Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Software Engineer

$175k - $200k

Rival Inc

The role

We're hiring a Senior Software Engineer to be the hands-on technical owner of our live platform. You'll take over a production TypeScript codebase that enterprise sports and brand partners depend on every day. You'll write a large share of the code yourself, and you'll set the engineering standards for our external development partner.

This is a senior role, not a management role. You'll work in the code every day and make the architecture calls. You'll also be the person our partners and our dev shop look to on technical questions. You'll work directly with the CEO and product lead, and you'll have real influence on where the platform goes next.

What you'll do

  • Own the architecture, codebase and day-to-day delivery across our Next.js front ends and NestJS GraphQL/REST services.
  • Write production code across the full stack: new game types, real-time features, partner integrations and platform improvements.
  • Take over hands-on responsibility for reliability, deployments, monitoring and incident response.
  • Complete a structured handoff from our current technical advisor, and write durable documentation of systems, deployment processes and partner-specific integrations.
  • Review and guide work from our external development partner: set standards, review pull requests and hold the bar on quality.
  • Find technical debt and operational risk, then fix it in an order that doesn't slow down shipping.
  • Turn product priorities and partner requirements into practical technical plans, estimates and releases.
  • Support enterprise partners on integration planning, security questionnaires and technical discovery calls.

Our stack

  • TypeScript throughout: Next.js (App Router), React, Tailwind CSS, Apollo Client
  • NestJS GraphQL and REST services, Prisma, Zod, BullMQ workers, Socket.IO
  • PostgreSQL, Redis, AWS S3
  • Hosting on Vercel (front ends) and Render (APIs, Postgres, Redis); Docker Compose locally
  • Clerk authentication, JWTs, API keys and HMAC-signed webhooks
  • Jest, Vitest, ESLint/Prettier, Sentry, Pino structured logging
  • Mixpanel and Meta Pixel for analytics

What we're looking for

  • 6+ years of professional software engineering, with real ownership of production systems used by customers.
  • Deep TypeScript experience and strong full-stack skills: React/Next.js on the front end, Node.js (ideally NestJS) and GraphQL on the back end.
  • Solid PostgreSQL and data-modeling skills; Prisma experience is a plus.
  • A track record of improving systems you inherited while keeping customer delivery going.
  • Comfort owning production: deployments, observability, debugging live issues and incident response.
  • Experience working with contractors or an external dev shop, including code review, setting standards and accountability.
  • Clear communication with non-technical teammates and enterprise partners.
  • Low ego, high accountability, and comfort in a lean, fast-moving startup.

Nice to have

  • Sports, media, gaming, loyalty, rewards or other high-engagement consumer products.
  • Real-time or event-driven systems: WebSockets, queues, leaderboards, notifications, gamification.
  • Identity, SSO, CRM or customer-data-platform integrations.
  • Enterprise security reviews or technical diligence.
  • Experience as an early or founding engineer at a startup.

Why Rival

You'll get real ownership of a live platform with established enterprise customers, and a short path from your code to products that millions of fans use. As we grow the team, you'll help shape it.

Compensation: $175,000-$200,000 + equity

Vacancy posted 6 hours ago
Similar jobs that could be interesting for youBased on the Senior Software Engineer in Jacksonville, FL vacancy
  • $42 - $57 per hour

    DescriptionKforce has a client that is seeking a Senior Software Engineer in Jacksonville, FL.Summary:Our client is looking for someone to join a collaborative and innovative team focused on building advanced software solutions that power real-time simulation environments... 
    Senior

    KForce

    Jacksonville, FL
    3 days ago
  •  ...Software Engineer / Sr. Software Engineer Atomic · NYC, Boston, Austin, or Reno; remote positions also available The Company Most companies still plan their supply chains (quantities, mix, allocations, timing, etc.) in spreadsheets or legacy software. Atomic... 
    Senior
    Remote work

    Atomic

    Jacksonville, FL
    6 hours ago
  •  ...Senior Software Engineer We are seeking a senior software engineer to join our backend team. The successful candidate for this full-time role will be an opinionated, but collaborative engineer who exemplifies integrity, respect, collaboration, commitment to clients... 
    Senior
    Full time

    Kingfield

    Jacksonville, FL
    3 days ago
  •  ...clients to focus on their core business while AceDevShop brings their digital vision to life. We are looking for a US-based Senior Software Engineer to join our team in a part-time, client-facing role. This position requires only 4 to 5 hours per week, but the person... 
    Senior
    Part time
    Remote work
    Flexible hours

    Acedevshop

    Jacksonville, FL
    1 day ago
  •  ...Senior Software Engineer (C++/Qt/Linux)-Medical Device Location : Remote Position Overview We are seeking a Senior Software Engineer to join a leading medical device organization developing innovative robotics and enabling technologies. In this role, you will... 
    Senior
    Remote work

    IntePros

    Jacksonville, FL
    6 hours ago
  • Oversee proprietary applications and automation implementation over cloud infrastructure. Develop scripts for automation, manage batch cycles, and troubleshoot server, network, and database issues. Requirements: Requires a Bachelor's or Diploma degree in Computer Science...
    Senior

    SS&C Technologies

    Jacksonville, FL
    2 days ago
  •  ...Interested in building modern software, owning meaningful technical decisions, and putting AI to work in real products? The focus...  ...• Improve platform performance, reliability, security, and engineering practices. • Apply AI-assisted development tools and, where... 
    Senior

    Hirewell

    Jacksonville, FL
    18 hours ago
  •  ...We’re hiring a Senior Software Engineer to support a major technology initiative focused on new customer-facing web and mobile experiences, a unified design system, and AI-powered capabilities across products. The initiative is focused on raising the engineering bar for... 
    Senior
    Contract work
    Shift work

    Alined Consulting Group

    Jacksonville, FL
    6 hours ago
  • $140k - $150k

     ...0/yr - $150,000.00/yr Direct message the job poster from Harnham Role Recruitment Consultant - Data & Software Engineering @ Harnham (NYC) Senior Software Engineer - Full Stack (React Focus) Insurence Tech Location: Jacksonville, FL (onsite 5 days per... 
    Senior
    Permanent employment
    Full time

    Harnham

    Jacksonville, FL
    2 days ago
  •  ...Are you a seasoned Software Engineer seeking your next opportunity to make a significant impact? Do you bring curiosity and drive, coupled with a wealth of experience, to excel in a fast-paced and dynamic environment? Do you thrive in collaborative settings, valuing engineering... 
    Senior

    BlueMatrix

    Jacksonville, FL
    1 day ago
  •  ...relevant combo of work and education). Education Desired: Bachelor of Computer Engineering. Company Name: FIS Position Overview FIS Management Services, LLC seeks Software Engineer Senior in Jacksonville, FL to analyze, design, program, debug and modify software... 
    Senior
    Full time
    Local area
    Remote work
    Work from home

    DEV INC

    Jacksonville, FL
    18 hours ago
  • $150k - $200k

     ...AI healthcare. About this role This role sits on the Engineering team and reports to the Engineering Manager. You will be handed...  ...not just solve it Requirements ~5+ years of professional software engineering experience ~ Solid expertise in at least one of... 
    Senior
    Remote work
    Work from home
    Flexible hours

    Clearstep

    Jacksonville, FL
    2 days ago
  •  ...Responsibilities Kforce has a client that is seeking a Senior Software Engineer in Jacksonville, FL.Summary:Our client is looking for someone to join a collaborative and innovative team focused on building advanced software solutions that power real-time simulation... 
    Senior
    Hourly pay
    Contract work

    Kforce

    Jacksonville, FL
    18 hours ago
  •  ...Responsibilities: - Lead the development of software solutions that will meet or exceed...  ...: -8+ years of full-stack software engineering experience developing enterprise web...  ...and internal value analysis including seniority and merit systems, as well as internal... 
    Senior
    Minimum wage
    Contract work
    Temporary work
    Work experience placement

    MAXIMUS

    Jacksonville, FL
    3 days ago
  • $140k - $168k

     ...Group   Advantage Design Group, a multimedia production and software development firm, is the largest online orientations...  ...About the Opportunity   We are looking for an experienced Senior Software Engineer who wants to stay close to the code and have a real say in... 
    Senior
    Full time
    Remote work
    Flexible hours
    2 days per week

    Advantage Design Group

    Jacksonville, FL
    a month ago
  •  ...Senior Software Engineer – Backend / Event-Driven Systems Jacksonville, FL | Hybrid | Long-Term Contract (1+ Year) ARC Group is seeking a Senior Software Engineer to join a small, highly specialized engineering team responsible for the technical integrity and continued... 
    Senior
    Long term contract
    Contract work
    Part time
    Local area

    ARC Group

    Jacksonville, FL
    9 days ago
  •  ...Job Description Job Description SENIOR SOFTWARE ENGINEER BACKEND / EVENT-DRIVEN SYSTEMS Jacksonville, FL Southside | Hybrid Long-Term Contract | 1+ Year Expected ARC Group has an immediate opportunity for a Senior Software Engineer with strong hands-on backend... 
    Senior
    Long term contract
    Contract work
    Local area
    Immediate start

    ARC Group

    Jacksonville, FL
    2 days ago
  • We are seeking a Senior PHP Developer to support the modernization of an existing enterprise application environment. This role will focus on reviewing and improving legacy PHP code, identifying opportunities for refactoring and modernization, and helping transition applications... 
    Senior

    Robert Half

    Jacksonville, FL
    4 days ago
  •  ...Worth AI, a leader in the computer software industry, is looking for a Senior Engineer to join our Platform team with a singular mission: to make our engineering organization faster, more reliable, and more joyful. In this role, you won't just be building features for... 
    Senior
    Work at office
    Local area
    Remote work
    Work from home
    Flexible hours
    Shift work

    Jobleads-US

    Jacksonville, FL
    1 day ago
  •  ...Senior Software Developer – React / React Native ARC Group is recruiting for our client, a Fortune 500 company, for a Senior Software Developer position in Jacksonville, FL. This is a hybrid role requiring 3 days per week onsite and 2 days remote . We are looking... 
    Senior
    Part time
    Remote work
    3 days per week

    ARC Group

    Jacksonville, FL
    4 days ago
  • $49.98 - $71.4 per hour

     ...Title: Senior Application Security Engineer Location: Jacksonville, FL Position Type: Contract - W2 Compensation Pay Range:$49.98-$...  ...or equivalent experience. 5+ years in cybersecurity, software engineering, or application security. 3+ years in application... 
    Senior
    Contract work

    Mitchell Martin

    Jacksonville, FL
    2 days ago
  • Company Descriptionðð¼ We're Nagarro. We are a digital product engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale — across all devices and digital mediums, and our people exist... 
    Senior

    Nagarro

    Jacksonville, FL
    3 days ago
  • $95.6k - $188.4k

    Position Summary Join our Deloitte AI & Engineering team to transform technology platforms,...  ...innovation. Work You’ll Do As a Project Software Engineer III on the Engineering as a...  ...From entry-level employees to senior leaders, we believe there’s always room... 
    Senior
    Local area
    Flexible hours

    Deloitte

    Jacksonville, FL
    1 day ago
  •  ...We are seeking a highly experienced Senior SAP FICO Consultant with 12+ years of hands-on experience in SAP Finance and Controlling modules. The ideal candidate will lead design, configuration, and implementation efforts while partnering with business stakeholders to... 
    Senior

    Maitsys

    Jacksonville, FL
    1 day ago
  • $125.6k - $188.4k

    Citigroup Inc. is seeking a Digital S/W Eng Lead Analyst in Jacksonville, Florida. The role encompasses providing architectural guidance and mentoring within application development and driving large projects. A deep understanding of core business functions and experience...
    Senior
    Full time

    Citigroup Inc

    Jacksonville, FL
    1 day ago
  • $120k - $175k

     ...Job Details A rapidly growing 800 Person Medical Device company in Rockville, MD is currently hiring for multiple Senior Java Software Engineers! Base Pay Range $120,000.00/yr - $175,000.00/yr Why Join Us? ~ Competitive Base Salary! ~10% Bonus ~4%... 
    Senior
    Temporary work
    Currently hiring
    Local area
    Flexible hours

    Jobot

    Jacksonville, FL
    3 days ago
  •  ...Zohorecruit seeks a Senior Full Stack Java with AWS Developer for a remote role based in the United States. You will design and build scalable backend services, integrate with AWS, and deliver robust front-end experiences. Ideal candidates have strong Java, AWS, microservices... 
    Senior
    Remote job

    Jobleads-US

    Jacksonville, FL
    1 day ago
  •  ...professionalism. We are seeking an experienced AWS solution design engineer/architect to join our infrastructure cloud team. The...  ...product features efficiently and confidently them into production.As Senior SRE, you will be responsible for providing leadership, design and... 
    Senior

    Black Knight Financial Services

    Jacksonville, FL
    2 days ago
  • $110.7k - $372.9k

    Position Summary Senior Agentic AI Engineer — Healthcare AI Three hundred fifty million Americans rely on a healthcare system whose decision...  ...build, deploy, and operate verticalized AI systems across software, data, models, and cloud infrastructure — engineered for... 
    Senior
    Local area
    Visa sponsorship

    Deloitte

    Jacksonville, FL
    10 hours ago
  • $110.7k - $218.3k

     ...scientists, operators, creatives, designers, engineers, and architects. Our team balances...  ...automation of configuration logicExperience with software development, scripting, and automation...  ...From entry-level employees to senior leaders, we believe there’s always room... 
    Senior
    Local area
    Visa sponsorship

    Deloitte

    Jacksonville, FL
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Software Engineer. Be the first to apply!