
Infrastructure
Pocket Gems wants to build the greatest games and interactive entertainment in the world.
That’s the mission our founders began within an apartment above a pizza shop back in 2009
and we continue it today.
Pocket Gems has grown to over 250 people in San Francisco. With $155 million in backing from
Sequoia Capital and Tencent, we’re constantly breaking new ground with graphically rich mobile
games, fun new genres of mobile entertainment, and innovative technologies like our mobilefirst Mantis Engine.
Our products have been downloaded over 325 million times by players around the world. We
have several flagship products including the most recent - Adventure Chef Merge Explorer, a
casual merge and explore game. Some of our other ongoing hits include Episode, a mobile
storytelling network and platform, and War Dragons, a visually stunning 3D real-time strategy
game.
Pocket Gems is home to some of the most massive and delightful mobile-first games, like War
Dragons and Episode. Those games need a solid backend platform, to function critical tasks to
delight our players, and is supported and optimized by our Central Engineering team. As a Sr.
Software Engineer on the Central Infrastructure Team, you will build microservices that acts as
the core of all our games, facilitate the processing and recording of billions of events per day,
support critical systems for marketing, finance. You will be responsible for some of our biggest
projects as you build APIs and infrastructure that scales to millions of players in real-time
games.
What You’ll Do:
• Implement flexible, reusable, and scalable solutions to improve our data pipeline
• Develop microservices for critical infrastructure like A/B tests, Offer recommendation, etc
that is mission-critical to the business
• Develop microservices for our games such as real-time communication platforms,
leaderboard, etc
• Build and maintain integrations with third-party APIs that you suggest or write yourself
• Build scalable web tools (including open source tools) to support data analysis and
visualization for the company and influence what we build for our games’ players
What You Bring to the Central Infrastructure Engineering team:
• Minimum of 7 years of professional experience (including 3+ years backend experience)
• A degree in computer science, engineering, or relevant field
• Experience leading complex projects, preferably involving distributed systems
• Deep experience with AWS, GCP, or Hadoop, and related backend technologies is a
plus
• Strong skills in data structures, algorithms, software design, and OOP
• A love for delighting users, both internal and external, with reliable tools, data, and
creative and highly technical solutions to their problems
Extra Gems for:
• Experience in working with microservices

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5–10 years of experience in backend or full-stack development (Java, C#, Python, or Node.js preferred).
•Design, develop, and deploy full-stack web applications (front-end, back-end, APIs, and databases).
•Build responsive, user-friendly UIs using modern JavaScript frameworks (React, Vue, or Angular).
•Develop robust backend services and RESTful or GraphQL APIs using Node.js, Python, Java, or similar technologies.
•Manage and optimize databases (SQL and NoSQL).
•Collaborate with UX/UI designers, product managers, and QA engineers to refine requirements and deliver solutions.
•Implement CI/CD pipelines and support cloud deployments (AWS, Azure, or GCP).
•Write clean, testable, and maintainable code with appropriate documentation.
•Monitor performance, identify bottlenecks, and troubleshoot production issues.
•Stay up to date with emerging technologies and recommend improvements to tools, processes, and architecture.
•Proficiency in front-end technologies: HTML5, CSS3, JavaScript/TypeScript, and frameworks like React, Vue.js, or Angular.
•Strong experience with server-side programming (Node.js, Python/Django, Java/Spring Boot, or .NET).
•Experience with databases: PostgreSQL, MySQL, MongoDB, or similar.
•Familiarity with API design, microservices architecture, and REST/GraphQL best practices.
•Working knowledge of version control (Git/GitHub) and DevOps pipelines.
Understanding of cloud platforms (AWS, Azure, GCP) and containerization (Docker, Kubernetes).
About the Role
We're seeking a Python Backend Developer to join our insurtech analytics team. This role focuses on developing backend APIs, automating insurance reporting processes, and supporting data analysis tools. You'll work with insurance data, build REST APIs, and help streamline operational workflows through automation.
Key Responsibilities
- Automate insurance reporting processes including bordereaux, reconciliations, and data extraction from various file formats
- Support and maintain interactive dashboards and reporting tools for business stakeholders
- Develop Python scripts and applications for data processing, validation, and transformation
- Develop and maintain backend APIs using FastAPI or Flask
- Perform data analysis and generate insights from insurance datasets
- Automate recurring analytical and reporting tasks
- Work with SQL databases to query, analyze, and extract data
- Collaborate with business users to understand requirements and deliver solutions
- Document code, processes, and create user guides for dashboards and tools
- Support data quality initiatives and implement validation checks
Requirements
Essential
- 2+ years of Python development experience
- Strong knowledge of Python libraries: Pandas, NumPy for data manipulation
- Experience building web applications or dashboards with Python frameworks
- Knowledge of FastAPI or Flask for building backend APIs and applications
- Proficiency in SQL and working with relational databases
- Experience with data visualization libraries (Matplotlib, Plotly, Seaborn)
- Ability to work with Excel, CSV, and other data file formats
- Strong problem-solving and analytical thinking skills
- Good communication skills to work with non-technical stakeholders
Desirable
- Experience in insurance or financial services industry
- Familiarity with insurance reporting processes (bordereaux, reconciliations, claims data)
- Experience with Azure cloud services (Azure Functions, Blob Storage, SQL Database)
- Experience with version control systems (Git, GitHub, Azure DevOps)
- Experience with API development and RESTful services
Tech Stack
Python 3.x, FastAPI, Flask, Pandas, NumPy, Plotly, Matplotlib, SQL Server, MS Azure, Git, Azure DevOps, REST APIs, Excel/CSV processing libraries
Job Summary:
As a Java Spring Boot Developer, you will play a key role in designing, developing, and maintaining robust backend services and APIs. With 2.5+ years of experience, including knowledge in Kotlin, you will work alongside a cross-functional team to build scalable and performant systems.
Key Responsibilities:
- Design, develop, and maintain efficient, reusable, and reliable Java and Kotlin code
- Build and consume RESTful APIs and microservices using Spring Boot
- Ensure the best possible performance, quality, and responsiveness of applications
- Collaborate with product managers, QA engineers, and DevOps for end-to-end delivery
- Troubleshoot and resolve performance bottlenecks, bugs, and technical issues
- Participate in code reviews, knowledge sharing, and continuous improvement
Required Skills & Qualifications:
- 2.5+ years of experience with Java and Spring Boot
- Strong understanding of RESTful APIs, MVC, and microservices architecture
- Experience with relational and NoSQL databases
- Proficiency with Git and Agile/Scrum methodologies
Preferred Skills:
- Familiarity with Docker, Kubernetes, and CI/CD tools
- Exposure to cloud platforms such as AWS or Azure
- Experience with unit testing and test automation frameworks
Essential Skills (Two top
skills)
Java 8
AWS – ECS, SQS
B) Other Information
Educational
Qualifications
Graduate
Experience Mid-level (5+)
Minimum Qualifications:
Java 8 bases web application developer
hands on experience with writing sql queries (RDS)
AWS knowledge like ECS, SQS;
understands CICD and git
webserver – tomcat
uses best practice for code quality, static & dynamic
security scans
Bachelor’s in computer science/Information
Technology or related field
Outstanding at triage or analysis of situations for
production support
Excel with on time delivery with minimal direction
Effective verbal and written communicator
Effective participant of requirements gathering
requirements analysis
Desired Experience
3+ years
Job Description
What You’ll Do
- Design financial systems for scale. Measure, plan, iterate.
- Writing reusable, testable, and efficient code
- Design and implementation of low-latency, high-availability, and performant applications
- Setup and own the engineering architectures built around event sourcing, application sharding, database sharding, service communication mesh, etc.
- The tech: Go, Google Cloud Spanner, Kafka, Redis
What you bring to the table
- 3+ years of experience. Relevant experience is preferred.
- Knowledge of 2 common programming languages - Python & Go / Java & Node / Rust
- Comfortable in linux command line, AWS or GCP
- Strong unit test and debugging skills
- Great communication skills
Bonus if you have…
- Love building great products and engineering systems from scratch
- Are a Self-starter, Hustler and Curious to Learn
- Have an understanding of fundamental design principles behind a scalable application
- Thrive in an early-stage startup environment with less stability and more ambiguity
- Have an interest in financial products and/or cryptocurrency
Responsibilities:
Collaborate with product managers and other stakeholders to understand business requirements and translate them into technical specifications.
Design, develop, and maintain high-quality software solutions, ensuring scalability, performance, and security.
Write clean and efficient code using best practices, and conduct code reviews to ensure code quality and adherence to coding standards.
Participate in architectural discussions and propose technical solutions that align with business objectives.
Collaborate with cross-functional teams to integrate software components and troubleshoot issues.
Conduct comprehensive testing of software applications, including unit testing, integration testing, and automated testing.
Identify and resolve technical issues, bugs, and performance bottlenecks.
Stay updated with the latest industry trends, technologies, and best practices, and share knowledge with the team.
Mentor and guide junior engineers, fostering a culture of continuous learning and growth.
Requirements:
Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
Minimum of 4 years of proven experience as a software engineer, with a focus on backend development.
Strong proficiency in programming languages such as Java, Python, or C++.
Extensive experience with web application development frameworks such as Spring, Django, or Flask.
Solid understanding of database systems (SQL and NoSQL) and proficiency in writing complex queries.
Experience with cloud platforms such as AWS, Azure, or Google Cloud.
Strong knowledge of software engineering principles, design patterns, and best practices.
Familiarity with Agile methodologies and experience working in an Agile/Scrum environment.
Excellent problem-solving skills and ability to work effectively in a fast-paced, collaborative environment.
Strong communication and interpersonal skills, with the ability to effectively communicate complex technical concepts.
Benefits:
Competitive salary and comprehensive benefits package.
Opportunities for professional growth and career advancement.
Collaborative and inclusive work environment.
Cutting-edge technology stack and access to the latest tools and resources.
Chance to work on impactful projects and shape the future of the lending industry.
upcred.ai is an equal-opportunity employer. We value diversity and encourage individuals from all backgrounds to apply.
- 3 - 6 Years of Experience in Product Development - Experience in Java (8 or 11+), Spring (4+), Spring Boot (2.4+) is a must.
- Understands requirements well and comes up with an efficient design
- Develops complex, well-backed and bug-free products.
- Estimates accurately.
- Takes well-reasoned tech decisions keeping in mind goals and trade-offs
- Become a go-to person in more than one area.
- Provide technical mentoring to team
- Communicates clearly, gets clarifications, and establishes expectations for all parties
- Helps establish SDLC best practices and high standards of code quality
- Demonstrates excellent problem solving & debugging skills
- Proactively identifies and resolves issues in requirements, design, and code
Ideal Candidate Profile :
- Solid experience in Java, Spring Boot, hibernate is a must.
- Solid experience in Java Multithreading, Streams, and Lambda Functions is a must.
- Solid understanding of Apache Products.
- Should have experience in cloud computing (AWS is desired).
- Has an ability to quickly learn and contribute in multiple codebases
- Overcomes roadblocks and requires minimal oversight
- Takes initiatives to fix issues/tech debts before assigned to him/her
- Able to deep dive into the codebase and advise QA of possible regression impact
- Communicates tech decisions through design docs and tech talks
- Has delivered projects with end-to-end accountability
- Keeps track of industry trends and introduces the right tech/tools for a given job
- Excellent understanding of software engineering practices, design patterns, data structures, algorithms
- Experience in product driven organization

- Must have experience with Amazon Web Services (AWS)
- Experience with Python/Node.JS/Typescript
- At least 2+ years as back-end software developer
- A deep understanding of the benefits of the Microservice and serverless paradigms
- Prepared technical documentation, and understand why it’s important
- Understanding of database principals: SQL and NoSQL
- Collaboration and communication skills (you’ll be working with clients and internal teams)
- An understanding of programming fundamentals (OOP, data structures, algorithms)
- Familiarity and comfort with REST API, Postman
- The ability to work independently or within a team structure.
- A “lead by example” attitude, and motivation to deliver work you’re proud of












