Go Backend Engineer II
Fliff
Software Engineering
Philadelphia, PA, USA
USD 130k-145k / year
Posted on Oct 17, 2025
Fliff unpacks sports gaming into social, free-to-play games for all types of sports fans. We've built a social sports gaming experience that allows users to compete for leaderboard positioning, to achieve badges and build their status within the game.
We are pioneering play-for-fun sports gaming, with our flagship social sportsbook experience that includes sweepstakes promotions and loyalty rewards. We provide sports fans with fun, engaging, and free-to-play alternatives to real money gaming.
What We’re Looking For
We’re seeking a Go Engineer II to help design, build, and maintain distributed backend systems serving passionate sports fans.
You’ll join the Fantaasy team, a cross-functional group of engineers and product managers delivering scalable, reliable, and low-latency solutions that power applications across mobile and desktop.
You should bring solid experience in backend development, an eagerness to learn from senior engineers, and a passion for writing clean, maintainable code. Domain experience in sports betting, gaming, or real-time data platforms is a plus but not required.
What You’ll Do
- Develop and maintain backend services using Go
- Collaborate with teammates to design and deliver new features end-to-end
- Build scalable solutions that can handle large volumes of traffic
- Write clean, maintainable, and efficient code
- Contribute to testing strategies (unit, integration, end-to-end) to ensure quality and reliability
- Participate in code reviews, learning from feedback and providing constructive input to peers
- Troubleshoot and resolve production issues with support from senior engineers
- Continuously learn and grow your skills while contributing to team knowledge-sharing
Required Skills & Experience
- 2+ years of overall software development experience
- Proficiency in Go (or another backend language with interest in learning Go)
- Understanding of distributed systems or microservices
- Solid grasp of data structures, algorithms, and backend development best practices
- Experience with relational and/or NoSQL databases
- Exposure to cloud providers (AWS, GCP, or Azure)
- Familiarity with CI/CD and containerization (e.g., Docker, Kubernetes)
- Knowledge of observability tools (Datadog, Prometheus, Grafana, OpenTelemetry)
- Excellent communication and problem-solving skills, with the ability to work effectively in a collaborative team environment
Nice to Have
- Prior experience in the sports betting, gaming, or real-time data space
- Familiarity with event-driven systems, queues, or streaming platforms (Kafka, RabbitMQ, etc.)
- Exposure to performance optimization or debugging distributed systems
- Familiarity with front-end or mobile development concepts to better collaborate with cross-functional teams
Benefits:
- The annual salary for this role ranges from $130,000 to $145,000, depending on experience and background.
- Unlimited/ Flexible Time Off: Flexible vacation policy
- Health benefits with 100% paid premiums* for medical, dental, and vision plans for employees and dependents, plus an on-demand healthcare concierge.
- Pre-tax savings plans for healthcare, with up to a $500 annual employer contribution to the HSA (if enrolled in the HSA medical plan).
- Employee-sponsored 401(k) to help reach your financial goals.
- Fully remote work environment.
- Generous parental leave.
- Professional development opportunities in a dynamic, global setting.
Perks:
- Work Remotely.
- $500 work-from-home stipend + Equipment & Accessories.
- Opportunity for professional development in a dynamic, global setting.
- A supportive, collaborative, and knowledge-driven workplace.
- An engaging and challenging role with the freedom to innovate and develop effective solutions.
We are a multinational company with our headquarters based in Philadelphia, and offices in New York, Austin, and Sofia, Bulgaria. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is welcoming and friendly, and the work that we do is always interesting and rewarding. Wherever we are in the world, we pride ourselves on being a close-knit, focused team that is:
Welcoming and Friendly
We want to reflect the diversity of the cities we serve. By creating an inclusive culture where everyone can thrive, we’ll make Fliff better for employees and customers alike.
Lively and Creative
We respect and value each other’s ideas, experience and expertise. There is no such thing as a bad idea; only ideas that are executed and ideas that are discarded after consideration.
Stimulating and Rewarding
We know bright minds love a challenge, and we understand your desire to see your hard work pay off. We’ll make sure your daily tasks align with your career ambitions as we grow together.
Equal Employment Opportunity Statement
Fliff is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status.
Join Our Team!
If you're ready to be part of an exciting, innovative, and dynamic team, apply now to help shape the future of sports gaming with Fliff.
IMPORTANT NOTICE: The privacy and security of applicant information is paramount and we take fraud attempts very seriously. Please note that Fliff will never ask for payment or personal financial information during the application process. All of our legitimate job opportunities can be found on our official career site (https://www.getfliff.com/careers). Please be cautious of communications and links that come from non-company email addresses (@getfliff.com), social media messaging platforms or unsolicited phone calls.
