical specifications and test plans.
- Monitor the functioning of the application and provide suggestions and support to maintain the same.
Experience in a game development company or in developing gaming applications would be an added advantage.
Job title- SSE/Associate Technical Lead/Technical Lead
Experience
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Extensive product development experience
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4-8 years experience in back end Java Development
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Possess advanced knowledge of object-oriented design and development (OOA/OOD).
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Team task assignment, mentoring and helping resolve issues
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Self-starter, ability to work with minimal supervision.
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Skilled at working collaboratively in a team-oriented environment.
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Excellent problem-solving skills. Curious and adept at researching project-related issues and challenges.
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Excellent debugging skills
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Experience in SOA and microservice deployment model.
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GWT development experience
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Experience of working in an Agile development model
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Mixed experience in different type of organizations - product start up and large enterprises
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Other Skills
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Strong Analytical skills
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Acumen for understanding customer's business goals
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Process oriented- Following current processes and partner in process improvement.
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Data oriented- Using data and knowledge base for solving current problem at hand and creating software knowledge base for future use.
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Ability to juggle multiple development and design tasks simultaneously.


About us:
Swazei is a US-based remote software product experience company headquartered in San Diego, California. We are a bunch of technology enthusiasts from all over the world. We are called Lunavo because we believe that it is possible to bring the Moon to the Earth. We believe in making things possible. We are passionate about executing products with agile lean processes that work to create product experiences that drive results. We have created an ecosystem of talent spread across geographies and agile design and development processes to create software that delivers value for our clients. (www.swazei.com).
Joining: IMMEDIATE
WORK FROM HOME OPPORTUNITY
Job Requirements:
- Should have at least 3 yrs of experience with Codeignitor
- HandsOn Experience in Codeigniter must
- Experience in frameworks like Yii, Symphony, jQuery, etc.
- Proficiency in tools like AJAX, CSS, Java Scripting, etc.
- Experience in MySQL, Joomla, WordPress, etc.
- Should have worked as Team Lead
- should have Retail/Ecom/POS domain knowledge
Job Type: Full-time


