Application Programming Interfaces

Job Description:

We are seeking an experienced developer to design and build cross-platform mobile applications integrated with enterprise backend systems. The role involves working on both mobile (Android & iOS) using Kotlin Multiplatform and backend services using Java / Spring Boot.

Key Responsibilities:

• Develop mobile applications for Android and iOS using Kotlin Multiplatform (KMP)
• Design and implement reusable shared modules across platforms
• Develop and maintain backend services using Java / Spring Boot
• Build and consume REST APIs
• Integrate authentication and security mechanisms
• Perform testing, debugging, and performance optimization

Company Description

BeBetta is a gamified platform designed for gamers who crave excitement, engagement, and real-world rewards. By playing games and making live predictions, users earn BetCoins, which can be redeemed for tangible prizes. Our unique approach blends gaming, predictions, and rewards, driving an immersive experience that revolutionizes user engagement. We are a high-growth, data-driven, and gamified tech startup committed to innovation and impact.

The Opportunity:

BeBetta is building the future of fan engagement. To do this, we need a backend that can handle millions of concurrent users making real-time predictions during live events. This requires a shift in our technology towards systems built for massive scale and low latency.

That’s where you come in. We are looking for a Senior Backend Engineer to lead our transition to a Go-based microservices architecture. You will be the driving force behind our most critical systems—the prediction engine, the rewards ledger, the real-time data pipelines. While our roots are in Node.js, our future is in Go, and you will be instrumental in building that future.

What You'll Achieve:

• Architect our core backend in Golang: You will design and build the services that are the backbone of the BeBetta experience, ensuring they are blazingly fast and incredibly reliable.
• Solve hard concurrency problems: You'll tackle challenges unique to real-time gaming and betting, ensuring fairness and accuracy for thousands of simultaneous user actions.
• Drive technical strategy: You will own the roadmap for evolving our architecture, including the thoughtful migration of essential services from Node.js to Go.
• Elevate the engineering bar: Through mentorship, exemplary code, and architectural leadership, you will help make our entire team better.
• Ship with impact: You will see your work go live quickly, directly enhancing the experience for our growing user base.

What You'll Bring:

• A track record of building and deploying high-performance backend systems in Golang.
• Senior-level experience (4+ years) in system design, microservices, and API development.
• Pragmatic experience with Node.js and an understanding of how to manage and migrate a monolithic or service-based system.
• Deep knowledge of database principles (PostgreSQL preferred) and high-performance data access patterns (using tools like Redis).
• Expertise in modern infrastructure: Docker, Kubernetes, and a major cloud provider (GCP/AWS).
• A strong belief that testing, observability, and clean architecture are not optional.
• An innate curiosity and a passion for solving complex problems, whether they're in code or on a whiteboard.

Why You'll Love Working Here:

This isn't just another backend role. This is a chance to put your fingerprint on the foundational technology of a fast-growing company in the exciting world of sports tech and gaming. You'll have the autonomy to make big decisions and the support of a team that's all-in on the mission.

Company Description

SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.

The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.

We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.

SteelEye is a fast growing FinTech company based in London and has offices in Bangalore and Paris, that offers a data platform to help financial institutions such as Investment Banks, Hedge Funds, Brokerage Firms, Asset Management Firms to comply with financial regulations in the European Union. Our clients can aggregate, search, surveillance and report on trade, communications and market data. SteelEye also enables customers to gain powerful insights from their data, helping them to trade with greater efficiency and profitability.

The company has a highly experienced management team and a strong board, who have decades of technology and management experience and worked in senior positions at many leading international financial businesses.

We are looking to hire a seasoned Sr API Developer to join us as we start on our next phase of growth. We have a culture of openness, collaboration, and the passion to get things done whilst appreciating the importance of a good work life balance.
Being part of a start-up can be equally exciting as it is challenging. You will be part of the SteelEye team not just because of your talent but also because of your entrepreneurial flare which we thrive on at SteelEye. This means we want you to be curious, contribute, ask questions and share ideas. We encourage you to get involved in helping shape our business.

Job Description

What you’ll do

• Develop new features and functionality in SteelEye's best breed SaaS application
• Work on setup API Developer for our growing SaaS product
• Ensure the software is up-to-date with latest technologies
• Triage issues and enhance core features of our existing API's for rapidly growing client base
• Design and architech our API layer solving problems around scale and performance
• Be part of great team building a fantastic product!

What we’re looking for

• You are experienced Python Developer, with minimum 5 years in commercial Python experience
• You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
• You have excellent knowledge of data structures, software design patterns and software architecture
• You are comfortable working in a fast-paced environment and can adapt to changing requirements
• You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
• Familiarity/Experience with Elasticsearch is a huge plus
• Familiarity/Experience with FastAPI nice to have
• You are experienced Python Developer, with minimum 5 years in commercial Python experience
• You have experience building REST-based API's using Flask, Django or FastAPI in a production environment
• You have excellent knowledge of data structures, software design patterns and software architecture
• You are comfortable working in a fast-paced environment and can adapt to changing requirements
• You have experience with code versioning (Git) and CI/CD (Jenkins, Circle, etc..) tools
• Familiarity/Experience with Elasticsearch is a huge plus
• Familiarity/Experience with FastAPI nice to have

• 3-5 Years of experience in Backend Development.
• Must have experience in Python (FLASK framework).
• Have Deep understanding of how RESTful APIs work.
• Familiar with various design and architectural patterns that can work at scale.
• Sound knowledge of NoSQL/SQL Databases (Mongo DB preferred).
• Strong experience with at-Cloud technology, preferably AWS or GCP or Azure.
• Core experience in developing complex backend systems.
• Communicating complex technical concepts to both technical and non-technical audiences.
• Passionate about application scalability, availability, reliability, and security.