Brighton Hove & Albion In October 2018, Łopata signed a two-year contract with
Premier League side Brighton & Hove Albion, choosing them ahead of Bristol City. He scored within four minutes of his debut against
VCD Athletic, though also gave away a
penalty kick and was booked for swearing at the
referee. In January 2020, following a meeting with manager
Dariusz Dudek, Łopata joined Polish
I liga side
Zagłębie Sosnowiec on loan until the end of the
2019–20 season. On 29 February, he made his professional debut in a 2–0 win over
Miedź Legnica. He was released by Brighton at the end of the 2019–20 season.
Sheffield United On 25 August 2020, Łopata joined
Sheffield United on a three-year contract, where manager
Chris Wilder got him to train with the first-team rather than the
Academy. On 10 August 2021,
Slavisa Jokanovic handed him his debut at
Bramall Lane and he went on to play the full match in a 1–0 win over
Carlisle United in the
EFL Cup. On 28 October, he was loaned to
National League side
Southend United, initially until January 2022, along with fellow Sheffield United player
Zak Brunt. He featured 18 times, keeping four clean sheets, helping
Kevin Maher's side to go on a 14-game unbeaten league run. Sheffield United rejected a transfer bid from a Polish club but allowed him a permanent transfer to Southend to find first-team football as manager
Paul Heckingbottom said "it became clear he didn't want to be here anymore".
Southend United On 2 September 2022, Łopata joined Southend United permanently for an undisclosed fee, signing a two-year deal with an option for another year. He made an immediate impact at
Roots Hall as Southend went nine league games unbeaten, keeping seven clean sheets. He scored his first goal for the club in a 3–0 win at
Barnet. In March 2023, he terminated his contract with the club, apparently unhappy at how players had been treated over unpaid wages, a decision supported by
The Football Association's Contract Disputes Tribunal.
Woking On 27 March 2023, Łopata joined
Woking on a contract until the end of the
2022–23 season. Following five appearances for
Darren Sarll's Cardinals, including a National League play-off quarter-final defeat to
Bromley at the
Kingfield Stadium, Łopata announced he would be leaving the club at the end of his contract in June via his
Instagram account.
Barnsley On 6 June 2023, Łopata signed a four-year contract with
League One club
Barnsley. He made his debut at
Oakwell in a 7–0 win over
Port Vale on 5 August.
Bobby Hassell, the club's interim
director of football, noted that he "started the season in brilliant form and integrated smoothly into the squad". However, a
clavicle fracture saw him lose his place in
Neill Collins's team and he found stiff competition for defensive places upon his return to fitness. On 1 February 2024, Łopata joined Port Vale on loan for the remainder of the
2023–24 season. Manager
Andy Crosby and
director of football David Flitcroft said that he would strengthen the club's defensive options. He made his debut at
Vale Park in a 1–0 defeat to
Leyton Orient on 6 February, earning praise from interim manager Will Ryder for his performance. However, he could not gain a first-team place under new manager
Darren Moore. On 29 August 2024, Łopata joined
Scottish Premiership club
Ross County on loan for the
2024–25 season. He said he hoped the move would improve his chances of getting an international call-up. He featured 31 times in the campaign. He said he had an attachement to the club after growing up near the
Memorial Stadium. He had an unfortunate debut, however, as he was substituted at half-time in a defeat at
Chesterfield as manager
Darrell Clarke recorganised the team following a red card for right-back
Joel Senior. On 6 January, he returned to Barnsley after his loan was ended early. He had made 17 appearances in all competitions for Rovers, and had been sent off in his penultimate appearance for a reckless challenge on
Swindon Town's
Gavin Kilkenny. On 15 January 2026, he returned to League Two on loan at
Walsall until the end of the
2025–26 season as head coach
Mat Sadler looked to increase his defensive options. Sadler spoke out the following month to say that Łopata's presence had allowed him to shake up the team's defence. ==International career==